TARLINE

Tar Report for Half Moon Bay State Beach

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California coast · San Francisco

Half Moon Bay State Beach

No Recent Reports

Tar/Oil – / 10 No Recent Reports · Unknown, Not Clean Surf 9-10 ft @ 11.8 s Estimated Breaking Height And Its Period

At A Glance

Tar

Reading the tar score Higher is cleaner. 10 means less tar reported; lower scores mean more tar or oil.Based on beach reports. Reports from the past 72 hours count, with more weight given to recent, better-supported reports. The lowest sand, water or smell score sets the overall score.A dash means unknown. No reports does not mean a clean beach.How scoring works
– / 10
No Recent Reports
Sand – no reports Water – no reports
Reports today 0
no tar reports on record

Surf

Reading the surf Height & period. Estimated breaking-wave height at this beach, followed by seconds between waves. The buoy readings below describe conditions offshore instead.Word & dots. More filled dots mean better predicted surf, based on waves and wind. Unrated means an input is missing.Before paddling out. This is an estimate, not a live surf check or a safety rating. Check conditions at the beach.How scoring works
9-10 ft @ 11.8 s
overhead
Good 4 out of 5
Offshore Swell obs 1h ago
5.4 ft Height 15.4 s Period 237° WSW From
San Francisco Bar Buoy. 10/20 11:00 PM
Model: Tarline Zyphyr Model v4

Temp

Air and water temperatures Air. The weather forecast for this beach.Water. A nearby buoy reading. Water at the shoreline can be warmer or colder.Units & time. Temperatures are in °F. The water reading's time is Pacific time.
Air 56.8 °F
Water 60.6 °F
Water: San Francisco Bar Buoy. 10/20 11:35 PM

Wind

Reading the wind Speed & gusts. Shown in knots (kt). Gusts are short bursts of stronger wind.Direction. The arrow and compass bearing show where the wind comes from.At the beach. Offshore blows toward the water; onshore blows toward land. Sideshore blows along the coast.
3.6 kt gusting 4.1 kt (+0.5)
111° ESE offshore
Model: Open-Meteo Weather

Tide

Reading the tides Predicted, not measured. Dots mark NOAA's predicted high and low tides for the CO-OPS station mapped to this beach, which is a different place from the sand you stand on. The line between the dots is Tarline's own interpolation.Height & time. Feet above NOAA's low-water reference, not the water depth. All times are Pacific.Explore the curve. Tap or focus a dot for its time and height.
Low tide, 2.7 ft @ 2:22 pm, Tue, Oct 20 Pacific 2:22pm High tide, 4.7 ft @ 7:44 pm, Tue, Oct 20 Pacific 7:44pm Low tide, 0.6 ft @ 2:20 am, Wed, Oct 21 Pacific 2:20am High tide, 5.0 ft @ 9:23 am, Wed, Oct 21 Pacific 9:23am Low tide, 2.1 ft @ 3:04 pm, Wed, Oct 21 Pacific 3:04pm High tide, 4.8 ft @ 8:46 pm, Wed, Oct 21 Pacific 8:46pm Low tide, 0.7 ft @ 2:58 am, Thu, Oct 22 Pacific 2:58am High tide, 5.3 ft @ 9:47 am, Thu, Oct 22 Pacific 9:47am 5.3 0.6 Tue 2 PM now Thu 9 AM
Plotted Window, Pacific Time
5.3 ft @ 9:47 am Highest · Thu, Oct 22 0.6 ft @ 2:20 am Lowest · Wed, Oct 21
NOAA 9414290 · predicted tides

As Of 10/21/26 12am Forecast About this forecast time The forecast hour. This is the hour the weather forecast describes, not when it was downloaded.Other readings. Buoy readings and tar reports have their own times on the cards. Tides are predictions.Every source and time. Open Sources & timestamps below for each feed's observation, forecast and retrieval times in full.

Sources & timestamps6 sources

  • Surf estimateTarline multi-buoy spectral model (buoy-spectrum-shadow-3)

    buoys 46026, 46042, 46236, 46214, 46013

    Observed
    when the instrument took this reading
    Calculated
    the recorded time of the local calculation

    Estimated from measured directional spectra, screened by this beach's exposure. The calculation time is when the model last ran. The observation time is the newest spectrum considered; other inputs may be older. This is not observed breaking surf or an independently calibrated accuracy claim.

  • Offshore swellCDIP, Scripps Institution of Oceanography

    San Francisco Bar (46237)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    One instrument's own reading of open water, selected independently of the water temperature station. The observation time is the oldest of the wave fields shown, so it can overstate a single field's age but never understate it. Read through CDIP, Scripps Institution of Oceanography as 142. The fetch timestamp records the start of a successful poll of this field's provider and product, not response completion or the age of the reading.

    Open the CDIP, Scripps Institution of Oceanography source ↗

  • Water temperatureCDIP, Scripps Institution of Oceanography

    San Francisco Bar (46237)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    One instrument's own reading, selected independently of the wave station. Read through CDIP, Scripps Institution of Oceanography as 142. The fetch timestamp records the start of a successful poll of this field's provider and product, not response completion or the age of the reading.

    Open the CDIP, Scripps Institution of Oceanography source ↗

  • WeatherOpen-Meteo Forecast API

    Requested at 37.4636, -122.4459

    Valid for
    the time this forecast or prediction describes, not when it was made
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    Modeled hourly weather for this beach's coordinates, not a reading from an instrument at the beach. The upstream model issue time was not recorded with these data, so issuance is unknown.

    Open the Open-Meteo Forecast API source ↗

  • TideCO-OPS, NOAA

    San Francisco tide (9414290)

    Valid for
    the time this forecast or prediction describes, not when it was made
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    Harmonic high and low predictions on the MLLW datum, not an observed water level. The time shown is the predicted extreme itself.

    Open the CO-OPS, NOAA source ↗

  • Sun and moonSunCalc, calculated locally

    37.4636, -122.4459

    Calculated
    the recorded time of the local calculation

    SunCalc computes sun and moon rise/set times from the Pacific date and beach coordinates, assuming an unobstructed horizon. Moon phase depends on date and time, not the beach location. No feed or beach sensor is involved; terrain and atmospheric conditions affect visible rise/set times.

    Open the SunCalc, calculated locally source ↗

All times are Pacific. An upstream issue time is shown only when recorded. A feed response time is not the provider's model initialization or publication time. Unlisted timestamps were not recorded or do not apply.

Surf OutlookBreaking-face estimates and forecast → Weather OutlookHourly conditions and the week ahead → Tar & OilScores and recent evidence →

Find This Beach

© OpenStreetMap contributors© OpenMapTilesTerrain: AWS Open Data

Half Moon Bay State Beach

Beach forecast · offshore context

Surf Outlook

Estimated breaking-face height at the beach is separate from offshore buoy wave height. These estimates are not validated measurements.

Surf Forecast

Morning and evening estimates, with swell and wind context.

Day Time of day Rating Size Surf Offshore swell Wind Weather Surf basis
WED OCT 21
Wed, 10/21 Morning 6 ft or more 6-7 ft @ 8.5 s · overhead 5-6 ft @ 11.3 s 2.6kt offshore Overcast · 59.5°F Exposure estimate
Wed, 10/21 Evening 4 to under 6 ft 5-6 ft @ 8.1 s · overhead 4-5 ft @ 11.1 s 8.5kt onshore Overcast · 67.1°F Exposure estimate
THU OCT 22
Thu, 10/22 Morning 2 to under 4 ft 3-4 ft @ 7.5 s · chest-to-head 3-4 ft @ 10.8 s 4.1kt offshore Clear · 59.3°F Exposure estimate
Thu, 10/22 Evening 2 to under 4 ft 3-4 ft @ 7.4 s · chest-to-head 3-4 ft @ 10.7 s 5.8kt onshore Partly cloudy · 63.3°F Exposure estimate
FRI OCT 23
Fri, 10/23 Morning 6 ft or more 6-7 ft @ 6.6 s · overhead 5-6 ft @ 8.9 s 2.3kt onshore Overcast · 57.6°F Exposure estimate
Fri, 10/23 Evening 6 ft or more 6-7 ft @ 6.9 s · overhead 5-6 ft @ 9.2 s 8.5kt sideshore Clear · 68.2°F Exposure estimate
SAT OCT 24
Sat, 10/24 Morning 4 to under 6 ft 5-6 ft @ 6.8 s · overhead 4-5 ft @ 9.3 s 2.7kt offshore Clear · 60.3°F Exposure estimate
Sat, 10/24 Evening 4 to under 6 ft 4-5 ft @ 6.7 s · chest-to-head 4-5 ft @ 9.5 s 5.9kt sideshore Clear · 73.1°F Exposure estimate
SUN OCT 25
Sun, 10/25 Morning 2 to under 4 ft 3-4 ft @ 6.3 s · chest-to-head 3-4 ft @ 10.4 s 2.5kt offshore Mostly cloudy · 62.1°F Exposure estimate
Sun, 10/25 Evening 2 to under 4 ft 3-4 ft @ 6 s · chest-to-head 3-4 ft @ 10.8 s 3.1kt onshore Clear · 76.3°F Exposure estimate
MON OCT 26
Mon, 10/26 Morning Under 1 ft 0-1 ft @ – s · ankle-high 2-3 ft @ 12.2 s 2.4kt offshore Partly cloudy · 61.4°F Exposure estimate
Mon, 10/26 Evening 2 to under 4 ft 2-3 ft @ 11 s · waist-high 3-4 ft @ 12.3 s 5kt onshore Overcast · 73.5°F Exposure estimate
TUE OCT 27
Tue, 10/27 Morning 2 to under 4 ft 2-3 ft @ 8.7 s · waist-high 3-4 ft @ 12.0 s 2.3kt sideshore Partly cloudy · 60.1°F Exposure estimate
Tue, 10/27 Evening 2 to under 4 ft 2-3 ft @ 8 s · waist-high 3-4 ft @ 11.8 s 6.6kt onshore Mostly cloudy · 71.6°F Exposure estimate
WED OCT 28
Wed, 10/28 Morning 2 to under 4 ft 3-4 ft @ 13 s · chest-to-head 3-4 ft @ 11.9 s 1.7kt offshore Overcast · 60°F Exposure estimate
Wed, 10/28 Evening 2 to under 4 ft 3-4 ft @ 12.5 s · chest-to-head 3-4 ft @ 12.1 s 4.1kt onshore Overcast · 72.6°F Exposure estimate
THU OCT 29
Thu, 10/29 Morning 4 to under 6 ft 4-5 ft @ 11.3 s · chest-to-head 3-4 ft @ 11.7 s 1.2kt sideshore Overcast · 63.4°F Exposure estimate
Thu, 10/29 Evening 4 to under 6 ft 4-5 ft @ 11 s · chest-to-head 3-4 ft @ 11.6 s 3.6kt onshore Overcast · 69.4°F Exposure estimate
Surf is an unvalidated breaking-wave estimate; offshore wave height is not surf height. Each height carries the period of its own source: the Surf period comes from the sample the breaking estimate was computed from, the Offshore swell period from the wave model's own row. A period shown as – is one the source did not supply. No calibrated accuracy percentage is available. Wind is the atmospheric weather forecast, not wind-wave direction.
Forecast sources & timestamps3 sources

  • Surf estimateTarline exposure window model on Open-Meteo Marine

    request coordinates 37.46,-122.45

    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    Computed here from the modeled offshore swell and wind sea for this beach's hour, screened by the beach's exposure windows. Modeled throughout, with no measurement at the beach. The upstream model issue time was not recorded with these data, so issuance is unknown. Rows in this table are valid for different forecast hours, so no single valid time is shown here; read the row's own Day and Time of day.

    Open the Tarline exposure window model on Open-Meteo Marine source ↗

  • Wave forecastOpen-Meteo Marine API

    request coordinates 37.46,-122.45

    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    Modeled open-water wave forecast requested at rounded coordinates, not a beach measurement. These coordinates identify Tarline's request, not necessarily the provider's returned model cell. The upstream model issue time was not recorded with these data, so issuance is unknown. Rows in this table are valid for different forecast hours, so no single valid time is shown here; read the row's own Day and Time of day.

    Open the Open-Meteo Marine API source ↗

  • WeatherOpen-Meteo Forecast API

    Requested at 37.4636, -122.4459

    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    Modeled hourly weather for this beach's coordinates, not a reading from an instrument at the beach. The upstream model issue time was not recorded with these data, so issuance is unknown. Rows in this table are valid for different forecast hours, so no single valid time is shown here; read the row's own Day and Time of day.

    Open the Open-Meteo Forecast API source ↗

All times are Pacific. An upstream issue time is shown only when recorded. A feed response time is not the provider's model initialization or publication time. Unlisted timestamps were not recorded or do not apply.

Breaking surf and offshore swellOffshore buoy: San Francisco · NDBC 46026
Offshore buoy, latest measurementno observed readingNext estimated breaking face6-7 ft @ 8.5 s · Wed, Oct 21, 9:00 AM
Estimated Breaking Face, Not Offshore Wave Height

No exact beach-reported face heights in the latest reports. Hovering an estimated-face point states the period of the sample that height was modeled from. The report form does not collect a wave period, so a crowd report's height says the period was not reported rather than borrowing the forecast's.

NESW
Swell from
272° W forecast
Offshore height
unknown observed and forecast span 2.9 to 5.8 ft
Dominant period
unknown
Beach faces
260° W dashed on compass
Offshore Wave Height, Observed And Forecast
Dominant Period, Observed And Forecast

Solid left of NOW: buoy measurements. Dashed right of NOW: wave-model forecast. Offshore significant wave height, not breaking face.

Swell Direction, Every 6h
Arrows point the way the swell is heading; the reading is the bearing it comes from, 0° = north. No direction reported in 43 of 57 samples.

Community evidence

Tar & Oil Conditions

Scores summarize recent beach reports, not a water-quality test. No reports means unknown, not clean.

Tar/Oil Score, 0 To 10 (10 = Clean)
7 DAYSHow scoring works →
no data
No tar/oil scores on record for the last 7 days.

Nothing to plot: no field reports have been scored for this beach in this window. An empty 0-10 lane would look the same as a clean beach, so none is drawn.

Read the individual tar/oil observations behind these scores, or use Research to compare and export historical records.

What people actually saw

Tar & Oil Observations

Up to 20 recent reports at this beach. These are crowd reports, not live instruments.

No reports yet for this beach.

Looking further back? Explore and export historical observations in Research →

Today · the week ahead

Weather Outlook

Hourly temperature, wind and sky forecasts, with daylight and lunar context.

Weather
57°Fovercast4 ktESEgust 4 ktUV 0Humidity 82%1010 mbSunrise 7:23 AMSunset 6:24 PM
Today, Hour By Hour
Sky By Hour
Wind Direction, Hourly
Arrows point the way the wind is heading; the reading is the bearing it comes from, 0° = north.
TodayUV 4 ModerateSunrise 7:23 AMSunset 6:24 PMMoonrise 4:04 PMMoonset 2:34 AM Waxing Gibbousapprox. next full moon Oct 27
Weather sources & timestamps3 sources

  • WeatherOpen-Meteo Forecast API

    Requested at 37.4636, -122.4459

    Valid for
    the time this forecast or prediction describes, not when it was made
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    Modeled hourly weather for this beach's coordinates, not a reading from an instrument at the beach. The upstream model issue time was not recorded with these data, so issuance is unknown.

    Open the Open-Meteo Forecast API source ↗

  • Water temperatureNDBC, NOAA

    San Francisco Bar (46237)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    One instrument's own reading, selected independently of the wave station. The fetch timestamp records the start of a successful poll of this field's provider and product, not response completion or the age of the reading.

    Open the NDBC, NOAA source ↗

  • Sun and moonSunCalc, calculated locally

    37.4636, -122.4459

    Calculated
    the recorded time of the local calculation

    SunCalc computes sun and moon rise/set times from the Pacific date and beach coordinates, assuming an unobstructed horizon. Moon phase depends on date and time, not the beach location. No feed or beach sensor is involved; terrain and atmospheric conditions affect visible rise/set times. Sunrise, sunset, moonrise, moonset and phase are calculated per Pacific calendar day for 7 days from this one.

    Open the SunCalc, calculated locally source ↗

All times are Pacific. An upstream issue time is shown only when recorded. A feed response time is not the provider's model initialization or publication time. Unlisted timestamps were not recorded or do not apply.

Water reference: San Francisco Bar · 46237 . Latest prior accepted buoy measurement at each hour, at most three hours old—not a shoreline thermometer or a water-temperature forecast.

Air and wind: Open-Meteo forecasts, not beach instruments. Coastal terrain and the marine layer can differ from the model grid. Compare the official NWS point forecast →

Instrument observations

Nearby Buoys

Nearby stations and configured reference sites with current usable readings. Measurements describe conditions at the instrument, not breaking surf on this beach. The map includes the wider station catalog.

San Francisco

NDBC 46026
Reporting

Moored buoy · 47 km from this beach · 53 m depth

last observation Oct 20, 2026, 11:20 PM

Significant wave height
5.9 ft observed Oct 20, 2026, 11:20 PM · NDBC 46026
Dominant period
14.0 s observed Oct 20, 2026, 11:20 PM · NDBC 46026
Average period
8.6 s observed Oct 20, 2026, 11:20 PM · NDBC 46026
Mean wave direction
W 275° observed Oct 20, 2026, 11:20 PM · NDBC 46026
Water temperature
60.1 °F observed Oct 20, 2026, 11:10 PM · NDBC 46026
Wind
5.8 kt observed Oct 20, 2026, 11:20 PM · NDBC 46026
Gust
9.7 kt observed Oct 20, 2026, 11:20 PM · NDBC 46026
Wind direction
NNW 330° observed Oct 20, 2026, 11:20 PM · NDBC 46026
Air temperature
– °F not in the latest transmission

Significant wave height is the total measured sea state at this mooring, not the height breaking at this beach. The modeled breaking estimate is on the Surf tab.

No accepted directional spectrum from the past 90 minutes is available, so no partitions are shown.

Station sources & timestamps3 sources

  • Latest station reportNDBC, NOAA

    San Francisco (46026)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    Latest report received from this physical station; individual fields can have older observation times. This is the recorded start of the most recent successful live poll across this station's products, not response completion or proof that every field refreshed.

    Open the NDBC, NOAA source ↗

  • Offshore swellNDBC, NOAA

    San Francisco (46026)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    One instrument's own reading of open water, selected independently of the water temperature station. The observation time is the oldest of the wave fields shown, so it can overstate a single field's age but never understate it. The fetch timestamp records the start of a successful poll of this field's provider and product, not response completion or the age of the reading.

    Open the NDBC, NOAA source ↗

  • Water temperatureNDBC, NOAA

    San Francisco (46026)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    One instrument's own reading, selected independently of the wave station. The fetch timestamp records the start of a successful poll of this field's provider and product, not response completion or the age of the reading.

    Open the NDBC, NOAA source ↗

All times are Pacific. An upstream issue time is shown only when recorded. A feed response time is not the provider's model initialization or publication time. Unlisted timestamps were not recorded or do not apply.

Station history → View on NDBC →

San Francisco Bar

NDBC 46237 · CDIP 142
Reporting

Moored buoy · 39.6 km from this beach · 17 m depth

last observation Oct 20, 2026, 11:35 PM

Significant wave height
5.3 ft observed Oct 20, 2026, 11:00 PM · CDIP 142
Dominant period
15.4 s observed Oct 20, 2026, 11:00 PM · CDIP 142
Average period
10.2 s observed Oct 20, 2026, 11:00 PM · CDIP 142
Mean wave direction
WSW 237° observed Oct 20, 2026, 11:00 PM · CDIP 142
Water temperature
60.6 °F observed Oct 20, 2026, 11:35 PM · CDIP 142
Wind
– kt not in the latest transmission
Gust
– kt not in the latest transmission
Wind direction
– not in the latest transmission
Air temperature
61.5 °F observed Oct 20, 2026, 11:30 PM · NDBC 46237

Significant wave height is the total measured sea state at this mooring, not the height breaking at this beach. The modeled breaking estimate is on the Surf tab.

Partitions, computed here Where these partitions come from Tarline splits this station's own directional wave spectrum into a swell part and a wind sea part. The split is this site's computation, not a provider product, and it is deliberately conservative: two parts, not a list of named swell trains. Variances add and heights do not, so the combined figure below is 4 times the square root of the total variance rather than a sum of the partition heights.
  • Swell 5.4 ft @ 15.4s energy period 12.0 s from W 265°

Partitions combine to 5.4 ft significant height , against 5.3 ft measured at the station. Spectrum sampled Oct 20, 11:00 PM.

Station sources & timestamps4 sources

  • Latest station reportNDBC, NOAA

    San Francisco Bar (46237)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    Latest report received from this physical station; individual fields can have older observation times. This is the recorded start of the most recent successful live poll across this station's products, not response completion or proof that every field refreshed.

    Open the NDBC, NOAA source ↗

  • Offshore swellCDIP, Scripps Institution of Oceanography

    San Francisco Bar (46237)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    One instrument's own reading of open water, selected independently of the water temperature station. The observation time is the oldest of the wave fields shown, so it can overstate a single field's age but never understate it. Read through CDIP, Scripps Institution of Oceanography as 142. The fetch timestamp records the start of a successful poll of this field's provider and product, not response completion or the age of the reading.

    Open the CDIP, Scripps Institution of Oceanography source ↗

  • Water temperatureCDIP, Scripps Institution of Oceanography

    San Francisco Bar (46237)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    One instrument's own reading, selected independently of the wave station. Read through CDIP, Scripps Institution of Oceanography as 142. The fetch timestamp records the start of a successful poll of this field's provider and product, not response completion or the age of the reading.

    Open the CDIP, Scripps Institution of Oceanography source ↗

  • Directional wave spectrumCDIP, Scripps Institution of Oceanography

    San Francisco Bar (46237)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    Wave systems are partitioned from this measured spectrum. The fetch timestamp records the start of a successful poll of this provider's spectral product, not response completion. Spectra are retained for 72 hours.

    Open the CDIP, Scripps Institution of Oceanography source ↗

All times are Pacific. An upstream issue time is shown only when recorded. A feed response time is not the provider's model initialization or publication time. Unlisted timestamps were not recorded or do not apply.

Station history → View on NDBC →

Half Moon Bay

NDBC 46012
Reporting

Uncrewed surface vehicle · 40.2 km from this beach · 209 m depth

last observation Oct 20, 2026, 11:00 PM

Significant wave height
6.2 ft observed Oct 20, 2026, 11:00 PM · NDBC 46012
Dominant period
12.0 s observed Oct 20, 2026, 11:00 PM · NDBC 46012
Average period
– s not in the latest transmission
Mean wave direction
– not in the latest transmission
Water temperature
65.3 °F observed Oct 20, 2026, 11:00 PM · NDBC 46012
Wind
9.7 kt observed Oct 20, 2026, 11:00 PM · NDBC 46012
Gust
11.7 kt observed Oct 20, 2026, 11:00 PM · NDBC 46012
Wind direction
NW 320° observed Oct 20, 2026, 11:00 PM · NDBC 46012
Air temperature
62.1 °F observed Oct 20, 2026, 11:00 PM · NDBC 46012

Significant wave height is the total measured sea state at this mooring, not the height breaking at this beach. The modeled breaking estimate is on the Surf tab.

This station publishes no directional spectrum, so no partitions can be computed.

Station sources & timestamps3 sources

  • Latest station reportNDBC, NOAA

    Half Moon Bay (46012)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    Latest report received from this physical station; individual fields can have older observation times. This is the recorded start of the most recent successful live poll across this station's products, not response completion or proof that every field refreshed.

    Open the NDBC, NOAA source ↗

  • Offshore swellNDBC, NOAA

    Half Moon Bay (46012)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    One instrument's own reading of open water, selected independently of the water temperature station. The observation time is the oldest of the wave fields shown, so it can overstate a single field's age but never understate it. The fetch timestamp records the start of a successful poll of this field's provider and product, not response completion or the age of the reading.

    Open the NDBC, NOAA source ↗

  • Water temperatureNDBC, NOAA

    Half Moon Bay (46012)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    One instrument's own reading, selected independently of the wave station. The fetch timestamp records the start of a successful poll of this field's provider and product, not response completion or the age of the reading.

    Open the NDBC, NOAA source ↗

All times are Pacific. An upstream issue time is shown only when recorded. A feed response time is not the provider's model initialization or publication time. Unlisted timestamps were not recorded or do not apply.

Station history → View on NDBC →

Monterey

NDBC 46042
Reporting

Moored buoy · 75.3 km from this beach · 1710 m depth

last observation Oct 20, 2026, 11:30 PM

Significant wave height
9.5 ft observed Oct 20, 2026, 11:20 PM · NDBC 46042
Dominant period
13.0 s observed Oct 20, 2026, 11:20 PM · NDBC 46042
Average period
10.8 s observed Oct 20, 2026, 11:20 PM · NDBC 46042
Mean wave direction
WNW 302° observed Oct 20, 2026, 11:20 PM · NDBC 46042
Water temperature
65.7 °F observed Oct 20, 2026, 11:30 PM · NDBC 46042
Wind
5.8 kt observed Oct 20, 2026, 11:30 PM · NDBC 46042
Gust
9.7 kt observed Oct 20, 2026, 11:30 PM · NDBC 46042
Wind direction
S 170° observed Oct 20, 2026, 11:30 PM · NDBC 46042
Air temperature
62.8 °F observed Oct 20, 2026, 11:30 PM · NDBC 46042

Significant wave height is the total measured sea state at this mooring, not the height breaking at this beach. The modeled breaking estimate is on the Surf tab.

No accepted directional spectrum from the past 90 minutes is available, so no partitions are shown.

Station sources & timestamps3 sources

  • Latest station reportNDBC, NOAA

    Monterey (46042)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    Latest report received from this physical station; individual fields can have older observation times. This is the recorded start of the most recent successful live poll across this station's products, not response completion or proof that every field refreshed.

    Open the NDBC, NOAA source ↗

  • Offshore swellNDBC, NOAA

    Monterey (46042)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    One instrument's own reading of open water, selected independently of the water temperature station. The observation time is the oldest of the wave fields shown, so it can overstate a single field's age but never understate it. The fetch timestamp records the start of a successful poll of this field's provider and product, not response completion or the age of the reading.

    Open the NDBC, NOAA source ↗

  • Water temperatureNDBC, NOAA

    Monterey (46042)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    One instrument's own reading, selected independently of the wave station. The fetch timestamp records the start of a successful poll of this field's provider and product, not response completion or the age of the reading.

    Open the NDBC, NOAA source ↗

All times are Pacific. An upstream issue time is shown only when recorded. A feed response time is not the provider's model initialization or publication time. Unlisted timestamps were not recorded or do not apply.

Station history → View on NDBC →

MBM1

NDBC 46092
Reporting

Moored buoy · 87.4 km from this beach · 1000 m depth

last observation Oct 20, 2026, 11:08 PM

Significant wave height
– ft not measured at this station
Dominant period
– s not measured at this station
Average period
– s not measured at this station
Mean wave direction
– not measured at this station
Water temperature
– °F not in the latest transmission
Wind
5.8 kt observed Oct 20, 2026, 11:08 PM · NDBC 46092
Gust
– kt not in the latest transmission
Wind direction
SSE 160° observed Oct 20, 2026, 11:08 PM · NDBC 46092
Air temperature
– °F not in the latest transmission

This platform reports weather only. The catalog records no wave sensor here, so its wave rows are blank by design rather than by outage.

This station publishes no directional spectrum, so no partitions can be computed.

Station sources & timestamps3 sources

  • Latest station reportNDBC, NOAA

    MBM1 (46092)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    Latest report received from this physical station; individual fields can have older observation times. This is the recorded start of the most recent successful live poll across this station's products, not response completion or proof that every field refreshed.

    Open the NDBC, NOAA source ↗

  • Offshore swellNDBC, NOAA

    MBM1 (46092)

    No source time available. This entry carries no observation, valid, issue, calculation or retrieval time, so its age is unknown.

    One instrument's own reading of open water, selected independently of the water temperature station. The observation time is the oldest of the wave fields shown, so it can overstate a single field's age but never understate it. No accepted reading from this station is on record for the window shown. A successful fetch time for this field's provider and product is unavailable.

    Open the NDBC, NOAA source ↗

  • Water temperatureNDBC, NOAA

    MBM1 (46092)

    No source time available. This entry carries no observation, valid, issue, calculation or retrieval time, so its age is unknown.

    One instrument's own reading, selected independently of the wave station. No accepted reading from this station is on record for the window shown. A successful fetch time for this field's provider and product is unavailable.

    Open the NDBC, NOAA source ↗

All times are Pacific. An upstream issue time is shown only when recorded. A feed response time is not the provider's model initialization or publication time. Unlisted timestamps were not recorded or do not apply.

Station history → View on NDBC →

Monterey Canyon Outer

NDBC 46236 · CDIP 156
Reporting

Moored buoy · 89.8 km from this beach · 133 m depth

last observation Oct 20, 2026, 11:35 PM

Significant wave height
5.8 ft observed Oct 20, 2026, 11:00 PM · CDIP 156
Dominant period
11.8 s observed Oct 20, 2026, 11:00 PM · CDIP 156
Average period
10.3 s observed Oct 20, 2026, 11:00 PM · CDIP 156
Mean wave direction
WNW 299° observed Oct 20, 2026, 11:00 PM · CDIP 156
Water temperature
65.8 °F observed Oct 20, 2026, 11:35 PM · CDIP 156
Wind
– kt not in the latest transmission
Gust
– kt not in the latest transmission
Wind direction
– not in the latest transmission
Air temperature
62.8 °F observed Oct 20, 2026, 11:30 PM · NDBC 46236

Significant wave height is the total measured sea state at this mooring, not the height breaking at this beach. The modeled breaking estimate is on the Surf tab.

Partitions, computed here Where these partitions come from Tarline splits this station's own directional wave spectrum into a swell part and a wind sea part. The split is this site's computation, not a provider product, and it is deliberately conservative: two parts, not a list of named swell trains. Variances add and heights do not, so the combined figure below is 4 times the square root of the total variance rather than a sum of the partition heights.
  • Swell 5.8 ft @ 11.8s energy period 11.4 s from WNW 291°

Partitions combine to 5.8 ft significant height , against 5.8 ft measured at the station. Spectrum sampled Oct 20, 11:00 PM.

Station sources & timestamps4 sources

  • Latest station reportNDBC, NOAA

    Monterey Canyon Outer (46236)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    Latest report received from this physical station; individual fields can have older observation times. This is the recorded start of the most recent successful live poll across this station's products, not response completion or proof that every field refreshed.

    Open the NDBC, NOAA source ↗

  • Offshore swellCDIP, Scripps Institution of Oceanography

    Monterey Canyon Outer (46236)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    One instrument's own reading of open water, selected independently of the water temperature station. The observation time is the oldest of the wave fields shown, so it can overstate a single field's age but never understate it. Read through CDIP, Scripps Institution of Oceanography as 156. The fetch timestamp records the start of a successful poll of this field's provider and product, not response completion or the age of the reading.

    Open the CDIP, Scripps Institution of Oceanography source ↗

  • Water temperatureCDIP, Scripps Institution of Oceanography

    Monterey Canyon Outer (46236)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    One instrument's own reading, selected independently of the wave station. Read through CDIP, Scripps Institution of Oceanography as 156. The fetch timestamp records the start of a successful poll of this field's provider and product, not response completion or the age of the reading.

    Open the CDIP, Scripps Institution of Oceanography source ↗

  • Directional wave spectrumCDIP, Scripps Institution of Oceanography

    Monterey Canyon Outer (46236)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    Wave systems are partitioned from this measured spectrum. The fetch timestamp records the start of a successful poll of this provider's spectral product, not response completion. Spectra are retained for 72 hours.

    Open the CDIP, Scripps Institution of Oceanography source ↗

All times are Pacific. An upstream issue time is shown only when recorded. A feed response time is not the provider's model initialization or publication time. Unlisted timestamps were not recorded or do not apply.

Station history → View on NDBC →

Point Reyes

NDBC 46214 · CDIP 029
Reporting

Moored buoy · 104.2 km from this beach · 600 m depth

last observation Oct 20, 2026, 11:58 PM

Significant wave height
9.8 ft observed Oct 20, 2026, 11:30 PM · CDIP 029
Dominant period
12.5 s observed Oct 20, 2026, 11:30 PM · CDIP 029
Average period
10.1 s observed Oct 20, 2026, 11:30 PM · CDIP 029
Mean wave direction
WNW 297° observed Oct 20, 2026, 11:30 PM · CDIP 029
Water temperature
61.3 °F observed Oct 20, 2026, 11:58 PM · CDIP 029
Wind
– kt not in the latest transmission
Gust
– kt not in the latest transmission
Wind direction
– not in the latest transmission
Air temperature
– °F not in the latest transmission

Significant wave height is the total measured sea state at this mooring, not the height breaking at this beach. The modeled breaking estimate is on the Surf tab.

Partitions, computed here Where these partitions come from Tarline splits this station's own directional wave spectrum into a swell part and a wind sea part. The split is this site's computation, not a provider product, and it is deliberately conservative: two parts, not a list of named swell trains. Variances add and heights do not, so the combined figure below is 4 times the square root of the total variance rather than a sum of the partition heights.
  • Swell 9.8 ft @ 12.5s energy period 11.3 s from WNW 290°

Partitions combine to 9.8 ft significant height , against 9.8 ft measured at the station. Spectrum sampled Oct 20, 11:30 PM.

Station sources & timestamps4 sources

  • Latest station reportNDBC, NOAA

    Point Reyes (46214)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    Latest report received from this physical station; individual fields can have older observation times. This is the recorded start of the most recent successful live poll across this station's products, not response completion or proof that every field refreshed.

    Open the NDBC, NOAA source ↗

  • Offshore swellCDIP, Scripps Institution of Oceanography

    Point Reyes (46214)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    One instrument's own reading of open water, selected independently of the water temperature station. The observation time is the oldest of the wave fields shown, so it can overstate a single field's age but never understate it. Read through CDIP, Scripps Institution of Oceanography as 029. The fetch timestamp records the start of a successful poll of this field's provider and product, not response completion or the age of the reading.

    Open the CDIP, Scripps Institution of Oceanography source ↗

  • Water temperatureCDIP, Scripps Institution of Oceanography

    Point Reyes (46214)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    One instrument's own reading, selected independently of the wave station. Read through CDIP, Scripps Institution of Oceanography as 029. The fetch timestamp records the start of a successful poll of this field's provider and product, not response completion or the age of the reading.

    Open the CDIP, Scripps Institution of Oceanography source ↗

  • Directional wave spectrumCDIP, Scripps Institution of Oceanography

    Point Reyes (46214)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    Wave systems are partitioned from this measured spectrum. The fetch timestamp records the start of a successful poll of this provider's spectral product, not response completion. Spectra are retained for 72 hours.

    Open the CDIP, Scripps Institution of Oceanography source ↗

All times are Pacific. An upstream issue time is shown only when recorded. A feed response time is not the provider's model initialization or publication time. Unlisted timestamps were not recorded or do not apply.

Station history → View on NDBC →

Bodega Bay

NDBC 46013
Reporting

Moored buoy · 114.9 km from this beach · 128 m depth

last observation Oct 20, 2026, 11:10 PM

Significant wave height
6.2 ft observed Oct 20, 2026, 11:10 PM · NDBC 46013
Dominant period
12.0 s observed Oct 20, 2026, 10:50 PM · NDBC 46013
Average period
8.4 s observed Oct 20, 2026, 11:10 PM · NDBC 46013
Mean wave direction
WNW 291° observed Oct 20, 2026, 11:10 PM · NDBC 46013
Water temperature
– °F not in the latest transmission
Wind
3.9 kt observed Oct 20, 2026, 11:10 PM · NDBC 46013
Gust
5.8 kt observed Oct 20, 2026, 11:10 PM · NDBC 46013
Wind direction
NNW 340° observed Oct 20, 2026, 11:10 PM · NDBC 46013
Air temperature
59.7 °F observed Oct 20, 2026, 11:10 PM · NDBC 46013

Significant wave height is the total measured sea state at this mooring, not the height breaking at this beach. The modeled breaking estimate is on the Surf tab.

No accepted directional spectrum from the past 90 minutes is available, so no partitions are shown.

Station sources & timestamps3 sources

  • Latest station reportNDBC, NOAA

    Bodega Bay (46013)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    Latest report received from this physical station; individual fields can have older observation times. This is the recorded start of the most recent successful live poll across this station's products, not response completion or proof that every field refreshed.

    Open the NDBC, NOAA source ↗

  • Offshore swellNDBC, NOAA

    Bodega Bay (46013)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    One instrument's own reading of open water, selected independently of the water temperature station. The observation time is the oldest of the wave fields shown, so it can overstate a single field's age but never understate it. The fetch timestamp records the start of a successful poll of this field's provider and product, not response completion or the age of the reading.

    Open the NDBC, NOAA source ↗

  • Water temperatureNDBC, NOAA

    Bodega Bay (46013)

    No source time available. This entry carries no observation, valid, issue, calculation or retrieval time, so its age is unknown.

    One instrument's own reading, selected independently of the wave station. No accepted reading from this station is on record for the window shown. A successful fetch time for this field's provider and product is unavailable.

    Open the NDBC, NOAA source ↗

All times are Pacific. An upstream issue time is shown only when recorded. A feed response time is not the provider's model initialization or publication time. Unlisted timestamps were not recorded or do not apply.

Station history → View on NDBC →

Point Sur

NDBC 46239 · CDIP 157
Reporting

Moored buoy · 128.3 km from this beach · 366 m depth

last observation Oct 20, 2026, 11:40 PM

Significant wave height
9.7 ft observed Oct 20, 2026, 11:00 PM · CDIP 157
Dominant period
13.3 s observed Oct 20, 2026, 11:00 PM · CDIP 157
Average period
11.2 s observed Oct 20, 2026, 11:00 PM · CDIP 157
Mean wave direction
WNW 302° observed Oct 20, 2026, 11:00 PM · CDIP 157
Water temperature
65.3 °F observed Oct 20, 2026, 11:40 PM · CDIP 157
Wind
– kt not in the latest transmission
Gust
– kt not in the latest transmission
Wind direction
– not in the latest transmission
Air temperature
62.2 °F observed Oct 20, 2026, 11:00 PM · NDBC 46239

Significant wave height is the total measured sea state at this mooring, not the height breaking at this beach. The modeled breaking estimate is on the Surf tab.

Partitions, computed here Where these partitions come from Tarline splits this station's own directional wave spectrum into a swell part and a wind sea part. The split is this site's computation, not a provider product, and it is deliberately conservative: two parts, not a list of named swell trains. Variances add and heights do not, so the combined figure below is 4 times the square root of the total variance rather than a sum of the partition heights.
  • Swell 9.7 ft @ 13.3s energy period 12.0 s from NW 306°

Partitions combine to 9.7 ft significant height , against 9.7 ft measured at the station. Spectrum sampled Oct 20, 11:00 PM.

Station sources & timestamps4 sources

  • Latest station reportNDBC, NOAA

    Point Sur (46239)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    Latest report received from this physical station; individual fields can have older observation times. This is the recorded start of the most recent successful live poll across this station's products, not response completion or proof that every field refreshed.

    Open the NDBC, NOAA source ↗

  • Offshore swellCDIP, Scripps Institution of Oceanography

    Point Sur (46239)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    One instrument's own reading of open water, selected independently of the water temperature station. The observation time is the oldest of the wave fields shown, so it can overstate a single field's age but never understate it. Read through CDIP, Scripps Institution of Oceanography as 157. The fetch timestamp records the start of a successful poll of this field's provider and product, not response completion or the age of the reading.

    Open the CDIP, Scripps Institution of Oceanography source ↗

  • Water temperatureCDIP, Scripps Institution of Oceanography

    Point Sur (46239)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    One instrument's own reading, selected independently of the wave station. Read through CDIP, Scripps Institution of Oceanography as 157. The fetch timestamp records the start of a successful poll of this field's provider and product, not response completion or the age of the reading.

    Open the CDIP, Scripps Institution of Oceanography source ↗

  • Directional wave spectrumCDIP, Scripps Institution of Oceanography

    Point Sur (46239)

    Observed
    when the instrument took this reading
    Successful fetch
    recorded time for the last accepted fetch; not proof the value changed (see source timing details below)

    Wave systems are partitioned from this measured spectrum. The fetch timestamp records the start of a successful poll of this provider's spectral product, not response completion. Spectra are retained for 72 hours.

    Open the CDIP, Scripps Institution of Oceanography source ↗

All times are Pacific. An upstream issue time is shown only when recorded. A feed response time is not the provider's model initialization or publication time. Unlisted timestamps were not recorded or do not apply.

Station history → View on NDBC →
Primary model

Multi-buoy surf model, this beach's estimate

What the multi-buoy model is The surf figure on this page is computed from several buoys' directional wave spectra, with the land between each buoy and this beach screened out. It is a model ESTIMATE and it has not been calibrated against measured breaking surf, so no accuracy figure is claimed for it. The baseline beside it is the height the older exposure/CDIP tier produced at the same run, kept so the change stays auditable. A difference between the two is two models disagreeing, not either one being right.
Multi-buoy model, this beach's estimate 9.1 ft
Legacy baseline, same run 7.6 ft window-model
Difference from the baseline +1.5 ft this beach's estimate minus the older tier at that run

Stations used: San Francisco, Monterey, Monterey Canyon Outer, Point Reyes, Bodega Bay

  • exposure: curated arcs at every frequency; bins at or above 0.09 Hz are UNSCREENED (no coastline geometry supplied)
  • 46237: nearshore-transformed -- nearshore at this period (h/L0 0.07): a transformed nearshore record, not offshore forcing

Computed Oct 21, 12:03 AM · buoy-spectrum-shadow-3

Panel assembled Wed, Oct 21, 2026, 12:07 AM PDT. That is not how fresh any station reading is.

Public incident records

Nearby Incident Reports

Records within 25 km. Proximity alone does not establish the source of tar at this beach.

Select a record to read in full.

Browse incident archive

Last 90 days 0

No incident reports within 25 km in the last 90 days.

Show older records Hide older records 18 More than 90 days ago
  1. NRC raw About NRC reports Unverified initial reports. NRC publishes caller reports, not findings validated by a response agency. The feed does not provide a verified/unverified status for individual records. NRC's explanation ↗ Potential Release Report: Caller states that a 20' recreational fishing boat ran aground on a reef in half moon bay, resulting in local lifeguards rescuing all individuals on board. The vessel has the potential to release an unknown amount of gasoline/motor oil. No fatalities; injuries unknown. /// potential release /// 5.6 km away

    No public source page available.

  2. NRC raw About NRC reports Unverified initial reports. NRC publishes caller reports, not findings validated by a response agency. The feed does not provide a verified/unverified status for individual records. NRC's explanation ↗ The caller discovered a release of motor oil into san francisco bay from an abandoned sailboat that ran aground. Caller states the cause of the vessel running aground is unknown. Caller states there was no crew on board of the vessel. 23.8 km away

    No public source page available.

  3. NRC raw About NRC reports Unverified initial reports. NRC publishes caller reports, not findings validated by a response agency. The feed does not provide a verified/unverified status for individual records. NRC's explanation ↗ Potential Release Report: Caller reporting a boat capsized in the pacific ocean with two individuals on board. The local harbor assisted the boaters, and did not see any sheen. The boat had an unknown amount of gasoline on board. 6.8 km away

    No public source page available.

  4. IncidentNews Pleasure Craft Adrift and Sinking, Southwest of Half Moon Bay, CA 11.4 km away

    On 04-FEB-2023, USCG Sector San Francisco contacted their NOAA SSC about the 70' yacht SERENITY believed to be carrying 600-700 gallons fuel on board when it began taking on water. People were safely removed from the vessel during a USCG search & rescue (SAR) operation. Sector SF IMD requested a vessel drift estimate.

    Original record
  5. IncidentNews Whale carcass; Pacifica, CA 15.9 km away

    In the evening of 21-MAY-2021, NMFS Stranding Coordinator staff contacted the NOAA SSC for CA regarding a 40’ whale carcass at Linda Mar Beach, Pacifica, CA. The carcass is likely to be towed offshore sometime early on 23-MAY-2021. NMFS requested a carcass drift estimate to aid in determining how far offshore to tow the carcasses so they do not re-beach in the upcoming days.

    Original record
  6. IncidentNews S/V FREEDOM adrift; South of Half Moon Bay, CA 21.1 km away

    Shortly before midnight on 19-MAY-2020, USCG Sector San Francisco received a call from the 30’ wooden S/V FREEDOM that she was beset by weather and adrift south of Pillar Point Harbor, CA. All persons on board were rescued without incident and no pollution threat is anticipated. The subsequent morning, the Monterey Bay & Greater Farallones National Marine Sanctuaries' staff contacted the NOAA SSC for CA to request a drift estimate for the un-manned vessel to assist in potential recovery/removal by the vessel owner.

    Original record
  7. IncidentNews Gray whale carcass; Pacifica, CA 16 km away

    On 15-MAY-2019, NMFS Stranding Network staff contacted the NOAA SSC regarding a 40’ gray whale carcass that had washed ashore near Pacifica, CA the day before. No field necropsy is anticipated, so the carcass may be towed offshore on 15 or 16-MAY. NMFS requested a carcass drift estimate to aid in determining how far offshore to tow the carcass so it does not re-beach in the upcoming days.

    Original record
  8. IncidentNews Gray whale carcass; Pacifica, CA 94044, USA 21 km away

    In the evening of 16-APR-2019, NMFS Stranding Network staff contacted their NOAA SSC regarding a gray whale carcass that had washed ashore near Pacifica, CA. A field necropsy is scheduled for 17-APR-2019, after which the carcass would be towed offshore. NMFS requested a carcass drift estimate to aid in determining how far offshore to tow the carcass so it does not re-beach in the upcoming days.

    Original record
  9. IncidentNews Tug CALEB; Half Moon Bay, CA 94019, USA 4.7 km away

    On 25-OCT-2017, the USCG Sector San Francisco contacted their NOAA SSC to request trajectory support for an "old" grounded tug boat in Half Moon Bay, CA. The 60-foot long Tug CALEB had been at anchor in Half Moon Bay but dragged anchor during recent heavy wave conditions. The USCG estimates there may be 3,000-5,000 gallons of mixed oily liquids on board. As USCG develops a plan to address the vessel, they have requested oil fate & transport support to assess the potential risks to local resources in the event that a spill occurs in the coming weeks.

    Original record
  10. IncidentNews Whale carcass; Pillar Point Harbor, CA 5.4 km away

    On May 23, 2014, the NMFS Stranding Coordinator contacted ERD to request a drift estimate for a 22 foot Humpback whale (Megaptera novaeangliae) carcass that had washed up at the entrance to Pillar Point Harbor, CA.

    Original record
  11. IncidentNews Tarball event; Montara, CA 11.7 km away

    On February 10, 2014, the Gulf of the Farallones National Marine Sanctuary notified the NOAA SSC of an unusual tarball event on Montara State Beach and in Half Moon Bay but it is unknown whether the event affected a larger stretch of coastline. No oiled wildlife were seen. Hotline was created to capture and share event information.

    Original record
  12. IncidentNews M/V Champion Express adrift; Off Half Moon Bay, CA 22.1 km away

    In the evening of 28-Feb-2013, the 628 foot M/V CHAMPION EXPRESS was reported adrift approximately 8NM West of Half Moon Bay, CA. The loaded bulk cargo ship carrying liquid fertilizer had reported an engine leak that forced an engine shutdown. At the time USCG contacted their NOAA SSC, she had been drifting for approximately 5 hours. A tug was en route at the time of the call and expected to be on-scene in an hour or so. USCG Sector SF requested a precautionary drift estimate of the ship in the event there is difficulty getting her under tow. No pollution has been reported or is anticipated at this time.

    Original record
  13. IncidentNews F/V Betty K; 7 miles west of Half Moon Bay, CA 17 km away

    USCG Coast Guard Sector San Francisco notified the NOAA SSC of the F/V Betty K that sank approximately 7nm west of Pillar Point (near Half Moon Bay, CA). She sank at 1425hrs (local time) with up to 300 gallons diesel fuel on board. A USCG vessel on-scene reported a 1000' sheen trailing to the south at 1445hrs (local time). Trajectory support was requested.

    Original record
  14. IncidentNews Mystery Tarball Incident; Pacifica, CA 9.5 km away

    On January 28, 2008, tarballs began washing ashore on numerous beaches between Mussel Rocks and Carmel, CA with the highest concentration being reported near Pacifica and Half Moon Bay. Shoreline surveys & cleanup were initiated by Cosco Busan responders, a NOAA trajectory hindcast was requested and tarball samples were sent for laboratory analysis to determine whether the oil was from the Cosco Busan incident or some other source. Both trajectory estimates and analytical results were consistent with natural seep area(s) south of Monterey Bay as the potential oil source.

    Original record
  15. IncidentNews Gasoline Spill; Half Moon Bay, CA 8.5 km away

    gasoline spill; 700 gall; notification

    Original record
  16. IncidentNews Helium release; near Halfmoon Bay, CA 6.3 km away

    The Navy had a diving incident involving helium. NWS provided phone support.

    Original record
  17. IncidentNews Unexploded Torpedo; Pillar Point Harbor, CA 22.3 km away

    On Tuesday, June 10, a diver discovered a 1940's era torpedo off the fuel pier in Pillar Point Harbor, CA. Navy EOD (Explosive Ordnance Demolition) divers confirmed it to be a potentially live torpedo carrying up to 494 pounds of TNT. As public safety emergency, the US Navy EOD team planned to move the torpedo to a site in 95 ft. of water approximately 4 miles west of Point San Pedro for underwater detonation.

    Original record
  18. IncidentNews Fish Boat Aground; Pillar Point, California 6.3 km away

    A 40-foot fishing vessel ran aground at Pillar Point, California at about 2130 hours on March 3, 1999. The vessel, estimated to have 500 gallons of diesel fuel onboard, started leaking at about 1700 hours on March 31. Weather at the time of the incident was northwest winds 20 to 25 knots. The RP hired a cleanup contractor to remove a small amount of sheen. This area is inshore of the boundaries of the Monterey Bay National Marine Sanctuary. Also, the James Fitzgerald Marine Reserve is located in the vicinity, starting at Pillar Point and extending along the coastline north about 2 miles, and offshore about 0.5 nm. There is a boat ramp and a hoist inside Pillar Point Harbor and numerous access points. Recreational boating is common in this area, and there are several recreational beaches to the south of Pillar Point Harbor. Half Moon Bay Airport is located within a mile of the Harbor. USCG district 11. Keyword: evaporation, sorbent boom, threatened specie.

    Original record