Thursday, July29, 2021
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Marine Weather and Tides
Pescadero, CA

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:09AMSunset 8:19PM Thursday July 29, 2021 6:29 PM PDT (01:29 UTC) Moonrise 10:52PMMoonset 10:57AM Illumination 69% Phase: Waning Gibbous; Moon at 20 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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PZZ560 Coastal Waters From Pigeon Point To Point Pinos California Out To 10 Nm- 238 Pm Pdt Thu Jul 29 2021
Tonight..NW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Wind waves around 3 ft. SWell S around 2 ft at 13 seconds.
Fri..W winds 5 to 10 kt. Wind waves around 3 ft. SWell S around 2 ft at 14 seconds.
Fri night..SW winds 5 to 10 kt. Wind waves around 3 ft. SWell S around 2 ft at 14 seconds. Patchy fog.
Sat..SW winds 5 to 10 kt. Wind waves around 3 ft. SWell S around 2 ft at 15 seconds.
Sat night..W winds around 5 kt. Wind waves around 3 ft. SWell S around 2 ft at 14 seconds.
Sun..W winds 5 to 10 kt. Wind waves 3 to 4 ft. SWell S around 2 ft at 16 seconds.
Sun night..W winds around 5 kt. Wind waves 3 to 4 ft. SWell S around 2 ft at 16 seconds.
Mon..NW winds 10 to 15 kt. Wind waves 4 to 5 ft. SWell S around 2 ft.
Tue..NW winds 15 to 20 kt. Wind waves around 4 ft. SWell S around 2 ft.
PZZ500 238 Pm Pdt Thu Jul 29 2021
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Predominately light winds today, with locally gusty winds in the outer waters north of point reyes. In addition, the afternoon seabreeze will bring gusty west to southwest winds from the golden gate gap towards angel island, san pablo bay, and the carquinez strait through at least the next couple of days. Otherwise, a moderate southerly swell will persist in the waters.


7 Day Forecast for Marine Location Near Pescadero, CA
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location: 37.18, -122.39     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 292359 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 459 PM PDT Thu Jul 29 2021

SYNOPSIS. Seasonably warm weather continues into Friday before a slight cooling trend arrives Saturday through early next week. High pressure rebuilds over Southern California by the middle of next week with more inland warming while the marine layer will persist along the coast.

DISCUSSION. as of 2:55 PM PDT Thursday . Skies are mostly sunny this afternoon while a few high clouds pass over the region. Along the coast the marine layer is hugging area beaches with a current depth around 1200-1500 feet. Meanwhile over the Sierra moisture is increasing with numerous showers and t-storms across the crest and streaming northward. The ocean sea surface temps (SST) have trended upward the last few days as coastal upwelling has eased with light northwest winds. Current SST readings around 60 degrees has left the coast feeling muggier than normal and mild overnight lows even within the marine boundary layer. Temps this afternoon still running pretty hot inland with widespread 90s and even some lower 100s for the hottest interior valleys.

For tonight expect the marine layer to only push locally into the bay and coastal valleys given the shallow depth though onshore gradients remain moderate around 2.5 mb.

For Friday, still not expecting much overall change as seasonably hot weather will continue inland with mild to warm conditions near the coast and bays. Monsoonal moisture will still be abundant across the Sierra and Nevada as well as points northward but not expected to impact the Bay Area/Central Coast.

An incoming trough will approach late Friday night into Saturday. This should lead to a deepening marine layer and stronger onshore winds by Saturday afternoon and ultimately some slight cooling inland as upper 80s/lower 90s become more common versus upper 90s to lower 100s. This trough will bring increasing southwest wind flow aloft helping to push any residual monsoon moisture well east of the Bay Area and more east of the crest. In addition a better mixing profile and stronger winds aloft should help to keep Dixie Fire smoke from draining down the valley and into the Bay Area.

Weak troughing off the coast into early next week should keep temps near to slightly below normal with persistent marine layer and onshore winds. Building high pressure over SoCal by middle to end of next week will bring renewed inland warming but in general a pretty seasonable pattern as we head into August. As noted this morning many of todays record highs date back to 1977 which preceded the late July/early August lightning of that summer. No record heat waves on the horizon and not seeing any signals for lightning events at this time in the mid/long range as monsoonal pushes look to stay to our east.

AVIATION. as of 05:00 PM PDT Thursday . For the 00z TAFs. The latest coastal profilers continue to pick up on a shallow 700-1000 ft marine layer over our coastal waters that is helping to sustain 10-15kt winds over our coastal terminals this afternoon, particularly along our gaps and passes. Monsoonal moisture also continues to travel aloft, bringing in FEW/SCT cigs at 15000-20000 ft that will be a recurring theme through the end of the TAF period. For tonight, will see a return of IFR/LIFR cigs at our coastal terminals and even some patchy VLIFR cigs along the coast. Given the westerly flow, cannot rule out some coastal stratus making it into some of the North Bay terminals, mainly around STS, so have included the possibility there as well. Cigs will be relatively low given the shallow marine layer interface, and will be persistent through the overnight before clearing out by 16-17Z tomorrow. A similar pattern can be expected through the day tomorrow as VFR returns to the surface and mid/high-level clouds continue to roll over the region.

Vicinity of KSFO . Mostly VFR through the TAF period. Winds this afternoon will peak to nnw 15-20 kts. These winds look to last through that evening but will gradually back off during the overnight. For tonight, patchy stratus deck returns with borderline MVFR/IFR SCT/BKN deck into mid-morning Friday. Increasing confidence in this cigs being observed within the vicinity, so have added a TEMPO group to account for some of those conditions as stratification builds along the Bay Shoreline. Stratus will then rapidly retreat after 16Z, with breezy conditions and mid/high-level clouds expected through the end of the TAF period.

KSFO Bridge Approach . Similar to KSFO.

Monterey Bay . Breeze winds this afternoon as the Marine layer compresses. Light, variable winds will then be the theme for the evening along with the return of IFR cigs at the terminals and even some LIFR/VLIFR cigs along the immediate coast. These conditions will fizzle our by mid-morning.

MARINE. as of 04:37 PM PDT Thursday . Predominately light winds today, with locally gusty winds in the outer waters north of Point Reyes. In addition, the afternoon seabreeze will bring gusty west to southwest winds from the Golden Gate gap towards Angel Island, San Pablo Bay, and the Carquinez Strait through at least the next couple of days. Otherwise, a moderate southerly swell will persist in the waters.

MTR WATCHES/WARNINGS/ADVISORIES. Tngt. SCA . Pt Arena to Pigeon Pt 10-60 nm until 3 AM SCA . SF Bay until 9 PM



PUBLIC FORECAST: RWW AVIATION: Diaz MARINE: DRP

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RTYC1 - 9414523 - Redwood City, CA 24 mi60 min NNW 8.9 G 12 69°F 1013 hPa
46269 25 mi60 min 59°F 60°F2 ft
46042 - MONTEREY - 27NM West of Monterey Bay, CA 27 mi50 min W 7.8 G 9.7 58°F 60°F1013.9 hPa
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 29 mi50 min W 3.9 G 5.8 57°F 1013.9 hPa56°F
46114 - West Monterey Bay, CA 33 mi64 min 59°F3 ft
46092 - MBM1 35 mi67 min WSW 9.7 58°F 59°F1013.1 hPa (-1.1)
MLSC1 - Moss Landing, South Harbor, CA 41 mi44 min 58°F
AAMC1 - 9414750 - Alameda, CA 41 mi60 min W 7 G 9.9 65°F 69°F1012.8 hPa
PXSC1 43 mi60 min 65°F 65°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 43 mi60 min WSW 8 G 14 65°F 1011.5 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 43 mi60 min W 6 G 7
OBXC1 43 mi60 min 63°F
FTPC1 - 9414290 - San Francisco, CA 43 mi60 min WSW 8.9 G 19 58°F 62°F1012.5 hPa
LNDC1 43 mi60 min WSW 4.1 G 6 69°F 1012.5 hPa
ELXC1 - Elkhorn Slough Reserve, CA 43 mi105 min WNW 6 60°F 1014 hPa58°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 44 mi60 min NW 5.1 G 6 65°F 1012.5 hPa
46237 - San Francisco Bar, CA (142) 44 mi60 min 60°F3 ft
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 46 mi50 min W 3.9 G 5.8 59°F1013.7 hPa
46240 - Cabrillo Point, Monterey Bay, CA (158) 46 mi64 min 58°F1 ft
MEYC1 48 mi60 min SSW 6 G 8.9 63°F 1013.5 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 49 mi79 min N 6 72°F 1012 hPa

Wind History for Redwood City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Link to 5 minute data for KPAO

Wind History from PAO (wind in knots)
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Last 24hrNW13N11NW6------------------33NE5N6N8N8N8N10NW11N11--NW9
1 day ago----N13------------------NW53CalmCalmN5--N10N9N11NW13N14N17
2 days agoN12N12N10------------------CalmCalmNW5N8N10N8NW10--NW10N14N15N16

Tide / Current Tables for Ano Nuevo Island, California
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Ano Nuevo Island
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Thu -- 02:21 AM PDT     4.10 feet High Tide
Thu -- 06:12 AM PDT     Sunrise
Thu -- 08:53 AM PDT     0.73 feet Low Tide
Thu -- 11:57 AM PDT     Moonset
Thu -- 03:33 PM PDT     4.71 feet High Tide
Thu -- 08:19 PM PDT     Sunset
Thu -- 10:00 PM PDT     1.91 feet Low Tide
Thu -- 11:51 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.33.84.143.62.92.11.40.90.711.62.53.44.24.64.74.33.83.12.521.92

Tide / Current Tables for Half Moon Bay, California
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Half Moon Bay
Click for Map
Thu -- 02:39 AM PDT     4.50 feet High Tide
Thu -- 06:11 AM PDT     Sunrise
Thu -- 09:07 AM PDT     0.83 feet Low Tide
Thu -- 11:58 AM PDT     Moonset
Thu -- 03:51 PM PDT     5.11 feet High Tide
Thu -- 08:20 PM PDT     Sunset
Thu -- 10:14 PM PDT     2.01 feet Low Tide
Thu -- 11:52 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.444.44.54.13.52.61.71.10.811.62.53.54.34.95.14.84.33.52.82.322.1

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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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