Tuesday, May11, 2021
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Marine Weather and Tides
Carmet, CA

Version 3.4
NOTICE
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 6:01AMSunset 8:14PM Tuesday May 11, 2021 6:34 PM PDT (01:34 UTC) Moonrise 5:11AMMoonset 7:24PM Illumination 0% Phase: New Moon; Moon at 0 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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PZZ540 Coastal Waters From Point Arena To Point Reyes California Out To 10 Nm- 204 Pm Pdt Tue May 11 2021
Today..NW winds 5 to 15 kt, becoming sw this afternoon. Wind waves 6 to 7 ft. W swell 2 to 3 ft at 14 seconds.
Tonight..SW winds up to 10 kt. Wind waves 6 to 7 ft. W swell 2 to 3 ft at 13 seconds and sw around 2 ft at 17 seconds. Patchy dense fog.
Wed..S winds 5 to 10 kt. Wind waves 4 to 5 ft. NW swell 2 to 3 ft at 12 seconds and sw around 2 ft at 16 seconds. Patchy dense fog.
Wed night..SW winds up to 10 kt. Wind waves 4 to 5 ft. NW swell 2 to 3 ft at 11 seconds and sw around 2 ft at 16 seconds. Patchy fog.
Thu..SW winds around 5 kt. Wind waves 4 to 5 ft. NW swell around 2 ft at 11 seconds and sw around 2 ft at 15 seconds. Patchy dense fog.
Thu night..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 6 to 7 ft. Mixed swell nw 2 to 3 ft at 10 seconds and S around 2 ft at 15 seconds.
Fri..NW winds 20 to 30 kt with gusts up to 35 kt. Wind waves 9 to 10 ft. SWell sw around 2 ft.
Sat..NW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 8 to 9 ft. SWell sw around 2 ft.
PZZ500 204 Pm Pdt Tue May 11 2021
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Light to locally moderate winds across the coastal waters through mid to late week. Northwest winds will strengthen towards the end of the week as the next system approaches. Strongest winds are expected over the northern outer waters. As winds continue to diminish, seas will also subside leaving a pair of light northwest and southerly swells.


7 Day Forecast for Marine Location Near Carmet, CA
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location: 38.37, -123.08     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 120037 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 537 PM PDT Tue May 11 2021

SYNOPSIS. Cooling conditions near the coast will gradually spread inland through late week along with an increase in night/morning low clouds. Near to slightly below normal daytime temperatures will then persist into the upcoming weekend with mainly dry weather conditions.

DISCUSSION. as of 12:50 PM PDT Tuesday . Slight cooling has returned to the region in response to a deepening marine layer and onshore flow near the coast. Meanwhile, light offshore flow persists across the interior where temperatures are likely to max out in the mid/upper 80s with a few spots reaching into the lower 90s. The onshore push is forecast to spread further inland through this evening and more so into tonight, reducing fire weather concerns in the North Bay and East Bay mountains/hills as well as the interior East Bay Valleys. Given this and the fact that offshore winds this afternoon have greatly diminished, the Red Flag Warning previously in effect has been cancelled. However, very dry conditions will persist through the remainder of the afternoon across the interior.

The cooling trend will expand inland on Wednesday with low clouds becoming more widespread near the coast and into the adjacent valleys tonight into Wednesday morning. Meanwhile, temperatures across the interior will remain well above average with high pressure aloft. Look for temperatures to cool back to near seasonal averages by late week as the mid/upper level ridge begins to flatten and more zonal flow develops aloft.

Forecast ensembles then indicate a mid/upper level trough and associated low will drop southward down the West Coast this upcoming weekend. This feature will likely further deepen the marine layer resulting in more widespread night/morning clouds along with cooler daytime temperatures. While some of the deterministic models do indicate the potential for light precipitation with this system Friday night into Saturday, confidence is low at this time with widespread beneficial rainfall unlikely.

AVIATION. As of 5:40 PM PDT Tuesday . For the 00z TAFs. A subtle low, in conjunction with an offshore high, are both helping to reintroduce onshore (W/NW) flow to the coast. The marine layer remains shallow across the Bay Area today and will begin its ebb- and-flow tonight in the form of stratus that will continue to intrude past the Golden Gate and spread lower cigs into the East Bay shoreline. Will remain VFR at SFO/LVK/SJC with the possibility of some early morning fog at STS/APC. As has been the case over the past few nights, the Monterey Bay terminals will be at the forefront of this onshore resurgence and are expecting MVFR/IFR at MRY/SNS as a result overnight. VFR will return to all of the terminals by mid/late morning tomorrow, along with a return to breezy onshore winds along the coastal and SF Bay terminals.

Vicinity of KSFO . A coastal eddy has helped to steer marine stratus past the Golden Gate this afternoon, with a narrow band going out past Alcatraz and into Berkeley. Have adjusted the current timing of the stratus intrusion with the environment of the HREF ensemble members so that MVFR/IFR conditions with BKN and OVC skies are accounted for at OAK. Given the trajectory of the stratus and the early nature of this ebb-and-flow resurgence, have kept SFO and SJC at VFR. Winds will weaken overnight (VRB at 3kts) and increase in intensity (310 deg 10-15kts) at SFO by tomorrow afternoon.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . Onshore flow is quickly helping to expand the marine layer signature of Monterey Bay, with the Fort Ord Profile measure a depth of 800-1000ft. This setup is quickly allowing the stratus to roll into the Northern Salinas Valley (e.g. MVFR conditions with BKN/OVC) and will begin to engulf the entire Bay starting this evening. Stratus will glide up and over the Monterey Peninsula and introduce MVFR/IFR conditions to MRY overnight as well. Localized IFR/LIFR will be possible just before dawn as winds die down but will quickly return to MVFR after dawn and VFR by mid-morning as the stratus flow back out to sea.

MARINE. as of 10:57 AM PDT Tuesday . Winds will continue to diminish across the coastal waters today with locally breezy conditions over the northern outer waters into this afternoon. Light winds then expected mid-week before re- strengthening into the weekend as the next system approaches. As winds diminish, seas will also subside with a light northwest and southerly swell prevailing.

MTR WATCHES/WARNINGS/ADVISORIES. Tngt. SCA . SF Bay until 9 PM



PUBLIC FORECAST: RGass AVIATION: Diaz MARINE: AS FIRE WEATHER: RGass/Dykema

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BDXC1 4 mi88 min 52°F
PRYC1 - 9415020 - Point Reyes, CA 26 mi46 min 50°F1013.9 hPa
46214 - Point Reyes, CA (029) 36 mi38 min 51°F8 ft
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 44 mi34 min SSE 3.9 G 5.8 53°F1014 hPa
46237 - San Francisco Bar, CA (142) 47 mi64 min 52°F5 ft
RCMC1 - 9414863 - Richmond, CA 47 mi52 min SE 1.9 G 6 62°F 61°F1012.1 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 47 mi53 min W 2.9 64°F 1012 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 48 mi46 min W 11 G 14 69°F 1011.1 hPa

Wind History for Point Reyes, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Santa Rosa, Santa Rosa Sonoma County Airport, CA17 mi41 minS 109.00 miFair73°F49°F43%1011.3 hPa

Link to 5 minute data for KSTS

Wind History from STS (wind in knots)
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Last 24hrW8SW3SE4CalmCalmSE3SE3CalmCalmS3CalmCalmCalmCalmCalmS3CalmS6S9S9S12S12S9S10
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Tide / Current Tables for Bodega Harbor entrance, California
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Bodega Harbor entrance
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Tue -- 05:59 AM PDT     -0.21 feet Low Tide
Tue -- 06:04 AM PDT     Sunrise
Tue -- 06:10 AM PDT     Moonrise
Tue -- 12:01 PM PDT     New Moon
Tue -- 12:32 PM PDT     4.12 feet High Tide
Tue -- 05:37 PM PDT     2.30 feet Low Tide
Tue -- 08:13 PM PDT     Sunset
Tue -- 08:23 PM PDT     Moonset
Tue -- 11:23 PM PDT     5.45 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.24.43.21.90.80-0.20.10.81.72.73.544.13.83.22.72.42.32.73.44.255.4

Tide / Current Tables for Salt Point, California Current
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Salt Point
Click for Map
Tue -- 12:05 AM PDT     -0.00 knots Slack
Tue -- 03:13 AM PDT     -1.33 knots Max Ebb
Tue -- 06:04 AM PDT     Sunrise
Tue -- 06:11 AM PDT     Moonrise
Tue -- 07:05 AM PDT     0.00 knots Slack
Tue -- 10:06 AM PDT     1.07 knots Max Flood
Tue -- 12:01 PM PDT     New Moon
Tue -- 01:20 PM PDT     -0.00 knots Slack
Tue -- 03:40 PM PDT     -0.76 knots Max Ebb
Tue -- 06:59 PM PDT     0.00 knots Slack
Tue -- 08:15 PM PDT     Sunset
Tue -- 08:25 PM PDT     Moonset
Tue -- 09:44 PM PDT     0.78 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.1-0.6-1.1-1.3-1.3-1-0.6-0.10.50.91.110.70.2-0.3-0.7-0.7-0.6-0.300.40.70.80.6

Weather Map
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GEOS Local Image of CentralWestCoast    EDIT
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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