Thursday, July29, 2021
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Marine Weather and Tides
Alameda, 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 8:21PM Thursday July 29, 2021 8:12 AM PDT (15:12 UTC) Moonrise 10:51PMMoonset 10:57AM Illumination 73% 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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PZZ531 San Francisco Bay South Of The Bay Bridge- 306 Am Pdt Thu Jul 29 2021
Today..NW winds 10 to 20 kt.
Tonight..NW winds 5 to 10 kt.
Fri..NW winds 10 to 20 kt.
Fri night..W winds 5 to 10 kt.
Sat..SW winds 5 to 10 kt.
Sat night..W winds 5 to 10 kt.
Sun..W winds 10 to 15 kt.
Mon..W winds 10 to 15 kt.
PZZ500 306 Am 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... Occasionally gusty northwest winds across the northern outer waters and gusty west winds each afternoon and evening across the san francisco bay north of the bay bridge otherwise light northwest winds through Monday. A moderate period southerly swell will persist in the waters.


7 Day Forecast for Marine Location Near Alameda, CA
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location: 37.78, -122.28     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 291154 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 454 AM PDT Thu Jul 29 2021

SYNOPSIS. Seasonably warm weather pattern continues inland through Friday with high pressure over the region. A shallow marine layer will persist along the coast keeping temperatures seasonably mild near the coast and bays. A modest cooling trend starts this weekend for inland areas as onshore winds strengthen and the marine layer deepens along the coast.

DISCUSSION. as of 4:51 AM PDT Thursday . USGS reported a major (magnitude 8.2) earthquake 62 miles southeast of Perryville Alaska last night. However, after reviewing subsequent data and model projections the Tsunami Warning Center has given an "all clear" for all U.S. West Coast residents. No further alerts/updates are expected. Atypical though small non-advisory fluctuations are likely along the California coastline and harbors and bays may experience unusual currents through mid to late morning.

A quiet summer-time weather pattern is ongoing, stratus and fog are filling back in along the coast and nearby coastal valleys. Mid and high level clouds are moving northward across the north Central Coast and the Bay Area; mid level instability is producing a few sprinkles /virga/ over the southern coastal waters per KMUX radar. Not much time to look over weather data and model output overnight. Current forecast looks good, no updates as of this early morning hour. May need to monitor mid level instability a bit more closely. A quick look at qpf forecasts from model output leans toward night and morning coastal drizzle over the weekend and next week.

AVIATION. as of 4:24 AM PDT Thursday . For the 12z TAFs. High clouds continue to be a factor giving and obstructed view of the low level clouds that have struggled to push inland overnight. Monterey Bay terminals continue to be at IFR as well as OAK and STS, while other TAF sites remain at VFR. Winds will stay mild for into Thursday morning but will begin to increase in the late morning. Cloud cover around the SF Bay will clear much sooner than the Monterey Bay meaning OAK and STS will return to VFR in the early to mid morning, while MRY and SNS will go VFR closer to noon. Expect a mostly clear Thursday afternoon with moderate westerly winds.

Vicinity of KSFO . VFR through the TAF period. Expect few to scattered low clouds lingering in the morning, but thinning out into the afternoon. Winds remain mild until afternoon with peak winds from the Northwest around 19 kts. These winds look to last through that evening but back off into Thursday night.

KSFO Bridge Approach . Similar to KSFO.

Monterey Bay . IFR until the late morning with stratus retreating before noon, leading to VFR. Winds remain weak and variable through the morning, before becoming more moderate in the afternoon. Winds weaken and stratus returns in the late evening and early night leading to IFR around the Monterey Bay overnight.

MARINE. as of 3:12 AM PDT Thursday . Occasionally gusty northwest winds across the northern outer waters and gusty west winds each afternoon and evening across the San Francisco Bay north of the Bay Bridge otherwise light northwest winds through Monday. A moderate period southerly swell will persist in the waters.

MTR WATCHES/WARNINGS/ADVISORIES. Tday. SCA . SF Bay from 3 PM



PUBLIC FORECAST: Canepa AVIATION: Murdock MARINE: Canepa

Visit us at www.weather.gov/sanfrancisco

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
AAMC1 - 9414750 - Alameda, CA 1 mi54 min W 5.1 G 8 59°F 68°F1015.3 hPa
LNDC1 1 mi54 min W 4.1 G 7 58°F 1015 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 3 mi54 min WSW 7 G 8
OBXC1 4 mi54 min 59°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 4 mi54 min W 2.9 G 4.1 58°F 1015 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 6 mi54 min W 2.9 G 5.1 57°F 1014 hPa
PXSC1 6 mi60 min 58°F 58°F
FTPC1 - 9414290 - San Francisco, CA 10 mi54 min WSW 4.1 G 7 56°F 62°F1015.2 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 10 mi54 min SSW 12 G 17 57°F 1015.2 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 12 mi61 min ESE 2.9 56°F 1015 hPa
RCMC1 - 9414863 - Richmond, CA 12 mi60 min S 5.1 G 7 58°F 63°F1014.9 hPa
46237 - San Francisco Bar, CA (142) 19 mi42 min 59°F4 ft
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 19 mi54 min WSW 12 G 16 58°F 1014.3 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 19 mi54 min WNW 15 G 19 59°F 68°F1014 hPa
RTYC1 - 9414523 - Redwood City, CA 19 mi54 min SE 1.9 G 2.9 62°F 1015.6 hPa
UPBC1 20 mi54 min WNW 12 G 18
CQUC1 20 mi59 min 67°F
PCOC1 - 9415144 - Port Chicago, CA 23 mi54 min W 22 G 25 60°F 69°F1013.6 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 28 mi54 min NW 16 G 21 64°F 1012.4 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 30 mi32 min S 5.8 G 7.8 58°F1015.6 hPa
SFXC1 - San Francisco Bay Reserve, CA 32 mi87 min W 15 61°F 1013 hPa56°F
PRYC1 - 9415020 - Point Reyes, CA 40 mi54 min 58°F1015.1 hPa
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 43 mi32 min SSW 5.8 G 7.8 55°F 1015.8 hPa54°F

Wind History for Alameda, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Oakland, Metro Oakland International Airport, CA6 mi19 minN 010.00 miMostly Cloudy62°F57°F84%1015.1 hPa
Hayward, Hayward Air Terminal, CA12 mi18 minN 010.00 miA Few Clouds62°F57°F84%1015.7 hPa
San Francisco, San Francisco International Airport, CA12 mi16 minN 310.00 miMostly Cloudy62°F56°F80%1014.8 hPa
San Carlos Airport, CA17 mi18 minN 010.00 miOvercast63°F59°F88%1015.2 hPa
Concord, Buchanan Field, CA18 mi19 minNW 710.00 miFair65°F56°F73%1012.6 hPa
Palo Alto Airport, CA22 mi25 minVar 310.00 miOvercast63°F57°F83%1015.2 hPa

Link to 5 minute data for KOAK

Wind History from OAK (wind in knots)
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Last 24hrW5W5W4NW7NW12NW12NW13NW15NW17NW15NW11NW11NW10NW11NW11NW11N8NW6NW8NW7N5NW5NW3Calm
1 day agoNW45NW8NW10NW10NW14NW13W14W13NW14NW11NW9NW7NW6N4NW4NW4NW7N5NW6NW5N4NW6NW4
2 days agoNW6NW7NW8NW7NW9NW11NW13NW12NW12NW11NW13NW11N7NW9N5N7NW3N6N5NW5CalmNW3N3Calm

Tide / Current Tables for Alameda, San Francisco Bay, California
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Alameda
Click for Map
Thu -- 04:16 AM PDT     5.29 feet High Tide
Thu -- 06:10 AM PDT     Sunrise
Thu -- 10:29 AM PDT     0.75 feet Low Tide
Thu -- 11:57 AM PDT     Moonset
Thu -- 05:21 PM PDT     6.00 feet High Tide
Thu -- 08:20 PM PDT     Sunset
Thu -- 11:35 PM PDT     1.93 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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2.63.44.24.95.35.14.53.42.21.30.80.81.32.33.54.65.565.95.24.33.32.52

Tide / Current Tables for Oakland Inner Harbor Reach, 33 ft. below datum Current
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Oakland Inner Harbor Reach
Click for MapFlood direction 82 true
Ebb direction 255 true

Thu -- 01:59 AM PDT     0.23 knots Max Flood
Thu -- 04:29 AM PDT     -0.00 knots Slack
Thu -- 06:10 AM PDT     Sunrise
Thu -- 06:54 AM PDT     -0.33 knots Max Ebb
Thu -- 09:41 AM PDT     0.00 knots Slack
Thu -- 11:57 AM PDT     Moonset
Thu -- 02:30 PM PDT     0.28 knots Max Flood
Thu -- 05:20 PM PDT     -0.00 knots Slack
Thu -- 07:32 PM PDT     -0.29 knots Max Ebb
Thu -- 08:20 PM PDT     Sunset
Thu -- 10:30 PM PDT     0.00 knots Slack
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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0.20.20.20.20.1-0.1-0.3-0.3-0.3-0.100.10.20.30.30.30.20.1-0.1-0.3-0.3-0.2-0.10

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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