Tuesday, March2, 2021
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Marine Weather and Tides
San Leandro, 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 6:36AMSunset 6:04PM Tuesday March 2, 2021 3:07 PM PST (23:07 UTC) Moonrise 10:15PMMoonset 8:51AM Illumination 82% Phase: Waning Gibbous; Moon at 19 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- 153 Pm Pst Tue Mar 2 2021
Rest of today..NW winds up to 10 kt.
Tonight..W winds up to 10 kt.
Wed..W winds 5 to 15 kt.
Wed night..SW winds up to 10 kt.
Thu..S winds up to 10 kt.
Thu night..S winds up to 10 kt.
Fri..SW winds up to 10 kt. A chance of rain.
Sat..W winds 5 to 10 kt. A chance of rain.
PZZ500 153 Pm Pst Tue Mar 2 2021
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... A low pressure system over the eastern pacific will move across the waters into tomorrow, though winds will remain generally light to locally moderate. Building northwest swell will cause hazardous seas conditions for smaller vessels into tomorrow morning over the outer waters. Winds will gradually increase and turn southerly on Thursday ahead of the next frontal system set to arrive Friday and Saturday. Moderate northwest swell will over the next couple of days before a longer period northwest swell arrives late this week.


7 Day Forecast for Marine Location Near San Leandro, CA
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location: 37.68, -122.17     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 022208 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 208 PM PST Tue Mar 2 2021

SYNOPSIS. Dry and mild weather conditions continue with slight cooling late in the week. Rain chances increase late Friday into Saturday with the potential for unsettled conditions to persist into early next week.

DISCUSSION. as of 02:08 PM PST Tuesday . Fairly clear skies continue over the region as a low pressure system spins well offshore to our west. That system will stream some high clouds over CA and will move southward then into SoCal. For the Bay Area and Central CA, we'll remain dry and mild for much of this week. Daytime highs will range in the 60s to low 70s and overnight lows will be in the 40s along the coast and in the 30s for the colder inland valleys.

The big story is that we're watching the forecast models for an incoming cold front this weekend. Models continue to suggest that light rain could start up in the North Bay on Friday aftn/evening then move southward across our region through Saturday. The heaviest rain should fall Saturday morning. Confidence remains low on the details of rain rates, but we are monitoring the trends in case it could impact burn scars. Rain totals will generally be light to moderate for our CWA. Coastal mountains should have the highest amounts around 0.5-1", but the inland areas will be much lighter around 0.25" or less with some areas in the North Bay or near the coast getting up to 0.4". Winds with this frontal passage should be enhanced starting with southwesterly flow and then turning northwesterly behind the front. Still trying to nail down exactly how strong wind gusts could be and if the higher 925 mb winds will mix down to the surface. Initial estimates are that wind gusts could range 15-25 mph, locally higher over peaks and ridges. One thing to note about the forecast is that the prior ECMWF run was suggesting that the storm could turn into a cut-off low and move just south of our region . which would have meant a drier scenario for our CWA. Latest deterministic ECMWF run has returned back to a typical trough moving inland. In addition, the ECMWF ensemble showed 36 out of 50 members with rain and the GFS ensemble showed 26 out of 30 members with rain, so there is less confidence in the cut-off low being a possibility.

Showers will diminish by Saturday afternoon/evening, but we could see some lingering light showers on Sunday, mainly in the North Bay. Models then suggest that another storm could move in sometime Monday or Tuesday and that unsettled weather will continue next week.

AVIATION. as of 9:35 AM PST Tuesday . For the 18Z TAFs. VFR conditions through the period. Satellite imagery shows some high clouds over land and low clouds still well offshore over the ocean. Still do not expect these clouds to impact the terminals, though FEW-SCT cigs may reach some of the coastal taf sites. Latest high res models have backed off on low level moisture overnight, therefore have not added in BKN low cigs into the 18z taf package. Expect increasing high clouds from the upper low offshore as it continues to move towards southern California. Generally light winds at or under 10 kt, onshore this afternoon. Vicinity of KSFO . VFR, light and variable wind increasing to 10 knots W/NW in the afternoon and early evening. SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . VFR, continued SE winds this morning around 5 to 10 kt should turn onshore this afternoon and evening. Latest models have backed off on low level moisture along the coast and over the Monterey Bay tonight/tomorrow morning. Elected to keep BKN low cigs out of the tafs for now, but some SCT low clouds still possible overnight.

MARINE. as of 01:24 PM PST Tuesday . A low pressure system over the eastern Pacific will move across the waters into tomorrow, though winds will remain generally light to locally moderate. Building northwest swell will cause hazardous seas conditions for smaller vessels later today into the evening. Winds will gradually increase and turn southerly on Thursday ahead of the next frontal system set to arrive Friday and Saturday. Moderate northwest swell will over the next couple of days before a longer period northwest swell arrives late this week.

MTR WATCHES/WARNINGS/ADVISORIES. Tday. SCA . Pt Arena to Pigeon Pt 10-60 nm SCA . Pigeon Pt to Pt Piedras Blancas 10-60 nm from 4 PM



PUBLIC FORECAST: Bingaman AVIATION: AS MARINE: AS

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
AAMC1 - 9414750 - Alameda, CA 9 mi139 min W 7 G 9.9 58°F 55°F1013.7 hPa
LNDC1 10 mi139 min WNW 6 G 11 59°F 1013.4 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 12 mi139 min WNW 12 G 13
RTYC1 - 9414523 - Redwood City, CA 12 mi139 min NNW 8 G 9.9 61°F 59°F1013.8 hPa
OBXC1 12 mi139 min 56°F 46°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 13 mi139 min WNW 12 G 13 54°F 1013.5 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 14 mi139 min WSW 7 G 11 58°F 1012.7 hPa
PXSC1 15 mi139 min 58°F 45°F
FTPC1 - 9414290 - San Francisco, CA 18 mi139 min WSW 9.9 G 14 54°F 53°F1013.7 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 19 mi139 min SW 5.1 G 6 58°F 1013.9 hPa
RCMC1 - 9414863 - Richmond, CA 21 mi145 min NNW 1 G 1.9 57°F 54°F1013.6 hPa
UPBC1 25 mi139 min E 1.9 G 2.9
MZXC1 - 9415102 - Martinez-Amorco CA 25 mi139 min ESE 1.9 G 2.9 68°F 55°F1013.2 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 26 mi139 min WNW 5.1 G 6 58°F 1013.1 hPa
46237 - San Francisco Bar, CA (142) 26 mi157 min 53°F4 ft
PCOC1 - 9415144 - Port Chicago, CA 27 mi139 min W 6 G 6 62°F 56°F1012.9 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 29 mi139 min Calm G 1.9 66°F 1012.8 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 36 mi127 min NNW 3.9 G 3.9
SFXC1 - San Francisco Bay Reserve, CA 37 mi142 min NE 8 69°F 1013 hPa31°F
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 44 mi127 min 3.9 G 5.8 48°F 45°F
PRYC1 - 9415020 - Point Reyes, CA 48 mi139 min 51°F1014.2 hPa

Wind History for Alameda, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hayward, Hayward Air Terminal, CA3 mi73 minW 1010.00 miFair62°F41°F46%1012.9 hPa
Oakland, Metro Oakland International Airport, CA3 mi74 minW 910.00 miMostly Cloudy64°F44°F48%1012.5 hPa
San Carlos Airport, CA11 mi2.3 hrsN 710.00 miPartly Cloudy63°F30°F30%1013.2 hPa
San Francisco, San Francisco International Airport, CA11 mi71 minNW 1110.00 miMostly Cloudy62°F41°F46%1012.1 hPa
Palo Alto Airport, CA14 mi80 minN 1010.00 miMostly Cloudy61°F46°F59%1012.2 hPa
Mountain View, Moffett Field, CA18 mi77 minN 1210.00 miFair63°F39°F42%1011.8 hPa
Livermore, Livermore Municipal Airport, CA19 mi74 minVar 310.00 miFair67°F28°F23%1011.3 hPa
Half Moon Bay Airport, CA21 mi72 minWSW 66.00 miFair with Haze55°F45°F67%1012.9 hPa
Concord, Buchanan Field, CA22 mi74 minNNW 710.00 miFair69°F29°F22%1010.5 hPa

Link to 5 minute data for KOAK

Wind History from OAK (wind in knots)
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Last 24hrW3NW7NW9N6N8N7N4NW3NW8NW4NE4SE4E4SE3N4SE5S7S6SW5W6W7W12W9W10
1 day ago4NW10NW7W6NW8CalmN3NE5SE6E4E4CalmCalmNE5CalmCalmNE3W35NW6SW5W5NW9W4
2 days agoW15W13NW8NW7NW9NW5N10NW9NW7NW10NW10N7NW4E5CalmCalmCalmE3W3W10SW9NE12
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Tide / Current Tables for Roberts Landing, 1.3 miles west of, San Francisco Bay, California
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Roberts Landing
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Tue -- 02:30 AM PST     7.29 feet High Tide
Tue -- 06:38 AM PST     Sunrise
Tue -- 08:50 AM PST     Moonset
Tue -- 08:56 AM PST     0.89 feet Low Tide
Tue -- 02:42 PM PST     6.62 feet High Tide
Tue -- 06:03 PM PST     Sunset
Tue -- 09:01 PM PST     1.01 feet Low Tide
Tue -- 10:15 PM PST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.86.37.27.26.55.23.62.21.20.91.42.64.15.56.46.66.153.72.31.411.42.6

Tide / Current Tables for Oakland Airport SW, South San Francisco Bay, California Current
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Oakland Airport SW
Click for Map
Tue -- 02:17 AM PST     -0.01 knots Slack
Tue -- 05:04 AM PST     -0.83 knots Max Ebb
Tue -- 06:38 AM PST     Sunrise
Tue -- 08:22 AM PST     0.00 knots Slack
Tue -- 08:51 AM PST     Moonset
Tue -- 11:34 AM PST     0.67 knots Max Flood
Tue -- 02:46 PM PST     -0.00 knots Slack
Tue -- 05:26 PM PST     -0.73 knots Max Ebb
Tue -- 06:03 PM PST     Sunset
Tue -- 08:35 PM PST     0.00 knots Slack
Tue -- 10:15 PM PST     Moonrise
Tue -- 11:51 PM PST     0.64 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.40.1-0.3-0.7-0.8-0.7-0.4-0.10.20.50.60.70.50.2-0.1-0.5-0.7-0.7-0.5-0.20.10.40.6

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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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