Monday, January27, 2020
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Marine Weather and Tides
Richmond, CA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 7:16AMSunset 5:27PM Monday January 27, 2020 4:02 PM PST (00:02 UTC) Moonrise 9:13AMMoonset 8:17PM Illumination 9% Phase: Waxing Crescent; Moon at 3 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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PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 244 Pm Pst Mon Jan 27 2020
Tonight..W winds 5 to 10 kt. A slight chance of showers after midnight.
Tue..S winds 5 to 10 kt. A slight chance of showers.
Tue night..NW winds 5 to 15 kt.
Wed..NW winds up to 10 kt.
Wed night..NW winds 5 to 15 kt.
Thu..SW winds up to 10 kt.
Thu night..NW winds around 5 kt.
Fri..N winds around 5 kt.
Sat..N winds around 5 kt.
PZZ500 244 Pm Pst Mon Jan 27 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Light to moderate winds will prevail over most of the coastal waters through Tuesday. Locally stronger winds will occur south of point sur along the coast. Northerly winds will develop and increase over all the coastal waters Tuesday night into Wednesday. The increasing winds will result in steeper wind waves. Moderate northwest swell of 10 feet or more will bring hazardous conditions for small craft over most of the coastal waters. Another long period northwest swell will arrive later this week.


7 Day Forecast for Marine Location Near Richmond, CA
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location: 37.91, -122.38     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 272201 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 201 PM PST Mon Jan 27 2020

SYNOPSIS. Dry conditions are likely to persist region-wide today with light rain possible over the North Bay late tonight into Tuesday. A warming trend is then expected from Wednesday through Saturday. While dry conditions will continue, a cooling trend will occur by late in the upcoming weekend.

DISCUSSION. as of 02:00 PM PST Monday . Temperatures across the region this afternoon are in the upper 50s to low 60s with not much additional warming anticipated. Overall expect temperatures to top out into the low to mid 60s for most locations. Satellite imagery shows low clouds lingering around the Bay Area with some scattered clouds south of San Jose. Synoptically, high pressure remains situated over the eastern Pacific while high clouds approach ahead of a weak upper low. This system is set to move into the Pacific Northwest tonight while an associated cold front moves through the Bay Area late tomorrow morning and into the afternoon. As a result, the North Bay may see some light precipitation late tonight and tomorrow morning with lingering showers possible into the afternoon. Precipitation chances lessen significantly south and east of San Francisco, although a stray shower or two is not out of the question. Accumulations still look fairly minimal with a few hundredths to around a tenth of an inch expected across the North Bay.

Once the system exits the region later tomorrow, an upper level ridge will build over the eastern Pacific and expand inland through late week. This will bring dry and warming conditions to the area for the rest of the week and into the weekend. Models show 850 mb temperatures increasing to around 15 deg C by Friday and Saturday. For comparison, the 00z OAK sounding had yesterday afternoon around 6 deg C at 850 mb. By Thursday, highs are forecast in the mid to upper 60s with low to mid 70s expected for Friday and Saturday. This translates to roughly 5 to 10 degrees above normal to end the week and start the weekend. Conditions will begin to cool on Sunday and further on Monday as an upper trough moves through the region, though dry weather will likely persist.

Looking out into the longer term, the CPC 6-10 day and 8-14 day outlooks show below normal precipitation for California. Additionally, the longer range GFS shows dry conditions across much of the region through early February. Ensemble QPF for both the GFS and the ECMWF show mainly dry conditions as well through at least the first week of February with only some occasional minor accumulations here and there. Overall, dry weather looks to persist across the region heading into next month.

AVIATION. as of 11:59 AM PST Monday . A quick update as cloud feed into SF Bay is holding strong. It is now trending toward an all day event for SFO/OAK. For now will allow for a brief window late this afternoon to go SCT.

For 18Z TAFs. Tricky forecast this morning as persistent onshore flow/feed of low clouds have impacted SF Bay. An amendment was issued earlier and latest satellite imagery still shows no signs of clearing. Web cams do a few pockets of blue around SF Bay. Therefore, have pushed scattering until this afternoon, but may need some adjustments between now and then. KOAK and KSTS are also holding onto low cigs. Elsewhere, VFR conditions expected. A weak boundary will bring additional and possibly some -shra on Tuesday. KSTS, KOAK, KSFO are the most likely locations for -shra. Overall conf is medium, especially near term low clouds.

Vicinity of KSFO . Pushed SCT of low cigs through 20Z as a first guess. Could possibly SCT as early at 1830-1900Z. Will watch closely. Cigs return again tonight with a tempo for -shra tomorrow afternoon.

SFO Bridge Approach . Slightly better conditions at the bridge with SCT being report. Cams and Satellite however look more cloudy. Visuals will likely be an issue through early afternoon.

Monterey Bay Terminals . VFR. MVFR-IFR level SCT/BKN clouds from 04Z onward Monday night into Tuesday morning.

MARINE. as of 09:25 AM PST Monday . Light southerly winds will prevail north of Point Reyes and and breezy northerly winds will prevail south of the Golden Gate today. Locally moderate northerly winds will be present along the Big Sur coast. Winds are forecast to strengthen and become predominately southerly through mid week. Moderate northwest swell of 10 feet or more will bring hazardous conditions for small craft over most of the coastal waters. Another long period northwest swell will arrive later this week.

MTR WATCHES/WARNINGS/ADVISORIES. Tngt. SCA . Pigeon Pt to Pt Pinos 0-10 nm until 3 AM SCA . Pt Arena to Pt Reyes 0-10 nm SCA . Pt Pinos to Pt Piedras Blancas 0-10 nm SCA . Pt Arena to Pigeon Pt 10-60 nm SCA . Pigeon Pt to Pt Piedras Blancas 10-60 nm



PUBLIC FORECAST: AS AVIATION: MM MARINE: MM

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PPXC1 - 9414847 - Richmond (Point Potrero), CA 1 mi62 min SSW 8.9 G 12 56°F 1028.3 hPa (-1.9)
RCMC1 - 9414863 - Richmond, CA 2 mi62 min SSW 8 G 9.9 54°F
TIBC1 - Tiburon Pier, San Francisco Bay, CA 4 mi39 min WSW 7 57°F 1028 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 7 mi62 min SSW 5.1 G 6 57°F 1028.3 hPa (-1.6)
PXSC1 7 mi62 min 58°F 54°F
OBXC1 8 mi62 min 55°F 55°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 8 mi62 min WSW 6 G 9.9 57°F 1027.4 hPa (-1.5)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 8 mi62 min SSW 5.1 G 6
FTPC1 - 9414290 - San Francisco, CA 9 mi62 min SW 6 G 11
AAMC1 - 9414750 - Alameda, CA 10 mi62 min S 5.1 G 6 54°F
LNDC1 10 mi62 min SW 5.1 G 6 57°F 1028.3 hPa (-1.6)
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 12 mi62 min WSW 5.1 G 6 57°F 1027.6 hPa (-1.8)
UPBC1 16 mi62 min W 8.9 G 11
46237 - San Francisco Bar, CA (142) 16 mi32 min 54°F9 ft
MZXC1 - 9415102 - Martinez-Amorco CA 16 mi62 min W 8.9 G 9.9 58°F 52°F1027.7 hPa (-1.7)
PCOC1 - 9415144 - Port Chicago, CA 21 mi62 min WSW 8 G 11 58°F 52°F1027.3 hPa (-1.8)
SFXC1 - San Francisco Bay Reserve, CA 27 mi77 min W 8.9
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 27 mi22 min W 3.9 G 7.8 55°F 55°F1029.4 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 28 mi62 min WNW 7 G 11 60°F 1027.3 hPa (-1.6)
RTYC1 - 9414523 - Redwood City, CA 29 mi62 min SSE 1.9 G 2.9 58°F 55°F1028.9 hPa (-1.6)
PRYC1 - 9415020 - Point Reyes, CA 32 mi62 min 54°F1028.2 hPa (-1.4)
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 47 mi22 min WNW 5.8 G 7.8 55°F 55°F1029.4 hPa53°F

Wind History for Point Potrero Richmond, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Oakland, Metro Oakland International Airport, CA17 mi69 minS 610.00 miMostly Cloudy59°F52°F78%1028.4 hPa
Concord, Buchanan Field, CA18 mi69 minSW 910.00 miPartly Cloudy61°F48°F65%1026.2 hPa
Novato / Gnoss Field, CA19 mi67 minWSW 510.00 miA Few Clouds61°F50°F68%1028.1 hPa
San Francisco, San Francisco International Airport, CA20 mi66 minVar 59.00 miMostly Cloudy59°F48°F69%1028.2 hPa
Napa, Napa County Airport, CA21 mi68 minSW 610.00 miPartly Cloudy59°F51°F75%1026.8 hPa
Hayward, Hayward Air Terminal, CA22 mi68 minVar 410.00 miPartly Cloudy58°F50°F75%1029.4 hPa

Link to 5 minute data for KOAK

Wind History from OAK (wind in knots)
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Last 24hrW10W9W9NW7NW6CalmE3CalmSE4CalmS7S5E3CalmCalmE4SE4S4S4S6S4S6S6W8
1 day agoNW5NW3CalmNW3CalmNW3CalmS3SE3S4W9W6SW3S4SW5W7W5W5W12W11W9W12W10W12
2 days agoW5NW4NW4NW5NW3NW5E4NW3CalmCalmCalmSE3S4SE6CalmE3SE6S6S5CalmCalmW6W6NW4

Tide / Current Tables for Richmond Inner Harbor, San Francisco Bay, California
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Richmond Inner Harbor
Click for Map
Mon -- 02:13 AM PST     5.19 feet High Tide
Mon -- 07:17 AM PST     Sunrise
Mon -- 07:20 AM PST     2.67 feet Low Tide
Mon -- 09:12 AM PST     Moonrise
Mon -- 12:58 PM PST     5.85 feet High Tide
Mon -- 05:26 PM PST     Sunset
Mon -- 07:47 PM PST     -0.02 feet Low Tide
Mon -- 08:17 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.94.85.254.53.73.12.72.83.34.14.95.65.95.64.73.52.10.90.2-00.41.32.3

Tide / Current Tables for Point Richmond .5 mi W, San Francisco Bay, California Current
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Point Richmond .5 mi W
Click for Map
Mon -- 12:12 AM PST     1.03 knots Max Flood
Mon -- 03:35 AM PST     -0.01 knots Slack
Mon -- 05:35 AM PST     -0.69 knots Max Ebb
Mon -- 07:17 AM PST     Sunrise
Mon -- 08:32 AM PST     0.00 knots Slack
Mon -- 09:12 AM PST     Moonrise
Mon -- 11:51 AM PST     0.71 knots Max Flood
Mon -- 02:44 PM PST     -0.01 knots Slack
Mon -- 05:26 PM PST     Sunset
Mon -- 05:42 PM PST     -1.25 knots Max Ebb
Mon -- 08:17 PM PST     Moonset
Mon -- 09:14 PM PST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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110.70.3-0.2-0.6-0.7-0.5-0.20.10.40.60.70.60.3-0.1-0.7-1.2-1.2-1-0.6-0.10.30.7

Weather Map
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wmap_P
GEOS Local Image of CentralWestCoast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Francisco/Monterey Bay Area, CA (19,4,5,8)
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Ground Weather Radar Station Sacramento, CA
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The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.