Wednesday, November25, 2020
Privacy Policy
L-36.com

Marine Weather and Tides
Black Point-Green Point, CA

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 7:01AMSunset 4:53PM Wednesday November 25, 2020 2:52 AM PST (10:52 UTC) Moonrise 2:49PMMoonset 2:31AM Illumination 76% Phase: Waxing Gibbous; Moon at 10 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
    EDIT      (on/off)   Help
PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 908 Pm Pst Tue Nov 24 2020
Tonight..SW winds up to 10 kt.
Wed..NW winds 5 to 15 kt.
Wed night..NW winds 5 to 15 kt.
Thanksgiving day..N winds 10 to 20 kt with gusts up to 25 kt.
Thu night..S winds around 5 kt.
Fri..E winds 5 to 15 kt.
Fri night..NE winds around 5 kt.
Sat..NE winds around 5 kt.
Sun..N winds around 5 kt.
PZZ500 908 Pm Pst Tue Nov 24 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... A cold front will move over the coastal waters and bays late tonight and Wednesday morning. The cold front will bring a slight chance of showers mainly over the northern waters early Wednesday morning. Gusty northwest winds will generate steep fresh swell hazardous for small craft vessels. These winds are expected to continue through thanksgiving. A large long period swell train will arrive early Wednesday morning and taper off by Friday. Large surf midday Wednesday into midday Thursday may lead to additional hazards for small craft vessels.


7 Day Forecast for Marine Location Near Black Point-Green Point, CA
   Hourly   EDIT   Help
location: 38.11, -122.5     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS66 KMTR 250613 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 1013 PM PST Tue Nov 24 2020

SYNOPSIS. A mainly dry cold front will sweep through the region overnight into Wednesday morning. In addition, breezy to locally gusty offshore winds will develop in the region's higher elevations Wednesday through Thursday. Colder air will settled into the region late in the week resulting in colder overnight temperatures, especially in the interior valleys where freezing conditions will be possible.

DISCUSSION. as of 09:10 PM PST Tuesday . An upper level trough pushing inland across the Pacific Northwest is driving a cold front into northern California this evening. Regional radars and surface observations to our north are indicating light rainfall along the frontal boundary. However, all short-range guidance show precipitation diminishing in coverage as the frontal boundary drops southward through the night. Low clouds and patchy fog are developing across portions of the Bay Area and around the Monterey Bay in advance of this boundary as well.

The cold front is forecast to move across the Bay Area late tonight and then across the Central Coast early Wednesday morning. As mentioned above, measurable precipitation is unlikely with only a rouge shower, sprinkles and/or drizzle along the frontal passage. Clearing sky conditions are then anticipated on Wednesday with temperatures running 3 to 7 deg F cooler compared to this afternoon as cooler, drier air advects into the region. As the parent trough slides inland and then to the southeast through Thanksgiving Day, offshore winds will develop and increase in the region's hills, ridges and peaks. There will be the potential for gusty north to northwest winds of 35 to 45 mph in the highest elevations with a few gusts as high as 50 mph in the favored peaks. Additionally, humidity values will drop from late Wednesday through Friday as the air mass continues to dry out resulting in elevated fire weather concerns. However, widspread critical fire weather conditions are not anticipated at this time.

Additionally, a building northwest swell moving toward the California coast will produce large breaking waves and coastal run- up from Wednesday morning into midday Thursday. Thus, a High Surf Advisory is in effect for all west and northwest facing coastal areas from 6 AM Wednesday through 12 PM Thursday. Folks are urged to maintain a safe distance from the surf and remain off jetties. Never turn your back to the ocean!

As winds begin to diminish by Friday and into the upcoming weekend, temperatures in the interior valleys will begin to cool more rapidly at night under the influence of the dry air mass. Thus, looking for cooler overnight/morning conditions with the potential for freezing temperatures in the interior valleys beginning as early as Friday morning and then again Saturday morning. Both overnight and daytime temperatures moderate slightly by a few degrees heading into early next week as high pressure to the south builds northward. Dry weather conditions are likely to continue heading into the start of December as the storm track remains to our north.

AVIATION. As of 10:13 PM PST Tuesday . For the 06z TAFs. It's VFR except fog and low clouds /VLIFR-MVFR/ continue developing on the coast and inland, through radiational cooling and arriving by wind advection. A cold front over NorCal is moving southeast 30-35 mph and will move over the forecast area late tonight and early Wednesday morning. Surface winds converging along the cold front will also increase areal coverage of VLIFR-MVFR conditions through tonight, possibly generating spotty light rain tonight to isolated showers in the post frontal air mass Wednesday. Guidance doesn't show gusty winds tonight or Wednesday, however given the coupling of mid-lower level dynamics, moderate speed and slope of the incoming front winds may briefly pick up to around 25 or 30 knots with frontal passage. Lower level winds will be gusty over the coastal waters with gusty winds overlapping Sonoma, Marin, possibly San Francisco and San Mateo Counties tonight; amended KSTS and KSFO to include low level wind shear tonight/Wednesday morning. Post frontal diurnal mixing should help mitigate any potential for low level wind shear Wednesday. Drier conditions Wednesday and Wednesday night for VFR at the terminals.

Vicinity of KSFO . MVFR, west to northwest wind near 10 knots late tonight and Wednesday morning, TAF has vicinity showers. The 18z/00z NAM output show spotty light rain/drizzle tonight and Wednesday morning KSFO to KOAK to KSJC. Amended TAF to include low level wind shear 12z-18z Wednesday. If mixing around frontal passage is robust, surface winds may briefly become gusty to 20-30 knots without a lower level temperature inversion in place. Momentum transfer of gusty NW winds aloft can reach the surface more easily without an inversion and when moderate or strong mid level dynamics accompany a front.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . MVFR-LIFR in fog and low clouds increasing in coverage and advancing inland tonight. Mixing will lift ceilings and visibilities to MVFR-VFR overnight and Wednesday morning with spotty light rain/drizzle possible. VFR forecast Wednesday afternoon and evening.

MARINE. as of 9:10 PM PST Tuesday . A cold front will move over the coastal waters and bays late tonight and Wednesday morning. The cold front will bring a slight chance of showers mainly over the northern waters early Wednesday morning. Gusty northwest winds will generate steep fresh swell hazardous for small craft vessels. These winds are expected to continue through Thanksgiving. A large long period swell train will arrive early Wednesday morning and taper off by Friday. Large surf midday Wednesday into midday Thursday may lead to additional hazards for small craft vessels.

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



PUBLIC FORECAST: RGass AVIATION/MARINE: Canepa

Visit us at www.weather.gov/sanfrancisco

Follow us on Facebook, Twitter, and YouTube at: www.facebook.com/nwsbayarea www.twitter.com/nwsbayarea www.youtube.com/nwsbayarea


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 13 mi52 min SW 5.1 G 7 52°F 1020.6 hPa (+0.6)
RCMC1 - 9414863 - Richmond, CA 14 mi52 min WNW 1.9 G 2.9 54°F 56°F1021.1 hPa (+0.7)
TIBC1 - Tiburon Pier, San Francisco Bay, CA 15 mi41 min Calm 52°F 1021 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 16 mi52 min S 5.1 G 6 55°F 1021.6 hPa (+0.7)
UPBC1 21 mi52 min W 5.1 G 7
FTPC1 - 9414290 - San Francisco, CA 21 mi52 min WSW 5.1 G 8 52°F 56°F1021.5 hPa (+0.6)
MZXC1 - 9415102 - Martinez-Amorco CA 21 mi52 min WNW 2.9 G 5.1 53°F 56°F1020.8 hPa (+0.6)
PXSC1 22 mi52 min 53°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 22 mi52 min WSW 5.1 G 6 52°F 1020.3 hPa (+0.6)
OKXC1 - 9414776 - Oakland (Berth 34), CA 22 mi52 min ESE 1.9 G 2.9 52°F 1021.4 hPa (+0.5)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 23 mi52 min WSW 2.9 G 5.1
OBXC1 23 mi52 min 53°F 52°F
46237 - San Francisco Bar, CA (142) 24 mi52 min 55°F6 ft
PCOC1 - 9415144 - Port Chicago, CA 25 mi52 min SW 11 G 12 51°F 56°F1020.4 hPa (+0.4)
LNDC1 25 mi52 min ESE 1.9 G 2.9 53°F 1021.4 hPa (+0.4)
AAMC1 - 9414750 - Alameda, CA 26 mi52 min W 4.1 G 5.1 53°F 56°F1021.6 hPa (+0.4)
SFXC1 - San Francisco Bay Reserve, CA 26 mi67 min W 9.9
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 30 mi32 min NW 12 G 14 53°F1022 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 33 mi52 min WNW 5.1 G 7 54°F 1020.3 hPa (+1.0)
RTYC1 - 9414523 - Redwood City, CA 44 mi52 min ESE 1.9 G 2.9 51°F 58°F1022.3 hPa (+0.3)
46013 - Bodega Bay - 48NM North Northwest of San Francisco, CA 44 mi32 min NW 18 G 27 53°F 52°F1021.1 hPa49°F

Wind History for Richmond, CA
(wind in knots)    EDIT      (on/off)   Help
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
Last
24hr
NW2
NW2
N2
NW2
W2
NW2
SE1
S2
S4
SE2
G5
SE3
G8
S8
G11
S7
S5
S7
G11
S6
SW1
N2
W3
S3
W2
NW6
G9
W3
NW2
1 day
ago
NW4
NW7
W4
W4
NW5
NW4
NW2
NW1
SE2
S2
G5
S4
S4
G8
SE6
S3
NW2
NW6
NW5
NW4
NW3
NW2
SE1
--
NW3
W2
2 days
ago
N4
NW5
NW1
N4
NW5
E2
G5
SE2
SE3
SE3
G6
S8
SW8
G11
NW6
NW8
G11
NW10
NW6
N2
N3
NW3
S4
SE6
SE3
SE4
G7

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Novato / Gnoss Field, CA4 mi77 minN 00.15 miFog43°F42°F100%1021 hPa
Petaluma Municipal Airport, CA12 mi57 minN 00.75 miFog/Mist41°F41°F100%1021.3 hPa
Napa, Napa County Airport, CA14 mi58 minN 00.75 miFog/Mist41°F39°F96%1020 hPa

Link to 5 minute data for KDVO

Wind History from DVO (wind in knots)
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
Last 24hrCalmCalmCalmCalmCalmCalm3SE3SE44E5SE6SE4SW5E3E3NE4CalmCalmN3CalmNE7CalmCalm
1 day agoCalmCalmCalmCalmCalmCalmN5N7NW6NE6CalmW9SW6SW5
G11
SW4E4CalmCalmCalmCalmNE3CalmCalmCalm
2 days agoCalmCalmCalmS3--CalmN4N3N10N105SW7SW943CalmCalmCalmS4CalmNE4NE7Calm4

Tide / Current Tables for Petaluma River entrance, San Pablo Bay, California
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Petaluma River entrance
Click for Map
Wed -- 02:31 AM PST     Moonset
Wed -- 03:42 AM PST     1.08 feet Low Tide
Wed -- 07:02 AM PST     Sunrise
Wed -- 09:45 AM PST     5.90 feet High Tide
Wed -- 02:48 PM PST     Moonrise
Wed -- 04:51 PM PST     Sunset
Wed -- 04:55 PM PST     0.98 feet Low Tide
Wed -- 10:15 PM PST     4.53 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
3.22.41.61.21.11.62.63.74.95.75.95.54.83.72.71.71.211.32.23.24.14.54.4

Tide / Current Tables for Petaluma River Approach, San Pablo Bay, California Current
   EDIT      (on/off)   Help   One Week of Data
Petaluma River Approach
Click for Map
Wed -- 12:28 AM PST     -0.65 knots Max Ebb
Wed -- 02:31 AM PST     Moonset
Wed -- 03:30 AM PST     0.00 knots Slack
Wed -- 06:41 AM PST     0.73 knots Max Flood
Wed -- 07:01 AM PST     Sunrise
Wed -- 10:05 AM PST     -0.01 knots Slack
Wed -- 01:24 PM PST     -0.80 knots Max Ebb
Wed -- 02:48 PM PST     Moonrise
Wed -- 04:43 PM PST     0.00 knots Slack
Wed -- 04:51 PM PST     Sunset
Wed -- 07:18 PM PST     0.51 knots Max Flood
Wed -- 10:12 PM PST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
-0.6-0.6-0.5-0.20.20.50.70.70.60.40-0.3-0.6-0.8-0.8-0.6-0.20.10.40.50.50.30.1-0.3

Weather Map
       (on/off)   Help Weather Map
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
Ground Weather Radar Station Sacramento, CA
   (on/off)   Help
weather_mapweather_map weather_map


Cookie Policy:
This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. Google supplies the ads on this site. Because I do not track who you are, I cannot customize how these ads are served. They may be personalized to improve the ad experience. If you do not want personalized ads, please adjust the settings on the Google site HERE. NOTE: The best I can determine, this site is not subject to CCPA but I am doing my best to comply anyway.
Disclaimer:
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.