Saturday, February29, 2020
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Marine Weather and Tides
French Camp, 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 6:35AMSunset 5:59PM Saturday February 29, 2020 5:35 AM PST (13:35 UTC) Moonrise 9:51AMMoonset 11:47PM Illumination 34% Phase: Waxing Crescent; Moon at 6 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- 251 Am Pst Sat Feb 29 2020
.small craft advisory in effect from this afternoon through late tonight...
.small craft advisory in effect from Sunday afternoon through late Sunday night...
Today..W winds 5 to 15 kt, increasing to 15 to 20 kt with gusts up to 25 kt this afternoon.
Tonight..NW winds 15 to 25 kt with gusts up to 30 kt.
Sun..NW winds 10 to 20 kt with gusts up to 25 kt.
Sun night..N winds 20 to 30 kt with gusts up to 40 kt.
Mon..N winds 15 to 25 kt with gusts up to 35 kt.
Mon night..NW winds 5 to 10 kt.
Tue..NW winds up to 10 kt.
Wed..W winds up to 10 kt.
PZZ500 251 Am Pst Sat Feb 29 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... A trough and cold front moving into california will bring increasing northwest winds today through Sunday. Gale force gusts are expected today north of pigeon point as well as the big sur coast. Another pulse of northerly winds will arrive on Sunday, with gale- force winds expanding to most of the coastal waters. Gusts near storm force are possible over the northern outer waters on Sunday. Steep fresh swell from these winds will also create hazardous conditions on the waters. Winds will slowly decrease on Monday as the trough moves inland. A moderate long period northwest swell will move across the waters over the weekend.


7 Day Forecast for Marine Location Near French Camp, CA
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location: 37.87, -121.32     debug


Area Discussion for - Sacramento, CA
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FXUS66 KSTO 291134 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 334 AM PST Sat Feb 29 2020

Synopsis. A weather system will bring mountain and foothill snow, gusty winds, and cooler temperatures this weekend. Sierra travel will be impacted tonight due to periods of moderate snowfall. Dry and warmer early next week with breezy north to easterly winds.

Discussion. A surface cold front is moving through Northern California early this morning. This will bring cooler daytime temperatures to the area today with a temperature change of around 10 to 15 degrees from yesterday. Ensembles are still on track with a positively- tilted upper level trough deepening and moving through California this weekend. This trough will bring the return of precipitation to NorCal, though it will mainly be limited to the mountains and foothills. Precipitation will begin this afternoon over the souther Cascades as the lee side of the trough begins to move over NorCal, spreading south into the northern Sierra into the late afternoon and evening with periods of moderate snowfall possible. Precipitation will continue through the night, with showers likely to linger through Sunday morning. This will be a colder system with snow levels initially 5000-5500 feet, lowering rapidly overnight to around 2000-2500 feet by Sunday morning. However, the majority of snowfall is expected before the snow levels begin to drop, so only light accumulation is expected below 5000 feet. Model guidance has increased QPF slightly, so snow amounts have increased as well. Around 4 to 6 inches, locally up to 8 inches, are forecast at Sierra pass level. Since there has not been significant snowfall in quite a while, have decided to issue a Winter Weather Advisory in coordination with our neighbors from 4pm this afternoon through noon Sunday. Sierra travelers should prepare for periods of moderate snowfall, chain controls, and travel delays.

The trough axis is then forecast to slowly deepen and move south over California Sunday before slowly moving southeast Monday. Gusty north winds are expected Sunday as the surface pressure gradient tightens. The MFR-SAC gradient is forecast around 10-12 mb which will produce a decent wind event with Valley winds 20-30 mph with gusts up to 40-45 mph, especially over the northern and central Sacramento Valley. The strongest winds will be Sunday afternoon through evening before tapering off after 8pm. A Wind Advisory remains in effect from 10am to 8pm Sunday. Daytime temperatures will cool another 3 to 10 degrees Sunday with Valley highs in the upper 50s to low 60s and the mountains in the 20s to 30s.

Breezy conditions will continue through Monday as the upper trough continues to move southeast. Unfortunately, high pressure builds once again Monday into the week, bringing the return of dry weather and rising temperatures. Temperatures are forecast to quickly rise back to the upper 60s to low 70s in the Valley on Monday, and warming another few degrees Tuesday. HEC

EXTENDED DISCUSSION (Wednesday THROUGH Saturday). Above average temperatures, sunny skies and somewhat breezy conditions will persist through Thursday. Models are trending towards a cooler and more unsettled pattern by next weekend. Projections this far out are likely to change, however there is enough indication of some possible moisture moving into our area that the forecast includes some low precip chances by the end of the extended forecast period.

AVIATION. VFR conditions next 24 hours except for areas MVFR conditions vicinity scattered showers developing over the northern Sierra Nevada after 00Z Sunday. Local northerly surface wind gusts 10-15 kts in the Central Valley, and southwesterly 15-25 kts across higher terrain, developing after 18Z.

STO WATCHES/WARNINGS/ADVISORIES. Winter Weather Advisory from 4 PM this afternoon to noon PST Sunday for West Slope Northern Sierra Nevada-Western Plumas County/Lassen Park.

Wind Advisory from 10 AM to 8 PM PST Sunday for Central Sacramento Valley-Northern Sacramento Valley-Southern Sacramento Valley.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 32 mi54 min NW 8.9 G 12 55°F 1016.6 hPa
PCOC1 - 9415144 - Port Chicago, CA 40 mi48 min SW 4.1 G 8 50°F 56°F1016.7 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 44 mi48 min WSW 7 G 9.9 53°F 57°F1017.1 hPa
SFXC1 - San Francisco Bay Reserve, CA 44 mi111 min W 6
UPBC1 44 mi48 min W 8.9 G 12
AAMC1 - 9414750 - Alameda, CA 52 mi48 min WSW 8 G 11 52°F 59°F1018 hPa

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Stockton, Stockton Metropolitan Airport, CA5 mi41 minNNW 510.00 miFair52°F44°F75%1015.7 hPa

Link to 5 minute data for KSCK

Wind History from SCK (wind in knots)
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Last 24hrE3CalmCalmS33----NW343W3W5W10NW8NW7NW9NW7NW5W5W5CalmW7CalmN5
1 day agoCalmW5NW6W3CalmCalmNW33CalmNW3NW3CalmN4W3SW3CalmCalmCalmCalmCalmSE5CalmCalmCalm
2 days agoCalmCalmCalmSE4S3SE4SE5S6CalmSW4CalmW6W6W5W4W3W5W4NW3SW3W4CalmCalmNE3

Tide / Current Tables for Borden Highway Bridge, San Joaquin River, San Joaquin River, California
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Brandt Bridge, San Joaquin River, California Current
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Brandt Bridge
Click for Map
Sat -- 02:56 AM PST     -0.74 knots Max Ebb
Sat -- 06:22 AM PST     0.00 knots Slack
Sat -- 06:37 AM PST     Sunrise
Sat -- 08:58 AM PST     0.68 knots Max Flood
Sat -- 09:50 AM PST     Moonrise
Sat -- 11:42 AM PST     -0.00 knots Slack
Sat -- 03:14 PM PST     -0.92 knots Max Ebb
Sat -- 05:58 PM PST     Sunset
Sat -- 07:44 PM PST     0.00 knots Slack
Sat -- 10:05 PM PST     0.38 knots Max Flood
Sat -- 11:46 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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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 Sacramento, CA (8,2,3,4)
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Ground Weather Radar Station Sacramento, CA
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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.