Sunday, December8, 2019
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Marine Weather and Tides
Stockton, CA

Version 3.4
NOTICE
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:07AMSunset 4:47PM Sunday December 8, 2019 9:52 AM PST (17:52 UTC) Moonrise 2:53PMMoonset 3:27AM Illumination 89% Phase: Waxing Gibbous; Moon at 12 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- 838 Am Pst Sun Dec 8 2019
Today..SW winds up to 10 kt. A chance of rain this morning.
Tonight..N winds around 5 kt.
Mon..NW winds around 5 kt. Patchy fog.
Mon night..W winds up to 10 kt.
Tue..NE winds up to 10 kt.
Tue night..NE winds up to 10 kt.
Wed..NE winds around 5 kt.
Thu..NE winds around 5 kt.
PZZ500 838 Am Pst Sun Dec 8 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Scattered showers are seen this morning and expected to continue into the afternoon. Winds shift to the northwest by this afternoon and continue to weaken. Building high pressure will keep winds generally light to moderate through much of the week . A weak system will move through Tuesday night bringing back southerly winds to the waters along with the return of rain showers. Wind waves continue to ease as the winds diminish. A moderate west swell will continue through today before a northwest swell arrives on Monday and gradually builds throughout the coming week.


7 Day Forecast for Marine Location Near Stockton, CA
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location: 37.96, -121.29     debug


Area Discussion for - Sacramento, CA
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FXUS66 KSTO 081113 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 313 AM PST Sun Dec 8 2019

SYNOPSIS. Lingering rain and mountain snow showers remain in the forecast today, with drier weather returning late this evening. High pressure builds over the region on Monday, which will lead to a period of dry conditions and near average temperatures. More widespread precipitation could return late in the week.

DISCUSSION. Lingering rain and mountain snow showers are being observed on radar this morning. These conditions will continue as the upper low gradually exits the region. For the mountains, an extra 2-5 inches of snow will be possible for elevations above 5500ft. The Winter Storm Warning remains in effect through 1PM, but if showers start to dwindle earlier, we may be able to cancel it prior to then. For those traveling in the Sierra, be prepared for reduced visibilities, possible chain controls, and travel delays. Rainwise, the Valley and foothills will see an additional 0.0-0.50 inches of precip, locally higher where stronger showers and thunderstorms roll through. Once the low exits the region, high pressure and drier weather returns to interior NorCal. Fog looks to be quite possible later this evening and into the overnight hours. Light north winds may hinder fog growth in some areas, but with the residual moisture from the rain and clearing skies, fog seems likely.

For the start of the work week, look for partly to mostly sunny skies and near average temperatures. A rather weak shortwave enters the picture late Tuesday into Wednesday morning bringing a slight chance for showers up toward Shasta County and the far northern sections of the Coastal Range. Otherwise, expect clouds to be plentiful given the trough passage. KR/BRO

EXTENDED DISCUSSION (Thursday THROUGH Sunday).

Ensemble guidance continues indicate zonal flow across the eastern Pacific later in the week with ridging across NorCal. The pattern will bring the potential for light warm-advection precipitation across the northern mountains. By next weekend, models are showing a shortwave trough moving into the PacNW. Both the ECMWF ensemble and the GEFS have trended deeper with this system. Thus, precip chances could extend further south into the northern Sierra. Temps will be slightly above average.

AVIATION.

Widespread MVFR, with local IFR, in scattered showers through 18Z with conditions improving from the north as Pacific storm system gradually moves to the southeast. Isolated thunderstorms southeast of KSAC after 20Z. Local southerly surface wind gusts to 15-25 kts thru 18Z. Snow levels 5500-6500 ft.

STO WATCHES/WARNINGS/ADVISORIES. Winter Storm Warning until 1 PM PST this afternoon for West Slope Northern Sierra Nevada-Western Plumas County/Lassen Park.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 32 mi52 min ENE 1.9 G 2.9 55°F 1016.3 hPa (+1.4)
PCOC1 - 9415144 - Port Chicago, CA 40 mi52 min Calm G 1.9 55°F 53°F1016.1 hPa (+1.5)
SFXC1 - San Francisco Bay Reserve, CA 42 mi67 min SSE 1 54°F 1016 hPa
UPBC1 44 mi52 min NW 1.9 G 2.9
MZXC1 - 9415102 - Martinez-Amorco CA 45 mi52 min Calm G 1.9 54°F 54°F1016.4 hPa (+1.5)
AAMC1 - 9414750 - Alameda, CA 55 mi52 min W 4.1 G 5.1

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Stockton, Stockton Metropolitan Airport, CA4 mi57 minSSE 68.00 miMostly Cloudy57°F54°F90%1016.3 hPa

Link to 5 minute data for KSCK

Wind History from SCK (wind in knots)
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2 days agoSE4SE8SE12SE9S9S6SE6SE4E5E5NE4E3E4E5E5W4CalmSE3SE8W4CalmSE8SE7SE8

Tide / Current Tables for Stockton, 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 Vulcan Island .5 mi E, San Joaquin River, California Current
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Vulcan Island .5 mi E
Click for Map
Sun -- 01:32 AM PST     0.47 knots Max Flood
Sun -- 03:27 AM PST     Moonset
Sun -- 04:16 AM PST     -0.00 knots Slack
Sun -- 06:56 AM PST     -0.33 knots Max Ebb
Sun -- 07:08 AM PST     Sunrise
Sun -- 09:46 AM PST     0.00 knots Slack
Sun -- 12:45 PM PST     0.69 knots Max Flood
Sun -- 02:53 PM PST     Moonrise
Sun -- 04:12 PM PST     -0.00 knots Slack
Sun -- 04:45 PM PST     Sunset
Sun -- 07:49 PM PST     -0.54 knots Max Ebb
Sun -- 11:34 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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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 (12,3,4,5)
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Ground Weather Radar Station Sacramento, CA
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weather_mapweather_map weather_map

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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 numerious 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.