Sunday, January26, 2020
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Marine Weather and Tides
Dunnigan, 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 5:22PM Sunday January 26, 2020 5:59 AM PST (13:59 UTC) Moonrise 8:41AMMoonset 7:16PM Illumination 2% Phase: Waxing Crescent; Moon at 1 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- 206 Am Pst Sun Jan 26 2020
Today..W winds 5 to 15 kt. A chance of rain this morning.
Tonight..W winds 5 to 15 kt.
Mon..W winds up to 10 kt.
Mon night..W winds 5 to 10 kt.
Tue..SW winds 5 to 10 kt. A slight chance of rain.
Tue night..NW winds 5 to 10 kt.
Wed..NW winds up to 10 kt.
Thu..NW winds around 5 kt.
PZZ500 206 Am Pst Sun Jan 26 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... A weak frontal boundary is passing through the coastal waters this morning, with light sw winds ahead of the front and light to locally breezy nw winds in the wake of the front. The strongest winds will be along the big sur coast tonight into Monday. A long period west to northwest swell is arriving early today while. An additional long period northwest swell will arrive by early next week.


7 Day Forecast for Marine Location Near Dunnigan, CA
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location: 38.8, -121.96     debug


Area Discussion for - Sacramento, CA
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FXUS66 KSTO 261016 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 216 AM PST Sun Jan 26 2020

Synopsis. Weak storm moving through NorCal will bring high elevation snow this morning. The system moves east of the area by this evening. Light precipitation chances return late Monday through Tuesday for parts of the northern state. Otherwise dry conditions expected next week for most areas.

Discussion. Widespread precipitation continues across most of interior NorCal early this morning. Currently showers remain fairly light with rainfall rates mainly around 0.5 to 0.15 inch per hour with some moderate showers in the foothills and mountains with hourly rain rates up to 0.25 inch. 1:30 am radar indicates a heavier band of precipitation moving onshore in Sonoma and Marin counties. This will slowly move inland through the night, bringing periods of moderate rainfall to interior NorCal through early morning.

Snow level radar indicates snow levels remain high, around 8000 to 8500 feet, and Caltrans webcams confirm that main precipitation type falling over the mountain passes is rain. Snow levels are expected to begin falling below pass level to around 6500 to 7000 feet within the next few hours, generally just before sunrise. Only around 1 to 4 inches of snow is expected at pass level as snow levels will fall after the period of heaviest precipitation.

Showers continue through the afternoon for the far eastern Valley up to the mountains, tapering off by the evening. A slight chance remains for post-frontal thunderstorms late this morning through the afternoon, mainly for the foothills and portions of the northern and far eastern Sacramento Valley. However, forcing is pretty weak, so stronger cells may only produce a rumble or two of thunder, heavier rainfall, and some small hail.

Upper level ridging builds overnight through Monday with warm air advection bringing a chance of light showers to the Shasta County area Monday. Then ensembles continue to show the southern edge of a weather system moving through the PacNW will clip NorCal late Monday night through Tuesday as the upper low slides southeast from the PacNW through the Great Basin area. Precipitation chances will mainly be limited to the northern Sacramento Valley, the Coastal Range, and the mountains north of Highway 50. Light precipitation accumulations are forecast at a few hundredths of an inch up to 0.25 inch of liquid precipitation and little snowfall expected.

Upper level ridging builds once again on Wednesday, bringing dry weather to interior NorCal through the rest of the week. Fog formation will also be possible most nights and mornings this week in the Central Valley. HEC

EXTENDED DISCUSSION (Thursday THROUGH Sunday). Strong upper ridging will result in dry weather with temperatures well above average for late January/early February. Potential for areas of night and morning valley fog.

AVIATION. Widespread MVFR with local IFR conditions thru about 20Z-22Z as Pacific frontal system moves across NorCal. Isolated thunderstorms possible 18Z-00Z. Improving conditions expected by 00Z. Local southerly surface wind gusts 15-25 kts until 18Z.

STO WATCHES/WARNINGS/ADVISORIES. None.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SFXC1 - San Francisco Bay Reserve, CA 42 mi74 min WSW 5.1
PCOC1 - 9415144 - Port Chicago, CA 52 mi59 min 51°F
RCMC1 - 9414863 - Richmond, CA 65 mi59 min 53°F

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sacramento International Airport, CA20 mi66 minS 90.75 miLight Rain Fog/Mist55°F54°F96%1019.5 hPa
University Airport, CA21 mi79 minS 72.00 miOvercast55°F53°F94%1020 hPa

Link to 5 minute data for KSMF

Wind History from SMF (wind in knots)
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Last 24hrCalmCalmE3CalmCalmSE4SE3S3S4S5SW6S8S5SE6SE9SE9S7SE8S9SE10S10S9S7S9
1 day agoCalmS7S5CalmS5NW4NW9NW4NW6NW7N8NW6N5N5NW5N3N3NW4NW3CalmCalmSW3CalmCalm
2 days agoCalmNE3N3N3NE3N3CalmW4CalmCalmNW4CalmCalmCalmNE3CalmCalmCalmSE3CalmS3CalmSE3SE8

Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
Click for Map
Sun -- 03:53 AM PST     -0.08 feet Low Tide
Sun -- 07:16 AM PST     Sunrise
Sun -- 08:38 AM PST     Moonrise
Sun -- 08:51 AM PST     2.71 feet High Tide
Sun -- 03:31 PM PST     0.86 feet Low Tide
Sun -- 05:20 PM PST     Sunset
Sun -- 07:14 PM PST     Moonset
Sun -- 07:25 PM PST     3.04 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.20.70.30-0.10.31.11.92.52.72.62.21.81.41.10.90.91.62.4332.82.42

Tide / Current Tables for Clarksburg #4, Sacramento River, California
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Clarksburg #4
Click for Map
Sun -- 02:24 AM PST     -0.08 feet Low Tide
Sun -- 07:16 AM PST     Sunrise
Sun -- 07:42 AM PST     2.71 feet High Tide
Sun -- 08:38 AM PST     Moonrise
Sun -- 02:01 PM PST     0.86 feet Low Tide
Sun -- 05:21 PM PST     Sunset
Sun -- 06:16 PM PST     3.04 feet High Tide
Sun -- 07:15 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.2-0.100.61.32.12.62.72.52.11.71.310.91.11.92.6332.82.31.81.2

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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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 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.