Sunday, January19, 2020
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Marine Weather and Tides
Valley Springs, 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 7:17AMSunset 5:14PM Sunday January 19, 2020 1:43 AM PST (09:43 UTC) Moonrise 2:25AMMoonset 1:03PM Illumination 33% Phase: Waning Crescent; Moon at 24 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- 905 Pm Pst Sat Jan 18 2020
Tonight..E winds 5 to 15 kt.
Sun..NE winds 5 to 15 kt.
Sun night..NE winds 5 to 15 kt.
Martin luther king jr day..E winds up to 10 kt. A slight chance of rain.
Mon night..S winds 10 to 20 kt with gusts up to 25 kt. Rain.
Tue..S winds 10 to 20 kt with gusts up to 25 kt. Rain.
Tue night..W winds around 5 kt.
Wed..NW winds around 5 kt.
Thu..NW winds around 5 kt.
PZZ500 905 Pm Pst Sat Jan 18 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... High pressure over the great basin will maintain generally light to moderate offshore winds across the coastal waters through Sunday. Winds will turn southerly and increase by Monday morning ahead of an approaching frontal system. A moderate northwest swell will arrive late Saturday and Sunday while a larger northwest swell arrives the middle of next week.


7 Day Forecast for Marine Location Near Valley Springs, CA
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location: 38.15, -120.8     debug


Area Discussion for - Sacramento, CA
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FXUS66 KSTO 190653 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 1050 PM PST Sat Jan 18 2020

SYNOPSIS. Some fog possible in portions of the Central Valley and mountain valleys tomorrow morning. Otherwise mostly dry and mild over the weekend. Precipitation chances return next week.

DISCUSSION. The Evening Update: Considerable high cloudiness continues to spread over the CWA masking any opportunity to discern the underlying lower cloud deck. Will have to rely on METARS only to monitor the stratus/fog situation overnite. HREF probability of cloud ceiling less than 1 kft forecasts a high probability of said clouds forming from SAC area Swd into the Nrn SJV including SCK and MOD, along with high probabilities of less than 1 mile VIS in the same general area. The HREF forecasts generally lift/erode the stratus deck after 2 pm and improve the VSBY after noon to 1 pm, depending on location. JHM

Previous Discussion. Morning fog in the San Joaquin has lifted into a stratus layer this afternoon. We should see that stratus layer break up some as we head into the evening. Elsewhere we are seeing passing high clouds. Short wave ridging will continue into Sunday with passing high clouds. Fog is expected to develop once again overnight despite the cloud cover. Overall the coverage will be patchy but is expected to be more widespread down into the San Joaquin Valley. Mid level clouds will be building on Sunday as we see a short wave trough approach from the west and have weak warm air advection. This short wave will end up getting phased into a long wave trough over the Pacific on Monday but will bring overcast skies for us on Monday.

A more impactful system is expected later Monday into Tuesday as the long wave trough pushes into the PacNW. A cold front will push into the western part of the area late Monday and sweep through the area Tuesday morning into the afternoon. Widespread rain and snow is expected out a head of the cold front Tuesday. Snow levels look to be between 4500 and 5500 feet with the majority of the accumulating snow staying above 5000 feet. Snow amounts are expected to between 4-12" with higher amounts over the higher peaks. This will be enough snow to bring mountain travel impacts. Things will be drying out by Tuesday night as the trough pushes to the east but we will see lingering mountain showers into Wednesday morning.

-CJM

EXTENDED DISCUSSION (Wednesday THROUGH Saturday). In the wake of the early week system, a progressive ridge will swing through mid-week bringing a period of dry weather to the region. The longwave pattern slightly amplifies offshore which brings a slight chance for showers each day to parts of the Coastal Range and Shasta County mountains. Embedded shortwaves in this flow appear to be weak so not expecting widespread precipitation through the conclusion of the work week. Overall high and low temperatures slowly rise to around 2 to 6 degrees above average. Global ensembles show a return of wet weather for portions of the West Coast, possibly extending down into northern California. Confidence is low given disagreement among the ensemble means as well as a relatively complex pattern to resolve over the Pacific. Stay tuned as details become more clear. ~BRO

AVIATION. VFR conditions next 24 hours, except for periods of MVFR conditions, locally IFR/LIFR, mainly south of KMYV mainly after 06Z due to BR/FG.

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 65 mi59 min N 1.9
PCOC1 - 9415144 - Port Chicago, CA 66 mi56 min 49°F
AAMC1 - 9414750 - Alameda, CA 84 mi56 min 52°F

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
COLUMBIA, CA22 mi49 minN 010.00 miFair39°F39°F100%1024 hPa

Link to 5 minute data for KO22

Wind History from O22 (wind in knots)
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Last 24hrCalmCalmNE4CalmCalmCalmCalmCalmCalmCalmCalmCalm3SW4SW4CalmCalmCalmCalmCalmCalmCalm3Calm
1 day ago44CalmCalmCalmCalmCalmCalm44343CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
2 days agoCalmCalmCalmCalm3CalmCalm69
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Calm----CalmCalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Bishop Cut, Disappointment Slough, San Joaquin River, California
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Bishop Cut
Click for Map
Sun -- 01:39 AM PST     2.78 feet High Tide
Sun -- 02:28 AM PST     Moonrise
Sun -- 07:00 AM PST     0.78 feet Low Tide
Sun -- 07:19 AM PST     Sunrise
Sun -- 01:06 PM PST     Moonset
Sun -- 01:28 PM PST     4.03 feet High Tide
Sun -- 05:13 PM PST     Sunset
Sun -- 08:56 PM PST     0.07 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.32.72.82.41.91.30.90.811.52.33.13.7443.62.92.21.40.80.30.10.30.9

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 -- 02:14 AM PST     -0.00 knots Slack
Sun -- 02:27 AM PST     Moonrise
Sun -- 04:54 AM PST     -0.36 knots Max Ebb
Sun -- 07:18 AM PST     Sunrise
Sun -- 07:48 AM PST     0.00 knots Slack
Sun -- 10:46 AM PST     0.75 knots Max Flood
Sun -- 01:06 PM PST     Moonset
Sun -- 02:31 PM PST     -0.00 knots Slack
Sun -- 05:13 PM PST     Sunset
Sun -- 06:18 PM PST     -0.56 knots Max Ebb
Sun -- 09:59 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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0.40.30.1-0.2-0.3-0.4-0.3-0.20.10.50.70.70.70.50.2-0.1-0.3-0.5-0.6-0.5-0.4-0.200.3

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 (4,6,7,8)
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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.