Tuesday, December10, 2019
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Marine Weather and Tides
Lake Wildwood, 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 7:13AMSunset 4:45PM Tuesday December 10, 2019 4:35 PM PST (00:35 UTC) Moonrise 3:56PMMoonset 5:31AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 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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7 Day Forecast for Marine Location Near Lake Wildwood, CA
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location: 39.25, -121.21     debug


Area Discussion for - Sacramento, CA
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FXUS66 KSTO 102302 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 302 PM PST Tue Dec 10 2019

SYNOPSIS. Rain returns to the region tonight tapering to a few light showers on Wednesday. Widespread precipitation expected later in the week and into the weekend. Drier weather Sunday and early next week.

DISCUSSION. After the morning fog in the Valley, much of the low cloud deck was slow to erode. Now the clouds associated and ahead of the frontal band along the coast are moving into our area and will spread over the Sierra early this evening. It has been a sunny, seasonably pleasant day in the Sierra as the higher elevations were above the fog and well to the east of the advancing cloud deck from the west for most of the day. But that will change this evening.

The frontal system will move into the region, spreading light rain over much of our CWA beginning late this afternoon and continuing into the evening. Radar echoes along the Nrn CA coast this morning are now moving onshore at press time, and the timing of the upper trof suggests the frontal precip should end by Wed morning as the trof moves through our region. Satellite trends suggest a brief period of clearing early Wed morning as the trof passes, followed by an increase in cloud cover during the day. Behind the trof, heights rebuild on Wed as a ridge axis slides across the region. Some light sprinkles or showers are still possible mainly in the Nrn part of our CWA on Wed, where WAA (about 7 deg C/12hr in the 850-700 mbs layer) could result in some light precip.

An increase in precip is forecast over Norcal Wed nite and Thu as a strong 150kt Pac jet south of the GOA (Gulf of AK) low reaches the coast and focuses a +3 PW anomaly into our CWA. The U.S. West Coast AR Tool shows that a "weak" AR (TPW/moisture plume) along 140W will make "landfall" during this time (late on 12/11 and into 12/12). Rising 5H heights will steer the storm track and main dynamics a little farther N and into the Pac NW. But the strong WAA Wed nite and Thu (over 5 deg C/12 hr in the 850-700 mbs layer) will interact with the moisture plume resulting in steady precip over Norcal, mainly over the Nrn mtns and areas N of I-80. An inch or so of precip is forecast over Shasta Co during this time, with amounts tapering off rapidly Swd to the I-80 corridor. South of I-80, only a few hundredths are expected as the storm track shifts Nwd.

Looks as if it will be a little wetter in our CWA on Fri from earlier forecasts as 5H heights begin to fall slowly as the GOA trof emerges from its source region. This will keep the TPW plume over our CWA through the day. Comparing our QPF with the ECMWF ensembles we are generally a little low/light on the QPF and we made a last minute upward adjustment this afternoon . but still we may be a little too light. The bulk of the precip is still forecast over the Sierra.

Snow levels will be rising Wed nite and Thu to 8Kft or so limiting winter travel impacts, until they lower below the passes Fri nite. JHM

EXTENDED DISCUSSION (Saturday THROUGH Tuesday).

By Saturday morning expect ongoing precipitation mainly over the mountains and foothills, although a few lingering showers may be possible in the Valley. Snow levels will range from 4-5kft Saturday, although snowfall accumulations themselves will only be a few inches. Some minor mountain travel impacts are anticipated Saturday due to this lingering precipitation. Models have trended a bit later to bring dry weather back to the area, as a few light lingering snow showers will be possible through Sunday morning.

Upper level ridging builds into the area Sunday and Monday. Mostly clear skies and average temperatures are expected early next week. Ensemble guidance shows the potential for another system to impact NorCal Tuesday, although confidence with this system remains low at this time.

AVIATION.

Deteriorating conditions expected as a system moves across northern California tonight. Light rain is expected at RDD/RBL between 04-06Z, spreading south towards Sacramento terminals shortly after. MVFR/IFR conditions likely overnight at these sites, with possible LIFR conditions returning to southernmost terminals.

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 84 mi111 min ESE 6 55°F 1023 hPa48°F
PCOC1 - 9415144 - Port Chicago, CA 93 mi48 min ENE 8.9 G 9.9 54°F 54°F1022.5 hPa

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Nevada County Air Park, CA11 mi61 minN 010.00 miMostly Cloudy48°F42°F82%1022.3 hPa
Marysville, Beale Air Force Base, CA14 mi98 minSW 610.00 miMostly Cloudy55°F46°F74%1023.3 hPa
Marysville, Yuba County Airport, CA21 mi43 minWSW 38.00 miFair52°F46°F83%1024.1 hPa
Auburn Municipal Airport, CA21 mi61 minN 07.00 miPartly Cloudy50°F48°F94%1023 hPa

Link to 5 minute data for KGOO

Wind History from GOO (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm3Calm56CalmCalmCalm
1 day agoCalmN3CalmNE4NE4CalmNE4E6E5E6E5CalmCalmCalmE4E4SE3CalmCalmCalmCalm3SW4Calm
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CalmCalm53CalmSE5E4CalmSE6CalmCalmCalmCalm

Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
Click for Map
Tue -- 01:36 AM PST     -0.04 feet Low Tide
Tue -- 05:31 AM PST     Moonset
Tue -- 06:15 AM PST     2.14 feet High Tide
Tue -- 07:12 AM PST     Sunrise
Tue -- 12:34 PM PST     0.67 feet Low Tide
Tue -- 03:58 PM PST     Moonrise
Tue -- 04:44 PM PST     Sunset
Tue -- 05:03 PM PST     3.11 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.2-0-00.51.21.82.12.11.81.51.10.90.70.71.222.83.132.82.31.81.20.8

Tide / Current Tables for Clarksburg #4, Sacramento River, California
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Clarksburg #4
Click for Map
Tue -- 12:06 AM PST     -0.04 feet Low Tide
Tue -- 05:06 AM PST     2.14 feet High Tide
Tue -- 05:30 AM PST     Moonset
Tue -- 07:12 AM PST     Sunrise
Tue -- 11:04 AM PST     0.67 feet Low Tide
Tue -- 03:54 PM PST     3.11 feet High Tide
Tue -- 03:59 PM PST     Moonrise
Tue -- 04:45 PM PST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-00.10.71.41.92.121.81.410.80.70.81.42.32.93.132.72.21.61.10.60.2

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 (19,4,5,8)
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Ground Weather Radar Station Beal AFB, 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.