Monday, February24, 2020
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Marine Weather and Tides
Sheridan, 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 6:44AMSunset 5:52PM Sunday February 23, 2020 11:56 PM PST (07:56 UTC) Moonrise 7:12AMMoonset 6:03PM Illumination 0% Phase: New Moon; 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- 850 Pm Pst Sun Feb 23 2020
Tonight..NW winds 5 to 15 kt.
Mon..W winds up to 10 kt.
Mon night..NW winds up to 10 kt.
Tue..SW winds up to 10 kt.
Tue night..SW winds around 5 kt.
Wed..NE winds around 5 kt.
Wed night..NW winds around 5 kt.
Thu..N winds up to 10 kt.
Fri..NW winds around 5 kt.
PZZ500 850 Pm Pst Sun Feb 23 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... High pressure building off the northern california coast will bring gusty northwest winds through Monday. Winds will decrease after Monday night as a ridge builds from the high into the great basin.


7 Day Forecast for Marine Location Near Sheridan, CA
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location: 38.97, -121.35     debug


Area Discussion for - Sacramento, CA
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FXUS66 KSTO 240647 AAA AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 1045 PM PST Sun Feb 23 2020

Synopsis. Dry weather. A slight cool down today then a return to well above normal temperatures this week.

Discussion. The Evening Update: Nly gradients beginning to increase this evening as the dry cold front moves over Norcal. MFR-RDD gradient has increased to 6+ mbs near its max value for this modest Nly wind event. Behind the front, surface high pressure will build across ORE and into NV increasing Nly and Ely pressure gradients tonight and through Tue morning. A modest Nly barrier jet is forecast to develop on the W side of the Sac Vly and into the Golden Gate gap beginning Mon morning thru Tue morning. Gusts during this time are forecast to reach 25-30 kts on the W side of the Vly. Late Mon nite and Tue morning, the Ely gradients will support a katabatic wind down the W side of the Sierra affecting the SW-NE oriented canyons, i.e. Jarbo Gap. Doubling the 925 mbs winds gives an estimate of a peak gust up to 40 kts in the wind favored areas. A very warm stretch of wx is forecast this week (10-20 deg above average) with possible record max temps Thu in the Nrn Sac Vly and Wed-Fri in the Srn Sac and Nrn SJ Valleys.

Addendum: With the developing Nly flow down the W side of the Sac Vly any low clouds are forecast by the HREF to occur on the E side of the Nrn San Joaquin Vly Mon morning. JHM

Previous Discussion. Cooler temperatures today with temperatures running 5 to 10 degrees lower than yesterdays values at 2 pm. The cooler temperatures will be short lived as high pressure rebuilds over the region Monday through Wednesday. This will bring a warming trend each day through Wednesday with temperatures warming 10 to 15 degrees above normal each day. Models are indicating some possible low clouds forming in the San Joaquin Valley late tonight and early morning. Any that form should clear fairly early in the morning as the northerly winds increase and drier air moves into the region.

Northerly flow will develop in the valley and primarily easterly flow for the Sierra Nevada starting tonight. Winds do not look to be strong each day but some local gusty winds Monday night for some of the favored places in the Sierra Nevada will be possible. Weaker gradients across the Sierra Nevada Tuesday night will bring the return of lighter winds.

EXTENDED DISCUSSION (Thursday THROUGH Sunday).

Dry and mild conditions will continue late this week under upper level ridging. Highs will be around 10 to 20 degrees above average for late February, with Valley temperatures in the mid to upper 70s. There are signs that the ridge may break down next weekend as a system drops south from the Gulf of Alaska into the region. Therefore, cooling will be possible by next weekend, with at least some light precipitation on Sunday. Best chances appear to be over the mountains.

AVIATION.

VFR conditions the next 24 hours except for local MVFR/IFR ceilings possible in the northern San Joaquin Valley early Monday morning. Local northerly surface wind gusts 15-20 kts in the Valley after 18Z Monday.

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 64 mi71 min SW 2.9
PCOC1 - 9415144 - Port Chicago, CA 73 mi56 min SSW 4.1 G 7 51°F 54°F1028.1 hPa (+0.9)
RCMC1 - 9414863 - Richmond, CA 92 mi56 min NW 4.1 G 5.1 55°F 55°F1028.6 hPa (+1.1)

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lincoln Regional Karl Harder Field, CA4 mi61 minN 010.00 miFair41°F39°F93%1027.8 hPa
Marysville, Beale Air Force Base, CA13 mi2 hrsESE 310.00 miFair47°F42°F84%1027.7 hPa
Auburn Municipal Airport, CA14 mi81 minN 010.00 miFair45°F44°F100%1028.1 hPa
Marysville, Yuba County Airport, CA15 mi63 minN 010.00 miFair47°F43°F86%1028.6 hPa
Sacramento, McClellan Airfield Airport, CA21 mi61 minN 010.00 miFair48°F46°F94%1028.1 hPa
Sacramento International Airport, CA23 mi63 minN 09.00 miFair46°F43°F89%1027.8 hPa

Link to 5 minute data for KLHM

Wind History from LHM (wind in knots)
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Last 24hrSE8SE9E3E5S7SE8CalmCalmCalmCalmCalmCalmCalmCalmSW3SW3CalmCalmCalmCalmCalmCalmCalmCalm
1 day agoNE4CalmNW5SE4E4S4S4CalmE4CalmSE3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSE10SE8
2 days agoN3CalmNE3CalmNE4CalmNE3NW3NW3N6CalmCalmN7NW6NW8NW7NW7N6N3NE3NE3NE3N3N3

Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
Click for Map
Mon -- 03:20 AM PST     0.03 feet Low Tide
Mon -- 06:45 AM PST     Sunrise
Mon -- 07:39 AM PST     Moonrise
Mon -- 08:11 AM PST     2.78 feet High Tide
Mon -- 03:17 PM PST     0.65 feet Low Tide
Mon -- 05:53 PM PST     Sunset
Mon -- 07:02 PM PST     Moonset
Mon -- 07:21 PM PST     2.88 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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10.60.200.20.81.72.42.82.72.421.51.10.80.70.81.62.42.82.82.62.21.7

Tide / Current Tables for Clarksburg #4, Sacramento River, California
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Clarksburg #4
Click for Map
Mon -- 01:50 AM PST     0.03 feet Low Tide
Mon -- 06:45 AM PST     Sunrise
Mon -- 07:02 AM PST     2.78 feet High Tide
Mon -- 07:39 AM PST     Moonrise
Mon -- 01:47 PM PST     0.65 feet Low Tide
Mon -- 05:53 PM PST     Sunset
Mon -- 06:12 PM PST     2.88 feet High Tide
Mon -- 07:02 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.100.41.11.92.52.82.72.31.81.410.70.71.11.82.52.92.82.52.11.61

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 (2,6,7,8)
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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.