Sunday, May31, 2020
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Marine Weather and Tides
Placerville, 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 5:39AMSunset 8:23PM Sunday May 31, 2020 1:36 PM PDT (20:36 UTC) Moonrise 1:38PMMoonset 1:42AM Illumination 73% Phase: Waxing Gibbous; Moon at 10 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- 832 Am Pdt Sun May 31 2020
Today..SW winds 5 to 15 kt. Gusts up to 25 kt this afternoon.
Tonight..SW winds 5 to 15 kt with gusts up to 25 kt.
Mon..SW winds 10 to 20 kt with gusts up to 25 kt.
Mon night..SW winds 5 to 10 kt.
Tue..SW winds 5 to 15 kt.
Tue night..SW winds up to 10 kt.
Wed..SW winds 5 to 15 kt.
Thu..SW winds 5 to 15 kt.
PZZ500 832 Am Pdt Sun May 31 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Northwest winds will gradually increase over the coastal waters through Monday. A mixed northwest and southwest swell will continue in the coastal waters through much of the week.


7 Day Forecast for Marine Location Near Placerville, CA
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location: 38.73, -120.8     debug


Area Discussion for - Sacramento, CA
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FXUS66 KSTO 311045 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 345 AM PDT Sun May 31 2020

Synopsis. Threat of showers and afternoon thunderstorms will continue over the Sierra Nevada through the upcoming week. Warming trend with high temperatures climbing to 10 to 15 degrees above normal by Tuesday.

DISCUSSION. Upper troughing along 130W will send embedded disturbances across interior NorCal later today into this evening. Models generate some precip over the higher elevations of the Sierra during this period. Otherwise dry weather expected across the CWA today with varying amounts of cloudiness. High temperatures forecast to be near normal with low to mid 80s in the Central Valley.

Upper troughing develops closed low off the SoCal coast Monday while higher latitude portion progresses into the PacNW. Interior NorCal becomes setup under upper level COL. Afternoon precip threat not only includes the higher elevations of the Sierra Nevada Monday, but also over portions of the Shasta mountains. A few degrees of warming expected tomorrow.

Closed upper low remains quasistationary off the SoCal coast Tue and Wed as zonal flow sets up across the PacNW. Mid level southerly divergent flow into the southern CWA will keep a threat of afternoon deep moist convection over the Sierra Nevada. Forecast CAPE values support the potential for afternoon thunderstorms over that area. Decreasing cloudiness over remainder of interior NorCal with height/thickness rises will raise high temperatures upwards of 10 to 15 degrees above normal. Mid to upper 90s expected in the Central Valley Tue/Wed with 70s to around 90 for the mountains and foothills.

PCH

EXTENDED DISCUSSION (Thursday THROUGH Sunday). High temperatures about 10 degrees above normal continue on Thursday as Four Corners ridging extends into NorCal. This means highs in mid to upper 90s for the Valley, foothills mid 80s to mid 90s, mountains in the 60s to around 80. Heat Risk levels will be at Moderate levels for those sensitive to heat. Anyone planning be outdoors should avoid the hottest period of the day.

Ensembles and deterministic models continue to show a cutoff low just off the southern California coast gradually moving inland late Thursday into Friday. Embedded shortwaves along the northern portion of the low could produce mountain shower and thunderstorm chances on Thursday, but these should be limited mainly to the Sierra south of I-80.

Ensembles continue indicate a trough approaching from the Gulf of Alaska Friday. GEFS and EPS continue to show cooling trend, with high temperatures near normal levels. There is also a chance of precipitation by later Friday for the northern mountains, with some showers potential still lingering over the Sierra south of I-80. The best potential for showers is on Saturday, focused over the northern mountains, but could extend through much of the Sacramento Valley and into the Sierra. The weekend looks relatively cool, similar to what we just saw this past weekend. EK

AVIATION. VFR conditions at TAF sites expected, with light winds. Winds through the Carquinez Strait may gust to around 20 kt.

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 75 mi52 min W 8.9
PCOC1 - 9415144 - Port Chicago, CA 81 mi49 min W 12 G 15 67°F 70°F1014.4 hPa

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Auburn Municipal Airport, CA22 mi42 minVar 310.00 miA Few Clouds72°F57°F61%1014.9 hPa

Link to 5 minute data for KAUN

Wind History from AUN (wind in knots)
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S5E5E5CalmE5E3E6E6E6CalmCalmE5E7E6E4CalmCalmCalmW3Calm4W5
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S6CalmCalmE4CalmCalmE4E44SW4
2 days agoSW6W5CalmW4CalmCalmCalmCalmE4E6E10E7E8E6E6CalmE7E7NE4CalmW5CalmS3S8

Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
Click for Map
Sun -- 02:44 AM PDT     Moonset
Sun -- 03:30 AM PDT     2.52 feet High Tide
Sun -- 05:43 AM PDT     Sunrise
Sun -- 10:58 AM PDT     0.43 feet Low Tide
Sun -- 02:41 PM PDT     Moonrise
Sun -- 03:00 PM PDT     2.17 feet High Tide
Sun -- 08:24 PM PDT     Sunset
Sun -- 10:57 PM PDT     -0.01 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.61.42.12.52.52.31.91.51.10.70.50.40.71.422.22.11.91.510.60.30.1-0

Tide / Current Tables for Clarksburg #4, Sacramento River, California
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Clarksburg #4
Click for Map
Sun -- 02:21 AM PDT     2.52 feet High Tide
Sun -- 02:44 AM PDT     Moonset
Sun -- 05:44 AM PDT     Sunrise
Sun -- 09:28 AM PDT     0.43 feet Low Tide
Sun -- 01:51 PM PDT     2.17 feet High Tide
Sun -- 02:41 PM PDT     Moonrise
Sun -- 08:23 PM PDT     Sunset
Sun -- 09:27 PM PDT     -0.01 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.62.22.52.52.21.81.30.90.60.50.50.91.622.22.11.81.30.90.50.2000.5

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 (16,3,4,5)
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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 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.