Thursday, June4, 2020
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Marine Weather and Tides
Coloma, 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 5:38AMSunset 8:26PM Thursday June 4, 2020 8:43 PM PDT (03:43 UTC) Moonrise 6:29PMMoonset 3:54AM 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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PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 827 Pm Pdt Thu Jun 4 2020
.small craft advisory in effect through Friday evening...
Tonight..S winds 10 to 20 kt with gusts up to 25 kt.
Fri..SW winds 15 to 25 kt with gusts up to 35 kt.
Fri night..SW winds 10 to 20 kt with gusts up to 30 kt.
Sat..W winds 10 to 20 kt with gusts up to 25 kt.
Sat night..W winds 10 to 20 kt with gusts up to 25 kt.
Sun..W winds 10 to 20 kt with gusts up to 25 kt.
Sun night..W winds 10 to 15 kt with gusts up to 25 kt.
Mon..W winds 5 to 15 kt.
Tue..W winds 5 to 15 kt.
PZZ500 827 Pm Pdt Thu Jun 4 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Breezy northwest winds will persist across the coastal waters tonight and tomorrow. The strongest winds are anticipated over the northern waters north of point reyes. These winds will generate steep fresh swell resulting in hazardous seas conditions for small crafts. Mixed seas will continue with a shorter period northwest swell and a longer period southwest swell.


7 Day Forecast for Marine Location Near Coloma, CA
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location: 38.81, -120.92     debug


Area Discussion for - Sacramento, CA
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FXUS66 KSTO 042113 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 213 PM PDT Thu Jun 4 2020

Synopsis. Hot weather cools down tomorrow into the weekend. Chances for showers, thunderstorms, and light mountain snow this weekend. Dry and warmer weather expected to return Monday into mid-week.

DISCUSSION. The last day of Valley temperatures in the upper 90s and 100s is seen this afternoon before a cool down is expected Friday continuing through the weekend. A few high temperature records could still be broken or tied by early this evening, mainly around the Sacramento area and Modesto. The Heat Advisory continues through 8pm this evening, with overnight lows expected to be slightly cooler than those of previous nights (although still above average).

Friday highs will be about 10 to 15 degrees less than today as a trough works its way towards the west coast. The best chances for precipitation will be in the higher elevations Friday night into Saturday, with chances increasing into the northern Sacramento Valley and surrounding foothills Saturday afternoon and evening. Instability over northern California increases in the late afternoon which may lead to a few isolated thunderstorms across the northern portion of the CWA. Any storms may produce gusty winds and small hail. Precipitation shifts back over higher elevations overnight into Sunday. Overall, the southern Sacramento Valley looks to remain dry with some breezy winds.

Some light snow will also be possible late Saturday night through Sunday as snow levels rapidly fall during the day Saturday, reaching to around 5kft by early Sunday morning. The higher peaks may see some snow accumulation of a few inches, with light snow falling at pass levels which may create slick roads over the mountains.

Lingering mountain showers and snow showers continue Sunday, with a few isolated storms once again possible in the afternoon (mainly in the northern Sac valley and surrounding areas again). Conditions begin to clear Sunday night.

EXTENDED DISCUSSION (Monday THROUGH Thursday). Upper ridging builds into the area beginning Monday continuing through mid-week. This feature will act to warm temperatures through mid-week, with Valley highs reaching into the mid-90s again by Wednesday. A shortwave trough passes to the north of California Tuesday evening, although any precipitation is likely to stay north of Shasta County. Dry weather is expected through Thursday, although models do hint at a trough impacting the area late next week which may mitigate the rising temperatures.

AVIATION. VFR conditions for the TAF sites the next 24 hours. Winds will remain below 10 knots except in the Delta where gusts up to 20 knots will be possible.

STO WATCHES/WARNINGS/ADVISORIES. Heat Advisory until 8 PM PDT this evening for Carquinez Strait and Delta-Central Sacramento Valley-Motherlode-Mountains Southwestern Shasta County to Western Colusa County-Northeast Foothills/Sacramento Valley-Northern Sacramento Valley-Northern San Joaquin Valley-Southern Sacramento Valley.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SFXC1 - San Francisco Bay Reserve, CA 72 mi58 min W 5.1
PCOC1 - 9415144 - Port Chicago, CA 79 mi55 min WSW 8.9 G 9.9 82°F 74°F1003.4 hPa
RCMC1 - 9414863 - Richmond, CA 100 mi55 min S 8 G 11 63°F 66°F1005.1 hPa

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Auburn Municipal Airport, CA13 mi48 minN 010.00 miFair79°F51°F39%1006.1 hPa
Lincoln Regional Karl Harder Field, CA24 mi48 minN 010.00 miFair91°F50°F24%1002 hPa

Link to 5 minute data for KAUN

Wind History from AUN (wind in knots)
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Last 24hrCalmSE7E7E8E7E9E9E9E7E9E10E7CalmCalm3SW5CalmSW7Calm4SW7W5CalmCalm
1 day agoCalmCalmE7E7CalmE4E6E6E6E7E6E5CalmCalmCalmSW4W44SW7SW3CalmCalmCalmCalm
2 days agoCalmCalmCalmE3E8CalmE4CalmCalmCalmCalmE5SE3W4CalmCalmW6W8W5W7NW44CalmCalm

Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
Click for Map
Thu -- 01:19 AM PDT     0.41 feet Low Tide
Thu -- 04:56 AM PDT     Moonset
Thu -- 05:42 AM PDT     Sunrise
Thu -- 05:59 AM PDT     3.29 feet High Tide
Thu -- 02:53 PM PDT     -0.29 feet Low Tide
Thu -- 07:31 PM PDT     Moonrise
Thu -- 07:31 PM PDT     2.33 feet High Tide
Thu -- 08:26 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.40.51.22.233.33.22.82.31.71.10.60.1-0.2-0.30.10.91.72.32.32.11.71.3

Tide / Current Tables for Clarksburg #4, Sacramento River, California
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Clarksburg #4
Click for Map
Thu -- 04:50 AM PDT     3.29 feet High Tide
Thu -- 04:57 AM PDT     Moonset
Thu -- 05:42 AM PDT     Sunrise
Thu -- 01:23 PM PDT     -0.29 feet Low Tide
Thu -- 06:22 PM PDT     2.33 feet High Tide
Thu -- 07:31 PM PDT     Moonrise
Thu -- 08:26 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.71.52.43.13.33.12.72.11.50.90.4-0-0.3-0.20.41.21.92.32.321.61.10.8

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 (23,6,7,8)
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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.