Wednesday, September20, 2017 L-36.com


Marine Weather and Tides
Coloma, CA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:49AMSunset 7:04PM Wednesday September 20, 2017 12:39 AM PDT (07:39 UTC) Moonrise 6:12AMMoonset 6:41PM Illumination 0% Phase: New Moon; Moon at 29 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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PZZ531 San Francisco Bay South Of The Bay Bridge- 906 Pm Pdt Tue Sep 19 2017
.small craft advisory in effect from Wednesday afternoon through late Wednesday night...
Tonight..W winds 10 to 20 kt.
Wed..W winds 10 to 20 kt...increasing to 15 to 25 kt in the afternoon.
Wed night..W winds 15 to 25 kt.
Thu..NW winds 15 to 25 kt.
Thu night..W winds 15 to 25 kt.
Fri..W winds 10 to 20 kt.
Sat..W winds 10 kt.
Sun..W winds 10 kt.
PZZ500 906 Pm Pdt Tue Sep 19 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Moderate to locally gusty northwesterly winds will persist across the coastal waters through tonight. Winds will ease a bit Wednesday morning before increasing once again Wednesday night. A long period northwest swell arrived earlier today and will persist through midweek.

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 200532
afdsto
area forecast discussion
national weather service sacramento ca
1030 pm pdt Tue sep 19 2017

Synopsis
Cooler weather this week with a chance of showers into Thursday.

Discussion
Leading edge of relatively warm cloud tops roughly from a lakeport
to near quincy line and moving steadily to the se. Cloud bases
generally at above 8kft and should lower to around 5 kft during the
day over most locales. Strongest shortwave energy still off the wa
coast and is progged to move into norcal late Wed afternoon when
showers should develop over the NRN mtns and then over the sierra
wed evening. Jhm

Previous discussion
Models are in good agreement that a deep upper level trough and
associated cold front will move across interior norcal. As a result,
expect precipitation chances later tonight through Thursday. The
best chance of precipitation will remain over the mountains and over
the northern sacramento valley. Forecast guidance indicates that
most locations will generally receive less than 0.2 inches of
precipitation, but some sierra locations could receive up to 0.35
inches.

The upper trough over the west coast will usher in cooler air
aloft. Thus, snow levels could be lowering to around 6500 feet,
although they could be lower in heavier showers. Current forecast
indicates that there could be some light accumulations of snow
late Wednesday night into Thursday over the mountains.

In addition, the air mass will cool as the upper level trough
deepens and reinforces cooler temperatures. Therefore, daytime
highs are expected to remain 10 to 22 degrees below normal for
this time of the year. The coolest day of the week should be
Thursday, with valley highs in the low to mid 70s.

By Friday, shower activity is expected to taper off as dry
northerly flow develops and the upper trough shifts eastward. As a
result, temperatures will trend upward slightly but will still
remain several degrees below normal.

.Extended discussion (Saturday through Tuesday)
high pressure returns to northern california this weekend with
dry conditions and a warming trend to the afternoon temperatures.

High temperatures Saturday will remain below normal, but
temperatures Sunday into early next week will return to normal or
slightly above normal. Breezy north and east valley and ridgetop
winds can be expected for the weekend and into next week.

Aviation
Vfr conditions for the valley terminals for the next
24 hours with light winds. Chances for light mountain rain
showers and increasing clouds tonight and Wednesday.

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 72 mi114 min W 2.9 59°F 1014 hPa53°F
PCOC1 - 9415144 - Port Chicago, CA 79 mi51 min SW 5.1 G 8.9 69°F1014.4 hPa
RCMC1 - 9414863 - Richmond, CA 100 mi51 min NW 8 G 9.9 66°F1014.9 hPa

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Auburn Municipal Airport, CA13 mi44 minN 010.00 miFair57°F57°F100%1014.9 hPa
Lincoln Regional Karl Harder Field, CA24 mi64 minESE 410.00 miFair54°F41°F63%1013.5 hPa

Wind History from AUN (wind in knots)
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Last 24hrSE8SE7E3CalmCalmE3CalmNW4CalmW4W7W7W11W10
G17
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G14
NW4NW6CalmCalmCalmCalmE5E4
1 day agoE7SE5SE7SE7SE3SE6SE7SE10SE10
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2 days agoE7E9E5E9E9E8E9E7CalmCalmSW4S5SW6S4W4W6S4W6SW3CalmCalmE3E6E6

Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
Click for Map
Wed -- 03:13 AM PDT     0.33 feet Low Tide
Wed -- 06:52 AM PDT     Sunrise
Wed -- 07:15 AM PDT     Moonrise
Wed -- 07:34 AM PDT     2.94 feet High Tide
Wed -- 03:40 PM PDT     0.07 feet Low Tide
Wed -- 07:05 PM PDT     Sunset
Wed -- 07:43 PM PDT     Moonset
Wed -- 08:21 PM PDT     2.90 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.30.80.50.30.51.32.32.82.92.72.31.81.20.80.40.10.10.61.52.42.92.82.62.1

Tide / Current Tables for Sacramento, Sacramento River, California
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Sacramento
Click for MapNote: These data apply only during low river stages.

Wed -- 03:13 AM PDT     0.33 feet Low Tide
Wed -- 06:52 AM PDT     Sunrise
Wed -- 07:14 AM PDT     Moonrise
Wed -- 07:34 AM PDT     2.95 feet High Tide
Wed -- 03:41 PM PDT     0.08 feet Low Tide
Wed -- 07:05 PM PDT     Sunset
Wed -- 07:43 PM PDT     Moonset
Wed -- 08:21 PM PDT     2.90 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.30.80.50.30.51.32.32.92.92.72.31.81.20.80.40.10.10.61.62.42.92.82.62.1

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of CentralWestCoast    EDIT
Geos

Wind Forecast for Sacramento, CA (3,6,7,8)
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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 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.