Thursday, October19, 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 7:17AMSunset 6:20PM Thursday October 19, 2017 7:29 AM PDT (14:29 UTC) Moonrise 6:03AMMoonset 5:44PM Illumination 1% 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- 247 Am Pdt Thu Oct 19 2017
.small craft advisory in effect from this evening through late tonight...
Today..SW winds 10 kt.
Tonight..W winds 15 to 25 kt. Chance of rain.
Fri..W winds 5 to 15 kt.
Fri night..NW winds 5 to 15 kt.
Sat..NW winds 10 kt.
Sun..NW winds 5 kt.
Mon..N winds 5 kt.
PZZ500 247 Am Pdt Thu Oct 19 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... A cold front is forecast to pass through the region later this evening. Winds will increase along and just behind the front, occasionally gusting around 25 knots at times. Showers will be possible ahead of and along the cold front, as well. A very robust northwest, long period swell will arrive late this afternoon and through the evening, generating large waves and hazardous seas through at least Saturday. Operators of small crafts are urged to use extreme caution if out at sea over the next several days.

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 191122
afdsto
area forecast discussion
national weather service sacramento ca
422 am pdt Thu oct 19 2017

Synopsis
Increasing clouds and cooler temperatures today. Rain chances
along with high mountain snow and gusty winds this evening and
Friday. This will be followed by a warming trend early next week
with above normal temperatures through the week.

Discussion
Pacific frontal system now moving into the pacific northwest will
be moving into northwest california this afternoon. Increasing
cloud cover and increased onshore flow along with airmass cooling
will bring 10 degrees or more of cooling today. By this afternoon
the coastal range will see a chance of light rain. Southwest flow
aloft and orographics will bring a slight threat of showers over
the northern sierra and southern cascades. Main frontal band moves
through during the nighttime hours tonight will bring a good
chance of rain to most of the CWA with snow at the higher
elevations. Expected rainfall amounts in the valley range fairly
light at about 1 10th to 3 10ths of an inch. Orographics over the
sierra could squeeze out over an inch of precipitation. Tightest
surface pressure gradient will be this evening. Could see winds at
wind advisory criteria especially over the sierra cascade range
but the stronger winds will likely be relatively short lived.

Front shifts east of the CWA by Friday morning with shower threat
ending most locations. Upper troughing will continue to feed cool
air into the region so highs on Friday will range from 10 to 15
degrees below normal. Upper ridging begins to build over the
eastern pacific Friday afternoon with continued ridging on
Saturday. Disturbances slipping over this ridge will bring a
threat of showers to the northern zones through Saturday. Clearer
skies and warming airmass will bring daytime highs up to close to
normal for this time of year by Sunday afternoon. This warming
trend will continue going in to next week.

.Extended discussion (Monday through Thursday)
upper level ridge persists next week maintaining a dry and warm
pattern for our cwa. Daytime highs will range 6-14 degrees above
normal during the extended forecast period. Valley highs will stay
in the low to mid 80s while mountain highs range 60s and 70s. Jbb

Aviation
Vfr conditions with light winds... Local hz fu MVFR visibility is
possible in the delta and surrounding terminals this morning.

Valley and ridge winds will increase this afternoon, especially
over the ridgetops and north sacramento valley. Gusts at TAF sites
could range between 15-25 kts in the afternoon evening hours, then
decrease after 06z. Precipitation will move into interior norcal
around 00z and impact TAF sites through Friday morning with MVFR
ceilings possible at times. Jbb

Sto watches warnings advisories
Winter weather advisory from 11 pm this evening to 11 am pdt
Friday for west slope northern sierra nevada.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SFXC1 - San Francisco Bay Reserve, CA 72 mi104 min W 7 55°F 1014 hPa51°F
PCOC1 - 9415144 - Port Chicago, CA 79 mi41 min SW 8.9 G 13 56°F 62°F1014.7 hPa
RCMC1 - 9414863 - Richmond, CA 100 mi41 min SSW 4.1 G 6 56°F 59°F1015.4 hPa

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Auburn Municipal Airport, CA13 mi34 minESE 510.00 miFair54°F0°F%1014.2 hPa
Lincoln Regional Karl Harder Field, CA24 mi34 minSSE 1210.00 miFair54°F46°F77%1013.5 hPa

Wind History from AUN (wind in knots)
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Last 24hrE4CalmE5E4S3SW4SW4SW5W6SW5W4SW3CalmSE3E4E7E8E8SE9SE9E6SE9SE8SE7
1 day agoE5E6E4E5CalmW5W5SW4W6W6W4W3CalmCalmCalmE6E6CalmCalmE5E5E3E4E6
2 days agoE6E5E5CalmNW3NW3W6W6W5W4CalmCalmCalmCalmE4E6CalmCalmE8E4E6E8E5E7

Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
Click for Map
Thu -- 03:04 AM PDT     0.06 feet Low Tide
Thu -- 07:04 AM PDT     Moonrise
Thu -- 07:19 AM PDT     Sunrise
Thu -- 07:29 AM PDT     2.56 feet High Tide
Thu -- 12:12 PM PDT     New Moon
Thu -- 03:02 PM PDT     0.23 feet Low Tide
Thu -- 06:21 PM PDT     Sunset
Thu -- 06:46 PM PDT     Moonset
Thu -- 07:39 PM PDT     2.91 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
10.50.20.10.41.122.52.52.31.91.410.60.30.20.51.32.22.82.92.72.31.8

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

Thu -- 03:03 AM PDT     0.06 feet Low Tide
Thu -- 07:04 AM PDT     Moonrise
Thu -- 07:19 AM PDT     Sunrise
Thu -- 07:29 AM PDT     2.57 feet High Tide
Thu -- 12:12 PM PDT     New Moon
Thu -- 03:02 PM PDT     0.24 feet Low Tide
Thu -- 06:21 PM PDT     Sunset
Thu -- 06:46 PM PDT     Moonset
Thu -- 07:39 PM PDT     2.92 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
10.50.20.10.41.122.52.52.31.91.410.60.30.20.51.32.22.82.92.72.31.8

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 (10,2,3,4)
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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.