Friday, January19, 2018 L-36.com


Marine Weather and Tides
Antioch, 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 7:18AMSunset 5:17PM Thursday January 18, 2018 9:48 PM PST (05:48 UTC) Moonrise 8:21AMMoonset 6:59PM Illumination 6% Phase: Waxing Crescent; Moon at 2 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 San Francisco Bay North Of The Bay Bridge- 903 Pm Pst Thu Jan 18 2018
Tonight..W winds 5 to 15 kt. Chance of showers.
Fri..W winds 10 kt. Slight chance of Thunderstorms in the morning, then slight chance of showers in the afternoon.
Fri night..NW winds 5 to 15 kt. Slight chance of showers in the evening.
Sat..NW winds 5 to 15 kt.
Sat night..W winds 5 to 15 kt.
Sun..S winds 10 to 20 kt. Chance of rain, then rain likely.
Mon..N winds 10 kt. Chance of rain, then slight chance of showers.
Tue..SE winds 10 kt. Slight chance of rain, then chance of rain.
PZZ500 903 Pm Pst Thu Jan 18 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... A large, long period west swell will continue to impact the waters overnight and into Friday, bringing hazardous seas to the coastal waters. Additionally, the coastline will see large breaking waves and high surf associated with the large swell. A cold front will slowly pass through the waters through the evening and overnight hours, bringing with it a chance of rain.

7 Day Forecast for Marine Location Near Antioch, CA
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location: 38.03, -121.82     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 182321
afdsto
area forecast discussion
national weather service sacramento ca
321 pm pst Thu jan 18 2018

Synopsis
Active weather pattern continues with a storm system moving
through the area into Friday, bringing mountain snow and valley
rain. A weaker cold storm system is expected Sunday into Monday,
bringing accumulating snow in the mountains. Another system
arrives mid week.

Discussion
A cold front with the main frontal band of precipitation is
moving across northern california. This band is currently north of
i80, but will spread precipitation across the rest of the area by
early evening. Cold air behind the front will drop snow levels
rather quickly. This is already happening at shasta dam, where
snow levels were over 8000 feet this morning, down to 5400 feet at
shasta dam at 2 pm. Snow levels around donner pass have been
around 8000 feet, but will drop overnight, lowering to around
2500-3500 feet by early Friday.

A band of stronger convection could bring a period of heavy rain
and some lightning early this evening over shasta county.

Snow totals have lowered some, to around 8 to 12 inches for the
northern sierra through Friday. The heaviest snowfall is expected
this evening through early Thursday morning as the front exits the
area. Travel for the i-80 and us 50 corridors will become
slippery. Gusty southwest winds 30 to 50 mph with gusts to around
65 mph over ridges when combined with snow could bring poor
visibility. Winter storm warning continues for the northern sierra
and mountains of western plumas and lassen county, with a winter
weather advisory for the mountains southwestern shasta county to
northern lake county, through 4 pm Friday.

The precipitation will become more showery Friday, gradually
tapering off through the day. There is a slight chance of
afternoon thunderstorms over the northern and central sacramento
valley. A short wave ridge of high pressure will develop Saturday
with the potential for clearing skies before the next weather
making system arrives Sunday.

The next system arrives Sunday, spreading precipitation across the
area. Heaviest amounts of snow are expected over the northern
mountains, where 6 to 12 inches are currently projected through
Monday. The northern sierra is expected to see lighter amounts,
more in the 2 to 5 inch range. Ek
.Extended discussion (Monday through Thursday)
the weather system that moves in on Sunday will move out of the
area on Monday. Showers could linger throughout the day, but
models have decreased the expected precipitation for Monday.

Valley locations could see a few hundredths up to a tenth of an
inch of new precipitation, with only slightly more precipitation
likely for the mountains. Snow levels will remain low, around 4000
to 5500 feet. Mountain locations could expect half an inch to an
inch of new snow.

After Monday, the forecast becomes more uncertain. The wet pattern
is expected to continue with another winter storm possible
around midweek, though models differ on timing and impacts of this
system. For now, the system is forecast to move into the forecast
area on Tuesday and impact the area through Thursday. Models
currently depict the storm track a bit farther north with this
system. As such, areas north of interstate 80 will bear the brunt
of this system. Hec

Aviation
MVFR ifr conditions, local ifr, due to low ceilings br through
the evening. Precipitation continues to spread southeast through
Thursday with ifr conditions over the sierra, and MVFR ifr
conditions in the central valley. Could see a few gusts to 20 kts
in the northern valley, higher gusts over the mountains.

Sto watches warnings advisories
Winter storm warning until 4 pm pst Friday for west slope
northern sierra nevada-western plumas county lassen park.

Winter weather advisory from 7 pm this evening to 4 pm pst
Friday for mountains southwestern shasta county to northern lake
county-shasta lake area northern shasta county.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 4 mi48 min WNW 7 G 9.9 52°F 1017 hPa
PCOC1 - 9415144 - Port Chicago, CA 12 mi48 min WSW 7 G 9.9 51°F 52°F1017.1 hPa (+0.7)
MZXC1 - 9415102 - Martinez-Amorco CA 16 mi48 min W 4.1 G 5.1 52°F 52°F1017.4 hPa (+0.8)52°F
SFXC1 - San Francisco Bay Reserve, CA 16 mi63 min WNW 7 51°F 1016 hPa49°F
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 24 mi48 min W 7 G 9.9 52°F 1017.3 hPa
LNDC1 29 mi48 min W 2.9 G 5.1 53°F 1017.6 hPa (+0.6)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 30 mi48 min WSW 1.9 G 2.9 54°F 1017.9 hPa (+0.8)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 31 mi48 min WSW 8 G 9.9
AAMC1 - 9414750 - Alameda, CA 31 mi48 min W 4.1 G 6 53°F 55°F1017.7 hPa (+0.6)
OKXC1 - 9414776 - Oakland (Berth 34), CA 31 mi48 min W 5.1 G 7 53°F 1017.7 hPa (+0.7)
RCMC1 - 9414863 - Richmond, CA 32 mi48 min Calm G 1.9 53°F 54°F1017.4 hPa (+0.8)
OBXC1 32 mi48 min 53°F 51°F
PXSC1 34 mi48 min 54°F 51°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 34 mi48 min WNW 1.9 G 2.9 53°F 1016.7 hPa (+0.6)
FTPC1 - 9414290 - San Francisco, CA 38 mi48 min SSW 1 G 1.9 51°F 54°F1017.9 hPa (+0.5)
RTYC1 - 9414523 - Redwood City, CA 42 mi48 min SW 1.9 G 7 52°F 56°F1018.3 hPa (+0.9)
46237 - San Francisco Bar, CA (142) 46 mi48 min 54°F13 ft

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA13 mi55 minN 010.00 miOvercast54°F50°F87%1015.8 hPa
Fairfield / Travis Air Force Base, CA18 mi1.8 hrsSW 1310.00 miLight Rain51°F51°F100%1016.6 hPa
Livermore, Livermore Municipal Airport, CA23 mi55 minWSW 112.00 miFog/Mist50°F48°F93%1017.5 hPa

Wind History from CCR (wind in knots)
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Last 24hrCalmCalmS7SW6CalmSE5SE5S3SW7S5E3CalmCalmNW4SW9SW12
G26
--SW6SW64NW6NW7W8Calm
1 day agoCalmCalmCalmCalmCalmSE3CalmCalmCalmCalmS3CalmN6CalmN6NE4NE5NE3N6N4NE4NE3CalmNW6
2 days agoCalmNW5CalmNW4N4CalmNW56NE4NE4NE3CalmCalmNE5NE6NE8NE4NE6E3CalmCalmCalmCalmCalm

Tide / Current Tables for Antioch, San Joaquin River, California
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Antioch
Click for Map
Fri -- 05:47 AM PST     3.29 feet High Tide
Fri -- 07:20 AM PST     Sunrise
Fri -- 08:57 AM PST     Moonrise
Fri -- 11:04 AM PST     1.56 feet Low Tide
Fri -- 04:14 PM PST     3.87 feet High Tide
Fri -- 05:16 PM PST     Sunset
Fri -- 07:56 PM PST     Moonset
Fri -- 11:44 PM PST     -0.03 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
00.51.32.12.83.23.33.12.62.11.71.61.72.22.93.53.93.83.32.71.810.40.1

Tide / Current Tables for Antioch Pt .3 mi E, San Joaquin River, California Current
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Antioch Pt .3 mi E
Click for Map
Fri -- 01:32 AM PST     0.01 knots Slack
Fri -- 04:47 AM PST     1.42 knots Max Flood
Fri -- 07:20 AM PST     Sunrise
Fri -- 07:54 AM PST     -0.00 knots Slack
Fri -- 08:57 AM PST     Moonrise
Fri -- 10:14 AM PST     -0.74 knots Max Ebb
Fri -- 01:03 PM PST     0.00 knots Slack
Fri -- 03:52 PM PST     1.36 knots Max Flood
Fri -- 05:16 PM PST     Sunset
Fri -- 06:16 PM PST     -0.00 knots Slack
Fri -- 07:56 PM PST     Moonset
Fri -- 09:44 PM PST     -1.85 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1-0.40.411.31.41.20.7-0.1-0.5-0.7-0.7-0.5-00.61.21.410.2-0.5-1.3-1.7-1.8-1.7

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 (0,6,7,8)
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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.