Saturday, June24, 2017 L-36.com


Marine Weather and Tides
Bethel Island, CA

Version 3.4
What's New / NOTES
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 5:44AMSunset 8:34PM Saturday June 24, 2017 3:26 AM PDT (10:26 UTC) Moonrise 5:33AMMoonset 8:15PM Illumination 0% Phase: New Moon; Moon at 0 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- 854 Pm Pdt Fri Jun 23 2017
.small craft advisory in effect until 11 pm pdt this evening...
.small craft advisory in effect from Saturday afternoon through Saturday evening...
Tonight..SW winds 15 to 25 kt...decreasing to 10 to 20 kt by midnight. Patchy fog after midnight.
Sat..SW winds 10 to 20 kt...increasing to 15 to 25 kt in the afternoon. Patchy fog in the morning.
Sat night..SW winds 15 to 25 kt...decreasing to 10 to 20 kt.
Sun..SW winds 15 to 25 kt.
Sun night..SW winds 15 to 25 kt.
Mon..SW winds 10 to 20 kt.
Tue..SW winds 10 to 20 kt.
Wed..SW winds 10 to 20 kt.
PZZ500 854 Pm Pdt Fri Jun 23 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... An upper level weather disturbance off the southern california coast will move north tonight, potentially producing isolated Thunderstorms over the southern coastal waters late tonight and Saturday. Otherwise, light southerly winds will continue over the coastal waters tonight before turning westerly and northwesterly and increasing slightly by Saturday afternoon. Wave heights and swell will decrease through the coming days.

7 Day Forecast for Marine Location Near Bethel Island, CA
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location: 38.01, -121.64     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 232200
afdsto
area forecast discussion
national weather service sacramento ca
300 pm pdt Fri jun 23 2017

Synopsis
Hot again Saturday except some cooling in the delta, southern
half of the sacramento valley, and northern san joaquin valley.

More significant cooling for the remainder of interior norcal
expected Sunday into early next week. Isolated afternoon evening
thunderstorms possible over the mountains through Sunday.

Discussion
Strong high pressure ridging continues over the west coast keeping
the heat wave going over interior norcal. Moderate flow through
the carquinez strait with marine layer around 1200 feet has
resulted in some minor cooling in the central sacramento and
northern san joaquin valleys, with more significant cooling in the
delta and southern sacramento valley. Afternoon temperatures
around the delta and into the sacramento area running upwards of
5 to 15 degrees cooler and thus will be dropping heat related
products for these areas. Satellite imagery showing some CU tcu
beginning to develop over southern portions of our sierra nevada
attm and may lead to an isolated shower or thunderstorm late in
the day.

Delta breeze expected to continue moderate to strong overnight
into Saturday bringing additional cooling to areas influenced by
it. Remainder of interior norcal expected to see similar
temperatures Saturday with excessive heat warning likely to
continue for the northern and central sacramento valley. High
pressure from the desert SW builds NE towards the epac high,
turning mid level flow more sely on Saturday. This could extend
the threat of afternoon thunderstorms from the sierra nevada to
also include the coastal range.

Upper ridging weakens over norcal Sunday and shifts east as closed
upper low off the ca coast deepens and approaches. This should
help deepen the marine layer and strengthen onshore flow. Some
synoptic cooling will also result and expect around a 3 to 8
degree drop in MAX temperatures. Threat of isolated afternoon
thunderstorms continues over the sierra nevada Sunday and possibly
along the coastal range as some models hint at vort MAX lifting
across that area in southerly flow aloft.

Cooling continues on Monday as weakening upper troughing shifts
inland over norcal. Main dynamics look to remain northwest and
north of our CWA for any potential deep moist convection threat.

High temps on Monday forecast to be back in the 90s throughout
the central valley.

Pch
.Extended discussion (Tuesday through Friday)
additional cooling expected on Tuesday as weak trough moves
across the area. From Wednesday into Thursday, our CWA will sit
between the trough to our east and high pressure over the pacific.

With no significant changes in the weather pattern, high
temperatures will range within a few degrees of normal in the
extended forecast. Valley highs will be in the 90s, delta region
in the 80s, higher terrain in the 70s and 80s. Jbb

Aviation
Vfr conditions expected at the TAF sites the next 24 hours.

Isolated thunderstorms possible over sierra this afternoon near
yosemite. Southwest winds up to 20 kt through the delta...

otherwise winds generally around 6-12 kts for TAF sites.

Sto watches warnings advisories
Heat advisory until 11 pm pdt Saturday for central sacramento
valley-clear lake southern lake county-motherlode-mountains
southwestern shasta county to northern lake county-northeast
foothills sacramento valley-northern san joaquin valley-shasta
lake area northern shasta county-west slope northern sierra
nevada-western plumas county lassen park.

Excessive heat warning until 11 pm pdt this evening for central
sacramento valley-northern sacramento valley.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 13 mi38 min WNW 18 G 24 62°F 1010.5 hPa
PCOC1 - 9415144 - Port Chicago, CA 21 mi38 min WSW 17 G 22 59°F 71°F1012.3 hPa
SFXC1 - San Francisco Bay Reserve, CA 24 mi101 min W 14 60°F 1011 hPa56°F
UPBC1 26 mi38 min W 17 G 20
MZXC1 - 9415102 - Martinez-Amorco CA 26 mi38 min W 13 G 17 59°F 68°F1013.2 hPa59°F
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 33 mi38 min WSW 9.9 G 13 60°F 1013 hPa
LNDC1 37 mi38 min WSW 5.1 G 7 58°F 1013.8 hPa
AAMC1 - 9414750 - Alameda, CA 39 mi38 min WNW 4.1 G 6 58°F 66°F1014.3 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 39 mi38 min S 4.1 G 6 59°F 1014 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 39 mi38 min W 5.1 G 8 58°F 1013.9 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 39 mi38 min W 8 G 12
OBXC1 40 mi38 min 58°F 57°F
RCMC1 - 9414863 - Richmond, CA 41 mi44 min SSW 2.9 G 7 58°F 62°F1013.5 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 43 mi38 min W 4.1 G 8 57°F 1012.8 hPa
PXSC1 43 mi38 min 58°F 57°F
TIBC1 - Tiburon Pier, San Francisco Bay, CA 44 mi39 min S 7 57°F 1014 hPa
RTYC1 - 9414523 - Redwood City, CA 46 mi38 min NNW 6 G 8.9 61°F 75°F1013.2 hPa
FTPC1 - 9414290 - San Francisco, CA 46 mi44 min W 1.9 G 8 56°F 56°F1014.1 hPa

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Stockton, Stockton Metropolitan Airport, CA22 mi31 minNNW 710.00 miFair68°F57°F68%1010.4 hPa
Concord, Buchanan Field, CA22 mi33 minW 610.00 miFair61°F55°F81%1011.4 hPa
Livermore, Livermore Municipal Airport, CA23 mi33 minNW 79.00 miFair59°F55°F87%1012.5 hPa
Fairfield / Travis Air Force Base, CA24 mi28 minSW 26 G 3310.00 miFair and Windy58°F54°F85%1010.1 hPa

Wind History from CCR (wind in knots)
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Last 24hrW5W4W5NW7W6NW10NW10NW10NW13NW14NW12NW13
G18
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1 day agoN3CalmNW4CalmCalmCalmN4CalmCalm4NW6NW7NW12NW14W13SW11SW8W5SW3S3NW5NW6W8W6
2 days agoSW11NW3S10NW4S7W4NW5NW10--W7NW9NW11NW14NW12W12N8N5N3NW4NW4N7NW6CalmCalm

Tide / Current Tables for Davis Slough, San Joaquin River, California
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Davis Slough
Click for Map
Sat -- 04:24 AM PDT     4.05 feet High Tide
Sat -- 05:45 AM PDT     Sunrise
Sat -- 06:33 AM PDT     Moonrise
Sat -- 12:31 PM PDT     -0.61 feet Low Tide
Sat -- 06:35 PM PDT     2.91 feet High Tide
Sat -- 08:33 PM PDT     Sunset
Sat -- 09:14 PM PDT     Moonset
Sat -- 11:51 PM PDT     1.32 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.52.12.93.6443.62.921.10.4-0.2-0.6-0.6-0.10.81.72.42.82.92.62.11.71.4

Tide / Current Tables for West Island Lt .5 mi SE, San Joaquin River, California Current
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West Island Lt .5 mi SE
Click for Map
Sat -- 02:31 AM PDT     0.55 knots Max Flood
Sat -- 05:21 AM PDT     -0.01 knots Slack
Sat -- 05:45 AM PDT     Sunrise
Sat -- 06:33 AM PDT     Moonrise
Sat -- 09:09 AM PDT     -1.05 knots Max Ebb
Sat -- 01:30 PM PDT     0.01 knots Slack
Sat -- 04:45 PM PDT     0.41 knots Max Flood
Sat -- 07:40 PM PDT     -0.00 knots Slack
Sat -- 08:33 PM PDT     Sunset
Sat -- 09:15 PM PDT     Moonset
Sat -- 10:08 PM PDT     -0.37 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.10.40.50.50.40.1-0.3-0.7-1-1-1-0.9-0.6-0.20.10.30.40.40.30.1-0.1-0.3-0.4-0.3

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 (6,6,7,8)
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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.