Monday, August21, 2017 L-36.com


Marine Weather and Tides
Shell Ridge, 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 6:28AMSunset 7:53PM Monday August 21, 2017 6:43 PM PDT (01:43 UTC) Moonrise 5:20AMMoonset 7:04PM 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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PZZ530 San Pablo Bay Suisun Bay The West Delta And San Francisco Bay North Of The Bay Bridge- 202 Pm Pdt Mon Aug 21 2017
.small craft advisory in effect until 9 pm pdt this evening...
Tonight..W winds 10 to 20 kt.
Tue..SW winds 10 to 20 kt.
Tue night..SW winds 10 to 20 kt.
Wed..SW winds 5 to 15 kt.
Wed night..SW winds 10 to 20 kt.
Thu..SW winds 5 to 15 kt.
Fri..SW winds 10 kt.
Sat..SW winds 10 kt.
PZZ500 202 Pm Pdt Mon Aug 21 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Weak low pressure over the coastal waters will continue to yield light to moderate winds through midweek. High pressure will develop for the second half of the week and cause the coastal pressure gradient to tighten. This is forecast to bring strong to near gale northerly winds and associated large steep seas. No long period swell is expected for the next 7 days.

7 Day Forecast for Marine Location Near Shell Ridge, CA
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location: 37.9, -122.03     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 220036
afdmtr
area forecast discussion
national weather service san francisco bay area
536 pm pdt Mon aug 21 2017

Synopsis Cooler than average temperatures, especially inland,
will persist through midweek with low clouds in the overnight and
early morning near the coast and in the valleys. An inland warming
trend is then likely late in the week and into the upcoming weekend
as high pressure builds back over the region.

Discussion As of 01:55 pm pdt Monday... Temperatures are
running up to 6 degrees cooler compared to 24 hours ago as low
clouds persist over the region. This is a result of the deep
marine layer holding on strong at more than 2,000 feet in depth.

While low clouds are finally clearing inland and from the south
off of the big sur coast, do expect a return of stratus again
overnight as a mid upper level low sits off of the southern
california coast. Overall, this will bring about temperatures that
are generally below seasonal averages through midweek.

By midweek and into the upcoming weekend high pressure centered over
the four corners region will begin to build toward the california
coast. This will result in a warming trend, especially for inland
areas, with temperatures rebounding back to or slightly above
seasonal averages. Look for more widespread 80s and 90s inland
during the afternoon hours under mostly sunny skies. This building
ridge will likely compress the marine layer as well with less inland
penetration of stratus late in the forecast period. Meanwhile,
coastal areas will likely remain in the 60s to 70s as onshore flow
persists.

Aviation As of 5:05 pm pdt Monday... For 00z tafs. Clearing
continues at the hour with ksts just having cleared over the north
bay. CIGS are anticipated to return early this evening under a
deep 2200 ft marine layer and moderate onshore flow. Also of note
is a line of clouds moving in from the east. Radar depicts a few
showers associated with these clouds however they are quickly
dissipating and not anticipated to bring showers to any terminals
at this time. Winds will remain light to moderate through this
evening then will gradually dissipate overnight.

Vicinity of ksfo...VFR conditions will prevail through early
evening then return around 04z tonight. BorderlineVFR MVFR cigs
expected through tonight with clearing anticipated around 18z
Tuesday morning. Light to moderate west winds will prevail.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals...VFR conditions will prevail through
late this afternoon with low clouds anticipated to return around
02z-03z tonight.VFR CIGS expected through tonight with clearing
anticipated around 19z Tuesday morning. Moderate west winds will
ease overnight becoming light.

MVFR ifr through through early afternoon.

There is a distinct chance that mry never breaks today. Sns should
see a bit of clearing by afternoon, but clouds will remain around
the area and come back early this evening.

Marine As of 05:16 pm pdt Monday... Weak low pressure over the
coastal waters will continue to yield light to moderate winds
through midweek. High pressure will develop for the second half of
the week and cause the coastal pressure gradient to tighten. This
is forecast to bring strong to near gale northerly winds and
associated large steep seas. No long period swell is expected for
the next 7 days.

Mtr watches warnings advisories
Tngt Sca... Sf bay until 9 pm
public forecast: rgass
aviation: cw
marine: bam
visit us at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MZXC1 - 9415102 - Martinez-Amorco CA 11 mi44 min WSW 12 G 16 68°F 69°F1015.8 hPa (-0.0)59°F
PCOC1 - 9415144 - Port Chicago, CA 11 mi44 min SW 12 G 15 70°F 69°F1015.3 hPa (-0.0)
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 12 mi44 min W 9.9 G 17 72°F 1014.6 hPa (-0.0)
LNDC1 15 mi44 min W 6 G 11 65°F 1016.2 hPa (+0.0)
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 16 mi44 min SW 13 G 17 67°F 1015.5 hPa (-0.0)
OKXC1 - 9414776 - Oakland (Berth 34), CA 17 mi44 min WNW 11 G 14 63°F 1016.3 hPa (+0.0)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 17 mi44 min W 11 G 13
AAMC1 - 9414750 - Alameda, CA 17 mi44 min WNW 7 G 11 66°F 69°F1016.7 hPa (+0.0)
OBXC1 18 mi44 min 64°F 60°F
PPXC1 - 9414847 - Richmond (Point Potrero), CA 18 mi44 min SW 11 G 15 66°F 1016.4 hPa (-0.3)
RCMC1 - 9414863 - Richmond, CA 20 mi44 min WNW 2.9 G 8 65°F 65°F1016.1 hPa (-0.0)
PXOC1 - 9414311 - San Francisco (Pier 1), CA 20 mi44 min W 8.9 G 17 64°F 1015.3 hPa (+0.0)
SFXC1 - San Francisco Bay Reserve, CA 21 mi59 min W 12 73°F 1014 hPa60°F
PXSC1 21 mi44 min 66°F 59°F
TIBC1 - Tiburon Pier, San Francisco Bay, CA 22 mi57 min WNW 6 64°F 1017 hPa
FTPC1 - 9414290 - San Francisco, CA 24 mi44 min W 4.1 G 8.9 62°F 62°F1016.8 hPa (-0.0)
RTYC1 - 9414523 - Redwood City, CA 29 mi44 min NW 11 G 13 69°F 73°F1015.3 hPa (-0.0)
46237 - San Francisco Bar, CA (142) 33 mi44 min 60°F4 ft
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 44 mi54 min SSW 3.9 G 3.9 61°F 62°F4 ft1016.8 hPa (-0.5)

Wind History for Union Pacific Rail Road Bridge (UPRR), CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA6 mi51 minSW 1210.00 miFair72°F57°F61%1014.3 hPa
Oakland, Metro Oakland International Airport, CA17 mi51 minWNW 1310.00 miPartly Cloudy67°F59°F76%1016 hPa
Hayward, Hayward Air Terminal, CA17 mi50 minNW 1210.00 miFair71°F55°F57%1016.6 hPa
Livermore, Livermore Municipal Airport, CA18 mi51 minW 1310.00 miFair75°F57°F55%1014.5 hPa

Wind History from CCR (wind in knots)
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Last 24hrSW12W13W11W11W11W12W11W9W13SW9
G17
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1 day agoSW9W9W8W8W75W7SW5SW10W4W7W7W6W7W6SW4W10W11W12W13W13W13SW11SW12
2 days agoW11W6W7W6W7W5W7W8W9W5W5W3W3SW5W7W9W13W5NW10NW10W10SW10W13S9

Tide / Current Tables for Suisun Point, Carquinez Strait, California
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Suisun Point
Click for Map
Mon -- 01:15 AM PDT     6.02 feet High Tide
Mon -- 06:19 AM PDT     Moonrise
Mon -- 06:29 AM PDT     Sunrise
Mon -- 08:34 AM PDT     -0.33 feet Low Tide
Mon -- 11:31 AM PDT     New Moon
Mon -- 02:49 PM PDT     5.03 feet High Tide
Mon -- 07:53 PM PDT     Sunset
Mon -- 08:04 PM PDT     Moonset
Mon -- 08:19 PM PDT     1.58 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.665.95.13.92.61.40.4-0.2-0.30.41.62.944.854.63.72.821.61.72.43.6

Tide / Current Tables for Stake Point .9 Mi NNW, Suisun Bay, California Current
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Stake Point .9 Mi NNW
Click for Map
Mon -- 12:50 AM PDT     0.97 knots Max Flood
Mon -- 03:43 AM PDT     -0.01 knots Slack
Mon -- 06:19 AM PDT     Moonrise
Mon -- 06:28 AM PDT     Sunrise
Mon -- 07:20 AM PDT     -0.94 knots Max Ebb
Mon -- 10:42 AM PDT     0.00 knots Slack
Mon -- 11:31 AM PDT     New Moon
Mon -- 02:35 PM PDT     0.86 knots Max Flood
Mon -- 05:26 PM PDT     -0.00 knots Slack
Mon -- 07:52 PM PDT     Sunset
Mon -- 08:03 PM PDT     Moonset
Mon -- 08:06 PM PDT     -0.54 knots Max Ebb
Mon -- 10:14 PM PDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.910.80.4-0.1-0.5-0.8-0.9-0.9-0.7-0.30.10.50.70.80.80.60.2-0.2-0.4-0.5-0.4-0.10.3

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 San Francisco/Monterey Bay Area, CA (21,6,7,8)
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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.