Friday, August18, 2017 L-36.com


Marine Weather and Tides
Port Costa, 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 6:25AMSunset 7:59PM Thursday August 17, 2017 11:49 PM PDT (06:49 UTC) Moonrise 1:05AMMoonset 3:45PM Illumination 17% Phase: Waning Crescent; Moon at 26 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- 856 Pm Pdt Thu Aug 17 2017
Tonight..SW winds 10 to 20 kt.
Fri..SW winds 10 to 20 kt.
Fri night..SW winds 10 to 20 kt.
Sat..SW winds 10 to 20 kt.
Sat night..SW winds 10 to 20 kt. Patchy fog after midnight.
Sun..SW winds 10 to 20 kt...decreasing to 10 kt.
Mon..SW winds 5 kt...increasing to 5 to 15 kt.
Tue..SW winds 5 kt...increasing to 5 to 15 kt.
PZZ500 856 Pm Pdt Thu Aug 17 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... A 1027 mb high is centered 750 miles west of cape mendocino. A ridge will build from this high into the pacific northwest this weekend. This will result in increasing northwest windsover the northern waters.

7 Day Forecast for Marine Location Near Port Costa, CA
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location: 38.03, -122.15     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 172240
afdsto
area forecast discussion
national weather service sacramento ca
340 pm pdt Thu aug 17 2017

Synopsis
Temperatures near to slightly above normal with a threat of
afternoon evening mountain thunderstorms.

Discussion (today through Saturday)
At 3 pm, temperatures across interior norcal valley were generally
in the 90s except for upper 80s closer to the delta region and
a little over 100 around redding. High pressure is building over
the eastern pacific and is causing a warming trend for our for
norcal. Expect a little more warming this afternoon as daytime
highs should peak between 94 to 104 in the valley... Mid 70s to low
90s across higher terrain... 80s in the delta.

As forecast, we're seeing a few cells of convection over the
sierra near and just north of yosemite on radar this afternoon.

These thunderstorms are popping up as small cells and tend to
weaken soon after developing. However, they can still produce
small hail, lightning, and locally gusty winds.

Warming trend peaks tomorrow as much of our forecast area nudges
up the thermometer by a degree or two. The hot spot will again be
the redding area reaching around 106 degrees. The chance of
afternoon evening thunderstorms over mountains is expected again
tomorrow and through the rest of the short-term forecast period.

However, daytime highs will gradually trend cooler over the
weekend. Jbb
.Extended discussion (Monday through Thursday)
an upper level low will be setting up off the coast of southern
california to start the extended period on Saturday. This will
push moisture north into norcal and bring a chance for mountain
thunderstorms during the afternoon and for both Sunday and Monday.

There could be enough moisture to see some clouds in the valley,
but widespread cloud cover is not expected. Tuesday moisture will
decrease and should limit the thunderstorm chances, but still
could see some activity mainly over the coastal range of tahama
and shasta counties. On Wednesday the upper level low pushes east
as a trough moves south out of the gulf of alaska. This will bring
unstable conditions for the end of the period but mountain
thunderstorm chances look limited. Overall temperatures will be
seasonal throughout the period to maybe a few degrees below normal
on Tuesday.

Aviation
Vfr conditions the next 24 hours at the TAF sites. Winds under 10
knots except in the delta where gusts to 30 knots will be
possible. Afternoon thunderstorms and CB possible over the sierra
this afternoon and through the early evening.

Sto watches warnings advisories
None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MZXC1 - 9415102 - Martinez-Amorco CA 1 mi49 min WNW 14 G 16 64°F 68°F1015 hPa (+1.1)58°F
PCOC1 - 9415144 - Port Chicago, CA 6 mi49 min W 18 G 20 65°F 71°F1014.3 hPa (+1.0)
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 6 mi49 min SW 16 G 19 62°F 1014.9 hPa (+1.1)
SFXC1 - San Francisco Bay Reserve, CA 13 mi64 min W 9.9 63°F 1013 hPa56°F
PPXC1 - 9414847 - Richmond (Point Potrero), CA 14 mi49 min S 16 G 18 60°F 1016.1 hPa (+1.1)
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 14 mi49 min WNW 15 G 18 71°F 1013 hPa (+0.4)
RCMC1 - 9414863 - Richmond, CA 16 mi49 min SSW 7 G 9.9 61°F 65°F1015.6 hPa (+1.1)
TIBC1 - Tiburon Pier, San Francisco Bay, CA 18 mi57 min SW 14 59°F 1016 hPa (+2.0)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 18 mi49 min W 12 G 13
OKXC1 - 9414776 - Oakland (Berth 34), CA 18 mi49 min W 6 G 9.9 60°F 1016.2 hPa (+1.1)
LNDC1 18 mi49 min W 6 G 7 61°F 1016.1 hPa (+1.0)
OBXC1 19 mi49 min 60°F 59°F
PXSC1 20 mi49 min 61°F 58°F
AAMC1 - 9414750 - Alameda, CA 20 mi49 min W 5.1 G 8 61°F 68°F1016.6 hPa (+0.9)
PXOC1 - 9414311 - San Francisco (Pier 1), CA 21 mi49 min WSW 6 G 8 59°F 1015.1 hPa (+1.0)
FTPC1 - 9414290 - San Francisco, CA 23 mi49 min WSW 6 G 12 59°F 60°F1016.3 hPa (+1.1)
46237 - San Francisco Bar, CA (142) 31 mi49 min 60°F4 ft
RTYC1 - 9414523 - Redwood City, CA 36 mi49 min W 1.9 G 2.9 66°F 73°F1015.3 hPa (+1.0)
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 41 mi59 min NNW 5.8 G 5.8 58°F 59°F4 ft1016.6 hPa (+0.9)
PRYC1 - 9415020 - Point Reyes, CA 44 mi49 min W 7 G 8 61°F 60°F1016 hPa (+0.4)

Wind History for Martinez-Amorco Pier, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA6 mi56 minSW 610.00 miFair69°F50°F51%1013.2 hPa
Napa, Napa County Airport, CA14 mi55 minW 610.00 miFair60°F55°F86%1014.4 hPa
Fairfield / Travis Air Force Base, CA21 mi51 minWSW 21 G 2810.00 miFair and Breezy64°F55°F73%1012.8 hPa
Novato / Gnoss Field, CA23 mi54 minNNW 410.00 miA Few Clouds59°F53°F82%1015.9 hPa
Oakland, Metro Oakland International Airport, CA23 mi56 minWNW 109.00 miA Few Clouds61°F57°F90%1015.9 hPa

Wind History from CCR (wind in knots)
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Last 24hrW5W5W5W8W6W6W5W4W7W53W4N11NW9NW12NW12W12NW12SW12W6W11SW6SW10SW6
1 day agoS11SW9SW7SW9SW4W3CalmCalmSW4S10S10S7SW65S8W10W10W10W12W7W9W10W13W9
2 days agoS19
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S14S11S12S11SW13SW16SW13SW9SW12S15S16S13S14S16SW12S13S11S11S10

Tide / Current Tables for Suisun Point, Carquinez Strait, California
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Suisun Point
Click for Map
Fri -- 03:03 AM PDT     Moonrise
Fri -- 06:13 AM PDT     -0.10 feet Low Tide
Fri -- 06:26 AM PDT     Sunrise
Fri -- 12:25 PM PDT     4.41 feet High Tide
Fri -- 05:26 PM PDT     1.97 feet Low Tide
Fri -- 05:43 PM PDT     Moonset
Fri -- 07:57 PM PDT     Sunset
Fri -- 11:27 PM PDT     5.98 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.24.33.221.10.3-0.10.10.81.82.93.84.44.33.732.4222.63.54.65.55.9

Tide / Current Tables for Carquinez Strait, California Current
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Carquinez Strait
Click for Map
Fri -- 12:14 AM PDT     -0.00 knots Slack
Fri -- 03:03 AM PDT     Moonrise
Fri -- 04:14 AM PDT     -2.96 knots Max Ebb
Fri -- 06:26 AM PDT     Sunrise
Fri -- 08:07 AM PDT     0.00 knots Slack
Fri -- 11:22 AM PDT     1.92 knots Max Flood
Fri -- 02:13 PM PDT     -0.00 knots Slack
Fri -- 04:54 PM PDT     -1.45 knots Max Ebb
Fri -- 05:43 PM PDT     Moonset
Fri -- 07:08 PM PDT     0.01 knots Slack
Fri -- 07:57 PM PDT     Sunset
Fri -- 10:01 PM PDT     2.38 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.3-1-2.1-2.7-2.9-2.9-2.3-1.3-0.10.81.51.91.81.20.2-0.7-1.3-1.5-1.1-0.21.122.42.1

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 (2,6,7,8)
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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.