Friday, July21, 2017 L-36.com


Marine Weather and Tides
Concord, 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 6:01AMSunset 8:27PM Friday July 21, 2017 3:43 PM PDT (22:43 UTC) Moonrise 3:16AMMoonset 5:58PM Illumination 3% Phase: Waning Crescent; Moon at 28 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- 234 Pm Pdt Fri Jul 21 2017
Tonight..SW winds 5 to 15 kt.
Sat..SW winds 5 to 15 kt.
Sat night..SW winds 10 to 20 kt.
Sun..SW winds 10 to 20 kt.
Sun night..SW winds 10 to 20 kt.
Mon..SW winds 10 to 20 kt.
Tue..SW winds 5 to 15 kt.
Wed..SW winds 10 kt.
PZZ500 234 Pm Pdt Fri Jul 21 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Gusty northwesterly winds will continue into Saturday before decreasing somewhat during the remainder of the weekend as high pressure off the california coast begins to weaken.

7 Day Forecast for Marine Location Near Concord, CA
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location: 38, -122     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 212137
afdsto
area forecast discussion
national weather service sacramento ca
237 pm pdt Fri jul 21 2017

Synopsis
Hot and dry weather today. Widespread triple heat across the
valley this weekend. Slight chance of sierra thunderstorms Sunday
afternoon and into early next week.

Discussion
Water vapor imagery continues to indicate a steady stream of dry
air across northern california under southwest winds aloft.

Visible satellite imagery shows some smoke activity around the
detwiler fire, but areal expansion northward along the sierra
foothills and mountains seems to be lesser as compared to previous
days. Temperatures this afternoon are running a few degrees warmer
than the early afternoon yesterday.

High pressure will continue to build and allow warming
temperatures for the valley and surrounding foothills heading into
this weekend. With little overnight relief due to warm low
temperatures, a heat advisory has been issued for the northern
sacramento valley and surrounding foothills.

A weak subtle trough will develop off the coast Saturday into
Sunday with some height falls aloft. This may bring some sierra
crest thunderstorms south of highway 50 Sunday afternoon and
Monday afternoon. Currently the GFS is the most aggressive model
as far as convective development, however other forecast models
seem to be keeping the main threat of thunderstorms to the east of
the sierra crest. Confidence is low as to thunderstorm development
and timing, but the next few model runs should be able to capture
the situation better as models resolve the building high pressure
and the developing shortwave trough in the eastern pacific.

.Extended discussion (Tuesday through Friday)
offshore upper low progged to move inland Tuesday although models
differ with progression rate. Progs however showing better
potential for showers thunderstorms over the mountains Tuesday and
thus have bumped up pops for those areas. Cooler temperatures
continue Tuesday. Weak baggy upper troughing aloft continues
through the remainder of the week resulting in drier weather with
a slight upward trend in temperatures.

Aviation
Swly flow alf withVFR conds ovr intr norcal nxt 24 hrs exc isold MVFR
conds poss in smk vcnty of detwiler fire in mariposa cnty. LCL sw
sfc wnd gsts to 25 kts poss ovr hyr mtn trrn aftn eve and thru
delta ovngt.

Sto watches warnings advisories
Heat advisory from noon Saturday to 9 pm pdt Sunday for central
sacramento valley-mountains southwestern shasta county to
northern lake county-northeast foothills sacramento valley-
northern sacramento valley-shasta lake area northern shasta
county.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PCOC1 - 9415144 - Port Chicago, CA 4 mi44 min W 13 G 14 79°F 72°F1013.1 hPa (-1.9)
MZXC1 - 9415102 - Martinez-Amorco CA 7 mi44 min WNW 14 G 15 80°F 69°F1013.6 hPa (-1.8)53°F
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 7 mi50 min NW 13 G 17 81°F 1012.7 hPa
SFXC1 - San Francisco Bay Reserve, CA 14 mi59 min WNW 8.9 86°F 1013 hPa58°F
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 15 mi44 min WSW 11 G 13 73°F 1013.5 hPa (-1.8)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 20 mi44 min SSW 17 G 21 61°F 1015.2 hPa (-1.3)
LNDC1 21 mi44 min WSW 8 G 11 67°F 1015.2 hPa (-1.2)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 22 mi44 min WSW 9.9 G 12
RCMC1 - 9414863 - Richmond, CA 22 mi44 min S 8 G 12 63°F 63°F1014.7 hPa (-1.4)
OKXC1 - 9414776 - Oakland (Berth 34), CA 22 mi44 min W 8 G 9.9 67°F 1015.2 hPa (-1.1)
AAMC1 - 9414750 - Alameda, CA 22 mi44 min WSW 9.9 G 13 65°F 69°F1015.8 hPa (-1.1)
OBXC1 23 mi44 min 65°F 55°F
PXSC1 25 mi44 min 66°F 53°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 25 mi44 min SSW 1.9 G 8 68°F 1014.3 hPa (-1.0)
FTPC1 - 9414290 - San Francisco, CA 28 mi44 min WSW 15 G 20 61°F 58°F1015.5 hPa (-1.3)
RTYC1 - 9414523 - Redwood City, CA 36 mi44 min W 14 G 17 73°F 73°F1014.3 hPa (-1.4)
46237 - San Francisco Bar, CA (142) 37 mi44 min 55°F5 ft
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 48 mi54 min NW 16 G 18 54°F 52°F6 ft1016 hPa (-0.9)

Wind History for Port Chicago, CA
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W13
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W14
G17
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G14

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA3 mi51 minNW 1010.00 miFair92°F53°F27%1011.8 hPa
Fairfield / Travis Air Force Base, CA20 mi1.8 hrsW 810.00 miFair88°F53°F31%1013.5 hPa
Napa, Napa County Airport, CA21 mi50 minSSW 1310.00 miFair82°F54°F38%1013 hPa
Livermore, Livermore Municipal Airport, CA23 mi51 minWNW 1210.00 miFair87°F48°F27%1013.3 hPa
Oakland, Metro Oakland International Airport, CA24 mi51 minW 1010.00 miFair73°F53°F50%1015.3 hPa
Hayward, Hayward Air Terminal, CA24 mi50 minWNW 1210.00 miFair72°F52°F50%1016.1 hPa

Wind History from CCR (wind in knots)
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Last 24hrW10SW9SW9S13S12S13S15S12
G21
S15S15S15S11S12S11S13S13S12S9S5S6NW11NW9NW10NW10
1 day agoW10W7W10
G16
SW8S13S14S13S15S13
G19
S15S15S15S13
G20
S12S14S15S11SW12S11S10S11S8SW7W8
2 days agoS15S13S11S8S10S10S12S9S10S11S10S11SW6SW9S5SW10SW7S7S6CalmNW9NW11NW10NW9

Tide / Current Tables for Port Chicago, Suisun Bay, California
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Port Chicago
Click for Map
Fri -- 04:16 AM PDT     Moonrise
Fri -- 06:02 AM PDT     Sunrise
Fri -- 07:52 AM PDT     -0.40 feet Low Tide
Fri -- 02:00 PM PDT     4.13 feet High Tide
Fri -- 06:58 PM PDT     Moonset
Fri -- 06:59 PM PDT     1.87 feet Low Tide
Fri -- 08:26 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.85.64.83.72.51.40.5-0.2-0.400.923.13.84.13.93.22.52.11.92.12.945

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
Fri -- 02:08 AM PDT     -0.01 knots Slack
Fri -- 04:15 AM PDT     Moonrise
Fri -- 05:43 AM PDT     -0.98 knots Max Ebb
Fri -- 06:01 AM PDT     Sunrise
Fri -- 09:35 AM PDT     0.00 knots Slack
Fri -- 01:24 PM PDT     0.77 knots Max Flood
Fri -- 04:10 PM PDT     -0.00 knots Slack
Fri -- 06:23 PM PDT     -0.39 knots Max Ebb
Fri -- 06:57 PM PDT     Moonset
Fri -- 08:23 PM PDT     0.00 knots Slack
Fri -- 08:26 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
10.60.1-0.4-0.8-0.9-1-0.9-0.6-0.20.20.50.70.80.70.50.1-0.2-0.4-0.4-0.10.20.70.9

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 (18,4,5,8)
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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.