Tuesday, September26, 2017 L-36.com


Marine Weather and Tides
Clarksburg, 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 6:56AMSunset 6:56PM Tuesday September 26, 2017 7:28 AM PDT (14:28 UTC) Moonrise 12:03PMMoonset 10:16PM Illumination 34% Phase: Waxing Crescent; Moon at 6 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- 251 Am Pdt Tue Sep 26 2017
Today..E winds 10 kt...becoming nw in the afternoon.
Tonight..N winds 5 to 15 kt.
Wed..NE winds 10 kt...becoming W in the afternoon.
Wed night..SW winds 5 to 15 kt.
Thu..SW winds 5 to 15 kt.
Fri..W winds 10 kt.
Sat..W winds 5 to 15 kt.
PZZ500 251 Am Pdt Tue Sep 26 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... A thermal trough over the california interior will shift to the coast resulting in decreasing winds. An upper level trough will approach the pacific northwest Friday increasing the pressure gradients over the area.

7 Day Forecast for Marine Location Near Clarksburg, CA
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location: 38.42, -121.52     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 261035
afdsto
area forecast discussion
national weather service sacramento ca
335 am pdt Tue sep 26 2017

Synopsis
Breezy north winds today through early Wednesday for increased
fire danger. Remaining warmer than normal through the end of the
week with lighter winds. A little cooler over the weekend.

Discussion
Temperatures running a few to several degrees warmer than 24 hours
ago as high pressure continues to build over the eastern pacific.

Overall airmass warms a few degrees today so expect daytime highs
to come in a few degrees above Monday and about 5 degrees above
normal for this time of year. Combination of northerly flow aloft
and moderately tight surface gradient will bring another day of
breezy north winds. Rdd to sac gradient also higher than 24 hours
ago so expect the north winds to be a little higher today.

Combination of breezy north winds and low rh continue to bring
increased fire danger so red flag warning will remain in place
through Wednesday morning. Upper level ridge is forecast to center
over the west coast by Wednesday afternoon bringing a slight
warming trend and lighter surface gradients so should see lighter
winds by the afternoon hours. Weather pattern changes little on
Thursday as the upper ridge slides slowly eastward over the
region. An upper low pushing into the pacific northwest is
forecast to displace the upper ridge into the rockies on Friday.

This will bring daytime highs Friday down to near normal. At this
time, it appears any precipitation associated with this low
pressure system will remain north of the forecast area.

.Extended discussion (Saturday through Tuesday)
the extended forecast is now trending cooler for the weekend as a
trough moves through Saturday, potentially followed by a deeper
trough early next week. Extended models have struggled with
consistency, so confidence has lowered. Current forecast now
projects below normal temperatures for Sunday into Monday, with
valley highs in the low 80s, along with breezy northerly winds. Have
introduced a slight chance of rain Monday and Tuesday, mainly for
northern shasta county. May need to expand this further if deeper
trough solution trend continues. Ek

Aviation
Vfr conditions expected for valley TAF sites for the next 24
hours. Northerly gusts up to 20kts possible in the sacramento
valley today 18-02z. Easterly gusts up to 30kt possible over the
sierra crest and foothills this morning.

Sto watches warnings advisories
Red flag warning until 7 am pdt Wednesday for carquinez strait
and delta-central sacramento valley in glenn, colusa, yuba,
northern sutter, and butte county below 1000 ft-eastern
mendocino nf-eastern portion of shasta trinity nf-lake county
portion of lake-napa-sonoma unit-northern motherlode from 1000
to 3000 ft. Includes portions of nevada-yuba-placer-amador and
eldorado units-northern sacramento valley to southern tehama
county line below 1000 ft-northern sierra foothills from 1000 to
3000 ft. Includes portions of shasta-trinity and butte units-
northern sierra including lassen np and plumas and lassen nf s
west of the sierra crest (west of evans peak-grizzly peak-
beckworth peak)-northern sierra including the tahoe and eldorado
nf S west of the sierra crest-southeast edge shasta-trinity nf
and western portions of tehama-glenn unit-southern motherlode
from 1000 to 3000 ft. Includes portions of calaveras-tuolumne
unit-southern sacramento valley in yolo-sacramento far western
placer, southern sutter and solano county below 1000 ft-
stanislaus nf west of the sierra crest.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SFXC1 - San Francisco Bay Reserve, CA 31 mi103 min SSE 2.9 58°F 1010 hPa55°F
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 33 mi40 min W 1 G 1.9 64°F 1010.6 hPa
PCOC1 - 9415144 - Port Chicago, CA 37 mi40 min SSW 6 G 8 59°F 67°F1010.9 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 42 mi40 min S 4.1 G 5.1 60°F 67°F1011.3 hPa48°F
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 47 mi46 min Calm G 1.9 63°F 1010.5 hPa
RCMC1 - 9414863 - Richmond, CA 58 mi46 min Calm G 1.9 62°F 64°F1010.5 hPa

Wind History for Port Chicago, CA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sacramento Executive Airport, CA7 mi35 minN 010.00 miFair52°F46°F80%1011 hPa
Sacramento Mather Airport, CA15 mi43 minN 010.00 miClear52°F41°F67%1010.8 hPa
University Airport, CA16 mi33 minN 010.00 miFair57°F41°F55%1011.5 hPa
Sacramento, McClellan Airfield Airport, CA18 mi33 minNNE 310.00 miFair52°F39°F62%1011.8 hPa
Sacramento International Airport, CA20 mi35 minN 010.00 miPartly Cloudy54°F44°F69%1010.9 hPa
Vacaville Nut Tree Airport, CA23 mi35 minN 010.00 miFair56°F44°F65%1011.3 hPa
Fairfield / Travis Air Force Base, CA24 mi30 minN 010.00 miFair51°F40°F67%1011.1 hPa

Wind History from SAC (wind in knots)
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Last 24hrSE4CalmCalmCalmNW4NW5NW8NW7
G17
N8NW9NW6NW3CalmCalmCalmCalmCalmNE3CalmCalmN4CalmCalmCalm
1 day agoCalmNW4NW6NW4N84NW8N6N7N9
G15
N7CalmCalmCalmCalmW3CalmCalmCalmN3CalmCalmCalmCalm
2 days agoNW6N5N8NW12N13
G21
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G21
N12
G19
NW83NW8W5NW5CalmW3NW4CalmN5CalmN5N5NW3CalmCalm

Tide / Current Tables for Clarksburg, Sacramento River, California
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Clarksburg
Click for MapNote: These data apply only during low river stages.

Tue -- 06:33 AM PDT     0.25 feet Low Tide
Tue -- 06:57 AM PDT     Sunrise
Tue -- 11:55 AM PDT     2.15 feet High Tide
Tue -- 01:02 PM PDT     Moonrise
Tue -- 05:50 PM PDT     0.74 feet Low Tide
Tue -- 06:56 PM PDT     Sunset
Tue -- 10:20 PM PDT     2.65 feet High Tide
Tue -- 11:16 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.31.91.410.70.40.30.30.61.11.722.121.71.310.80.711.62.32.62.6

Tide / Current Tables for Snodgrass Slough, Sacramento River, California
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Snodgrass Slough
Click for Map
Tue -- 06:57 AM PDT     Sunrise
Tue -- 07:07 AM PDT     0.23 feet Low Tide
Tue -- 12:57 PM PDT     1.76 feet High Tide
Tue -- 01:01 PM PDT     Moonrise
Tue -- 06:24 PM PDT     0.70 feet Low Tide
Tue -- 06:56 PM PDT     Sunset
Tue -- 11:16 PM PDT     Moonset
Tue -- 11:22 PM PDT     2.16 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.11.91.51.10.80.50.30.20.30.611.41.71.81.71.41.10.80.70.711.51.92.1

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 (10,2,3,4)
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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.