Monday, September24, 2018 L-36.com


Marine Weather and Tides
Pittsburg, CA

Version 3.4
What's New / NOTES
9/17/2018 XTide broke when 1and1 "upgraded" my server. It has been esculated. I am sorry for the problem.

Sunrise 6:56AMSunset 7:01PM Monday September 24, 2018 10:30 AM PDT (17:30 UTC) Moonrise 6:16PMMoonset 5:24AM Illumination 100% Phase: Full Moon; Moon at 15 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 The San Francisco Bay North Of The Bay Bridge- 857 Am Pdt Mon Sep 24 2018
Today..SW winds up to 10 kt...increasing to 5 to 15 kt with gusts up to 25 kt this afternoon.
Tonight..SW winds 5 to 15 kt.
Tue..SW winds 5 to 15 kt with gusts up to 25 kt.
Tue night..SW winds 5 to 15 kt with gusts up to 25 kt.
Wed..SW winds 5 to 15 kt.
Wed night..SW winds 5 to 15 kt with gusts up to 25 kt.
Thu..W winds up to 10 kt.
Fri..SW winds 5 to 15 kt.
PZZ500 857 Am Pdt Mon Sep 24 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Split wind flow with light winds along the coast and breezy northwest winds in the outer waters. Winds will continue to diminish through the day but will remain locally breeze in the outer waters north of point reyes tonight. Light mixed swell, with a predominate short period northwest swell.


7 Day Forecast for Marine Location Near Pittsburg, CA
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location: 38.05, -121.87     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 241702
afdsto
area forecast discussion
national weather service sacramento ca
1002 am pdt Mon sep 24 2018

Synopsis
Warm this week, then cooler with a slight chance of showers this
weekend. Areas of northerly wind today into Tuesday increasing
fire weather concerns.

Discussion
Interior northern california resides under northerly flow aloft,
sandwiched between a ridge in the northeast pacific and an upper
trough diving into the northern rockies. A modest northerly
pressure gradient exists between mfr-rdd, and locally breezy north
winds have developed across the northern sacramento valley and
adjacent mountains. A red flag warning will continue through
Tuesday afternoon for these locations as periods of locally breezy
conditions continue. Elsewhere, clear skies prevail across the
region as only a shallow marine layer exists along the bay area
coast.

The rex block over the eastern pacific will very slowly drift
eastward through the course of the week. Look for temperatures to
rise accordingly, with highs generally reaching the 90s across
the valley through Thursday. With a bit of adiabatic compressional
heating due to north winds, the redding area may flirt with 100
degrees a few of these days. Look for highs in the 70s and 80s
over the mountains. Temperatures will begin to cool off on Friday
as a closed upper low approaches california.

Dang
.Extended discussion (Friday through Monday)
a significant cooling trend begins on Friday as models continue to
show the pacific low portion of the offshore rex block pushing on
to the coast. Winds should see a transition to more onshore which
should aid in bringing a drop in temperatures by several degrees.

If current models hold, the low center should be moving on to the
norther coast during the day on Saturday. Models continue to show
this scenario so have introduced some precipitation threat over
the northern mountains and the coast range Saturday afternoon.

Models do show some difference in the details but confidence in
some northern forecast area precipitation in the extended is
growing. More significant cooling is likely for Saturday with
daytime highs dropping to from 5 to 10 degrees below normal. Still
a bit more cooling will be possible on Sunday as the upper low
opens and shifts east of the state. Extended models depart a bit
more by the end of the extended Monday. ECMWF swings another low
through norcal for a precip threat over the north third of the cwa
while the GFS keeps the forecast area dry with the trough
remaining offshore. Either way, daytime temps remain below normal.

Aviation
Vfr conditions the next 24 hours. Northwest to northeast winds
10-15 knots gusts to 25 knots sacramento northward and over the
sierra. Otherwise winds generally below 10 knots.

Sto watches warnings advisories
Red flag warning until 5 pm pdt Tuesday for 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 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
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 1 mi30 min 69°F 1011.1 hPa (+0.8)
PCOC1 - 9415144 - Port Chicago, CA 9 mi30 min 67°F 66°F1011.2 hPa (+0.5)
SFXC1 - San Francisco Bay Reserve, CA 13 mi45 min SW 1.9 67°F 1011 hPa55°F
MZXC1 - 9415102 - Martinez-Amorco CA 14 mi30 min 63°F 67°F1011.4 hPa60°F
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 21 mi30 min 61°F 1011.4 hPa (+0.6)
LNDC1 28 mi30 min 60°F 1011.8 hPa (+0.8)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 28 mi30 min 59°F 1012.2 hPa (+0.9)
RCMC1 - 9414863 - Richmond, CA 30 mi30 min 59°F 63°F1011.7 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 30 mi60 min WSW 2.9 G 2.9
OBXC1 30 mi30 min 58°F 57°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 30 mi30 min 59°F 1011.8 hPa (+0.8)
AAMC1 - 9414750 - Alameda, CA 30 mi30 min 60°F 65°F1012.1 hPa (+0.9)
TIBC1 - Tiburon Pier, San Francisco Bay, CA 32 mi37 min SSE 6 60°F 1012 hPa (+1.0)
PXSC1 33 mi30 min 58°F 56°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 33 mi30 min 58°F 1010.8 hPa (+0.8)
FTPC1 - 9414290 - San Francisco, CA 36 mi30 min 55°F 61°F1012.1 hPa (+0.8)
RTYC1 - 9414523 - Redwood City, CA 42 mi30 min 61°F 69°F1012.3 hPa (+0.7)
46237 - San Francisco Bar, CA (142) 44 mi30 min 58°F4 ft

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA11 mi37 minVar 310.00 miFair69°F42°F38%1009.9 hPa
Fairfield / Travis Air Force Base, CA16 mi92 minSW 510.00 miFair64°F49°F58%1011.1 hPa
Vacaville Nut Tree Airport, CA23 mi37 minNNE 910.00 miFair81°F34°F18%1011.1 hPa
Napa, Napa County Airport, CA24 mi36 minN 010.00 miFair62°F54°F75%1010.7 hPa
Livermore, Livermore Municipal Airport, CA24 mi37 minN 010.00 miFair65°F37°F36%1011.3 hPa

Wind History from CCR (wind in knots)
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Last 24hrNW5NW8NW9N10NW11NW12W10SW11W6SW8E4S5NW3NW5CalmCalmCalmSE4S4CalmCalm----3
1 day agoN8N4N7NW12NW12NW8N11NW9NW6SW7SW5SW7CalmCalmCalmSE3CalmCalmCalmCalmCalmN3--W4
2 days agoCalmW6NW8NW11NW11W10W10W6N6N4N4NW4NW3CalmCalmNW4NW7W4W4W3CalmCalmNW6N5

Tide / Current Tables for Pittsburg, New York Slough, Suisun Bay, California
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Chain Island .7 mi SW, Sacramento River, California Current
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map and Satellite Images
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wmap_P
GOES Local Image of CentralWestCoast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Sacramento, CA (13,3,4,5)
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Ground Weather Radar Station Sacramento, CA
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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.