Monday, February19, 2018 L-36.com


Marine Weather and Tides
Vallejo, 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 6:51AMSunset 5:54PM Monday February 19, 2018 11:15 AM PST (19:15 UTC) Moonrise 9:10AMMoonset 9:52PM Illumination 20% Phase: Waxing Crescent; Moon at 4 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- 839 Am Pst Mon Feb 19 2018
.small craft advisory in effect through late tonight...
Today..NW winds 15 to 25 kt.
Tonight..NW winds 15 to 25 kt...decreasing to 5 to 15 kt after midnight.
Tue..W winds 5 to 15 kt.
Tue night..NW winds 5 to 15 kt.
Wed..NE winds 5 to 15 kt...becoming w.
Thu..W winds 10 kt...becoming nw 10 to 20 kt.
Fri..W winds 10 kt.
PZZ500 839 Am Pst Mon Feb 19 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Strong northwest winds will usher in arctic air today and generate fresh swell and steep wind waves. Showers will continue through the day. Another trough will swiftly move southward over the coastal waters late Wednesday night with a slight chance of showers.

7 Day Forecast for Marine Location Near Vallejo, CA
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location: 38.1, -122.27     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 191203
afdsto
area forecast discussion
national weather service sacramento ca
403 am pst Mon feb 19 2018

Synopsis
A cold weather system will bring scattered snow showers across
the northern sierra today. Near record cold temperatures with a
possible widespread freeze early this week. Unsettled pattern
continues through the week.

Discussion
Latest radar and satellite imagery indicates the next wave of
energy coming down on the backside of an upper level trough. High
resolution guidance indicates another round of showers over the
i-80 highway 50 corridor mainly through 6 am. Another inch or two
is possible over the higher elevations. After a brief break
during the day, the remaining upper energy is forecast to dive
southward Monday afternoon with another round of showers mainly
near the sierra crest. Forecast soundings indicate some afternoon
instability, which could result in some thundersnow. A quick 2 to
3 inches of snow is possible near the sierra crest Monday
afternoon with this activity.

Meanwhile, the coldest air of the winter season has begun to
impact the forecast area early this morning. Most valley locations
are near or below freezing under clear skies, a cold airmass and
light winds. This cold pattern is well supported by the naefs
ensembles as they indicate strong temperature anomalies at both
850mb and 1000mb. Therefore, widespread freeze conditions could
continue into Tuesday night with the potential for widespread
frost. The coldest temperatures are expected through Tuesday
morning. Wednesday morning lows are anticipated to be slightly
warmer as an upper wave could bring increased cloud cover.

Embedded disturbances in the upper flow will push across the area
this week, with a few inches of accumulation possible at pass
levels through early Friday. Snow levels will be around 1000-2000
feet or lower.

.Extended discussion (Friday through Monday)
another northerly shortwave trough is expected to move through the
region Thursday into Friday. Both the GFS and ECMWF are struggling
to grasp the details on this system, thus forecast confidence is
low on how widespread precipitation will be, and how much
moisture this system will have. Snow levels are expected to remain
quite low in this cold regime however, and light snow could again be
possible in the foothills.

A weak ridge will move through the region Friday into Saturday,
bringing drier weather along with another round of potentially
sub-freezing valley temperatures overnight. Another series of
storm systems will then approach the region early next week. Gfs
and ECMWF have not gotten a good handle on this pattern change, as
the GFS shows a rather wet scenario developing, and the ecmwf
flip- flopping between wet and dry solutions. For now, our
forecast is a blend of these very different solutions.

Dang

Aviation
Vfr conditions across valley TAF sites the next 24 hours.

Scattered snow showers with ifr lifr conditions will continue over
the mountains. Light overnight winds will increase to NW 5-15 kt
with local gusts to 25 kt during the day, then weaken again
tonight.

Dang

Sto watches warnings advisories
Freeze warning until 8 am pst Wednesday for carquinez strait and
delta-central sacramento valley-clear lake southern lake county-
motherlode-northeast foothills sacramento valley-northern
sacramento valley-northern san joaquin valley-shasta lake area
northern shasta county-southern sacramento valley.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 3 mi46 min WNW 5.1 G 8 45°F 1017.4 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 9 mi46 min W 8.9 G 12 44°F 53°F1017.4 hPa29°F
PCOC1 - 9415144 - Port Chicago, CA 13 mi46 min W 2.9 G 6 45°F 53°F1017.1 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 14 mi46 min N 11 G 14 46°F 1017.7 hPa
RCMC1 - 9414863 - Richmond, CA 14 mi46 min NNW 12 G 15 44°F 54°F1017.2 hPa
SFXC1 - San Francisco Bay Reserve, CA 15 mi91 min NE 2.9 46°F 1017 hPa28°F
TIBC1 - Tiburon Pier, San Francisco Bay, CA 17 mi82 min N 16 45°F 1017 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 20 mi46 min N 9.9 G 14 45°F 1017.6 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 21 mi46 min WNW 5.1 G 7 45°F 1017.1 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 21 mi46 min N 8.9 G 12
LNDC1 21 mi52 min N 9.9 G 13 45°F 1017.4 hPa
OBXC1 21 mi46 min 45°F 29°F
PXSC1 22 mi46 min 46°F 31°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 22 mi46 min NNW 12 G 17 45°F 1016.6 hPa
AAMC1 - 9414750 - Alameda, CA 23 mi46 min N 9.9 G 16 45°F 54°F1017.6 hPa
FTPC1 - 9414290 - San Francisco, CA 23 mi46 min N 8 G 12 46°F 54°F1017.8 hPa
46237 - San Francisco Bar, CA (142) 29 mi46 min 51°F8 ft
PRYC1 - 9415020 - Point Reyes, CA 38 mi46 min NW 22 G 25 49°F1017.7 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 38 mi86 min NNW 23 G 27 46°F 52°F11 ft1017.2 hPa (+2.2)
RTYC1 - 9414523 - Redwood City, CA 41 mi46 min NW 12 G 17 45°F 55°F1018 hPa

Wind History for Martinez-Amorco Pier, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Napa, Napa County Airport, CA8 mi22 minW 610.00 miFair48°F28°F46%1016.4 hPa
Concord, Buchanan Field, CA14 mi23 minVar 310.00 miFair50°F28°F43%1016.1 hPa
Novato / Gnoss Field, CA15 mi41 minNW 1610.00 miFair48°F28°F46%1017.6 hPa
Petaluma Municipal Airport, CA21 mi21 minWNW 5 G 1110.00 miFair48°F28°F46%1017.6 hPa
Fairfield / Travis Air Force Base, CA22 mi78 minNW 510.00 miFair46°F28°F49%1016.9 hPa

Wind History from APC (wind in knots)
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NW10W13W10W12W10NW10W8CalmW8W10W9N4N4N4CalmW6
1 day agoS5S5S4S5SW8SW8S7SW6S7S7S4SW3W4SW4W11W11SW9SW7W12W11W11W10W21
G24
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2 days agoSW4SW5W5SW4SW4SW4W43SE4CalmNE3NE3N3CalmCalmN4N5CalmN6CalmCalmCalmCalmSW4

Tide / Current Tables for Vallejo, Mare Island Strait, Carquinez Strait, California
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Vallejo
Click for Map
Mon -- 03:39 AM PST     5.50 feet High Tide
Mon -- 06:54 AM PST     Sunrise
Mon -- 09:10 AM PST     Moonrise
Mon -- 09:40 AM PST     1.44 feet Low Tide
Mon -- 03:28 PM PST     5.14 feet High Tide
Mon -- 05:52 PM PST     Sunset
Mon -- 09:51 PM PST     0.70 feet Low Tide
Mon -- 09:52 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.43.64.75.45.554.13.12.11.61.51.92.83.74.65.15.14.63.72.61.60.90.71.1

Tide / Current Tables for Mare Island Strait, So Vallejo, San Pablo Bay, California Current
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Mare Island Strait
Click for Map
Mon -- 12:44 AM PST     1.73 knots Max Flood
Mon -- 04:03 AM PST     -0.00 knots Slack
Mon -- 06:01 AM PST     -1.72 knots Max Ebb
Mon -- 06:54 AM PST     Sunrise
Mon -- 09:10 AM PST     Moonrise
Mon -- 10:00 AM PST     0.00 knots Slack
Mon -- 01:03 PM PST     1.33 knots Max Flood
Mon -- 03:58 PM PST     -0.00 knots Slack
Mon -- 05:52 PM PST     Sunset
Mon -- 06:13 PM PST     -2.04 knots Max Ebb
Mon -- 09:52 PM PST     Moonset
Mon -- 10:06 PM PST     0.01 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.61.71.40.80-1.2-1.7-1.6-1.2-0.7-00.61.11.31.10.7-0-1.3-2-1.9-1.5-0.9-0.10.7

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 (14,3,4,5)
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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.