Wednesday, January17, 2018 L-36.com


Marine Weather and Tides
Stockton, 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 7:17AMSunset 5:14PM Wednesday January 17, 2018 5:40 PM PST (01:40 UTC) Moonrise 7:40AMMoonset 6:01PM Illumination 2% Phase: Waxing Crescent; Moon at 1 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- 1253 Pm Pst Wed Jan 17 2018
Tonight..S winds 10 kt. Slight chance of rain after midnight.
Thu..S winds 10 to 20 kt. Chance of rain.
Thu night..SW winds 10 to 20 kt...becoming W 10 kt after midnight. Chance of rain in the evening, then chance of showers after midnight.
Fri..W winds 10 kt. Chance of showers.
Fri night..W winds 5 to 15 kt. Slight chance of showers.
Sat..W winds 10 kt.
Sun..SE winds 5 kt...becoming S 5 to 15 kt. Chance of rain, then rain likely.
Mon..SW winds 10 kt...becoming north. Chance of showers, then slight chance of showers.
PZZ500 230 Pm Pst Wed Jan 17 2018 Corrected
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... High pressure to the southwest will continue to shift south as a low pressure system approaches the pacific northwest. A frontal system associated with the low will move through the area on Thursday. Gusty southerly will form through tonight, then shift quickly to westerly on Thursday, before becoming northwesterly by Friday. A large long-period swell will bring dangerous breaking waves to the coastline tonight through at least Friday. Dense fog with low visibility will impact some areas today. The combination of gusty southerly winds ahead of the cold front followed by building seas will continue to bring small craft advisory (sca) conditions for the outer waters north of point reyes through at least Thursday night. The rest of the outer waters will likely experience sca conditions due to building seas Thursday.

7 Day Forecast for Marine Location Near Stockton, CA
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location: 37.96, -121.29     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 172300
afdsto
area forecast discussion
national weather service sacramento ca
300 pm pst Wed jan 17 2018

Synopsis
Active weather pattern continues, with a cold storm system arriving
Thursday-Friday. A similarly cold and wet storm system is expected
Sunday-Monday.

Discussion
Main forecast concerns for the short term period are the incoming
winter storm tonight through Friday that will bring heavy
accumulating snow for the mountains and snow levels to around 2500
to 3000 feet and widespread rainfall across the valley.

Latest satellite imagery and model upper level analysis shows the
incoming upper level low positioned just off the washington
coastline with height falls across northern california. Plenty of
moisture ahead of the disturbance is leading to increased cloud
cover across the forecast area as well as a moist environment,
leading to a slow fog dissipation from the morning hours. Patchy
fog will possibly continue through the evening hours until rain
begins sometime late this evening through the overnight hours.

The main impactful weather from the storm will result in
precipitation up to an inch for the valley and between 1 and 2
feet of snow for the sierra through Friday. Travel for the i-80
and us 50 corridors could become difficult or even impassible
without chains. Gusty winds between 25 and 35 mph could make
travel difficult for higher profile vehicles.

Trough base swings through sometime Friday afternoon through
Friday night, which will end the main accumulation period of
precipitation across the area. A shortwave ridge of high pressure
will develop Saturday with the potential for clearing skies and
patchy fog for the valley before the next weather making system
arrives Saturday night into Sunday.

.Extended discussion (Sunday through Wednesday)
another weather system is expected to impact norcal Sunday through
Monday. Precipitation will initially impact the coastal range
early Sunday before slowly spreading southeast throughout the day.

This storm is expected to be cooler with snow levels 3000 to 5000
feet. Precipitation amounts keep fluctuating between model runs
for this storm, though they all seem pretty confident that this
will be a slightly wetter storm for the valley and areas north of
interstate 80 than the more recent storm. The valley can expect
half an inch to an inch of rain with locally up to 2 inches over
the northern sierra. The coastal range is expected to receive the
most precipitation of the season so far with liquid precipitation
values of 2 to 3 inches possible. Snow amounts could reach up to a
foot over the higher elevations of the coastal range.

Light precipitation could linger over the higher elevations
Tuesday. Models continue to show a continuation of the wet pattern
with another storm system moving in mid to late week. Details are
still pretty hazy this far out, so keep an eye on the forecast for
updates. Hec

Aviation
MVFR ifr conditions, local ifr, due to low ceilings will continue
through the evening. Another round of valley fog could be
possible after 06z Thursday from ksmf southward. Rain will impact
the northern sacramento valley after 3z Thursday, moving southward
after 12z. Winds remain under 15 knots. Hec

Sto watches warnings advisories
Winter storm warning from noon Thursday to 4 pm pst Friday for
west slope northern sierra nevada-western plumas county lassen
park.

Winter weather advisory from 7 pm Thursday to 4 pm pst Friday
for mountains southwestern shasta county to northern lake county-
shasta lake area northern shasta county.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 32 mi40 min ESE 7 G 8.9 53°F 1022.6 hPa
PCOC1 - 9415144 - Port Chicago, CA 40 mi40 min NNE 6 G 7 53°F 52°F1022.8 hPa (-0.8)
SFXC1 - San Francisco Bay Reserve, CA 42 mi55 min ESE 2.9 53°F 1023 hPa53°F
MZXC1 - 9415102 - Martinez-Amorco CA 45 mi40 min NNE 6 G 7 53°F 52°F1023.1 hPa (-0.6)
AAMC1 - 9414750 - Alameda, CA 55 mi40 min NNW 4.1 G 8 56°F 55°F1022.5 hPa (-0.5)

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Stockton, Stockton Metropolitan Airport, CA4 mi45 minSE 35.00 miFog/Mist55°F52°F90%1022.8 hPa

Wind History from SCK (wind in knots)
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Last 24hrW4W3CalmCalmSE5W3CalmSE4E3CalmE3CalmE7E4SE5SE4E6E4SE53S5CalmSE5SE3
1 day agoW4CalmNE3N3CalmCalmW7NW4E7E4S3W4NW7W5W9N5NW4N7N6N5NW6NW4NW4W4
2 days agoCalmW6W4SE3CalmW11
G21
N4NE3E4NE3E4SW3CalmCalmSW4SE5CalmSE4CalmE4CalmCalmSW5W4

Tide / Current Tables for Stockton, San Joaquin River, California
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Stockton
Click for Map
Wed -- 01:16 AM PST     -0.08 feet Low Tide
Wed -- 07:11 AM PST     3.51 feet High Tide
Wed -- 07:19 AM PST     Sunrise
Wed -- 07:39 AM PST     Moonrise
Wed -- 12:38 PM PST     1.48 feet Low Tide
Wed -- 05:11 PM PST     Sunset
Wed -- 05:31 PM PST     4.25 feet High Tide
Wed -- 06:01 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.2-0.10.10.71.62.53.23.53.42.92.31.91.51.51.92.83.74.24.23.93.32.51.71

Tide / Current Tables for Vulcan Island .5 mi E, San Joaquin River, California Current
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Vulcan Island .5 mi E
Click for Map
Wed -- 01:55 AM PST     0.00 knots Slack
Wed -- 05:10 AM PST     0.60 knots Max Flood
Wed -- 07:19 AM PST     Sunrise
Wed -- 07:40 AM PST     Moonrise
Wed -- 08:30 AM PST     -0.00 knots Slack
Wed -- 10:42 AM PST     -0.21 knots Max Ebb
Wed -- 12:53 PM PST     0.00 knots Slack
Wed -- 03:27 PM PST     0.58 knots Max Flood
Wed -- 05:12 PM PST     Sunset
Wed -- 06:02 PM PST     Moonset
Wed -- 06:33 PM PST     -0.00 knots Slack
Wed -- 10:08 PM PST     -0.59 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.4-0.200.30.50.60.60.40.1-0.1-0.2-0.2-0.100.40.60.60.40.2-0.1-0.4-0.5-0.6-0.6

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 (20,4,5,8)
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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.