Saturday, January20, 2018 L-36.com


Marine Weather and Tides
French Camp, 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 7:15AMSunset 5:17PM Saturday January 20, 2018 6:34 PM PST (02:34 UTC) Moonrise 9:29AMMoonset 8:53PM Illumination 19% 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- 202 Pm Pst Sat Jan 20 2018
.small craft advisory in effect from Sunday afternoon through late Sunday night...
Tonight..W winds 10 to 20 kt.
Sun..S winds 5 to 15 kt. Chance of rain in the afternoon.
Sun night..S winds 15 to 25 kt. Rain in the evening, then rain likely after midnight.
Mon..SW winds 10 to 20 kt. Chance of showers in the morning, then slight chance of showers in the afternoon.
Mon night..NE winds 5 to 15 kt.
Tue..NE winds 5 to 15 kt...becoming north 5 kt. Slight chance of rain.
Wed..E winds 5 kt...becoming sw 5 to 15 kt. Rain likely, then chance of showers.
Thu..W winds 5 to 15 kt. Chance of showers, then slight chance of showers.
PZZ500 202 Pm Pst Sat Jan 20 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Breezy northwest winds today as high pressure remains offshore. Winds will gradually taper off into tonight as the ridge weakens and moves inland. Winds increase and back to become southwesterly later tomorrow ahead of an arriving cold front. The wave train that arrived earlier in the week continues to weaken, however, hazardous conditions remain possible through the next couple of days as wave heights align with the period. A new northwest wave train arrives Sunday evening.

7 Day Forecast for Marine Location Near French Camp, CA
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location: 37.87, -121.32     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 202320
afdsto
area forecast discussion
national weather service sacramento ca
320 pm pst Sat jan 20 2018

Synopsis
Pacific storm moves through Sunday into Monday followed by
another midweek into Friday bringing periods of rain, mountain
snow, and gusty wind.

Discussion
Heights continue to rise this afternoon as upper level ridging
in the epac builds inland. North to northwest surface wind of 10
to 15 mph in the central valley has helped to dry the boundary
layer. Meanwhile upstream baroclinic cirrus with approaching
system will spread inland over the forecast area tonight.

Increasing high clouds overnight will help diminish longwave
radiation but lows tonight will still be chilly with mid 30s to
low 40s forecast in the central valley. The clouds and drier ams
in the central valley will likely hinder fog and frost
development.

Approaching pacific frontal system is modeled to begin
precipitation in the coastal and northern mountains tomorrow
morning. Precip then spreads across most of the forecast area
Sunday afternoon into evening. Model qpfs continue to differ with
nam-12 ec generating more precip over the shasta mountains than
gfs. With drier colder air in place up north, sounding wbz temps
in western shasta county suggest snow levels will initially be
around 2000 feet Sunday. Following the wetter models, this could
result in significant travel impacts along i-5 through the shasta-
siskiyou mountains. Thus have upgraded the watch to a winter storm
warning for western shasta. Snow levels expected to be higher
over the coastal range and amounts suggest an advisory most
likely. Precip not expected to start in the western plumas
mountains until tomorrow afternoon with snow levels 3000 to 3500
feet attm. Snow totals for that area point more towards advisory
criteria. Lighter snow amounts expected in the northern sierra
nevada.

Heaviest period of rain and mountain snow looks to be Sunday
evening and overnight. Models suggest colder lower level air
mixing out Sunday night as low level southerly flow increases.

1000-500 mb thicknesses rise overnight into Monday under moderate
700 mb waa. As result, snow levels expected to gradually increase
overnight into Monday.

Rain totals in the central valley range from around a tenth of an
inch to over three-quarters of an inch, highest in the northern
sacramento valley. For the foothills and mountains, values range
from around half an inch to 2 inches.

Precip diminishes by Monday afternoon as subsidence increases over
interior norcal. Upper ridging brings drier weather Monday night
into Tuesday. Some patchy morning fog may develop in the southern
portions of the sacramento valley and northern san joaquin
valley. Temperatures trend up early next week to near or slightly
above normal by Tuesday.

Pch
.Extended discussion (Wednesday through Saturday)
models are in pretty good agreement for the extended period. An
upper level low will move into southern british columbia later
Wednesday pushing a pacific front into norcal. This will spread
precip from northwest to southeast Wednesday night continuing into
Thursday afternoon. The trough axis will push through Thursday
into Friday and that will keep showers in the forecast primarily
over the higher elevations. This system will be a cold system and
models in agreement on dropping snow levels from 4000 to 5000 feet
early Thursday to possibly below 2500 feet Thursday night.

Mountain travel will likely be difficult on Thursday including i-5
by Thursday night.

A warm front will push into the pacnw Friday night into Saturday
and that will bring some precip chances to the northern part of
the CWA but better chances will remain north of us. A ridge will
build in for the second half of the weekend drying things out for
all of the cwa. Temperatures will be slightly below normal to
start out the forecast period but will return to near normal as
the ridge build in.

-cjm

Aviation
MainlyVFR conditions are expected over the next 24 hours. Local
areas of MVFR are possible overnight into early tomorrow due to
patchy fog but should be limited to low lying areas and river
valleys. Increasing high clouds overnight lower CIGS Sunday
evening. 10-15 knot winds during the afternoons becoming light
overnight.

-cjm

Sto watches warnings advisories
Winter weather advisory from 2 pm Sunday to 4 pm pst Monday for
mountains southwestern shasta county to northern lake county-
western plumas county lassen park.

Winter storm warning from 7 am Sunday to 10 am pst Monday for
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 mi46 min W 5.1 G 7 54°F 1022.3 hPa
PCOC1 - 9415144 - Port Chicago, CA 40 mi46 min WSW 6 G 7 51°F 52°F1022.3 hPa
SFXC1 - San Francisco Bay Reserve, CA 44 mi109 min WNW 7 55°F 1022 hPa39°F
MZXC1 - 9415102 - Martinez-Amorco CA 44 mi46 min WSW 8.9 G 9.9 53°F 52°F1022.6 hPa44°F
AAMC1 - 9414750 - Alameda, CA 52 mi52 min WNW 2.9 G 4.1 54°F 54°F1022.9 hPa

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Stockton, Stockton Metropolitan Airport, CA5 mi39 minNW 610.00 miFair49°F36°F61%1022.2 hPa

Wind History from SCK (wind in knots)
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Last 24hrW12W10W10W8W10W9W8W8W9NW10W9W7W8NW7NW9NW14NW16NW16
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1 day agoNW6N3NW12W12SW4W4W6W8W5W4W4CalmCalmW4W4W8NW10W11W13W15W11W12NW12NW10
2 days agoSE5SE6S6SW5SW6E5E4E8SE8S3S5S6S4SE8SE8S10SE7SE10SE10S7SE7SE7SW7S5

Tide / Current Tables for Borden Highway Bridge, San Joaquin River, San Joaquin River, California
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Borden Highway Bridge
Click for Map
Sat -- 02:54 AM PST     -0.02 feet Low Tide
Sat -- 07:17 AM PST     Sunrise
Sat -- 09:11 AM PST     3.33 feet High Tide
Sat -- 09:28 AM PST     Moonrise
Sat -- 02:56 PM PST     1.18 feet Low Tide
Sat -- 05:15 PM PST     Sunset
Sat -- 07:53 PM PST     3.74 feet High Tide
Sat -- 08:53 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.10.50.1-00.20.91.82.63.13.33.22.82.21.71.31.21.422.93.53.73.53.12.4

Tide / Current Tables for Brandt Bridge, San Joaquin River, California Current
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Brandt Bridge
Click for Map
Sat -- 01:04 AM PST     -1.23 knots Max Ebb
Sat -- 05:20 AM PST     0.01 knots Slack
Sat -- 07:17 AM PST     Sunrise
Sat -- 07:58 AM PST     0.64 knots Max Flood
Sat -- 09:28 AM PST     Moonrise
Sat -- 11:10 AM PST     -0.00 knots Slack
Sat -- 02:03 PM PST     -0.56 knots Max Ebb
Sat -- 05:08 PM PST     0.00 knots Slack
Sat -- 05:15 PM PST     Sunset
Sat -- 07:33 PM PST     0.57 knots Max Flood
Sat -- 08:53 PM PST     Moonset
Sat -- 09:51 PM PST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1.1-1.2-1.2-0.9-0.6-0.20.30.60.60.60.40.1-0.3-0.5-0.6-0.5-0.3-00.30.50.50.3-0.1-0.5

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 (21,6,7,8)
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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.