Sunday, November18, 2018 L-36.com


Marine Weather and Tides
Penn Valley, CA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:52AMSunset 4:50PM Sunday November 18, 2018 9:16 AM PST (17:16 UTC) Moonrise 2:43PMMoonset 1:53AM Illumination 81% Phase: Waxing Gibbous; Moon at 11 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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7 Day Forecast for Marine Location Near Penn Valley, CA
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location: 39.21, -121.2     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 181205
afdsto
area forecast discussion
national weather service sacramento ca
405 am pst Sun nov 18 2018

Synopsis
Dry with near to above normal daytime temperatures and cool
nights through early next week with smoke in the valley due to
the camp wildfire. Breezy northeasterly winds over the sierra
nevada today bringing increased fire weather concerns. Cooler
temperatures next week with a series of wet systems the middle to
end of next week. Snow over the higher elevations of the sierra
for possible travel difficulties during thanksgiving travel
weekend.

Discussion
High pressure ridge over the west coast bringing dry stable
conditions to the forecast area. A near 5 mb surface gradient from
reno to sacramento bringing localized breezy east winds to the
sierra and foothills. Jarbo gap in butte county is showing gusts
up into the 20s and combined with dry conditions will create
increased fire weather concerns. Therefore, red flag warning for
sierra and foothills will remain in place today. Lighter winds in
the central valley combined with stable conditions under the
ridge allowing smoke to hang in under the valley inversion. Winds
are not expected to be very strong in the valley today so smoke
is likely to hang in much of the day. Very little change is
expected in the weather pattern on Monday as the upper ridge axis
shifts just east of the state. Winds will be light under the ridge
so smoke from the camp fire will continue to be a issue depending
on smoke production from the fire. With ridge axis shifting east
of the region... Temperatures may drop a degree or two but
otherwise little change is expected. Upper ridge axis continues to
shift eastward on Tuesday an a significant pacific frontal system
approaches the coast. Overall airmass only changes slightly but
varying amounts of high cloud cover may bring temperature changes
Tuesday. Most significant change on Tuesday will be a shift to a
more onshore flow. With any luck this onshore flow will be strong
enough to scour out some of the valley smoke that has plagued the
valley for over a week. Initial frontal band moves onshore
Tuesday night bringing light rain to the coast range. Current
timing pushes the frontal band inland on Wednesday spreading rain
and snow across the entire forecast area during the day. Snow
levels drop low enough Wednesday afternoon that sierra passes may
be impacted during major holiday travel.

.Extended discussion (Thursday through Sunday)
a major pattern change is in effect for next week with a series
of wet storms from mid to late week as the persistent high
pressure ridge is finally displaced to the east. This will bring
periods of precipitation to the area, though with some breaks at
times. This will likely cause travel problems due to wet roads,
local ponding on roads with clogged storm drains, and accumulating
snow in the mountains during the thanksgiving travel period.

Potentially drier weather returns next weekend.

Aviation
Widespread MVFR with local ifr likely to continue in the central
valley the next 24 hours as smoke from the camp fire persists.VFR
conditions elsewhere. Generally light winds at TAF sites. Local
east wind gusts northern sierra nevada thru 18z.

Sto watches warnings advisories
Red flag warning until 4 pm pst this afternoon for northern
motherlode from 1000 to 3000 ft. Includes portions of nevada-
yuba-placer-amador and eldorado units-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.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SFXC1 - San Francisco Bay Reserve, CA 82 mi91 min Calm 35°F 1019 hPa32°F
PCOC1 - 9415144 - Port Chicago, CA 91 mi28 min SSW 2.9 G 5.1 44°F 56°F1020.1 hPa

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Marysville, Beale Air Force Base, CA14 mi77 minN 03.00 miSmoke36°F27°F70%1020 hPa
Auburn Municipal Airport, CA19 mi21 minE 310.00 miFair57°F23°F27%1020 hPa
Marysville, Yuba County Airport, CA21 mi23 minN 01.00 miOvercast with Haze41°F36°F82%1020.9 hPa
Lincoln Regional Karl Harder Field, CA22 mi21 minN 04.00 miFair43°F32°F66%1020 hPa

Wind History from GOO (wind in knots)
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Last 24hrCalmCalmE4SE3E4SE4E3E4SE3SE3E5E4E5E5E5CalmCalmCalmCalmCalmCalm----Calm
1 day agoCalmCalm------Calm--CalmSE4CalmSE3SE3SE3E4SE3CalmCalmCalmCalmCalmCalmCalmCalmCalm
2 days agoCalmCalmCalmE4CalmCalmCalmCalmCalmN3CalmNE3E4CalmNW3CalmCalmCalmCalmNW3W4W3CalmCalm

Tide / Current Tables for Sacramento, Sacramento River, 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 Sacramento #4, Sacramento River, California
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Sacramento #4
Click for Map
Sun -- 01:54 AM PST     Moonset
Sun -- 02:56 AM PST     2.01 feet High Tide
Sun -- 06:51 AM PST     Sunrise
Sun -- 10:43 AM PST     0.16 feet Low Tide
Sun -- 02:44 PM PST     Moonrise
Sun -- 03:53 PM PST     2.56 feet High Tide
Sun -- 04:50 PM PST     Sunset
Sun -- 11:40 PM PST     0.29 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.81.41.821.91.71.30.90.60.30.20.20.51.21.92.42.62.42.11.71.20.80.50.3

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Sacramento, CA (12,3,4,5)
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Ground Weather Radar Station Beal AFB, 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.