Wednesday, December12, 2018 L-36.com


Marine Weather and Tides
Elverta, 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 7:12AMSunset 4:46PM Tuesday December 11, 2018 9:59 PM PST (05:59 UTC) Moonrise 10:37AMMoonset 8:51PM Illumination 21% Phase: Waxing Crescent; Moon at 5 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- 806 Pm Pst Tue Dec 11 2018
Tonight..NW winds 5 to 15 kt.
Wed..N winds 5 to 15 kt with gusts up to 25 kt.
Wed night..SE winds up to 10 kt.
Thu..NE winds 5 to 15 kt.
Thu night..E winds 5 to 15 kt.
Fri..S winds 5 to 15 kt with gusts up to 25 kt. Rain likely.
Fri night..S winds up to 10 kt. A chance of rain.
Sat..SE winds up to 10 kt.
Sun..S winds 5 to 15 kt. Rain.
PZZ500 806 Pm Pst Tue Dec 11 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Northerly winds will increase overnight across the waters as a cold front moves through. Winds will diminish tomorrow night and into Thursday before turning southerly into Friday. A building northwest swell will impact the waters late this week result in hazardous conditions. A more significant northwest swell is then forecast to arrive Sunday into Monday.


7 Day Forecast for Marine Location Near Elverta, CA
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location: 38.71, -121.58     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 112300
afdsto
area forecast discussion
national weather service sacramento ca
300 pm pst Tue dec 11 2018

Synopsis
A weak weather system will brush across far northern california
tonight, otherwise dry weather will continue until the end of the
week when a more active storm pattern returns.

Discussion
Some light precip forecast across the far NRN zones overnight as a
short wave trof moves through the pac NW and across the NRN cntrl
rockys on wed. Clouds ahead of this feature are already moving into
shasta county this afternoon and will overspread much of the cwa
overnite, and may have an inhibiting factor in fog production tonite
by limiting radiational cooling. This feature will be E of our cwa
by Wed morning, and once again nwly flow behind the trof will tend
to "bank-up" the stratus fog on the E side of the vly, but it should
also spread wwd into the solano county area according to the low
level moisture profile of the ksuu bufkit. Once the low clouds
dissipate, it should be a sunny day as the higher level clouds pass
through the area as high pressure rebuilds over the region. North
winds will increase in the wake of this system on Wed becoming
locally breezy through portions of the sacramento valley. This
should result in a little adiabatic warming over the NRN sac vly for
example.

Dry weather pattern continues on thu, with a pacific frontal band
forecast to move into through norcal Fri fri nite, weakening as it
moves into the sierra. Reasonable confidence in general around 0.50"
in the shasta mtns and coastal range with 0.50" to 1.0" over the srn
cascade sierra north of the 80 50 corridor with amounts tapering
south of hwy 50. Snow levels AOA 4500-5000 ft will have some
minor travel impacts over the mtn passes then. Jhm
.Extended discussion (Saturday through Tuesday)
sat expected to be a mostly dry day, except for some light waa
precip possible over the sierra. Generally, norcal should be
between wx systems on Sat ahead of the long wave trof for Sun mon.

The amplitude of this system bodes well for precip, but
confidence is lower in amounts and timing as the longer waves
usually progress slower than progged. Compared to yesterday,
today's models seem to be about 6-12 hrs slower.

The us W coast ar landfall tool shows a weak ar (probability of ivt
>250 kg m s) over the pacific and forecast to reach the coast on
12 16 (sun) preceded by 2 other ars. The latter has greater
amplitude, ala the long wave trof, extending from 55n to 35n. There
is actually a little moderate ivt value (>500 kg m s) embedded
within the plume between 37n-43n, which is line with at least most
of norcal and our cwa. The plume is forecast to become parallel to
the coastline and erode weaken as it moves inland which doesn't bode
well for significant precip E of sierra, but will at least result in
a wetter storm for norcal then its predecessor on fri. The lack of
duration over our CWA and lack of an orthogonal trajectory to the
sierra will keep precip amounts lower than a more favorable
trajectory and orientation. Very early, preliminary estimates of
liquid precip for the sun-mon storm suggests 2-3 inches over shasta
county, and 1-2 inches over coastal range and the sierra especially
north of the 80 50 corridor, and over an inch in the NRN sac vly
tapering to two-thirds to three-quarters of an inch over the rest of
the vly. This system should cause greater snow impacts over the
sierra passes than the Fri system with snow levels down to around
5000-5500 kft. Daytime temperatures will remain near or a little
below normal throughout the extended period with occasional breezy
southerly winds as weather systems move through the area.

A strong upper level ridge building into norcal will bring an end
to most of the precip and a return to strong subsidence and vly
stratus fog on tue. Jhm

Aviation
Vfr conditions are expected through the evening, with fog
formation expected once more in the valley. Ifr to lifr conditions
possible south of marysville. Winds will be light and variable
overnight before southward winds in the valley increase tomorrow
afternoon to 15 knots, with gusts up to 25 knots.

Sto watches warnings advisories
None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SFXC1 - San Francisco Bay Reserve, CA 42 mi74 min SSE 2.9 43°F 1022 hPa38°F
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 49 mi41 min SE 1.9 G 4.1 50°F 1022.3 hPa
PCOC1 - 9415144 - Port Chicago, CA 51 mi41 min S 6 G 6 52°F 54°F1022.4 hPa
RCMC1 - 9414863 - Richmond, CA 70 mi41 min 55°F

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sacramento International Airport, CA1 mi66 minSSE 77.00 miPartly Cloudy49°F42°F77%1022 hPa
Sacramento, McClellan Airfield Airport, CA10 mi69 minSE 67.00 miFair48°F44°F87%1023 hPa
Sacramento Executive Airport, CA14 mi66 minSE 48.00 miFair48°F43°F83%1022.3 hPa
University Airport, CA16 mi64 minS 310.00 miFair46°F41°F82%1022.7 hPa
Lincoln Regional Karl Harder Field, CA18 mi64 minE 710.00 miFair45°F41°F87%1022 hPa
Sacramento Mather Airport, CA18 mi74 minE 510.00 miA Few Clouds46°F42°F87%1022.3 hPa

Wind History from SMF (wind in knots)
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Last 24hrNW6NW7NW4NW5NW5NE3CalmN3CalmCalmCalmCalmCalmS6SE4SE7S8SE6S6SE5S7CalmSE5SE7
1 day agoE4N3NW4CalmNW3CalmNW3W4NW5CalmNW4NW4NW6NW9N6N5N6NW7N6CalmW3W6W7NW7
2 days agoCalmCalmCalmSE3CalmSW4SW3CalmCalmCalmCalmW4W4CalmCalmNW4NW5CalmNW3CalmN3CalmCalmCalm

Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
Click for Map
Wed -- 05:57 AM PST     -0.06 feet Low Tide
Wed -- 07:14 AM PST     Sunrise
Wed -- 11:13 AM PST     Moonrise
Wed -- 11:28 AM PST     2.36 feet High Tide
Wed -- 04:45 PM PST     Sunset
Wed -- 05:53 PM PST     0.84 feet Low Tide
Wed -- 09:25 PM PST     2.54 feet High Tide
Wed -- 09:47 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.91.40.90.50.20-0.10.20.71.422.32.32.11.81.41.10.90.81.21.92.52.52.3

Tide / Current Tables for Clarksburg #4, Sacramento River, California
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Clarksburg #4
Click for Map
Wed -- 04:27 AM PST     -0.06 feet Low Tide
Wed -- 07:14 AM PST     Sunrise
Wed -- 10:19 AM PST     2.36 feet High Tide
Wed -- 11:12 AM PST     Moonrise
Wed -- 04:23 PM PST     0.84 feet Low Tide
Wed -- 04:45 PM PST     Sunset
Wed -- 08:16 PM PST     2.54 feet High Tide
Wed -- 09:47 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.30.80.40.1-0-00.411.62.12.32.321.71.310.90.91.42.12.52.52.32

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 (0,6,7,8)
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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.