Tuesday, March20, 2018 L-36.com

Marine Weather and Tides
Soda Springs, CA

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
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.

Sunrise 7:00AMSunset 7:14PM Tuesday March 20, 2018 6:30 PM PDT (01:30 UTC) Moonrise 8:09AMMoonset 9:47PM Illumination 18% 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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7 Day Forecast for Marine Location Near Soda Springs, CA
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location: 39.31, -120.33     debug

Area Discussion for - Reno, NV
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Fxus65 krev 202138
area forecast discussion
national weather service reno nv
238 pm pdt Tue mar 20 2018

A period of light valley rain and higher elevation snow is expected
this evening and tonight. A much stronger atmospheric river type
storm pushes into the region Wednesday night through early Friday
morning. This will bring periods of heavy valley rain and heavy
sierra snow along with gusty winds. The weekend will be colder with
snow showers possible down to all valley floors.

Short term
The first system to deal with tonight continues to indicate
enough warm air advection to generate light precipitation from the
tahoe basin northward this evening and tonight. There is a swath
of heavier precipitation indicated north of highway 44 to about
the lassen modoc county line. While soundings from the area do not
support snow much below 6000 feet north of susanville... It is not
out of the question that higher intensity precipitation could
briefly drag the snow levels lower and create some minor
accumulations north of a line from susanville to gerlach. In the
tahoe area snow levels should remain mostly above 7500 feet.

The other part of tonight's weather is the initial push of the
deep moisture plume into mono alpine counties. This will generate
mainly upslope flow as upper level forcing is minimal. Snow levels
will be around 8000 feet or higher with QPF generally around 0.20
inches or less... So snow accumulations are not expected to be
significant except near the sierra crest.

There may be some very light warm air advection precipitation in
western nevada tonight... But the main event for there will be

The models have continued trending rather dry for areas east of
the sierra Wednesday as a defined break develops. Continued
upslope flow in the sierra and increasing forcing from an
approaching trough across northeast california will mean continued
chances for light rain and high elevation snow through
Wednesday... But accumulations are expected to be light.

Gusty winds develop Wednesday as well... But they are not as strong
as we earlier thought. This is mainly due to decreased flow aloft
and the jet retreating to the north a bit more.

The jet retreating north has two other effects: decreased chances
for spill over in western nevada and increased QPF potential in
the sierra and northeast california.

Much like yesterday... The model solutions are displaying a
coupled jet structure by Wednesday evening into Thursday that
stretches in a south-southwest to north-northeast orientation
through the sierra into northeast california. That feature... And
its orientation... Means increased potential for higher QPF as well
as slightly higher snow levels. We could see 2 to 3 inches of
rain in western lassen... Central plumas and sierra counties...

and below 7500 feet in the tahoe basin. In excess of 3 inches is
possible in mono county below 7500 feet. That leads to increased
runoff potential so we have issued flood watches from northeast
california south through the tahoe basin into mono county.

The jet orientation also leads us to believe spill over potential
will be a bit more limited so QPF was reduced slightly in the
valleys of western nevada. Make no mistake... Western nevada will
still get rain Thursday... Just maybe not as much as we initially

As the upper low edges closer Thursday evening and overnight...

cold air filters into the region. Snow levels will fall by early
Friday morning... But by then most of the moisture will have pushed
to the south. The best snowfall potential remains above 7000-7500
feet in the tahoe basin and above 7500-8000 feet in mono county.

Multiple feet of heavy wet snow is likely in both locations so
winter storm watches were upgraded to warnings.

Long term Friday through next week...

by Friday, a brief break in precipitation is expected although
breezy conditions are likely in advance of the next storm system.

This system is weaker than the Wednesday-Thursday storm, but air
mass will be cold enough for precipitation to fall as snow in lower
elevations Friday night, with the best snow chances in western nv
along the us-395 corridor and north of i-80, and in eastern ca from
tahoe northward. Preliminary snowfall projections for Friday night:
2-6" for lower elevations of northeast ca far northwest nv tahoe
basin, with up to 10" possible near the sierra crest. For far
western nv, up to 1" or so could fall around reno-carson-virginia
city by early Saturday morning.

For this weekend, yet another shortwave rotates around the main low
as it moves inland across northern parts of ca nv, keeping a chance
for snow showers with temperatures remaining well below average
(highs mainly in the 40s in lower elevations mid-upper 30s near the
sierra). While snow accumulations will generally be limited and
sparse (especially during the daytime), increased instability
associated with the upper low cold pool aloft could lead to bands of
heavier snow showers Saturday evening night in parts of northeast
ca, the tahoe basin, and even into the urban areas of far western

From Sunday night through much of next week, upper level ridge
building off the west coast will likely shut down the storm door for
the sierra and western nv. Temperatures will begin a gradual warming
trend, although light northeast flow with limited mixing will keep
highs below average at least through Tuesday. Mjd

Flying conditions deteriorate tonight through Thursday as a
significant storm makes its way into the forecast area. Ceilings
lower tonight as light precipitation develops north of the tahoe
basin and also south into mono county. Some lowering of
ceilings... But stillVFR... Is possible east of the sierra tonight.

Winds increase ahead of the main system Wednesday... Especially
across western nevada. Gusty winds over the ridges should create
turbulence while southerly low level winds increase for the
terminals east of the sierra. Low level wind shear is likely at
krno by Wednesday afternoon due to directional shear.

Ceilings and visibilities lower further Wednesday evening and
overnight as the main brunt of the rain associated with this
storm begins pushing into the sierra and northeast california;
MVFR and occasional ifr conditions are likely through Thursday
afternoon before snow levels start to fall. Lower ceilings are also
likely in western nevada Thursday as spill over rain develops.

Falling snow levels will mean widespread ifr conditions in the
sierra late Thursday night into early Friday with some slushy
accumulations on the runways of the sierra terminals. A weak
system Friday night into Saturday could bring snow showers to the
western nevada valley floors.

Rev watches warnings advisories
Nv... Lake wind advisory from 8 am to 5 pm pdt Wednesday for lake
tahoe in nvz002.

Winter storm warning from 5 pm Wednesday to 5 am pdt Friday
above 7000 feet in nvz002.

Flood watch from Wednesday evening through late Thursday night
below 7000 feet in nvz002.

Lake wind advisory from 11 am Wednesday to 8 pm pdt Thursday for
pyramid lake in nvz004.

Ca... Flood watch from Wednesday evening through late Thursday night

Flood watch from Wednesday afternoon through late Thursday night
below 7500 feet in caz073.

Winter storm warning from 5 pm Wednesday to 5 am pdt Friday
above 7500 feet in caz073.

Lake wind advisory from 8 am to 5 pm pdt Wednesday for lake
tahoe in caz072.

Winter storm warning from 5 pm Wednesday to 5 am pdt Friday
above 7000 feet in caz072.

Flood watch from Wednesday evening through late Thursday night
below 7000 feet in caz072.

For more information from the national weather service visit...

http: weather.Gov reno

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Truckee-Tahoe, CA10 mi1.8 hrsSSE 810.00 miOvercast39°F33°F81%1014.2 hPa
Emigrant Gap, Blue Canyon Nyack Airport, CA20 mi39 minSSE 7 G 171.75 miLight Rain Fog/Mist39°F39°F100%1012 hPa

Wind History from TRK (wind in knots)
Last 24hrCalmCalmS3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmN5--N8SE8S6--SE8SE9
1 day agoCalmCalmCalmCalmCalmCalmSE3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSE3W8SW6W8--S6Calm
2 days ago--SE3--CalmCalmCalmCalmCalmCalmCalmCalmCalm--------SW2------------W4

Tide / Current Tables for Sacramento, Sacramento River, California
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Click for MapNote: These data apply only during low river stages.

Tue -- 04:56 AM PDT     0.28 feet Low Tide
Tue -- 07:09 AM PDT     Sunrise
Tue -- 09:14 AM PDT     Moonrise
Tue -- 09:25 AM PDT     3.02 feet High Tide
Tue -- 05:47 PM PDT     0.19 feet Low Tide
Tue -- 07:18 PM PDT     Sunset
Tue -- 10:21 PM PDT     2.50 feet High Tide
Tue -- 10:50 PM PDT     Moonset
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
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Tue -- 04:56 AM PDT     0.28 feet Low Tide
Tue -- 07:09 AM PDT     Sunrise
Tue -- 09:14 AM PDT     Moonrise
Tue -- 09:26 AM PDT     3.01 feet High Tide
Tue -- 05:47 PM PDT     0.18 feet Low Tide
Tue -- 07:18 PM PDT     Sunset
Tue -- 10:21 PM PDT     2.50 feet High Tide
Tue -- 10:50 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Weather Map and Satellite Images
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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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Wind Forecast for Reno, NV (21,6,7,8)
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Ground Weather Radar Station Reno, NV
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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.