Monday, March25, 2019 L-36.com


Marine Weather and Tides
Soda Springs, 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 6:54AMSunset 7:18PM Monday March 25, 2019 5:06 PM PDT (00:06 UTC) Moonrise 11:47PMMoonset 9:08AM Illumination 75% Phase: Waning Gibbous; Moon at 20 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 252141
afdrev
area forecast discussion
national weather service reno nv
241 pm pdt Mon mar 25 2019

Synopsis
A series of late season storms will impact the region this week
with gusty winds, heavy mountain snow, and periods of valley rain.

The greatest impacts to travel in the sierra and western nevada
are expected late Tuesday night through Wednesday. Drier and
warmer conditions will likely return by the weekend.

Short term
The main changes in the active short term period were a continued
reduction of snow accumulations for the mid-range elevations
(5000-7000 feet) as more of the heavier precip rates are anticipated
for the daytime hours on Wednesday. However, above 7000 feet in
the sierra and above 5500 feet in northeast ca, we're still
expecting sufficient snowfall and travel impacts over higher
segments of most passes, so we will upgrade the watch to a winter
storm warning from late Tuesday evening through Wednesday evening.

Before this main storm, a leading trough accompanied by a narrow
feed of deeper subtropical moisture is moving slowly across north
central ca, having produced between 0.40-0.70" of rain along parts
of the i-5 corridor in the northern sacramento river valley. We've
also seen some locally strong wind gusts around 65 mph in parts
of northeast ca and briefly at us-395 red rock north of reno, and
50-60 mph gusts along i-580 south of reno. This isn't likely to be
a widespread strong wind event, so the ongoing special weather
statement will be continued.

While forcing weakens tonight as this precip moves into northeast
ca, it doesn't completely go away, with the narrow moisture feed
remaining intact so we're keeping the high precip chances and the
winter weather advisory in effect. This is a low end snow-producer
so we're not expecting much change from the original 2-5" snowfall
potential, mainly affecting higher northeast ca passes such as
fredonyer, yuba, and maybe ca-44 west of susanville. As this
moisture band edges slowly south by early Tuesday morning, up to
6" of snow may also accumulate near the sierra crest west of
tahoe, and maybe an inch or so down to lake level. Much of this
snow is likely to have a difficult time sticking to relatively
warm pavement, so we're not planning any advisories for the tahoe
area. A weak upper disturbance actually brings a bit more forcing
during the day Tuesday, with modest spillover rain showers into
parts of western nv, with a rain-snow mix continuing for the tahoe
basin and parts of northeast ca. Moderately gusty winds of 30-40
mph will continue, with sierra ridge gusts up to 70 mph (overall
speeds a bit lower than today).

After a break in most precip activity Tuesday evening, the main
wave of moisture associated with the storm system arrives late
Tuesday night, with peak precip rates likely during the day
Wednesday when forcing is maximized, along with favorable upper
jet dynamics lining up during the afternoon. Snowfall rates of
1-2" hour are likely to be maintained for the higher elevations,
with even briefly higher rates possible in the afternoon as
convection west of the crest becomes embedded within the main
moisture band. We're still anticipating storm totals of 1-2 feet
along the sierra crest above 7000 feet and 8-16" in northeast ca
above 5500 feet, although the high end possibility of 3 feet is
unlikely due to shorter storm duration. Below these elevations,
the amount of accumulating snow will drop off significantly, and
lake level areas around tahoe truckee may end up with only a
couple new inches on the ground as the snow tapers from north to
south Wednesday evening. Some of these areas may still have snow
falling for several hours, but not sticking to paved surfaces.

For western nv, periods of spillover moisture are expected at
times on Wednesday, with precip amounts generally between
0.25-0.50" around reno-carson-minden, and 0.25" or less for most
of west central nv. For parts of the basin and range, isolated
fast moving thunderstorm cells could form Wednesday afternoon as
the nose of the upper jet moves through, while milder temps in
these areas should allow for just enough instability for a few
lightning strikes, and locally heavier rainfall amounts. Rain may
end as a brief period of snow Wednesday evening above 5000-5500
feet in western nv but little or no accumulation is expected.

Gusty winds with speeds similar to today are anticipated,
although the increased presence of precip could reduce the
duration and extent of these winds. Mjd

Long term Thursday through Sunday...

a weak upper low crosses from west to east on Thursday, allowing
snow or snow pellet showers to continue across the eastern sierra
and bringing a chance for showers to western nv. Breezy winds will
also continue through Thursday. Precipitation is expected to be
light, but snow levels will be lower and some of the showers could
produce a quick inch or two of snow above 5000 feet. Thus, brief
impacts to travel are possible Thursday as these showers bring
variable conditions throughout the day. Below 5000 feet snow
pellets or a rain snow mix are possible.

Another weak upper low could bring yet another period of scattered
showers Friday, with the best chances north of i-80 during the
afternoon.

A high pressure ridge offshore should lead to partly cloudy skies
this weekend with warmer afternoon temperatures. Expect afternoon
temperatures in western nv in the 50s and 60s. However, there are
some indications a weak system could ride over the ridge by the
end of the weekend. This could bring a return of clouds and
possibly showers Sunday or Monday, especially for northern
california, but forecast confidence is very low. Jcm

Aviation
A series of storms will impact the region through at least Thursday.

Ifr MVFR conditions and mountain obscurations are likely in the
sierra tonight through Tuesday. At ktrk ktvl kmmh around an inch
of slushy snow is expected, with chances for light rain at
krno ktrk. Ceilings and visibilities will degrade further early
Wednesday morning as a second wave of heavier precipitation moves
into the region. Moderate snow is possible at ktvl ktrk kmmh and
mostly rain at krno kcxp.

Regarding winds, turbulence and occasional low level wind shear
will persist through this afternoon. Surface gusts peaking in the
30-40 kt range will also persist into this afternoon and then
should begin to decrease by 03z. Breezy turbulent conditions
return Tuesday afternoon, but are not forecast to be as strong as
today. But then for late Tuesday night through Wednesday, another
period of stronger winds and turbulence is likely. Jcm

Rev watches warnings advisories
Nv... Winter storm warning from 11 pm Tuesday to 11 pm pdt Wednesday
above 7000 feet in nvz002.

Lake wind advisory until 8 pm pdt this evening for lake tahoe in
nvz002.

Lake wind advisory until 8 pm pdt this evening for pyramid lake
in nvz004.

Ca... Winter weather advisory from 8 pm this evening to 8 am pdt
Tuesday above 5000 feet in caz071.

Winter storm warning from 11 pm Tuesday to 11 pm pdt Wednesday
above 5500 feet in caz071.

Winter storm warning from 11 pm Tuesday to 11 pm pdt Wednesday
above 7000 feet in caz072-073.

Lake wind advisory until 8 pm pdt this evening for lake tahoe 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 mi21 minSE 14 G 2010.00 miFair45°F24°F46%1017.3 hPa
Emigrant Gap, Blue Canyon Nyack Airport, CA20 mi74 minS 12 G 1710.00 miOvercast42°F27°F55%1018.3 hPa

Wind History from TRK (wind in knots)
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Last 24hrCalmSE6S7CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmS15
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1 day agoW9
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S5CalmCalmCalmCalmCalmCalmSE4S5CalmCalmCalmCalmCalm--Calm--CalmCalmS10SW8--
2 days agoSW12W6W6N4N4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmW4N3SW7W11SW9W9
G14
W8W10
G15

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
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Mon -- 06:10 AM PDT     0.46 feet Low Tide
Mon -- 07:01 AM PDT     Sunrise
Mon -- 10:14 AM PDT     Moonset
Mon -- 10:37 AM PDT     2.98 feet High Tide
Mon -- 07:22 PM PDT     Sunset
Mon -- 07:29 PM PDT     0.06 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.42.21.71.30.90.60.50.61.42.32.932.82.521.510.60.30.10.10.61.32

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 (20,4,5,8)
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Ground Weather Radar Station Reno, NV
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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.