Tuesday, January16, 2018 L-36.com


Marine Weather and Tides
Spanish Springs, NV

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 5:02PM Tuesday January 16, 2018 5:13 AM PST (13:13 UTC) Moonrise 7:55AMMoonset 5:56PM Illumination 0% Phase: New Moon; Moon at 29 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 Topaz, CA
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location: 38.67, -119.53     debug


Area Discussion for - Reno, NV
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Fxus65 krev 161028
afdrev
area forecast discussion
national weather service reno nv
228 am pst Tue jan 16 2018

Synopsis
A stronger and colder storm system will move into the
sierra and western nevada early Thursday morning through Friday.

Strong gusty winds on Thursday will precede the heavy mountain snow
and valley rains for late Thursday into Friday. There is potential
for snow down to all valley floors by Friday morning, with periods
of blowing snow and poor visibility for the sierra and western
nevada.

Short term
Showers are beginning across far northern california and
northwestern nevada this morning as the initial weak storm pushes
through the region. Light snow accumulations will be possible
above 7000 feet. Slick roads will be possible this morning, but
otherwise precipitation with this storm should be over by this
afternoon with no showers expected Wednesday.

Wednesday will be a brief break between storms, and a great
opportunity to double check that gates, fences, and other outdoor
items are secure ahead of the strong winds for Thursday.

Thursday and Thursday night, a strong front will drop south across
northeast california and western nevada. This cold front will bring
strong, gusty winds followed by moderate to heavy mountain snow,
with valley rain changing to snow behind the front.

* strong damaging winds Thursday: simulations continue to show the
potential for a downslope wind event along the lee of the sierra
for Thursday. Model soundings depict a stable layer around 600-
700mb with winds around 55-70 kts for multiple hours starting
early Thursday morning and strengthening through Thursday
afternoon. Widespread gusts to 55 mph are expected near and west
of highway 95 Thursday afternoon and evening, with gusts 65-75
mph possible in wind-prone areas along interstate 580 and
highway 395 between janesville and the mammoth airport. Strong
winds like this have been known to result in high profile
restrictions along with power outages from downed powerlines.

Areas of blowing dust may also be a concern ahead of the
precipitation. Winds should decrease substantially for most
areas with along the cold front as strong flow aloft will
promote good spillover.

* precipitation Thursday-Friday: this storm continues to look like
a moderate winter storm with a brief moisture tap. No major
changes have been made to the snowfall or QPF amounts. Winter
storm watch is in effect for lassen county south through the
lake tahoe area with 1-2 feet of snow possible above 6500 feet
and 3-6 inches possible down to 4500 feet. Strong winds and
powdery snow will result in blowing snow and hazardous low
visibilities Thursday night into Friday morning, especially for
the sierra passes. Dynamic cold front along with a strong upper
level jet will allow precipitation to spillover readily into
western nevada starting late Thursday evening and overnight
through Friday morning. Western nevada will see 0.25" to 0.50"
of precipitation while the basin and range could see around
0.10" to 0.25".

* snow levels lower valley snowfall: snow levels will drop
significantly behind cold frontal passage early Friday morning.

Upper level jet support along with the unstable conditions along
the cold front will allow for snowfall in western nevada. Several
inches of snowfall is possible west of interstate 580 highway 395
Friday morning, with some accumulation possible down to valley
floors. Friday morning's commute in western nevada may be dicey so
leave plenty of time to reach your destination.

Leftover snow showers will continue Friday afternoon into Saturday
morning as the cold core of the low moves across central and
southern nevada. -edan

Long term Saturday and beyond...

medium range models continue to bring in another storm to northern
ca nv Sunday-Monday. Forecaster confidence continues to rise
regarding this storm, bringing additional snowfall and strong
winds to the region. Snow levels will most likely start out much
lower leading to winter impacts to travel even down on the valley
floors. The details are still fuzzy as the models struggle to
iron out where the jet stream is going to set up, so we aren't
even going to speculate on snow amounts at this time.

That being said, there is very good confidence that we will see
another weak to moderate ar storm system into the region Sunday-
Monday, with active unsettled weather expected to continue through
next week and through the end of january. -hoon

Aviation
A weak storm system moving into the region will bring the threat
of light rain and mountain snow through 18z this morning, along
with MVFR cigs, mountain obscuration and icing. Mountain wave
turbulence is possible through 16z this morning as well,
especially along and east of the sierra crest with ridge winds up
to 50kts over the sierra.

A stronger winter storm will move into the region Thursday into
Friday. Thursday's winds will be severe, with wind gusts at area
terminals near 40-50kts, causing low-level wind shear and moderate
to severe mountain wave turbulence over the mountains. This storm
will also bring snow to the region Thursday night into Friday,
along with MVFR ifr cig vis and accumulating snow at all area
terminals, even an inch or two possible for krno-kcxp by Friday
morning. -hoon

Rev watches warnings advisories
Nv... Winter storm watch from Thursday afternoon through Friday
afternoon nvz002.

Ca... Winter storm watch from Thursday afternoon through Friday
afternoon caz071-072.

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
Reno, Reno Tahoe International Airport, NV17 mi19 minENE 410.00 miMostly Cloudy38°F32°F79%1022.2 hPa
Reno/Stead, NV18 mi39 minWSW 15 G 2310.00 miOvercast46°F26°F46%1024 hPa

Wind History from TVL (wind in knots)
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Last 24hrS3S3CalmCalmCalmCalmCalmE3NE63SW44SW5CalmCalmCalmCalmCalm3CalmCalmSE3S8
G16
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1 day agoCalmCalmS3S3S3CalmCalmNE3N4N5NE4NE3CalmCalmCalmCalmCalmS3S3CalmCalmCalmCalmSW4
2 days agoS3S4CalmSE4S4SE3Calm4NE6NE3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmS3Calm

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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Weather Map
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IR Satellite Image from GEOS
west_satellite

GOES Local Image of CentralWestCoast    EDIT
Geos

Wind Forecast for Reno, NV (8,2,3,4)
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Ground Weather Radar Station Reno, NV
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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.