Wednesday, February20, 2019 L-36.com


Marine Weather and Tides
Silver Springs, NV

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 6:41AMSunset 5:40PM Wednesday February 20, 2019 4:13 PM PST (00:13 UTC) Moonrise 8:13PMMoonset 8:38AM Illumination 98% Phase: Waning Gibbous; Moon at 16 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 Silver Springs, NV
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location: 39.25, -119     debug


Area Discussion for - Reno, NV
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Fxus65 krev 202256
afdrev
area forecast discussion
national weather service reno nv
256 pm pst Wed feb 20 2019

Synopsis
Heavier snow showers will shift to areas south of highway 50 by
this evening. Road surfaces that are wet this afternoon could
freeze and produce hazardous icy conditions through tonight. Light
snow showers with heavier lake-effect snow bands are likely for
Thursday. Cold conditions will continue into this weekend, with a
possible transition to a milder and wetter pattern next week.

Short term
Bands of snow have been moving across the tahoe basin and far
western nv, although accumulations have been minimal with sunshine
filtering through. The heaviest snow in the advisory areas and
wettest roads (and greater risk of re-freezing after sunset) so
far has moved across carson city and douglas county, and will
shift into southern lyon mineral counties thru early evening.

Other parts of the reno-sparks vicinity could still experience
some patchy ice this evening but chances for a widespread freezing
of roads are lower.

Most of the snow should diminish later tonight except for a few
lake-effect snow showers possible south of pyramid lake and
southwest of tahoe. However, by early Thursday morning some wrap
around moisture combined with a moist upslope flow could bring
areas of light snow back to the reno-carson-minden region.

Accumulations should be minimal (generally less than a half inch)
but it could still produce some slick conditions for the morning
commute. This flow continues through much of the day, so periods
of light snow could persist from reno-tahoe southward to mineral-
lyon-mono counties. Overall snow amounts are likely to remain
below advisory thresholds, but some enhanced snow amounts are
still likely south-southwest of tahoe pyramid walker lakes (with
2-6" or more in isolated locations), and the evening commute could
also be impacted by icy roads if all day light snow prevents some
drying. We are expecting a brisk north wind of 10-20 mph with
gusts 25-30 mph, especially over northwest and west central nv, so
if there are sufficient breaks in snow there should be a chance
for roads to dry out.

By Thursday night, the wrap around moisture is expected to
diminish with lake-effect snow bands also winding down. Light
upslope snow showers remain possible mainly south of us-50 and
into parts of alpine, mono and southwest mineral counties, with
minimal additional accumulations. Very cold temperatures are
expected with lows mainly in the single digits and teens, with
sub-zero lows for colder sierra valleys.

For Friday-Saturday, mainly dry conditions are expected except for
some light snow possibly returning to areas north of susanville-
gerlach as another low pressure drops south along the coast near
the us-canada border. This low will begin to tap moisture mainly
directed toward the pacific northwest, but then move slowly south
by Saturday night. How far south this moisture gets will become
a big factor in precip potential later in the weekend and into
next week, with a variety of potential scenarios as mentioned in
the long term section below. Mjd

Long term Sunday through Friday...

main changes were to increase chances for precipitation across the
region since operational simulations agree that it will be fairly
wet Sunday through Tuesday. Snow and rain amounts were also
increased to reflect the wetter pattern that may set up.

The pattern remains quite active for much of next week as the
eastern pacific ridge amplifies and allows systems to sneak beneath
it (undercut the ridge) into the west coast.

Something to keep in mind with the forecast: the story can change
from day to day with model fluctuations and changes with the current
weather pattern. While some simulations hint at some very strong
storms for next week, others do not, so we are here to keep you
informed as best as we can with the data that is available to us.

What can you do? Check the forecast discussion often! New model
simulations can lead to changes in the forecast, and if you have
travel plans then you should keep yourself as informed as possible.

Simulations are still showing the potential for a large, cold trough
to slowly migrate southward from the pacific northwest into northern
ca and nv Sunday-Tuesday. Some simulations show this trough
combining with sub-tropical moisture by Tuesday, which would result
in a lot of precipitation (rain and snow) for northern ca and nv.

Uncertainty is high for this scenario, especially since the ensemble
mean isn't really on board with that idea at the moment.

By Wednesday and Thursday, the moisture along with the dynamics
shift northward into or wa with warmer temperatures and lower
precipitation chances for the sierra and western nv.

Friday onward - the simulations continue to hint at an active
pattern with potential for wetter and windier conditions for early
march. Since the details are far too early to dig out, we
recommend keeping an eye out for updates. -edan

Aviation
Periods of snow will continue through late afternoon and early
evening at the main terminals, producing ifr conditions at times
mainly prior to 01z, although the sierra terminals may see more
-shsn with periods of ifr further into this evening.

For Thursday, periods of -shsn could continue or redevelop at all
of the main terminals. The main effect will likely be mountain
obscurations, although periods of MVFR or ifr remain possible
especially for the sierra terminals. Also, some lake enhanced snow
bands could bring CIGS vsby down lower if they pass over a
terminal (more likely over ktvl krno). Brisk north winds with
gusts to 20 kt are likely through much of Thursday.

The snow showers are projected to diminish Thursday night, then
dry and cool conditions with light winds are expected Friday. Mjd

Rev watches warnings advisories
Nv... Winter weather advisory until 3 am pst Thursday nvz001.

Winter weather advisory until 7 pm pst this evening nvz003.

Ca... None.

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
Fallon, Naval Air Station, NV20 mi77 minNE 1010.00 miMostly Cloudy35°F21°F57%1003 hPa

Wind History from NFL (wind in knots)
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Last 24hrS4S6SE6SE7SE9SE8SE8SE8S7SE5SE6SW3NW4W5W10
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1 day agoNW5NW5NW7N8N3N4N6N3NW5NW6NW7NW6--CalmW3--W4CalmSW7SW4W6SW75W5
2 days ago5SW7NE4NW5N7NW8NW7NW6NW4NW6N5NW5NW6NW6N5NW6NW7N6N7N8N10N7NE10N9

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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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 Reno, NV (19,4,5,8)
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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.