Westwood, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

185
FXUS65 KREV 111014
AFDREV

Area Forecast Discussion
National Weather Service Reno NV
214 AM PST Wed Dec 11 2024

.SYNOPSIS...

* Quick hitting cold storm to bring light snow and travel impacts
  to the Sierra Wednesday night into Thursday morning. Dusting of
  snow into W.Nevada foothills, with commute impacts possible.

* Wetter but warmer storm Friday night and Saturday with snow
  impacts for mountains and rain with gusty winds for valleys.

* Third storm possible Monday into Tuesday which looks to be
  another quick moving and colder system which could yield
  additional travel impacts along Sierra passes.

&&

.DISCUSSION...

Our pattern will begin to turn more active for the remainder of
the week as a series of storms create likely travel impacts in
the Sierra Wednesday night into Thursday followed by a wetter
system Friday night into Saturday.

STORM 1: Wednesday Night - Thursday

* This storm, the colder of the two systems this week, has been
  trending wetter over the past 48 hours. Snowfall will primarily
  impact the Sierra, with light snow showers possible down to
  western Nevada valleys during the Thursday morning commute.

* Snow levels will reside around 4,000-5,000 with impacts on
  Sierra passes concentrated in a 4-6 hour period centered around
  4-8 AM, with snowfall rates reaching 1/hour. Snow rates will
  decrease by late morning, with total accumulations of 4-8 inches
  on the Sierra crest, and 1-4 inches around lake level and in
  Mono County, including June Lake and Mammoth Lakes.

* Western Nevada valleys could see light snow showers during the
  Thursday morning commute which could see minor accumulations
  above about 5000-5500. 40-50% chances of a half inch of snow
  particularly through Washoe Valley, western foothills, and the
  North Valleys.

* Gusty southwest winds are possible early Thursday morning with
  gusts near 30-35 mph and up to 45 mph through wind prone areas,
  particularly through the US-395 corridor in Mono County.

STORM 2: Friday Night - Saturday

* This will be a slightly wetter and warmer system with snow
  levels rising around 6,000-7,500` along the Sierra. Impacts
  again will concentrate in the Sierra with storm total snowfall
  increasing to around 8-12" along the Sierra crest . Higher
  uncertainty with snow totals for lower elevation Sierra
  communities but currently projecting 2-6".

* Mainly looking at rainfall for far western Nevada valleys on
  Saturday with spillover rain of about 0.20-0.40".

* Gusty conditions are possible Saturday morning with gusts
  generally reaching 30-40 mph with wind prone locations along
  US-395 through Lassen county reaching 40-50 mph. Sierra
  ridgetops could exceed 100 mph.

Early Next Week:

* Rain and snow will taper off through the day on Sunday with
  another quick moving storm behind it on Monday.

* This storm is looking similar to our system on Thursday with a
  quick hit of Sierra snowfall with lower snow levels. Early
  projections put about 6 inches along the Sierra crest which
  could create another round of Sierra travel impacts. Fuentes

&&

.AVIATION...

* VFR conditions will prevail today but an incoming storm system
  will begin to increase mountain wave turbulence along and east
  of the Sierra with FL100 southwest wind gusts of 50-70kt
  possible this afternoon and evening.

* Quick hitting storm is likely to bring snow accumulations to
  Sierra terminals such as SVE, TRK, TVL, MMH between 6z-18z/Thurs,
  with a 50-70% chance of 1". High end amounts (90th percentile)
  of 3-4".

* Light snow showers will be possible down to western Nevada
  terminals with a 10-20% chance of 0.1" of snow at KRNO, KCXP,
  and KMEV Thursday morning with KRTS seeing a 40-50% chance of up
  to 0.5" of snow. Fuentes/Chris

&&

.REV Watches/Warnings/Advisories...
NV...Winter Weather Advisory from 10 PM this evening to 4 PM PST
     Thursday NVZ002.

CA...Winter Weather Advisory from 10 PM this evening to 4 PM PST
     Thursday CAZ071>073.

&&

$$