241
FXUS65 KREV 030842
AFDREV

Area Forecast Discussion
National Weather Service Reno NV
1242 AM PST Wed Dec 3 2025

.KEY MESSAGES...

* Breezy in the mountains today, with sub-zero wind chills on ridges
  and choppy waters on Tahoe.

* Cold temperatures today with a slight warming trend through
  Friday. Warming amplifies this weekend, with above normal
  temperatures favored into next week.

* No significant storms through at least mid-next week, but a few
  light rain or snow showers are possible Friday or Saturday along
  the Oregon border.

&&

.DISCUSSION...

With the ridge positioned well off of the West Coast, the
northeastern periphery of the ridge has settled overhead of
northeastern California and northwestern Nevada. What does this mean
for us? The positioning is favorable to allow shortwave troughs to
graze the region. The dry cold front that passed through the area
overnight is leaving behind some relatively colder air and easterly
breezes for today. Be aware of choppy lake waters on Lake Tahoe
today, particularly along the western shores. If you have plans to
be up in the mountains, be sure to bundle up since ridge winds could
approach 60 mph in and around the Tahoe Basin, bringing wind chills
below zero. Further south in Mono County, easterly ridge gusts will
reach 35-40 mph. For western Nevada valleys, gusts will be more
typical, around 10-15 mph.

The ridge will influence the airmass once again on Thursday, as
warming temperatures return. The benign weather pattern will bring
light winds as yet another trough sets up to our north ahead of the
weekend. Rain and snow may be found this weekend along the Oregon
border, while elsewhere only clouds will be in the sky. Very little
accumulation is expected, with only moderate confidence that
anything more than a few hundredths will reach the ground.

Into the next work week, the ridge nudges a bit inland, bringing
more of it`s influence of warm and dry weather. At the same time,
the ridge flattens a bit along the northern California border,
keeping us from realizing a stronger late season warmup. Even so,
highs for western Nevada valleys look to be around 15 degrees above
seasonal averages. Sierra valleys will also be hovering in the low
60s, which is almost 20 degrees above normal for early December.
Beyond, guidance is hinting at a system into the following weekend,
but low confidence until better agreement and alignment emerges.
HRICH

&&

.AVIATION...

* Easterly breezes will induce turbulence along and west of the
  Sierra today, bringing LLWS over the range. Gusts will be around
  15 kts for KRNO, KCXP, KMEV. Sierra valley terminals KTRK/KTVL
  could see gusts approach 20 kts this morning. Winds will taper
  after sunset.

* VFR conditions prevail through today and Thursday, with cloud
  cover keeping fog from forming at KTRK overnight. HRICH

&&

.REV Watches/Warnings/Advisories...
NV...Lake Wind Advisory until 10 AM PST this morning NVZ002.

CA...Lake Wind Advisory until 10 AM PST this morning CAZ072.

&&

$$