A series of weak short wave troughs brushed through the region and brought periods of gusty north-northeast ridge winds to the region.
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The episode as NWS REV wrote it up.
A series of weak short wave troughs brushed through the region and brought periods of gusty north-northeast ridge winds to the region.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Reno, NV wrote its last area forecast discussion before the first event at Jan 21, 1:33 PM PST, 9 hours 17 minutes earlier.
Area Forecast Discussion
National Weather Service Reno NV
133 PM PST Sat Jan 21 2023
.SYNOPSIS...
An incoming cold front will result in increasing winds along the
Sierra ridgetops tonight with strong and gusty east winds
developing Sunday afternoon into Monday behind the front. Gusty
winds along with frigid wind chills could impact outdoor
recreation across the high Sierra through Monday. High pressure
will then return for next week with a warming trend expected, but
with continued cold mornings. Expect strengthening valley
inversions with potential air quality impacts.
&&
.DISCUSSION...
Clear skies, light winds, and ample snow cover allowed for a
frigid start to the day as morning low temperatures ran 15-20
degrees below average. The coldest valleys, such as Bridgeport
hit -27F this morning (30+ degrees below average). While cold and
below average temperatures will prevail again tonight, they won't
be quite as frigid as last night due an incoming cold front which
will increase winds and cloud cover.
Northwest winds will increase across the Sierra ridgetops tonight
with gusts reaching 60-80 mph at times while lower valleys
develop a brisk northwest wind around 10-15 mph. Wind prone
canyons across Mono County could see periodic gusts in the 35-45
mph range into early Sunday morning before winds begin their shift
out of the northeast to east Sunday afternoon into Monday. Gusts
across Sierra ridgetops will become strong out of the east during
this timeframe with peak gusts around 80 mph on the ridgetops
along the Carson Range while gusts right along the Sierra crest
ridgetops could see higher gusts in the 100-120 mph range as a
65kt 700mb jet pushes across the Sierra. Gusty winds could also
surface across Lake Tahoe on Sunday with easterly gusts of 30-40
mph possible with hazardous lake waters possible, particularly
across western shores.
A cold front sweeps through Sunday morning, which combined with
strong ridgetop winds, could introduce hazardous wind chills (-15
to -25F) for high elevation exposed ridgetops along the Sierra
crest. Be sure to be cognizant of the wind and wind chill if you
have outdoor recreation plans in the high Sierra through Monday.
Otherwise, expect increased high clouds in the morning with a
stray flurry across the Sierra possible Sunday morning.
A high pressure ridge will then build in behind the front next
week which will allow for a gradual warming trend, but overnight
lows could still be quite cold as valley inversion intensify.
This could lead to areas of freezing fog and stratus, particularly
in the vicinity of Mono Lake. Elsewhere, valley inversions could
lead to degraded air quality through the week as winds turn light
and valley mixing remains limited. Fuentes
&&
.AVIATION...
An approaching cold front will increase winds across the Sierra
ridgetops (FL100) tonight through Monday. Expect northwest winds
to start tonight with peak gusts up to 75 knots which will allow
for areas of mountain turbulence along and east of the Sierra.
Winds will then shift northeast to east behind the front on Sunday
with peak gusts reaching 90+kts across the Sierra crest into Monday
morning which turbulence favored along and west of the crest.
As far as surface winds, gusts late tonight-Sunday to 30 kts are
possible along the eastern Sierra, including KMMH with a steady
brisk north wind 10-15 kts at other locations Sunday. Surface
winds should relax Sunday night and Monday for valleys east of the
Sierra as the colder airmass settles into the area.
Fuentes/Hohmann
&&
.REV Watches/Warnings/Advisories...
NV...Lake Wind Advisory from 1 PM Sunday to 4 AM PST Monday for Lake
Tahoe in NVZ002.
CA...Lake Wind Advisory from 1 PM Sunday to 4 AM PST Monday for Lake
Tahoe in CAZ072.
&&The national radar mosaic for the moment the first event began.
1 high wind. Local standard time, as filed.
Mesonet station Slide located 0.9 mi ESE of Mount Rose Summit (DRI) in Washoe County reported a max wind gust of 85 mph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nevada in 2023Every state in 2023This day in weather historyWarnings in Nevada, January 2023
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1071315.