244
FXUS65 KREV 272038
AFDREV
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
1238 PM PST TUE JAN 27 2026
KEY MESSAGES
* A WEAK WEATHER SYSTEM MAY BRING CHANCES FOR LIGHT SNOW SHOWERS,
MAINLY ALONG THE SIERRA CREST TONIGHT INTO WEDNESDAY MORNING.
* DRY CONDITIONS CONTINUE WEDNESDAY ONWARD WITH HIGH PRESSURE
RETURNING TO THE AREA.
* A SLOW, GRADUAL WARMING TREND INTO THIS WEEKEND WILL BRING ABOVE
AVERAGE TEMPERATURES BY SATURDAY.
DISCUSSION
A SHORTWAVE TROUGH BRINGING A QUICK ROUND OF SNOW SHOWERS IS
STILL ON TRACK TO MOVE IN THE SIERRA AND NE CA. PEAK PRECIP
PROBABILITIES EARLY WEDNESDAY MORNING WILL BE AROUND 40-50% FOR
SURPRISE VALLEY, PLUMAS COUNTY, AND WESTERN LASSEN COUNTY, DOWN TO
THE WESTERN SLOPES OF TAHOE. LESSER CHANCES OF UP TO 30% WILL BE
SEEN FOR ALPINE COUNTY UP THROUGH TAHOE AND THROUGH THE EASTERN
PORTIONS OF LASSEN COUNTY. SOME AREAS OUT IN PERSHING AND NORTHERN
WASHOE COUNTIES ALSO HAVE A 30% CHANCE TO SEE A LIGHT SNOW
SHOWER. MAX QPF VALUES WILL RANGE FROM 0.10-0.20" FOR THIS MINI
STORM AND SINCE SNOW LEVELS ARE GOING TO HANG AROUND 5000 FEET OR
BELOW, SNOW AMOUNTS FOR THE HIGHEST SIERRA PEAKS LOOK TO BE AROUND
A TRACE FROM ALPINE COUNTY NORTHWARD, WITH ONLY 1-2 INCHES
POSSIBLE IN THE HIGHEST TERRAIN IN WESTERN LASSEN OVER TO PERSHING
COUNTY. WITH SNOW LEVELS THAT LOW, BE AWARE THAT THE MORNING
COMMUTE WEDNESDAY MORNING MAY BE SLICK AND ICY ACROSS SIERRA
PASSES, ESPECIALLY DONNER. SOUTHWEST WINDS WON'T POSE MUCH OF AN
ISSUE EITHER, ONLY SIERRA RIDGES MAY GET UP TO 60-70 MPH WEDNESDAY
MORNING. ONCE THIS SYSTEM MOVES OUT BY MIDDAY WEDNESDAY, THE
CLOUDS WILL DISSIPATE AND WE'LL RETURN TO OUR USUAL DRY AND CALM
CONDITIONS.
WEDNESDAY ONWARD, WE'LL SEE HIGH PRESSURE MOVE IN AGAIN AND KEEP
US DRY AND SUNNY THROUGH THIS WEEKEND. HIGH PRESSURE WILL MOVE IN
LATE THIS WEEK, INCREASING TEMPERATURES TO NEAR 60 IN LOWER
VALLEYS AND UPWARDS OF 55 IN SIERRA COMMUNITIES BY SATURDAY. THIS
WARM UP WILL BE AROUND 10 DEGREES ABOVE NORMAL FOR THIS TIME OF
YEAR. MORNINGS WILL STILL BE PRETTY CHILLY, THOUGH. MORNING TEMPS
THIS WEEKEND WILL BE AROUND 30-35 FOR LOWER VALLEYS AND 25-30 FOR
SIERRA VALLEYS. AFTER THIS WEEK, OUR NEXT BEST CHANCE FOR PRECIP
LOOKS TO BE AROUND THE 1ST OR 2ND OF FEBRUARY, BUT CONFIDENCE
REMAINS LOW THIS FAR OUT.
-JUSTIN
AVIATION
VFR CONDITIONS AND LIGHT WINDS WILL BE THE MAIN STORY THROUGH
ABOUT 06Z TONIGHT. A BRIEF WAVE OF LIGHT SNOW SHOWERS WILL MOVE IN
TONIGHT AND EXIT TOMORROW MORNING AROUND 14-15Z. KTRK/KTVL/KSVE
HAVE A 40- 50% CHANCE TO SEE SNOW SHOWERS, WITH ACCUMULATIONS UP
TO 1". MVFR CONDITIONS ARE POSSIBLE FOR THE SIERRA TERMINALS, BUT
ARE UNLIKELY DUE TO THE INTENSITY OF THE SHOWERS.
FL100 WINDS TONIGHT WILL PEAK AROUND 09Z AT 40-45KT OUT OF THE
SOUTHWEST, ALTHOUGH SIERRA RIDGES COULD SEE GUSTS UP TO 60KT.
EXPECT LLWS AND TURBULENCE OVER THE SIERRA AND SIERRA FRONT
TONIGHT THROUGH ABOUT 15Z. DRY CONDITIONS AND LIGHT WINDS ARE
EXPECTED THE REST OF WEDNESDAY.
-JUSTIN
REV WATCHES/WARNINGS/ADVISORIES
NV...NONE.
CA...NONE.
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