582
FXUS65 KREV 271901
AFDREV
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
1201 PM PDT SUN SEP 27 2026
KEY MESSAGES
* COOLER TEMPERATURES THIS WEEKEND WITH AFTERNOON BREEZES GUSTING
UP TO 25-30 MPH.
* A 20-50% CHANCE FOR LIGHT RAIN IN WESTERN NEVADA AND SNOW
SHOWERS ABOVE 9,000 FEET ACROSS THE EASTERN SIERRA TONIGHT
THROUGH MONDAY AFTERNOON.
* WARMING AND DRYING TREND TUESDAY THROUGH THE REMAINDER OF THE
WEEK.
DISCUSSION
IT'S STARTING TO FEEL A BIT LIKE FALL! BREEZY AFTERNOON WINDS UP
TO 25 MPH CAN BE EXPECTED AREAWIDE, LOCALLY HIGHER (UP TO 30-35
MPH) FOR MONO COUNTY. TEMPS DROP 5 DEGREES BELOW NORMAL TODAY,
EQUATING TO MID-70S ACROSS MUCH OF W NV AND THE LOWER VALLEYS OF
NE CA, AND MID-60S ACROSS THE SIERRA. SIMILAR TEMPERATURES
PREVAIL TOMORROW WITH CHILLY MORNING LOWS (NEAR FREEZING IN THE
SIERRA).
A TROUGH OFF THE NORTHERN CALIFORNIA COAST TODAY WILL TRACK
INLAND, BRINGING INCREASED CHANCES FOR RAIN AND HIGH MOUNTAIN SNOW
SHOWERS THIS EVENING AND INTO MONDAY AFTERNOON. CURRENT RADAR
SHOWS A BAND OF SHOWERS PROGRESSING OVER NE CA AND INTO NORTHERN
WASHOE COUNTY. AS THAT TROUGH GETS CLOSER, THOSE SHOWERS WILL MOVE
OVER THE BASIN AND RANGE OF W NV THIS AFTERNOON. THE HEAVIEST
PRECIP WILL OCCUR LATE TONIGHT, PRIMARILY SOUTH OF I-80, AND WILL
TRACK SOUTHWARD THROUGH MONDAY MORNING. RAINFALL TOTALS WILL
AMOUNT TO 0.1" OR LESS FOR THE BASIN AND RANGE AND MONO COUNTY.
WITH SNOW LEVELS AROUND 9000 FT, THE PEAKS OF THE WHITE MOUNTAINS
AND THE EASTERN SIERRA MAY SEE SNOW ACCUMULATIONS UP TO 1" (30-60%
CHANCE) BY MONDAY AFTERNOON.
SMOKE AND HAZE FROM THE DOME FIRE WILL CONTINUE TO IMPACT
COMMUNITIES ALONG US-395 FROM WALKER TO BRIDGEPORT. HOWEVER, AS
THAT TROUGH PROGRESSES SOUTHEASTWARD OVER CALIFORNIA, OUR TYPICAL
W/SW BREEZES WILL SWITCH TO N/NE MONDAY AFTERNOON, HELPING IMPROVE
AIR QUALITY CONCERNS. FOG REMAINS A POSSIBILITY FOR FOG-PRONE
SIERRA VALLEYS EARLY MONDAY MORNING, WHICH MAY BRING VISIBILITY
REDUCTIONS. REMEMBER TO USE YOUR LOW BEAMS AND TAKE IT SLOW IN
AREAS OF LOWER VISIBILITY.
TUESDAY AND BEYOND, WE WARM UP AND DRY OUT. AFTERNOON HIGHS SHOOT
BACK UP ABOVE NORMAL WITH LIGHT WINDS PREVAILING. MAYBE SUMMER
WANTS TO STICK AROUND...
-GIRALTE
AVIATION
VFR CONDITIONS FOR ALL TERMINALS, WITH CIGS PRIMARILY ABOVE 10,000
FT TODAY. A 10-30% CHANCE OF -RA FOR WESTERN NV SITES AFTER 06Z
TONIGHT. W/SW GUSTS OF 25 KTS CONTINUE TODAY, LOCALLY UP TO 30
KTS FOR KMMH. WITH GUSTY WINDS AT FL100, LOCALIZED MOUNTAIN WAVE
TURBULENCE AND LLWS IS POSSIBLE THIS EVENING, ESPECIALLY NEAR AND
OVER THE SIERRA.
-GIRALTE
REV WATCHES/WARNINGS/ADVISORIES
NV...NONE.
CA...NONE.
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