358
FXUS65 KREV 261921
AFDREV
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
1221 PM PDT SAT SEP 26 2026
KEY MESSAGES
* COOLER TEMPERATURES THIS WEEKEND WITH AFTERNOON BREEZES GUSTING
UP TO 25-30 MPH.
* 20-50% CHANCE FOR LIGHT RAIN AND HIGH ELEVATION SNOW SHOWERS
(>9,000') ACROSS THE EASTERN SIERRA AND WESTERN NEVADA SUNDAY
NIGHT INTO MONDAY AFTERNOON.
* RIDGING RETURNS TUESDAY, LEADING TO A WARMING AND DRYING TREND
THROUGH NEXT WEEKEND.
DISCUSSION
HIGH TEMPERATURES TODAY WILL BE NEAR NORMAL, WHICH EQUATES TO LOW
80S FOR VALLEYS AND LOW 70S FOR SIERRA COMMUNITIES. THOSE TEMPS
DROP 5-10 DEGREES FOR SUNDAY AND MONDAY, WITH HIGHS IN THE MID TO
LOW 70S FOR VALLEYS AND MID 60S FOR SIERRA COMMUNITIES. OVERNIGHT
LOWS MONDAY AND TUESDAY MORNINGS WILL FLIRT WITH NEAR FREEZING FOR
COLDER SIERRA VALLEYS (TRUCKEE, MARTIS VALLEY, BRIDGEPORT, ETC.).
AFTERNOON BREEZES WILL GUST UP TO 25-30 MPH BOTH TODAY AND
TOMORROW, WITH LOCALLY HIGHER (40+ MPH) ALONG RIDGETOPS. THESE
SOUTHWESTERLY BREEZES WILL HELP TRANSPORT SMOKE AND HAZE FROM THE
DOME FIRE IN YOSEMITE. EXPECT REDUCTIONS IN AIR QUALITY PRIMARILY
DOWN THE US-395 CORRIDOR FROM WALKER TO BRIDGEPORT. HOWEVER, SAID
AIR QUALITY REDUCTIONS ARE DEPENDENT ON SMOKE PRODUCTION. FOR
DETAILS ON AIR QUALITY, PLEASE VISIT WWW.FIRE.AIRNOW.GOV.
A TROUGH OFF THE PACNW COAST WILL SAG SOUTHWARD AS WE GET INTO
SUNDAY, WHICH INTRODUCES PRECIPITATION CHANCES ACROSS MUCH OF W NV
AND THE SIERRA LATE SUNDAY NIGHT INTO MONDAY AFTERNOON. THE
PRIMARY PRECIP TYPE WILL BE LIGHT RAIN (20-50% CHANCE), WITH UP TO
HALF AN INCH OF SNOW POSSIBLE (40-60% CHANCE) ABOVE 9000' FOR THE
EASTERN SIERRA OF MONO COUNTY AND THE WHITE MOUNTAINS. RAIN TOTALS
WILL AMOUNT TO 0.1" OR LESS, PRIMARILY SOUTH OF I-80, WITH THE
MOST LIKELY TIME FRAME FOR SHOWERS DURING THE MONDAY AM COMMUTE.
THERE'S A 20-40% CHANCE FOR PATCHY FOG FOR TRUCKEE AND ADJACENT
AREAS MONDAY MORNING, THOUGH THIS IS DEPENDENT ON IF THERE WILL
BE SHOWERS OVER THE AREA OR NOT.
RIDGING RETURNS BY TUESDAY, HELPING WARM TEMPERATURES TO ABOVE
NORMAL VALUES AS WE CLOSE OUT SEPTEMBER. DRY CONDITIONS WITH LIGHT
WINDS ARE EXPECTED TO PREVAIL THROUGH AT LEAST NEXT WEEKEND.
-GIRALTE
AVIATION
VFR CONDITIONS TODAY WITH SW WIND GUSTS OF 20-25 KTS. FL100 WINDS
WILL REMAIN ELEVATED TODAY, WHICH MAY PRODUCE BRIEF PERIODS OF
MOUNTAIN WAVE TURBULENCE. OTHERWISE, CIGS WILL STAY PRIMARILY
ABOVE 20,000 FT AGL.
-GIRALTE
REV WATCHES/WARNINGS/ADVISORIES
NV...NONE.
CA...NONE.
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