175
FXUS65 KREV 261903
AFDREV
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
1203 PM PDT MON OCT 26 2026
KEY MESSAGES
* GUSTY SOUTHWEST WINDS OF 30-40 MPH WITH SIERRA RIDGETOP GUSTING
UPWARDS OF 70-80 MPH THIS AFTERNOON.
* ISOLATED LIGHT RAIN AND MOUNTAIN SNOW SHOWERS ACROSS FAR
NORTHEAST CALIFORNIA TODAY AND TOMORROW WITH DRY CONDITIONS FOR
THE REMAINDER OF THE AREA THROUGH THURSDAY.
* INCREASING CHANCES FOR UNSETTLED WEATHER, COOLER TEMPERATURES,
AND WIDESPREAD PRECIPITATION LATE WEEK INTO THE WEEKEND.
DISCUSSION
WIND GUSTS ALONG THE HIGHEST PEAKS OF THE TAHOE BASIN HAVE ALREADY
EXCEEDED 70 MPH TODAY. THESE GUSTS WILL DECREASE THROUGHOUT THE
DAY, BUT WILL REMAIN OVER 50 MPH UNTIL SUNSET. VALLEY WINDS RANGE
FROM 30-40 MPH TODAY, PRODUCING 2-4 FEET WAVE HEIGHTS ON LAKE
TAHOE AND 1-3 FEET ON PYRAMID LAKE. AS SUCH, A LAKE WIND ADVISORY
IS IN EFFECT UNTIL 6PM TONIGHT. TODAY WILL BE THE WINDIEST DAY OF
THE WEEK, WITH CALMER CONDITIONS TUESDAY AND BEYOND.
LIGHT SHOWERS ALONG THE OR BORDER TODAY HAVE DISSIPATED, THOUGH
THERE ARE ADDITIONAL CHANCES (10-15%) IN THE SAME AREA TOMORROW
MORNING. SNOW LEVELS ARE AROUND 6000 FT FOR THE WARNER MOUNTAINS
SO ANY PRECIP THAT FALLS WEST OF THE SURPRISE VALLEY WILL BE SNOW.
CONFIDENCE IN ACCUMULATIONS REMAINS LOW AS IT DEPENDS WHERE THESE
ISOLATED SHOWERS WILL DEVELOP.
DRY CONDITIONS PREVAIL FOR THE REMAINDER OF THE AREA THROUGH AT
LEAST THURSDAY, WITH AFTERNOON HIGHS IN THE LOW TO MID 60S FOR
VALLEYS AND LOW TO MID 50S FOR SIERRA COMMUNITIES. AN INCOMING
PATTERN CHANGE FRIDAY AND INTO THE WEEKEND WILL PRODUCE COOLER
TEMPERATURES AND SHOWERY CONDITIONS AS A LOW DROPS OFF THE COAST
OF THE PACNW. HOWEVER, THERE IS PLENTY OF MODEL DISAGREEMENT ON
JUST HOW WET THIS SYSTEM MAY BE WITH RAINFALL TOTALS RANGING FROM
0 INCHES TO 0.25-0.75 INCHES. SNOW LEVELS MAY DROP AS LOW AS 5000
FT SATURDAY AFTERNOON (10TH PERCENTILE), WITH THE 50TH PERCENTILE
(MOST LIKELY SCENARIO) SHOWING SNOW LEVELS AROUND 6000 FT FROM
THE TAHOE BASIN NORTHWARD, WITH 7000 FT AND HIGHER FOR MONO
COUNTY. HAVE WEEKEND PLANS? MAKE SURE TO BUNDLE UP AND DRESS
ACCORDINGLY FOR COOL AND SHOWERY CONDITIONS!
-GIRALTE
AVIATION
VFR CONDITIONS CONTINUE TODAY WITH MOSTLY CLEAR SKIES. HOWEVER,
STRONG WINDS (50+ KTS) ALONG THE SIERRA CREST WILL PRODUCE
MOUNTAIN WAVE TURBULENCE AND PERIODIC LLWS THROUGH THE EVENING.
SOUTHWEST GUSTS ACROSS THE SIERRA AND SIERRA FRONT WILL RANGE FROM
25-35 KT MAINLY UNTIL 03Z TUESDAY. WINDS WILL TAPER OFF LATE
TONIGHT, BECOMING LIGHT.
-GIRALTE/JUSTIN
REV WATCHES/WARNINGS/ADVISORIES
NV...LAKE WIND ADVISORY UNTIL 6 PM PDT THIS EVENING NVZ002>004.
CA...LAKE WIND ADVISORY UNTIL 6 PM PDT THIS EVENING CAZ071>073.
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