032
FXUS65 KREV 250746
AFDREV
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
1246 AM PDT SUN OCT 25 2026
KEY MESSAGES
* MOSTLY DRY AND COOL CONDITIONS WILL PREVAIL THROUGH WEDNESDAY,
WITH TEMPERATURES WARMING TO NEAR SEASONAL AVERAGES THIS
AFTERNOON.
* STRONG SOUTHWEST WINDS ARE EXPECTED MONDAY, WITH LIGHT RAIN AND
MOUNTAIN SNOW CHANCES FOR NORTHEAST CALIFORNIA.
* INCREASING CHANCES FOR UNSETTLED WEATHER AND COOLER TEMPERATURES
RETURN LATE WEEK.
DISCUSSION
AS OF THIS MORNING, A DRY AND COOL AIRMASS REMAINS ENTRENCHED
ACROSS THE SIERRA AND WESTERN NEVADA. TODAY, WE'LL SEE
TEMPERATURES PEAK AS A RIDGE OF HIGH PRESSURE BUILDS EASTWARD
ACROSS THE REGION. HIGH TEMPS TODAY WILL REACH THE UPPER 50S TO
MID-60S IN THE SIERRA AND MID-60S TO LOW 70S IN WESTERN NEVADA
VALLEYS. SOUTHWEST WINDS WILL REMAIN LIGHT THROUGH THIS EVENING.
THE MAIN WEATHER IMPACT FOR MONDAY WILL BE INCREASING WINDS
ASSOCIATED WITH THE APPROACHING LOW PRESSURE SYSTEM. SIERRA
RIDGETOP WINDS ARE FORECAST TO INCREASE THIS EVENING INTO MONDAY,
WITH PEAK GUSTS OF 70-80+ MPH. SURFACE GUSTS ACROSS THE SIERRA
AND WESTERN NEVADA VALLEYS WILL GENERALLY REACH 30-45 MPH. THESE
WINDS COULD CREATE OUTDOOR RECREATION IMPACTS AND HAZARDOUS
BOATING CONDITIONS ON LARGER LAKES. PRECIPITATION CHANCES ON
MONDAY ARE AROUND 30-40% FOR FAR NORTHEAST CALIFORNIA, THE
SURPRISE VALLEY AND FAR NORTH WASHOE NEAR THE OREGON BORDER.
OTHERWISE, WE'LL BE DRY FOR THE VAST MAJORITY OF THE REGION ON
MONDAY.
BY TUESDAY, THE LOW PRESSURE SYSTEM WILL HAVE MOVED EASTWARD,
LEADING TO CLEARING SKIES AND A RETURN TO DRY CONDITIONS.
TEMPERATURES WILL BE SLIGHTLY COOLER THAN MONDAY BUT STILL NEAR
SEASONAL AVERAGES, WITH HIGHS IN THE MID-50S TO MID-60S ACROSS THE
REGION. WINDS WILL ALSO BEGIN TO DIMINISH SIGNIFICANTLY.
FORECAST CONFIDENCE DECREASES SLIGHTLY TOWARDS THE END OF THE
WEEK AS ANOTHER UPPER-LEVEL TROUGH IS EXPECTED TO DEEPEN ACROSS
THE WESTERN U.S. BY FRIDAY AND SATURDAY. THERE ARE SOME MODEL
VARIATIONS ON THE EXACT HANDLING OF SHORTWAVES AND THE
DEPTH/POSITION OF THIS TROUGH, BUT THE OVERALL PATTERN SUGGESTS
INCREASING CHANCES FOR UNSETTLED WEATHER. TEMPERATURES ARE
EXPECTED TO COOL TO THE 40S AND 50S FOR HIGHS, WITH LOWS IN THE
20S AND 30S.
-JUSTIN
AVIATION
VFR CONDITIONS, LIGHT WINDS, AND SEASONABLE TEMPERATURES CONTINUE
THOUGH SUNDAY. THEN, AN INCOMING LOW PRESSURE SYSTEM WILL LIKELY
BRING MOUNTAIN WAVE TURBULENCE AND LLWS SUNDAY NIGHT INTO MONDAY
WITH TERMINAL GUSTS OF 25-35 KT MONDAY AFTERNOON.
-JUSTIN
REV WATCHES/WARNINGS/ADVISORIES
NV...NONE.
CA...NONE.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page