692
FXUS65 KREV 232039
AFDREV
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
139 PM PDT WED SEP 23 2026
KEY MESSAGES
* SEASONABLY WARM AND DRY CONDITIONS ARE EXPECTED THROUGH THURSDAY
WITH TEMPERATURES 5-10 DEGREES ABOVE AVERAGE.
* INCREASING WINDS ARE EXPECTED THURSDAY, WITH STRONGER GUST BY
FRIDAY AFTERNOON, LEADING TO ELEVATED FIRE WEATHER CONCERNS.
* TEMPERATURES DROP ABOUT 5-10 DEGREES BELOW NORMAL AND BREEZY
WINDS RETURN FOR THE WEEKEND.
DISCUSSION
SEASONABLY WARM AND DRY CONDITIONS WILL CONTINUE THROUGH THURSDAY,
WITH TEMPERATURES RUNNING 4-8 DEGREES ABOVE AVERAGE. WINDS WILL
REMAIN LIGHT THIS AFTERNOON, THEN INCREASE THURSDAY AFTERNOON
AHEAD OF A DRY COLD FRONT EXPECTED FRIDAY.
SOUTHWESTERLY WIND GUSTS ON THURSDAY MAY REACH 25-35 MPH, CREATING
LOCALIZED FIRE-WEATHER CONCERNS AND CHOPPY CONDITIONS ON AREA LAKES,
ESPECIALLY NORTH OF US-50. WINDS WILL STRENGTHEN FURTHER LATE
THURSDAY NIGHT INTO FRIDAY AS THE FRONT APPROACHES. RIDGETOP GUSTS
COULD EXCEED 75 MPH, FOLLOWED BY WIDESPREAD SOUTHWEST GUSTS OF 30-40
MPH NORTH OF US-50 FRIDAY AFTERNOON. THE COMBINATION OF GUSTY WINDS
AND LOW HUMIDITY WILL ELEVATE FIRE-WEATHER CONCERNS; SEE THE FIRE
WEATHER DISCUSSION BELOW FOR DETAILS.
COOLER, NEAR-NORMAL TEMPERATURES RETURN SATURDAY AND PERSIST INTO
EARLY NEXT WEEK. HIGHS MAY FALL 5-10 DEGREES BELOW AVERAGE BY
MONDAY. SOME COLDER SIERRA VALLEYS COULD DROP BELOW FREEZING
SATURDAY MORNING, WITH FREEZING TEMPERATURES BECOMING MORE LIKELY
EARLY NEXT WEEK. ENSEMBLE GUIDANCE INDICATES AN UPPER-LEVEL TROUGH
WILL MOVE ACROSS THE REGION EARLY NEXT WEEK. ASIDE FROM THE COOLER
TEMPERATURES, PRECIPITATION CHANCES REMAIN LIMITED, GENERALLY
BELOW 10%. FUENTES
AVIATION
VFR CONDITIONS WILL PREVAIL THROUGH THURSDAY WITH LIGHT W-SW WIND
GUSTS THIS AFTERNOON AROUND 10-15KTS. WINDS WILL INCREASE BY
THURSDAY AFTERNOON WITH TERMINAL GUSTS GENERALLY AROUND 20-25 KTS
WINDS WILL STRENGTHEN ACROSS THE NORTHERN SIERRA THURSDAY NIGHT,
WITH FL100 WINDS OF 40-45KTS POSSIBLE AFTER MIDNIGHT RESULTING IN
INCREASED MOUNTAIN WAVE TURBULENCE AND LLWS. SURFACE GUSTS ACROSS
TAHOE AND W.NEVADA COULD SEE GUSTS AROUND 25-25KTS WITH OTHERWISE
DRY CONDITIONS PREVAILING. FUENTES
FIRE WEATHER
INCREASING WINDS AND CONTINUED DRY CONDITIONS WILL BRING ELEVATED TO
CRITICAL FIRE WEATHER CONDITIONS BY THURSDAY AFTERNOON. THE GREATEST
CONCERN IS EXPECTED FRIDAY WITH A DRY COLD FRONT AND HAS RESULTED
IN THE ISSUANCE OF FIRE WEATHER WATCHES FOR PORTIONS OF W.NV.
ON THURSDAY, SOUTHWEST WIND GUSTS OF 25-35 MPH ARE EXPECTED ACROSS
W.NEVADA AND NE CALIFORNIA, WITH AFTERNOON RH FALLING TO 10-15%.
ISOLATED AREAS MAY EXPERIENCE A FEW HOURS OF CRITICAL FIRE WEATHER
CONDITIONS, MAINLY ALONG THE SIERRA FRONT, FAR NW NEVADA, AND
NE CALIFORNIA.
THE STRONGEST WINDS ARE EXPECTED FRIDAY AFTERNOON AHEAD OF THE
FRONT. SOUTHWEST GUSTS OF 35-40 MPH ARE MOST LIKELY NORTH OF I-80,
WHILE WIND-PRONE LOCATIONS ALONG US-395 IN MONO COUNTY AND THE
SIERRA FRONT COULD SEE GUSTS UP TO 45 MPH. MINIMUM RH WILL
INCREASE SLIGHTLY FRIDAY, PARTICULARLY ACROSS NE CALIFORNIA AND
FAR N.WASHOE COUNTY. HOWEVER, DESPITE MINIMUM RH VALUES OF
18-25%, GUSTY WINDS COULD STILL PRODUCE 3-6 HOURS OF CRITICAL
FIRE WEATHER CONDITIONS. FUENTES/JUSTIN
REV WATCHES/WARNINGS/ADVISORIES
NV...FIRE WEATHER WATCH FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING
NVZ420-421.
FIRE WEATHER WATCH FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING
NVZ423-429.
FIRE WEATHER WATCH FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING
NVZ458.
CA...
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