746
FXUS65 KREV 270709
AFDREV
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
1209 AM PDT SAT JUN 27 2026
KEY MESSAGES
* GUSTY TO STRONG WINDS TODAY WILL LEAD TO CRITICAL FIRE WEATHER
CONDITIONS. REMAIN FIRE AWARE.
* WINDS TODAY WILL ALSO RESULT IN DANGEROUS BOATING CONDITIONS,
AREAS OF BLOWING DUST, OUTDOOR RECREATION IMPACTS, AND CROSS
WINDS FOR HIGH PROFILE VEHICLES.
* MUCH COOLER WEATHER CONTINUES INTO MONDAY WITH SHOWER AND
THUNDERSTORM CHANCES NORTH OF HIGHWAY 50.
DISCUSSION
A STRONG HIGH PRESSURE SYSTEM OVER THE PACIFIC ALONG 150W WILL
MAINTAIN A NORTH-NORTHWEST FLOW INTO THE WEST COAST. OUR WEATHER
SYSTEM FOR TODAY REMAINS ON TRACK TO BRING IMPACTFUL WINDS ACROSS
MUCH OF THE SIERRA AND WESTERN NEVADA WITH SHOWER AND THUNDERSTORM
ACTIVITY NORTH OF HIGHWAY 50. MAIN CHANGE WE ARE SEEING IN THE
SIMULATIONS IS THE PACIFIC RIDGE WILL CONTINUE TO PUSH WEATHER
SYSTEMS SOUTHWARD FROM THE GULF OF ALASKA INTO THE PACIFIC
NORTHWEST AND NORTHERN GREAT BASIN EARLY NEXT WEEK. THIS MAY
LESSEN THE WARM UP AND BRING ADDITIONAL SHOWER ACTIVITY FOR THE
START OF NEXT WEEK.
FOR TODAY, WINDS ARE THE PRIMARY WEATHER THREAT WITH IMPACTS TO
FIRE WEATHER (SEE BELOW), RECREATION, AND TRAVEL. WIND GUSTS IN
LOWER ELEVATIONS CLIMB TO 30-45 MPH (70-90% CHANCE) AGAIN THIS
MORNING AND DIMINISH AFTER 10-11 PM THIS EVENING. THERE IS A 10%
CHANCE WINDS REACH 50-60 MPH IN WIND PRONE LOCATIONS ALONG
US-395/I-580, FOOTHILLS OF RENO-CARSON-DOUGLAS-LYON, AND THE VC
HIGHLANDS. MOUNTAIN TOP WINDS WILL EXCEED 50 MPH TODAY AND PEAK
NEAR 70-80 MPH. WINDS WILL LEAD TO MANY DANGERS, PLEASE BE FIRE
AWARE AND FORGO ANY BOATING PLANS TODAY. DUST WILL KICK UP FROM
DRY LAKE BEDS AND REDUCE VISIBILITY ALONG I-80, US-50, AND US-95.
SHOWERS AND A THUNDERSTORM OR TWO CONTINUE ACROSS THE SURPRISE
VALLEY AND THE NORTHERN PORTIONS OF LASSEN AND WASHOE COUNTIES TO
START THE DAY. SHOWER ACTIVITY DROPS SOUTH TOWARD I-80/US-50 LATE
THIS AFTERNOON INTO THIS EVENING. RAIN/SNOW LINES DIP TO
7000-8000 FEET TONIGHT, CAN'T RULE OUT (10-20% CHANCE) OF LIGHT
SNOW ACCUMULATIONS ON MOUNTAIN TOPS.
FOR SUNDAY, PLAN ON A DRY DAY WITH CHILLY NORTH-NORTHWEST WINDS AS
NV VALLEY HIGHS STRUGGLE TO REACH 70 DEGREES. SIERRA COMMUNITIES
WILL REMAIN IN THE MID 50S TO MID 60S. MORNING LOWS SUNDAY AND
MONDAY WILL DROP INTO THE 30S AND PERHAPS A DEGREE OR TWO BELOW
FREEZING FOR THE SIERRA. RURAL NV VALLEYS MAY ALSO SEE MORNING
LOWS IN THE MID-UPPER 30S.
LATEST SIMULATIONS HAVE A COOLER START TO NEXT WEEK AS COOLER
WEATHER SYSTEMS TO DROP INTO THE PACIFIC NORTHWEST AND NORTHERN
GREAT BASIN. SHOWERS MAY RETURN MONDAY, BUT FOR NOW ONLY APPEARS
TO BE A 10-20% CHANCE WITH HIGHS IN THE 60S AND 70S. WINDS MAY
ALSO TURN GUSTY LATER NEXT WEEK WHICH COULD RAISE FIRE WEATHER
CONCERNS AGAIN. BRONG
AVIATION
LOW PRESSURE WILL SETTLE OVER NORTHERN NEVADA TODAY WITH MOUNTAIN
WAVE TURBULENCE IMPACTING ARRIVALS AND DEPARTURES. PEAK SURFACE
GUSTS OF 25-45 KTS AT TERMINALS TODAY, WITH MOUNTAIN TOP WINDS
OF 50-70 KTS. LLWS IS POSSIBLE AFTER 21Z TODAY FOR THE TERMINALS
INCLUDING KRNO AS A COLD FRONT PASSES THROUGH THE REGION. SHOWERS
ALONG AND NORTH OF A LINE FROM KTVL-KNFL MAY ALSO LOWER CEILINGS
TO MVFR.
FOR SUNDAY, WINDS TURN TO THE NORTH AND NORTHWEST WITH 20-30KTS
ACROSS WESTERN NV AND THE EASTERN SIERRA TERMINALS. BRONG
FIRE WEATHER
RED FLAG CONDITIONS CONTINUE FOR WESTERN NV TODAY WITH WIND GUSTS
OF 30-50 MPH AND DRY FUELS. SHOWER AND THUNDERSTORM CHANCES WILL
ACCOMPANY THE SYSTEM TODAY, STARTING OUT WELL NORTH OF I-80 AND
DROPPING AS FAR SOUTH AS HIGHWAY 50 THIS EVENING AND EARLY
TONIGHT. OUTSIDE OF LASSEN AND NORTHERN WASHOE COUNTIES WETTING
RAINS WILL BE LIMITED OR NON-EXISTENT.
THE TAHOE BASIN AND EASTERN SIERRA IN MONO COUNTY WILL HAVE
WINDS OF 30-50 MPH AND UP TO 80 MPH OVER RIDGES TODAY. HOWEVER,
FUELS HAVE NOT BEEN REPORTED TO BE CRITICALLY DRY, THOUGH FIRE MAY
QUICKLY SPREAD IN POCKETS OF DRY FUELS.
COOLER TEMPERATURES AND LIGHTER WINDS ARRIVE SUNDAY AND MONDAY. BRONG
REV WATCHES/WARNINGS/ADVISORIES
NV...RED FLAG WARNING UNTIL 11 PM PDT SATURDAY NVZ420.
LAKE WIND ADVISORY UNTIL 11 PM PDT SATURDAY NVZ001>004.
RED FLAG WARNING UNTIL 11 PM PDT SATURDAY NVZ423-429.
CA...LAKE WIND ADVISORY UNTIL 11 PM PDT SATURDAY CAZ071>073.
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