679
FXUS65 KREV 271837
AFDREV
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
1137 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
PEAK WIND GUSTS SO FAR TODAY RANGE FROM 35-40 MPH ACROSS MUCH OF
THE AREA. EXPECT SIMILAR WIND SPEEDS TO CONTINUE THROUGH THIS
EVENING, WITH LOCALIZED GUSTS UP TO 45 MPH (50+ MPH IN WIND PRONE
LOCATIONS ALONG US-395 FROM HERLONG JUNCTION TO
COLEVILLE/WALKER). THESE WINDS WILL RESULT IN CRITICAL FIRE
WEATHER CONDITIONS, SEE THE FIRE WEATHER DISCUSSION BELOW FOR MORE
DETAILS, AS WELL AS HAZARDOUS BOATING CONDITIONS ON LAKES.
DIFFICULT TRAVEL FOR HIGH PROFILE VEHICLES AND REDUCED
VISIBILITIES FROM BLOWING DUST ARE ALSO IN THE CARDS TODAY.
SHOWERS AND THUNDERSTORMS CURRENTLY PERSIST IN NORTH CENTRAL NV AS
OF THIS WRITING. AS DAYTIME HEATING INCREASES, WE CAN EXPECT
ADDITIONAL CHANCES FOR SHOWERS AND A STRAY LIGHTNING STRIKE. THE
MAIN AREA OF CONCERN WILL BE NORTH OF I-80 IN PERSHING COUNTY AS
WELL AS IN NE CA AND NORTHERN WASHOE COUNTY ALONG THE OR BORDER.
A POTENT COLD FRONT WILL TRACK SOUTHWARD TODAY, IMPACTING OUR AREA
AFTER 5 PM; RESULTING IN A WIND SWITCH TO OUT OF THE
NORTH/NORTHEAST. WE ARE ALSO EXPECTING ADDITIONAL SHOWER CHANCES
LATE TONIGHT INTO EARLY SUNDAY MORNING. HI-RES MODELS SHOW A
GENERAL BAND OF SHOWERS DEVELOPING ALONG A SOUTHWEST TO NORTHEAST
LINE FROM THE CENTRAL VALLEY AROUND OROVILLE UP TO JUST NORTH OF
PYRAMID LAKE. THIS LINE WILL PROGRESS SOUTHEASTWARD, ENCOMPASSING
TRUCKEE/DONNER UP THROUGH FERNLEY AND POSSIBLY LOVELOCK. AS THE
LINE INTERACTS WITH THE TERRAIN AROUND THE TAHOE BASIN, IT'LL BE
SHEARED OFF, MEANING OUR FRIENDS SOUTH OF SPOONER SUMMIT WILL
LIKELY MISS OUT ON ANY PRECIPITATION.
WHAT OF THE PRECIPITATION TYPE? THE PRECEDING COLD FRONT WILL HELP
DROP TEMPERATURES INTO THE UPPER 30S. AS SUCH, SNOW LEVELS DROP TO
ABOUT 7500 FT, WHICH WILL ALIGN WITH THE SHOWER CHANCES. SNOW
FLURRIES AREN'T OUT OF THE QUESTION FOR THE HIGHER PEAKS OF THE
SIERRA IN THE TAHOE BASIN, THOUGH LOWER ELEVATIONS CAN EXPECT RAIN.
ANY ACCUMULATIONS OF EITHER THE LIQUID OR FROZEN TYPE WILL BE
LITTLE TO NONE.
SUNDAY MORNING WILL BE QUITE COLD, WITH A 60% CHANCE FOR SIERRA
COMMUNITIES (TRUCKEE, SOUTH LAKE TAHOE, BRIDGEPORT, ETC.) TO DROP
TO NEAR OR BELOW FREEZING. MONDAY WILL BE ANOTHER COLD MORNING,
THOUGH CHANCES FOR SIMILAR TEMPERATURES DROP TO 30-40%. AFTERNOON
HIGHS WILL BE MUCH COOLER FOR THE NEXT WEEK, ONLY INCREASING TO
THE MID 80S AND LOW 70S FOR VALLEYS AND HIGHER ELEVATIONS,
RESPECTIVELY, BY WEDNESDAY. THE EC SHOWS ANOTHER LOW DROPPING
DOWN MONDAY, WITH PARTIAL AGREEMENT FROM THE GFS. THIS WILL HELP
KEEP TEMPS DOWN, AND INCREASE CHANCES FOR SHOWERS. HOWEVER,
CONFIDENCE REMAINS LOW ON THIS FEATURE SO CHECK BACK HERE FOR MORE
DETAILS.
-GIRALTE
AVIATION
VFR CONDITIONS EXPECTED FOR ALL TERMINALS THROUGH THIS EVENING
THOUGH MOUNTAIN WAVE TURBULENCE WILL IMPACT ALL TERMINALS TODAY. PEAK
SURFACE GUSTS OF 25-45 KTS AT TERMINALS TODAY, WITH MOUNTAIN TOP
WINDS OF 50-70 KTS. LLWS LIKELY AFTER 21Z TODAY FOR
KRNO/KCXP/KTRK/KTVL WITH PASSAGE OF THE COLD FRONT. SHOWERS ALONG
AND NORTH OF A LINE FROM KTVL-KNFL MAY LOWER CEILINGS TO MVFR FROM
9-14Z.
NORTHERLY WINDS OF 20-30 KTS EXPECTED FOR SUNDAY WITH VFR
CONDITIONS FOR ALL TERMINALS.
-GIRALTE/BRONG
FIRE WEATHER
RED FLAG CONDITIONS CONTINUE FOR WESTERN NV TODAY WITH WIND GUSTS
OF 30-50 MPH, DRY FUELS, AND LOWER RH VALUES. AVOID ACTIVITIES
THAT MAY CAUSE A SPARK SUCH AS TARGET SHOOTING, DRIVING MOTORIZED
VEHICLES OVER DRY GRASSES AND VEGETATION, DRAGGING TRAILER CHAINS,
AND LIGHTING FIREWORKS.
SHOWER AND THUNDERSTORM CHANCES WILL ACCOMPANY THE COLD FRONT
TODAY, BUT WILL MAINLY PERSIST NORTH OF I-80 BEFORE A LINE OF
SHOWERS DROPS SOUTH EARLY SUNDAY MORNING. 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 WITH GUSTS UP TO 80 MPH OVER RIDGES TODAY.
WHILE FUELS FOR THESE REGIONS HAVE NOT BEEN REPORTED TO BE
CRITICALLY DRY, FIRE MAY QUICKLY SPREAD IN POCKETS OF DRY FUELS
WHEN COUPLED WITH STRONG WINDS.
COOLER TEMPERATURES AND LIGHTER WINDS ARRIVE SUNDAY AND MONDAY.
-GIRALTE/BRONG
REV WATCHES/WARNINGS/ADVISORIES
NV...RED FLAG WARNING UNTIL 11 PM PDT THIS EVENING NVZ420.
LAKE WIND ADVISORY UNTIL 11 PM PDT THIS EVENING NVZ001>004.
RED FLAG WARNING UNTIL 11 PM PDT THIS EVENING NVZ423-429.
CA...LAKE WIND ADVISORY UNTIL 11 PM PDT THIS EVENING CAZ071>073.
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