907
FXUS65 KREV 132151
AFDREV
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
151 PM PST THU NOV 13 2025
KEY MESSAGES
* A PACIFIC STORM BRINGS GUSTY WINDS, AND PERIODS OF RAIN AND HIGH
ELEVATION SNOW INTO FRIDAY MORNING.
* A BRIEF BREAK IN THE RAIN AND SNOW IS EXPECTED FRIDAY AFTERNOON
INTO SATURDAY BEFORE SHOWER ACTIVITY INCREASES SATURDAY AND
SUNDAY.
* A COLDER STORM ARRIVES MONDAY, POTENTIALLY BRINGING ADDITIONAL
RAIN AND SIERRA SNOW, BREEZY WINDS, AND COOLER TEMPERATURES INTO
MIDWEEK.
DISCUSSION
RAIN AND HIGH ELEVATION SNOW WILL CONTINUE ACROSS NORTHEAST
CALIFORNIA AND THE SIERRA INTO FRIDAY MORNING, WITH SOME LIGHT
SHOWERS SPILLING INTO FAR N WASHOE COUNTY. INTERMITTENT LIGHT RAIN
IS LIKELY TO REACH THE SIERRA FRONT, BUT PRONOUNCED SHADOWING WILL
LIMIT RAIN ACROSS MUCH OF WESTERN NEVADA TODAY INTO FRIDAY. SNOW
LEVELS WILL STAY ABOVE 9000 FEET DURING MOST OF THIS INITIAL WAVE OF
PRECIP, CONFINING SNOWFALL TO HIGHEST SIERRA PEAKS/ELEVATIONS.
TRAVEL THROUGH THE HIGHER MOUNTAIN PASSES IN MONO AND ALPINE
COUNTIES (I.E. EBBETTS, SONORA, TIOGA) WILL BE MOST IMPACTED BY THIS
STORM WHILE TAHOE PASSES (I.E., DONNER, CARSON, ECHO) MAINLY SEE
RAIN/WET ROADS THROUGH FRIDAY. GUSTY WINDS ARE ALREADY ONGOING OR
WILL DEVELOP THIS AFTERNOON WITH S/SW GUSTS OF 30-40 MPH ACROSS
VALLEYS AND 50-60 MPH FOR WIND PRONE AREAS. ROBUST 700 MB FLOW OF 45-
55 KTS WILL YIELD RIDGETOP GUSTS OF 80-100 MPH THROUGH THE EVENING
BEFORE WEAKENING OVERNIGHT. BE PREPARED FOR AVIATION AND RECREATION
IMPACTS TODAY, WITH DIFFICULT DRIVING CONDITIONS FOR HIGH-PROFILE
VEHICLES.
SHOWER COVERAGE DECREASES TONIGHT INTO FRIDAY MORNING, ENDING IN A
NORTH TO SOUTH FASHION BY FRIDAY AFTERNOON. THIS WILL ALLOW A BRIEF
INTERMISSION IN THE RAIN AND SNOW AS THE PARENT UPPER LOW DETACHES
FROM THE MEAN FLOW AND DIGS SOUTHWARD ALONG THE WEST COAST. A
SECONDARY WAVE OF RAIN AND SNOW ARRIVES FROM THE SOUTH SATURDAY
MORNING AS LOW PRESSURE BEGINS TO LIFT ACROSS SOUTHERN CA/NV. SNOW
LEVELS WILL HAVE RISEN BACK TO NEAR 9000 FEET BY THIS TIME, AGAIN
CONFINING THE SNOW TO THE HIGH SIERRA SATURDAY ON SATURDAY. SNOW
LEVELS WILL FALL THROUGHOUT THE DAY SUNDAY AS THE COLD CORE OF THE
STORM OVERSPREADS THE REGION, DRAGGING RAIN-SNOW LINES DOWN TO THE
7000-7500 FEET BY SUNDAY NIGHT. HOWEVER, SHOWER ACTIVITY WILL BE
WANING BY THIS TIME AS THE STORM DEPARTS TO THE EAST, SO TOTAL
SNOWFALL AT THESE LOWER ELEVATIONS WILL BE LIMITED. MEANWHILE, RAIN
WILL BE MORE ABUNDANT ACROSS WESTERN NEVADA SATURDAY AND SUNDAY WITH
THE WEATHER PATTERN REMAINS PROGRESSIVE INTO EARLY NEXT WEEK AS
ANOTHER STORM ARRIVES MONDAY. THIS STORM IS TRENDING ON THE COLDER
SIDE WITH LOWER SNOW LEVELS, BUT CONFIDENCE IS QUITE LOW AS LATEST
MODEL GUIDANCE WAVERS ON THE STORM TRACK. IT IS LIKELY THAT IT'LL BE
NOTICEABLY COLDER EARLY NEXT WITH WIDESPREAD SUB-FREEZING LOWS EACH
NIGHT MONDAY AND TUESDAY. UNSETTLED WEATHER MAY CONTINUE THROUGH
MIDWEEK, BUT CONFIDENCE IS LOW BEING A WEEK OUT.
-SALAS
AVIATION
A PACIFIC STORM WILL CONTINUES LLWS/MOUNTAIN WAVE TURBULENCE AND
MVFR/MOUNTAIN OBSCURATION ISSUES INTO FRIDAY MORNING. GUSTY SW WINDS
OF 25-35 KTS WILL PERSIST INTO THE EVENING FOR TAHOE AND SIERRA
FRONT TERMINALS WITH GUSTS UP TO 50 KTS AT KMMH. SW FL100 WINDS OF
45-55 KTS WILL MAINTAIN MOUNTAIN WAVE TURBULENCE CONCERNS FROM THE
SIERRA CREST INTO WESTERN NEVADA THROUGH 06Z BUT SHOULD MITIGATE
FRIDAY MORNING. STRONG LOW-LEVEL WINDS AND WEAKENING SURFACE WINDS
WILL ALSO PRESENT LLWS IMPACTS AT ALL TERMINALS UNTIL FRIDAY MORNING
WHEN WINDS ALOFT WEAKEN.
PERIODS OF MVFR TO OCCASIONAL IFR CONDITIONS AND MOUNTAIN
OBSCURATION WILL CONTINUE AT KTRK-KTVL-KMMH INTO FRIDAY MORNING. A
FEW LIGHT SHOWERS REACHING THE SIERRA FRONT MAY REDUCE CIGS/VIS TO
MVFR CONDITIONS AT KRNO-KCXP-KMEV, BUT LLWS/TURBULENCE AND MOUNTAIN
OBSCURATION WILL SERVE AS THE PRIMARY CONCERN. THERE WILL BE A
WINDOW OF IMPROVED FLIGHT CONDITIONS FROM FRIDAY AFTERNOON INTO
SATURDAY MORNING BEFORE SHOWER ACTIVITY INCREASES.
-SALAS
REV WATCHES/WARNINGS/ADVISORIES
NV...WIND ADVISORY UNTIL 10 PM PST THIS EVENING NVZ002.
WINTER WEATHER ADVISORY FROM 10 PM THIS EVENING TO NOON PST
FRIDAY NVZ002.
LAKE WIND ADVISORY UNTIL 4 PM PST THIS AFTERNOON NVZ004.
CA...WIND ADVISORY UNTIL 10 PM PST THIS EVENING CAZ072.
WINTER WEATHER ADVISORY FROM 10 PM THIS EVENING TO NOON PST
FRIDAY CAZ072.
WINTER STORM WARNING UNTIL 4 PM PST FRIDAY CAZ073.
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