772
FXUS65 KREV 082127
AFDREV
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
227 PM PDT WED APR 8 2026
KEY MESSAGES
* MILD SPRING WEATHER CONTINUES THROUGH THURSDAY, THEN A SPRING
STORM WILL BRING NOTABLY COOLER WEATHER, WIDESPREAD RAIN, AND
MOUNTAIN SNOW THIS WEEKEND.
* ISOLATED THUNDERSTORMS ARE POSSIBLE FOR THE E.SIERRA AND FAR
W.NEVADA THURSDAY AFTERNOON, WITH MORE SCATTERED THUNDERSTORMS
AND WIDESPREAD PRECIPITATION EXPECTED ON FRIDAY.
* SIERRA SNOWFALL IMPACTS ARE EXPECTED BY SATURDAY MORNING AS
SNOW LEVELS DROP BELOW 7,000 FEET. WINTER STORM WATCHES HAVE
BEEN ISSUED.
DISCUSSION
A ROLLER COASTER SPRINGTIME PATTERN WILL BE IN STORE THIS WEEK AS
CONDITIONS TRANSITION FROM SEASONABLY MILD AND DRY TO COOLER AND
WETTER WITH SIERRA SNOW IMPACTS EXPECTED, DRIVEN BY A SPRING LOW
PRESSURE SYSTEM TRACKING INLAND THIS WEEKEND.
HIGHS REMAIN AROUND 10 DEGREES ABOVE AVERAGE THROUGH THURSDAY,
GENERALLY IN THE LOW 70S ACROSS WESTERN NEVADA AND LOW 60S FOR
SIERRA VALLEYS. AS MOISTURE AND INSTABILITY INCREASE IN THE
REGION, WE WILL BEGIN TO SEE 20-40% CHANCES FOR SHOWERS THIS
AFTERNOON ACROSS PORTIONS OF PLUMAS AND LASSEN COUNTIES WHICH MAY
EXTEND INTO THE SURPRISE VALLEY AND FAR NORTHERN WASHOE COUNTY.
ISOLATED THUNDERSTORMS (10-20% CHANCES) ARE POSSIBLE OVER PORTIONS
OF N.LASSEN INTO FAR NW NEVADA TODAY.
SHOWER CHANCES INCREASE ON THURSDAY (25-50% FOR THE SIERRA,
10-20% FOR FAR W.NV), ALONG WITH A 15-25% CHANCE OF THUNDERSTORMS.
FRIDAY WILL SEE THE MOST POTENTIAL WITH >60% CHANCE OF SHOWERS
AREAWIDE AND AROUND A 15-30% CHANCE OF ISOLATED TO SCATTERED
THUNDERSTORMS ACROSS THE E.SIERRA INTO THE SIERRA FRONT. SNOW
SHOWERS MAY BE LIMITED TO HIGH ELEVATIONS OF THE SIERRA ON FRIDAY
WITH SNOW LEVELS GENERALLY HANGING AROUND 7500-8000 FEET.
ON SATURDAY, THE LATEST SNOW LEVEL TRENDS HAVE LOWERED NEARLY
1000 FEET OVER IN THE LAST 12-24 HOURS WITH SNOW LEVELS DROPPING
BELOW 7000 FEET BY SATURDAY MORNING. AT THIS TIME, RAIN COULD
BEGIN TO TRANSITION TO SNOW BY FRIDAY NIGHT WITH TRAVEL IMPACTS
ACROSS THE SIERRA EXPECTED FOR SATURDAY AND SUNDAY. AT THIS TIME,
CHANCES OF SEEING OVER 2 FEET OF SNOW ARE OVER 55% ALONG SIERRA
CREST PASSES WITH AROUND 6-12” FOR MONO COUNTY COUNTIES WEST OF
US-395 (ABOVE 8000 FEET) AND 6-10” AROUND LAKE LEVEL IN THE TAHOE
BASIN. WINTER STORM WATCHES HAVE BEEN ISSUED FOR THESE AREAS.
EXPECT GUSTY SOUTH- SOUTHWEST TO ACCOMPANY THIS STORM WITH GUSTS
30-40 MPH EXPECTED FOR MOST AREAS WITH OVER 50 MPH FOR WIND PRONE
AREAS. MOST SNOW IMPACTS SHOULD BEGIN TO WANE BY EARLY MONDAY
MORNING WITH DRIER AND COOLER CONDITIONS PREVAILING. FUENTES
AVIATION
* VFR CONDITION WILL PREVAIL THIS AFTERNOON WITH WESTERLY
AFTERNOON WINDS GUSTING UP TO AROUND 20 KTS. GENERALLY LESS THAN
A 10% CHANCE FOR ISOLATED SHOWERS FOR KTRK AND KTVL WITH 20-40%
CHANCES NORTH OF KSVE THIS AFTERNOON.
* THE PRECIPITATION CHANCES WILL THEN INCREASE AND BECOME MORE
WIDESPREAD ALONG THE SIERRA CREST AND INTO THE SIERRA FRONT
THROUGH THE REMAINDER OF THE WEEK.
* SNOW IMPACTS FOR SIERRA TERMINALS ARE LOOKING MORE LIKELY BY
SATURDAY WITH GENERALLY AROUND 5-10 INCHES OF ACCUMULATION
POSSIBLE FOR KTRK, KTVL, KMMH.
AVALANCHE
INCREASING CHANCES FOR PERIODS OF MODERATE TO HEAVY SNOWFALL IN
THE SIERRA THIS WEEKEND:
* FRIDAY: 70-90% CHANCE OF SHOWERS WITH 15-30% CHANCE OF
THUNDERSTORMS IN THE AFTERNOON ALONG THE EASTERN SIERRA. ANY
SNOW IMPACTS WILL BE LIMITED TO HIGHER ELEVATIONS ABOVE 8000
FEET THROUGH FRIDAY AFTERNOON WITH 1-4 INCHES OF SNOWFALL
POSSIBLE ALONG THE SIERRA CREST. SNOW LEVELS WILL FALL BELOW
7000 FEET BY FRIDAY NIGHT.
* SATURDAY-MONDAY MORNING: SNOW LEVELS HAVE TRENDED MUCH LOWER
RECENTLY WITH SNOW LEVELS LOWERING BELOW 6500 FEET BY MID-
MORNING SATURDAY. SNOW RATIO AROUND 8-10:1 ARE EXPECTED ON
SATURDAY BEFORE INCREASING NEAR 12:1 BY SUNDAY. WHILE TIMING
REMAINS LOW CONFIDENCE AT THIS TIME, THE HEAVIEST RAIN AND SNOW
RATES ARE TARGETING SATURDAY AFTERNOON-EVENING. SWE OF
2.5-2.75" IS POSSIBLE ALONG THE SIERRA CREST BY MONDAY MORNING
ALONG THE TAHOE BASIN WITH NEAR 2.0" IN MONO COUNTY. SNOW TOTALS
NEARING 3 FEET ALONG THE SIERRA CREST IN THE TAHOE BASIN ARE
POSSIBLE WITH AROUND 2 FEET FOR THE CREST IN MONO COUNTY. STRONG
AND GUSTY SOUTH-SOUTHWESTS WINDS ARE EXPECTED ON SATURDAY WITH
RIDGETOP GUSTS OF 80-100 MPH EXPECTED. FUENTES
REV WATCHES/WARNINGS/ADVISORIES
NV...WINTER STORM WATCH FROM SATURDAY MORNING THROUGH SUNDAY EVENING
NVZ002.
CA...WINTER STORM WATCH FROM SATURDAY MORNING THROUGH SUNDAY EVENING
CAZ071-072.
WINTER STORM WATCH FROM FRIDAY EVENING THROUGH SUNDAY EVENING
CAZ073.
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