162
FXUS65 KREV 011901
AFDREV
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
1201 PM PDT FRI MAY 1 2026
KEY MESSAGES
* A WEATHER SYSTEM WILL BRING SHOWERS, THUNDERSTORMS, AND COOLER
TEMPERATURES THIS WEEKEND. BE PREPARED FOR RECREATION AND
TRAVEL IMPACTS DUE TO GUSTY WINDS, RAIN, HAIL, AND MOUNTAIN
SNOW.
* COOL, SHOWERY WEATHER CONTINUES MONDAY TO WEDNESDAY. SNOW MAY
IMPACT TRAVEL OVER MOUNTAIN PASSES ABOVE 8000 FEET MONDAY.
* WARM WEATHER RETURNS LATE NEXT WEEK.
DISCUSSION
BLOCKING PATTERN OVER THE EASTERN PACIFIC REMAINS IN PLACE FOR THE
NEXT 4-5 DAYS. TODAY'S HIGH PRESSURE WILL MOVE OFF AND BE
REPLACED BY A CUT OFF LOW ALONG THE CALIFORNIA COAST THAT WILL
BRING SHOWERS AND THUNDERSTORMS THIS WEEKEND. THE CUT OFF LOW IS
FORECAST TO MOVE INLAND AND ACROSS NV MONDAY TO WEDNESDAY KEEPING
THE SHOWER ACTIVITY AND COOLER TEMPERATURES IN PLACE.
A FEW HIGHLIGHTS...
SHOWER AND THUNDERSTORMS WILL BEGIN SATURDAY AFTERNOON,
SIMULATIONS SHOW THE ACTIVITY ANYWHERE FROM ALONG THE SIERRA CREST
TO A LINE FROM PYRAMID LAKE AREA SOUTHWARD TO LYON AND MINERAL
COUNTIES. THOSE WITH OUTDOOR PLANS SHOULD PREPARE FOR ERRATIC
GUSTY WINDS OF 30+ MPH (MAY NOT BE A GREAT BOATING WEEKEND), RAIN,
HAIL, AND MOUNTAIN SNOW ABOVE 9000 FEET. MODELS INCREASE
INSTABILITY AND FORCING MECHANISM FOR STRONGER THUNDERSTORM
DEVELOPMENT SUNDAY, SO REALLY KEEP AN EYE TO THE SKY IF YOU ARE
OUT AND ABOUT THIS WEEKEND.
RAIN-SNOW LINES ARE FORECAST TO LOWER 8000 FEET WHERE THE LOW
PRESSURE SYSTEM TRACKS INLAND SUNDAY NIGHT AND MONDAY. FOR NOW
THAT IS FROM SOUTH TAHOE TO MONO COUNTY. MODEL ENSEMBLE SYSTEMS
ARE PRODUCING A 50-60% CHANCE OF 4 INCHES OF SNOW ALONG THE MONO
COUNTY CREST MONDAY. THIS MAY LEAD TO TRAVEL IMPACT ESPECIALLY TO
HIGH MOUNTAIN ROADS SUCH AS CA ROUTES 88, 89, 108, 120, AND THE
MT ROSE SUMMIT. HEAVIER SHOWERS AND THUNDERSTORMS CAN QUICKLY DROP
RAIN-SNOW LINES AN ADDITIONAL 1000 FEET OR PRODUCE ACCUMULATING
HAIL ON MOUNTAIN ROADWAYS.
SHOWER ACTIVITY WILL DECREASE TUESDAY AND WEDNESDAY BUT WITH LESS
FORCING, MEANING SPRING SHOWERS WILL BE AROUND DURING THE
AFTERNOON HOURS BUT REMAIN LIGHT WITH MINIMAL TRAVEL IMPACTS.
WARM WEATHER RETURN FOR THE SECOND HALF OF NEXT WEEK WITH AFTERNOON
HIGHS ACROSS THE NV VALLEY NEAR 80 BY FOR THURSDAY-FRIDAY. HOWEVER
THE WARMTH MAY BE SHORT LIVED AS THE NEXT LOW PRESSURE SYSTEM WITH
THE EASTERN PACIFIC BLOCKING PATTERN ARRIVES FOR THE FOLLOWING
WEEKEND. BRONG
AVIATION
VFR CONDITIONS WITH LIGHT WINDS TONIGHT. KTRK HAS A 30% CHANCE TO
SEE FZFG TONIGHT THROUGH SUNRISE.
AN INCOMING SYSTEM ON SATURDAY WILL INCREASE WINDS OUT OF THE
SOUTH AND SOUTHWEST 20KTS IN THE AFTERNOON. SHOWER CHANCES JUMP
UP TO 30-40% ON SATURDAY AND 50-80% ON SUNDAY, EACH WITH A 15% AND
30% CHANCE OF LIGHTNING, RESPECTIVELY. MOUNTAIN TOPS MAY BECOME
OBSCURED AS CLOUD HEIGHTS LOWER THROUGH THE WEEKEND. BRONG
REV WATCHES/WARNINGS/ADVISORIES
NV...NONE.
CA...NONE.
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