451
FXUS65 KVEF 221100
AFDVEF
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
400 AM PDT FRI MAY 22 2026
KEY MESSAGES
* WARMING TREND CONTINUES THROUGH MEMORIAL DAY WEEKEND BEFORE
GUSTY CONDITIONS RETURN ON TUESDAY.
DISCUSSION
TODAY THROUGH THURSDAY.
VIRGA-TO-LIGHT SHOWER ACTIVITY POSSIBLE TODAY ACROSS THE SOUTHERN
GREAT BASIN INCLUDING NORTHERN INYO, ESMERALDA, SOUTHERN NYE, AND
LINCOLN COUNTIES. NOT EXPECTING MEASURABLE PRECIPITATION, BUT CAN'T
RULE OUT 20-30 MPH WINDS FROM THE DIRECTION OF THE STRONGER CELLS.
OTHERWISE, DRY CONDITIONS PREVAIL TODAY. TEMPERATURES TODAY THROUGH
MEMORIAL DAY WILL RANGE 6 TO 8 DEGREES ABOVE SEASONAL NORMALS.
CORRESPONDINGLY, THERE IS WIDESPREAD MINOR HEATRISK (LEVEL 1 ON A
SCALE OF 0 TO 4) FOR MEMORIAL DAY WEEKEND, WITH POCKETS OF MODERATE
(LEVEL 2) IN THE LOWER DESERT VALLEYS SUCH AS DEATH VALLEY, MOAPA
VALLEY, AND THE COLORADO RIVER VALLEY. AS THE WEEKEND PROGRESSES, A
CLOSED AREA OF LOW PRESSURE WILL PUSH INTO THE PACIFIC NORTHWEST,
WITH THE ASSOCIATED TROUGH AXIS PUSHING THROUGH THE DESERT SOUTHWEST
ON TUESDAY. AS A RESULT, EXPECT WIDESPREAD GUSTY SOUTHWEST WINDS
BETWEEN 30 AND 40 MPH ALONG WITH A DECREASE IN TEMPERATURES. THERE
REMAINS UNCERTAINTY REGARDING THE TIMING AND STRENGTH OF THIS
SYSTEM, AS WELL AS ITS INTERACTION WITH A SHORTWAVE PUSHING INTO
SOUTHERN CALIFORNIA, SO STAY TUNED AS WE MOVE THROUGH THE HOLIDAY
WEEKEND.
AVIATION...FOR HARRY REID...FOR THE 06Z FORECAST PACKAGE
WINDS
WILL REMAIN AROUND 8KT OR LESS THROUGH EARLY FRIDAY AFTERNOON,
FOLLOWING TYPICAL DAILY DIRECTIONAL PATTERNS. WINDS WILL INCREASE
TO AROUND 10KT FRIDAY AFTERNOON, WITH A VERY LOW CHANCE OF
INTERMITTENT HIGHER GUSTS TO AROUND 15KT DURING THE MID- TO LATE-
AFTERNOON. AFTER SUNSET, WINDS VEER TO THE SOUTH, WITH SOUTHERLY
TO SOUTH-SOUTHWESTERLY WINDS AROUND 10KT PERSISTING THEREAFTER
THROUGH THE END OF THE FORECAST PERIOD. VFR CONDITIONS WILL
CONTINUE WITH INCREASING MID-LEVEL AND HIGH CLOUDS LATE-TONIGHT
ONWARD, WITH BASES AT OR ABOVE 15KFT.
FOR THE REST OF SOUTHERN NEVADA, NORTHWEST ARIZONA AND SOUTHEAST
CALIFORNIA...FOR THE 06Z FORECAST PACKAGE...WINDS ACROSS MUCH OF
THE REGION WILL GENERALLY FOLLOW TYPICAL DAILY DIRECTIONAL
PATTERNS THE NEXT 24 HOURS, WITH SPEEDS LARGELY AROUND 5-10KT. ONE
EXCEPTION WILL BE ACROSS THE WESTERN MOJAVE DESERT, INCLUDING
KDAG, WHERE WESTERLY WINDS GUSTING TO 20-25KT WILL CONTINUE
THROUGH EARLY FRIDAY MORNING, RESUMING BY LATE-AFTERNOON.
ADDITIONALLY, ALONG THE LOWER COLORADO RIVER VALLEY FROM KEED TO
KIFP, TERRAIN-ENHANCED SOUTHERLY WINDS ARE EXPECTED TO DEVELOP
LATE-MORNING ONWARD, WITH SUSTAINED SPEEDS 10-15KT WITH GUSTS TO
20-25KT THROUGH SUNSET. THERE IS MODERATE CONFIDENCE IN WIND
DIRECTION AND MAGNITUDE IN THE NORTHERN OWENS VALLEY, INCLUDING
KBIH, WHERE A PERIOD OF DOWNSLOPING WESTERLY WINDS IS EXPECTED
DURING THE AFTERNOON, WITH A SHARP NORTHERLY SHIFT BY EARLY
EVENING. A FEW SOUTHEASTERLY GUSTS TO AROUND 15-20KT ARE ALSO
POSSIBLE DURING THE AFTERNOON IN THE LAS VEGAS VALLEY. AREAWIDE,
VFR CONDITIONS PREVAIL WITH INCREASING CLOUDS WITH BASES AT OR
ABOVE 12-15KFT.
SPOTTER INFORMATION STATEMENT
SPOTTERS ARE ENCOURAGED TO REPORT
ANY SIGNIFICANT WEATHER OR IMPACTS ACCORDING TO STANDARD OPERATING
PROCEDURES.
DISCUSSION...SOULAT
AVIATION...PHILLIPSON
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