117
FXUS65 KVEF 130536
AFDVEF
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
1036 PM PDT FRI SEP 12 2025
KEY MESSAGES
* OUTSIDE OF ISOLATED SHOWERS AND THUNDERSTORMS IN THE SIERRA AND
SOUTHWESTERN GREAT BASIN THIS AFTERNOON, WEATHER ACROSS THE
REGION WILL REMAIN DRY AND RELATIVELY BENIGN THROUGH THE WEEKEND
AND INTO NEXT WEEK.
DISCUSSION
THROUGH THURSDAY.
SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE IN THE MOUNTAINS OF INYO
AND ESMERALDA COUNTIES THIS AFTERNOON AS THE LOW PRESSURE SYSTEM
RESPONSIBLE FOR OUR COOLER THAN NORMAL TEMPERATURES SWINGS THROUGH
THE GREAT BASIN TODAY. 500 MB HEIGHTS WILL BEGIN TO RISE AS THIS
TROUGH EXITS THE REGION AND RIDGING BEGINS TO BUILD BACK IN OVER THE
WEEKEND. THIS RIDGE WILL PERSIST THROUGH THE MIDDLE OF NEXT WEEK,
ALLOWING FOR TEMPERATURES TO GRADUALLY WARM BACK UP TO NORMAL. WITH
HIGH PRESSURE OVERHEAD, WEATHER WILL REMAIN MILD WITH DRY CONDITIONS
ACROSS SOUTHERN NEVADA, SOUTHEASTERN CALIFORNIA, AND NORTHWEST
ARIZONA. TEMPERATURES WILL PEAK ON THURSDAY, COOLING FRIDAY INTO THE
WEEKEND. THE MAGNITUDE OF THIS COOLING WILL DEPEND ON THE STRENGTH
OF AN INCOMING TROUGH AND A POTENTIAL INCREASE IN CLOUD COVER AS
MOISTURE ATTEMPTS TO CREEP BACK INTO THE AREA.
AVIATION...FOR HARRY REID...FOR THE 06Z FORECAST PACKAGE
WINDS
WILL GENERALLY FOLLOW TYPICAL DIURNAL PATTERNS THROUGH THE
FORECAST PERIOD, VEERING SOUTHWESTERLY TONIGHT, THEN TO THE EAST-
NORTHEAST LATE SATURDAY MORNING, THEN TO THE SOUTHWEST LATE
SATURDAY EVENING. WIND SPEEDS ARE EXPECTED TO REMAIN AROUND 8KT OR
LESS, WITH VFR CONDITIONS PREVAILING AND TEMPERATURES REMAINING
UNDER 100 DEGREES.
FOR THE REST OF SOUTHERN NEVADA, NORTHWEST ARIZONA AND SOUTHEAST
CALIFORNIA...FOR THE 06Z FORECAST PACKAGE...ACROSS THE REGION,
WINDS WILL FOLLOW TYPICAL DIURNAL PATTERNS THE NEXT 24 HOURS,
WITH SUSTAINED SPEEDS UNDER 10KT. ONE NOTABLE EXCEPTION WILL BE
ACROSS THE WESTERN MOHAVE DESERT, WHERE WINDS WILL PREVAIL
WESTERLY FOR MOST OF THE FORECAST PERIOD, WITH GUSTS TO 20-25KT
TONIGHT AND AGAIN SATURDAY NIGHT. OTHERWISE, SUSTAINED SPEEDS
THERE WILL BE AROUND 10-12KT SAVE FOR A BRIEF WINDOW DURING THE
AFTERNOON WHEN LIGHTER WINDS ARE EXPECTED. DRY, VFR CONDITIONS
PREVAIL AREAWIDE.
SPOTTER INFORMATION STATEMENT
SPOTTERS ARE ENCOURAGED TO REPORT
ANY SIGNIFICANT WEATHER OR IMPACTS ACCORDING TO STANDARD OPERATING
PROCEDURES.
DISCUSSION...STESSMAN
AVIATION...PHILLIPSON
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