420
FXUS65 KVEF 131004
AFDVEF
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
304 AM PDT SAT SEP 13 2025
KEY MESSAGES
* QUIET WEATHER IS EXPECTED ACROSS THE AREA THROUGH THE MIDDLE OF
NEXT WEEK.
*MONSOON MOISTURE MAKES A RETURN TOWARD THE END OF NEXT WEEK.
DISCUSSION
THROUGH FRIDAY.
SEASONABLY COOL TEMPERATURES WILL CONTINUE AS A TROUGH OF LOW
PRESSURE CONTINUES TO TRAVERSE THE AREA TODAY. A RIDGE OF HIGH
PRESSURE BUILDS IN BEHIND THE EXITING TROUGH SUNDAY, INITIATING A
SLOW WARMING TREND THROUGH MID-WEEK. TEMPERATURES WILL RISE TO NEAR
NORMAL BY TUESDAY AND REMAIN NEAR TO OR SLIGHTLY ABOVE NORMAL
THROUGH THURSDAY. WIND WILL REMAIN LIGHT AND DIURNALLY TERRAIN-
DRIVEN THROUGH THIS PERIOD.
AS THE RIDGE MOVES EASTWARD, IT WILL SET UP OVER THE FOUR CORNERS
AREA, OPENING THE DOOR FOR MOISTURE TO SURGE NORTHWARD GIVING US
PERHAPS A LAST TASTE OF THE MONSOON FOR THE SEASON. THE TREND HAS
BEEN UPWARD IN THE AMOUNT OF MOISTURE THIS SURGE WILL BRING, WITH
OVER 1 INCH OF PRECIPITABLE WATER MOVING AS FAR NORTHWARD AS DEATH
VALLEY AND SOUTHERN LINCOLN COUNTY ON FRIDAY. WHAT DOES THIS MEAN
FOR THE CHANCE OF SHOWERS AND THUNDERSTORMS? THE POSSIBILITY WILL BE
THERE WITH THE ADDED MOISTURE, BUT THERE IS ALSO QUITE A BIT OF
UNCERTAINTY WHERE WE MAY SEE SIGNIFICANT CLOUD COVER WHICH COULD
LIMIT CONVECTION DEPENDING ON THE TIME OF DAY THE CLOUDS MOVE IN.
THIS IS STILL A WEEK OUT SO STAY TUNED AS THE FORECAST EVOLVES
THROUGH THE WEEK.
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...BERC
AVIATION...PHILLIPSON
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