852
FXUS65 KVEF 270816
AFDVEF
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
115 AM PDT SUN JUL 27 2025
KEY MESSAGES
* ANOTHER COUPLE DAYS OF BELOW-NORMAL TEMPERATURES BEFORE THE REGION
WARMS UP THROUGH THE WEEK.
* MONSOONAL MOISTURE INCREASES IN ARIZONA MID-TO-LATE WEEK, WITH
BEST CHANCES OF PRECIPITATION ACROSS MOHAVE COUNTY.
DISCUSSION
TODAY THROUGH SATURDAY.
DRY SOUTHWEST FLOW ALOFT WILL CONTINUE THROUGH THE REMAINDER OF THE
WEEKEND INTO THE START OF NEXT WEEK, RESULTING IN PERSISTENT BREEZY
AFTERNOONS. IN ADDITION TO SOUTHWEST BREEZES BETWEEN 15 AND 25 MPH,
THE TROUGH ACROSS THE WESTERN CONUS HAS ALLOWED HEIGHTS ALOFT TO
DROP, RESULTING IN BELOW-NORMAL TEMPERATURES. THIS TROUGH WILL
REMAIN SITUATED ACROSS THE WESTERN CONUS, BUT A RIDGE OF HIGH
PRESSURE ACROSS THE SOUTHERN CONUS WILL BEGIN TO RETROGRADE WESTWARD
THROUGH THE WORK WEEK. THE RIDGE'S WESTWARD PROGRESSION WILL ALLOW
HEIGHTS TO RISE OVER THE DESERT SOUTHWEST, RESULTING IN AT-OR-ABOVE
NORMAL TEMPERATURES RETURNING TO THE REGION AS SOON AS MONDAY.
ALTHOUGH TEMPERATURES WILL RISE TO SLIGHTLY ABOVE NORMAL, THE
HEATRISK WILL REMAIN AT MINOR TO MODERATE THROUGH THE WEEK.
AS THE HIGH CONTINUES TO RETROGRADE WEST, IT WILL GRADUALLY START TO
PULL SOME MONSOONAL MOISTURE UP THE COLORADO RIVER VALLEY. HOWEVER,
THE AFOREMENTIONED WESTERN CONUS TROUGH WILL CONTEND WITH THE
RIDGE'S WESTWARD PROGRESSION, WORKING TO PREVENT MOISTURE FROM
MAKING IT MUCH FURTHER WEST THAN ARIZONA. PWATS WILL INCREASE TO
AROUND 0.50" ACROSS OUR FAR SOUTHERN ZONES ON TUESDAY, SURGING TO
AROUND 1.00" ON THURSDAY IN THE LOWER COLORADO RIVER VALLEY. AS A
RESULT, SLIGHT POPS (15-30 PERCENT) EXIST FOR MOHAVE COUNTY TUESDAY
THROUGH SATURDAY. ALTHOUGH GUSTY OUTFLOW WINDS WILL LIKELY BE THE
PRIMARY THREAT, SOME STORMS WOULD BE CAPABLE OF PRODUCING VERY HEAVY
RAINFALL. ELSEWHERE, EXPECT DRY CONDITIONS AND MOSTLY SUNNY SKIES.
AVIATION...FOR HARRY REID
FOR THE 06Z FORECAST
PACKAGE...SOUTHWESTERLY WINDS WILL DECREASE AND BECOME VARIABLE
EARLY SUNDAY MORNING. WIND DIRECTION WILL FAVOR A SOUTHEASTERLY
DIRECTION STARTING LATE TOMORROW MORNING, BUT WILL VARY IN DIRECTION
BETWEEN 140 AND 220. GUSTY SOUTHWESTERLY WINDS SHOULD BECOME
ESTABLISHED BY THE LATE AFTERNOON, DECREASING IN THE EVENING.
TEMPERATURES WILL APPROACH OR BRIEFLY EXCEED 100 DEGREES BETWEEN 23
AND 01Z.
FOR THE REST OF SOUTHERN NEVADA, NORTHWEST ARIZONA AND SOUTHEAST
CALIFORNIA...FOR THE 06Z FORECAST PACKAGE...WINDS GENERALLY
FOLLOW THEIR TYPICAL PATTERNS FOR THE REST OF TONIGHT AND
TOMORROW. GUSTY SOUTHERLY TO SOUTHWESTERLY WINDS PICK UP IN THE
AFTERNOON ACROSS MUCH OF THE AREA, INCLUDING THE COLORADO RIVER
VALLEY AND LAS VEGAS VALLEY. SOUTHEASTERLY WINDS PERSIST THROUGH
MUCH OF THE DAY AT KBIH, AND WESTERLY WINDS INCREASE AT KDAG IN
THE EVENING. SKIES WILL BE MOSTLY CLEAR.
SPOTTER INFORMATION STATEMENT
SPOTTERS ARE ENCOURAGED TO REPORT
ANY SIGNIFICANT WEATHER OR IMPACTS ACCORDING TO STANDARD OPERATING
PROCEDURES.
DISCUSSION...GORELOW
AVIATION...MELTZER
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