329
FXUS65 KVEF 110915
AFDVEF
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
220 AM PDT TUE AUG 11 2026
KEY MESSAGES
* DAILY AFTERNOON TO EVENING ISOLATED THUNDERSTORM CHANCES WILL
CONTINUE THROUGH THE WEEK, WITH THE GREATEST CHANCES OVER HIGHER
TERRAIN AND SOME STORMS SPREADING INTO ADJACENT VALLEYS. STORM
CHANCES WILL INCREASE IN THE MID WEEK.
* THE HIGH PRESSURE IS PUSHING EASTWARD LEADING TO COOLING
TEMPERATURES THROUGH THE WEEK.
DISCUSSION
THE PUSH OF MONSOONAL MOISTURE INCREASES OVER THE
NEXT FEW DAYS, LEADING TO BETTER CHANCES FOR ISOLATED STORMS TODAY
AND A SLIGHTLY EARLIER START. STORMS BEGIN TO BUILD IN THE
SOUTHERN PORTIONS OF THE CWA BY THE LATE MORNING AND CHANCES SPREAD
NORTH INTO THE AFTERNOON. THE LATE NIGHT STORM ACTIVITY TO THE
EAST DOESN'T LOOK TO PUSH AS MUCH CLOUD COVER INTO THE AREA,
ALLOWING FOR MORE UNIFORM HEATING AND THE ENERGY NEEDED TO START
THAT INITIAL CONVECTION. SHORTER-TERM MODELS BEGIN TO PULL BACK
STORM CHANCES INTO THE EVENING FOR ALL BUT EASTERN SAN BERNARDINO,
WHICH WILL SEE LINGERING CHANCES INTO THE EARLY NIGHT. WEDNESDAY AND
THURSDAY WILL OFFER 1229FAIRLY SIMILAR ENVIRONMENTS FOR CONVECTION,
WITH MODELS HINTING AT SLIGHTLY LONGER LASTING STORM CHANCES INTO
THURSDAY NIGHT. THE PATTERN BREAKS FOR FRIDAY, WITH MUCH LOWER STORM
CHANCES THAT AFTERNOON, AND CALMER CONDITIONS FOR THE WEEKEND.
WHILE THE EXITING HIGH PRESSURE WILL ALLOW FOR MORE CONVECTION
OVER THE NEXT FEW DAYS, IT WILL ALSO CALL FOR A COOLING TREND
THROUGH THE END OF THE WORK WEEK. EXPECT HEAT RISK TO DROP OFF IN
THE MID WEEK AS TEMPERATURES BEGIN TO REDUCE BACK TO NEAR AVERAGE
FOR THIS TIME OF YEAR. LOWS LOOK TO FALL INTO THE 70S AND 80S
WHILE HIGHS REDUCE INTO THE 90S TO LOWER 100S. TEMPERATURES LOOK
TO REBOUND SLIGHTLY INTO THE WEEKEND, BUT NOT SIGNIFICANTLY.
AVIATION...FOR HARRY REID
FOR THE 12Z FORECAST
PACKAGE...ANOTHER DAY OF ISOLATED AFTERNOON THUNDERSTORM DEVELOPMENT
IS EXPECTED ACROSS THE REGION, WITH BEST CHANCES FAVORING THE HIGHER
TERRAIN SOUTH AND WEST OF THE LAS VEGAS VALLEY. 20-30 PERCENT
CHANCES EXIST FOR STORMS DEVELOPING NEAR THE TERMINALS. GUSTY AND
ERRATIC WINDS, BRIEF RAINFALL, AND LIGHTNING WILL BE POSSIBLE WITH
THUNDERSTORMS IN THE AREA. OTHERWISE, SOUTHERLY WINDS ARE FAVORED
THROUGH THE AFTERNOON HOURS WITH SCT-BKN CLOUD COVER AOA 10KFT AGL.
STORMS WILL TEND TO DIMINISH AFTER DARK. TEMPERATURES WILL EXCEED
100 DEGREES FROM 19 TO 02Z.
FOR THE REST OF SOUTHERN NEVADA, NORTHWEST ARIZONA AND SOUTHEAST
CALIFORNIA...FOR THE 12Z FORECAST PACKAGE...ISOLATED THUNDERSTORM
ACTIVITY IS EXPECTED ACROSS THE REGION ONCE AGAIN THIS AFTERNOON AND
EVENING. HIGHEST CHANCES RANGING FROM 20-40% EXIST ACROSS THE
WESTERN MOJAVE DESERT NEAR KDAG AND ACROSS SOUTHERN NEVADA IMPACTING
KVGT, KLAS, AND KHND. BRIEF RAINFALL AND STRONG WIND GUSTS CAN BE
EXPECTED WITH THE STORMS. OTHERWISE, WINDS WILL FAVOR TYPICAL DAILY
PATTERNS WITH SCT-BKN CLOUDS MAINLY AOA 10KFT AGL. STORMS WILL TEND
TO DIMINISH AFTER DARK.
SPOTTER INFORMATION STATEMENT
SPOTTERS ARE ENCOURAGED TO REPORT
ANY SIGNIFICANT WEATHER OR IMPACTS ACCORDING TO STANDARD OPERATING
PROCEDURES.
DISCUSSION...MURDOCK
AVIATION...OUTLER
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