416
FXUS65 KVEF 101046
AFDVEF
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
350 AM PDT WED JUN 10 2026
KEY MESSAGES
* A BUILDING AREA OF HIGH PRESSURE WILL RESULT IN HOT TEMPERATURES
AND INCREASING HEAT RISK THROUGH THE END OF THE WEEK
* TROPICAL MOISTURE MAY INCREASE THIS WEEKEND LEADING TO A SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS OVER PORTIONS OF NORTHWEST
ARIZONA.
DISCUSSION
TODAY THROUGH TUESDAY.
HIGH PRESSURE BUILDS OVER THE WESTERN UNITED STATES THROUGH THE END
OF THE WEEK AND SURFACE TEMPERATURES WILL RISE IN RESPONSE. HIGH
TEMPERATURES PEAK ON SATURDAY BETWEEN 5 AND 10 DEGREES ABOVE NORMAL
FOR MID-JUNE. FOR LAS VEGAS, THIS MEANS AFTERNOON HIGHS IN THE
UPPER 100S AND MORNING LOWS IN THE LOW TO MID 80S. A COMBINATION
OF HOT DAYTIME TEMPERATURES AND WARM OVERNIGHT LOWS WILL BRING
WIDESPREAD MODERATE (LEVEL 2 OF 4) HEAT RISK TO MOST OF THE
REGION, ALONG WITH AREAS OF MAJOR (LEVEL 3 OF 4) TO CERTAIN
VALLEYS, INCLUDING DEATH VALLEY, THE COLORADO RIVER VALLEY, AND
THE LAS VEGAS VALLEY BETWEEN FRIDAY AND SUNDAY. THIS LEVEL OF HEAT
WILL AFFECT ANYONE WITHOUT ACCESS TO SUFFICIENT COOLING AND
HYDRATION, ESPECIALLY THOSE SPENDING TIME OUTDOORS.
ALSO TRACKING A PLUME OF MOISTURE ORIGINATING FROM TROPICAL STORM
CRISTINA AND THE REMNANTS OF TROPICAL STORM BORIS. ENSEMBLES
INDICATE THIS MOISTURE TRAVELING UP THE GULF OF CALIFORNIA INTO THE
DESERT SOUTHWEST THIS WEEKEND, DRIVING PWATS TO BETWEEN 150 AND 200
PERCENT ABOVE NORMAL FOR THIS TIME OF YEAR. THIS MOISTURE MAY
PRODUCE ENOUGH HIGH CLOUD COVER TO HELP MODERATE TEMPERATURES.
ISOLATED SHOWERS AND THUNDERSTORMS CANNOT BE RULED OUT EITHER,
ESPECIALLY OVER HIGH TERRAIN IN NORTHWESTERN ARIZONA.
AVIATION...FOR HARRY REID...FOR THE 12Z FORECAST PACKAGE
EXPECT
THERMALLY-INDUCED LATE-AFTERNOON GUSTS FROM THE SOUTH-SOUTHWEST
BETWEEN 15 AND 20 KTS, BUT OTHERWISE LIGHT AND DIURNAL WIND TRENDS.
THE EXCEPTION WILL BE EARLY THURSDAY MORNING WHEN A WEAK COLD FRONT
WILL SHIFT THE WIND DIRECTION FROM THE NORTH-NORTHEAST BETWEEN 7 AND
10 KTS. NO OPERATIONALLY SIGNIFICANT CLOUD COVER. BEST CHANCES OF
TEMPERATURES AT OR EXCEEDING 100 DEGREES WILL BE BETWEEN 19 AND 04Z,
WITH A FORECAST HIGH OF 105.
FOR THE REST OF SOUTHERN NEVADA, NORTHWEST ARIZONA AND SOUTHEAST
CALIFORNIA...FOR THE 12Z FORECAST PACKAGE...EXPECT THERMALLY-INDUCED
SOUTH-SOUTHWEST WINDS THIS AFTERNOON AT LAS VEGAS VALLEY AND
COLORADO RIVER VALLEY TAF SITES WITH GUST SPEEDS BETWEEN 15 AND 20
KTS. KDAG WILL HAVE BREEZY WINDS BETWEEN 8 AND 15 KTS FAVORING
DIURNAL DIRECTIONAL TRENDS. KBIH WILL BE LIGHT AND DIURNAL UNTIL
AFTER SUNSET ON WEDNESDAY WHEN BREEZY NORTH-NORTHWEST WINDS SET UP.
NO OPERATIONALLY SIGNIFICANT CLOUD COVER THROUGH THE TAF PERIOD.
SPOTTER INFORMATION STATEMENT
SPOTTERS ARE ENCOURAGED TO REPORT
ANY SIGNIFICANT WEATHER OR IMPACTS ACCORDING TO STANDARD OPERATING
PROCEDURES.
DISCUSSION...MELTZER
AVIATION...SOULAT
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