455
FXUS65 KVEF 060529
AFDVEF
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
1029 PM PDT SAT JUL 5 2025
KEY MESSAGES
* TEMPERATURES WILL CONTINUE TO WARM THROUGH THE FIRST HALF OF THE
WEEK AS A RIDGE OF HIGH PRESSURE PUSHES INTO THE REGION. EXTREME
HEAT PRODUCTS MAY BE NEEDED FOR PORTIONS OF THE AREA BY MIDWEEK.
DISCUSSION
TODAY THROUGH NEXT WEEK.
HIGH-PRESSURE RIDGING WILL CONTINUE TO PUSH INTO THE AREA FROM THE
SOUTHEAST THROUGH THE WEEKEND AND INTO THE FIRST PART OF THE WEEK.
TEMPERATURES WILL CONTINUE TO WARM AN AVERAGE OF 1 TO 2 DEGREES EACH
DAY AS 500MB HEIGHTS BUILD TO AROUND 597DM BY WEDNESDAY. THE LATEST
NBM GUIDANCE HAS TRENDED A BIT WARMER, AND AS A RESULT, AREAS OF
MAJOR HEAT RISK ARE NOW APPEARING ACROSS THE LOWER COLORADO RIVER
AND CENTRAL AND SOUTHERN MOHAVE COUNTY. IF CURRENT TRENDS CONTINUE,
EXTREME HEAT PRODUCTS MAY BE NEEDED FOR WEDNESDAY. ANY EXTREME HEAT
IS EXPECTED TO BE SHORT-LIVED, AS HEIGHTS ARE EXPECTED TO BEGIN
FALLING BY THURSDAY AS A SHORTWAVE TROUGH MOVES INTO THE GREAT
BASIN. THERE IS A FAIR AMOUNT OF UNCERTAINTY REGARDING THE STRENGTH
OF THE WAVE, BUT IT SHOULD ALLOW TEMPERATURES TO COOL BY A FEW
DEGREES BY THE END OF THE WEEK. THE COOL-OFF WILL BE SHORT-LIVED,
AND ANOTHER RIDGE WILL BUILD INTO THE DESERT SOUTHWEST NEXT WEEKEND,
AND THE STRENGTH AND POSITION OF THIS RIDGE WILL DETERMINE HOW MUCH
TEMPERATURES CAN REBOUND.
AVIATION...FOR HARRY REID...FOR THE 06Z FORECAST PACKAGE
EXPECT
GENERAL DIURNAL TRENDS THROUGH THE TAF PERIOD WITH BREEZY
SOUTHWESTERLY WINDS OVERNIGHT, LIGHT EAST-NORTHEASTERLY WINDS IN THE
MORNING, AND LIGHT SOUTHEASTERLY WINDS IN THE AFTERNOON. SPEEDS WILL
REMAIN BELOW 10 KTS. NO OPERATIONALLY SIGNIFICANT CLOUD COVER.
TEMPERATURES WILL EXCEED 100 DEGREES BETWEEN 20 AND 04Z SUNDAY.
FOR THE REST OF SOUTHERN NEVADA, NORTHWESTERN ARIZONA AND
SOUTHEASTERN CALIFORNIA...FOR THE 06Z FORECAST PACKAGE...EXPECT
GENERAL DIURNAL TRENDS THROUGH THE TAF PERIOD. FOR THE LAS VEGAS
VALLEY AND COLORADO RIVER VALLEY TAF SITES, SPEEDS WILL REMAIN BELOW
10 KTS, WITH THE EXCEPTION OF KHND, WHERE SPEEDS WILL RANGE 8 TO 12
KTS FROM THE SOUTHWEST OVERNIGHT TONIGHT AND SUNDAY NIGHT. FOR KBIH,
LIGHT NORTHWESTERLY WINDS WILL GIVE WAY TO GUSTY SOUTH-SOUTHEAST
WINDS SUNDAY AFTERNOON, WITH GUST SPEEDS BETWEEN 20 AND 25 KTS. FOR
KDAG, GUSTY WEST WINDS WILL SUBSIDE OVERNIGHT BEFORE RETURNING
SUNDAY AT SUNSET WITH GUST SPEEDS BETWEEN 25 AND 30 KTS. NO
OPERATIONALLY SIGNIFICANT CLOUD COVER.
SPOTTER INFORMATION STATEMENT
SPOTTERS ARE ENCOURAGED TO REPORT
ANY SIGNIFICANT WEATHER OR IMPACTS ACCORDING TO STANDARD OPERATING
PROCEDURES.
DISCUSSION...PLANZ
AVIATION...SOULAT
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