873
FXUS65 KVEF 052007
AFDVEF
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
107 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 MID-WEEK.
DISCUSSION
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 18Z FORECAST PACKAGE
BREEZY
AND AT TIMES GUSTY SOUTH TO SOUTHWESTERLY WINDS ARE EXPECTED INTO
EARLY THIS EVENING. GUSTS SHOULD GENERALLY REMAIN LESS THAN 20
KNOTS, ALTHOUGH THERE IS A NON-ZERO CHANCE OF SEEING ONE TO TWO
REACH 25 KNOTS. WINDS DECREASE TO 8 KNOTS OR LESS BY LATE EVENING
AND ARE EXPECTED TO REMAIN AT OR BELOW THESE LEVELS THROUGH TOMORROW
AFTERNOON. VFR CONDITIONS WITH CLEAR SKIES WILL PREVAIL THROUGH
SUNDAY. TEMPERATURES WILL EXCEED 100 DEGREES BETWEEN 22Z AND 03Z
BOTH THIS AFTERNOON AND AGAIN TOMORROW AFTERNOON.
FOR THE REST OF SOUTHERN NEVADA, NORTHWEST ARIZONA AND SOUTHEAST
CALIFORNIA...FOR THE 18Z FORECAST PACKAGE...CONDITIONS AT THE LAS
VEGAS AREA TERMINAL WILL BE SIMILAR TO THOSE DESCRIBED ABOVE FOR
HARRY REID. ELSEWHERE ACROSS THE REGION, BREEZY CONDITIONS ARE
FORECAST THIS AFTERNOON AND EARLY EVENING BEFORE WINDS FALL BELOW 10
KNOTS AFTER SUNSET. THE EXPECTED WILL BE KDAG, WITH OCCASIONAL
GUSTS OF UP TO 20 KNOTS PERSISTING INTO THE EARLY MORNING HOURS.
MOST SITES WILL SEE WINDS OF 10 KNOTS OR LESS TOMORROW. ONCE AGAIN,
THE EXCEPTION WILL BE ACROSS THE WESTERN MOJAVE DESERT, INCLUDING
KDAG, WHERE A FEW GUSTS OF 15 TO 20 KNOTS ARE POSSIBLE. VFR
CONDITIONS WILL PREVAIL THROUGH SUNDAY.
SPOTTER INFORMATION STATEMENT
SPOTTERS ARE ENCOURAGED TO REPORT
ANY SIGNIFICANT WEATHER OR IMPACTS ACCORDING TO STANDARD OPERATING
PROCEDURES.
DISCUSSION...PLANZ
AVIATION...PLANZ
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