763
FXUS65 KVEF 202123
AFDVEF
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
123 PM PST THU FEB 20 2025
SYNOPSIS
GUSTY NORTH WINDS CONTINUE TODAY AND TOMORROW, STRONGEST
IN THE LOWER COLORADO RIVER VALLEY. AS HIGH PRESSURE BUILDS THIS
WEEKEND AND NEXT WEEK, CALMER AND UNSEASONABLY WARM CONDITIONS TAKE
HOLD.
DISCUSSION
THROUGH WEDNESDAY.
WINDS HAVE BEGUN TO WEAKEN SLIGHTLY IN THE LAS VEGAS VALLEY AFTER
OVER-PERFORMING EXPECTATIONS THIS MORNING. PEAK GUSTS WERE GENERALLY
IN THE 30-40 MPH RANGE ACROSS MUCH OF THE AREA, BUT HARRY REID
GUSTED TO 40-45 MPH SEVERAL TIMES. WINDS AROUND THE REGION SHOULD
CONTINUE TO GRADUALLY WANE INTO THE EVENING, BUT WE'LL SEE SOME
REINVIGORATION OF THE NORTHERLY BREEZES TONIGHT AND TOMORROW AS A
SECONDARY VORT MAX DROPS SOUTH THROUGH THE GREAT BASIN. STRONGEST
WINDS FROM THIS WILL BE IN THE LOWER COLORADO RIVER VALLEY, WITH
GUSTS 30-40 MPH EXPECTED. LATEST HREF HIGHLIGHTS THE LAUGHLIN AREA
WITH A 30% CHANCE OF 40+ MPH GUSTS FRIDAY MORNING. WITH THE
STRONGEST WINDS FOCUSED BETWEEN LAKE MOHAVE AND LAKE HAVASU, AND
THE LIMITED SPATIAL AND TEMPORAL WINDOW FOR 40+ MPH GUSTS (IF THEY
OCCUR AT ALL), WON'T BE ISSUING ANY WIND HEADLINES. HOWEVER,
ANYONE ON THE LOCAL LAKES TODAY AND TOMORROW SHOULD BE PREPARED
FOR INCREASED WAVE ACTIVITY.
AS WE HEAD INTO THE WEEKEND, A BROAD 500MB RIDGE BEGINS TO BUILD
OVER MOST OF THE WESTERN US. THIS DRIVES TEMPERATURES WELL ABOVE
NORMAL FOR LATE FEBRUARY. BY TUESDAY, ENSEMBLES SHOW A SHORTWAVE
MOVING INTO THE PACNW AND FLATTENING THE RIDGE. WHILE 500MB HEIGHTS
FALL SLIGHTLY, ANY COOLING THIS INDUCES IS AT LEAST INITIALLY OFFSET
BY ENHANCED VERTICAL MIXING DUE TO A SLIGHT UPTICK IN BREEZES.
TUESDAY'S HIGHS IN LAS VEGAS WILL BE PUSHING 80 DEGREES WHILE PLACES
LIKE DEATH VALLEY AND LAKE HAVASU WILL BE AROUND 90 DEGREES.
HOWEVER, IT APPEARS THAT COLD AIR ADVECTION INDUCED BY THE NORTHERLY
BREEZES BEGINS TO WIN OUT ON WEDNESDAY, WITH FORECAST HIGHS DROPPING
A FEW DEGREES FROM TUESDAY.
AVIATION...FOR HARRY REID...FOR THE 18Z FORECAST PACKAGE
WINDS
BETWEEN 320-350 DEGREES AT 20-30 KTS EXPECTED THROUGH MUCH OF THE
AFTERNOON. IT IS POSSIBLE WINDS COULD BRIEFLY SHIFT TO THE NORTHEAST
THIS AFTERNOON, BUT ANYTHING BETWEEN 360-030 DEGREES ARE NOT
EXPECTED TO LAST LONG. WINDS WILL GRADUALLY DECREASE AROUND SUNSET
WITH NORTHWEST WINDS AROUND 8-10 KTS EXPECTED OVERNIGHT AND LIKELY
THROUGH 17Z FRIDAY. NO OPERATIONALLY SIGNIFICANT CLOUDS OR WEATHER
EXPECTED.
FOR THE REST OF SOUTHERN NEVADA, NORTHWEST ARIZONA AND SOUTHEAST
CALIFORNIA...FOR THE 18Z FORECAST PACKAGE...NORTHWEST TO NORTH WINDS
EXPECTED AT ALL TAF SITES THROUGH MUCH OF THE AFTERNOON. STRONGEST
WINDS ARE EXPECTED BETWEEN 18Z-22Z WITH SPEEDS BETWEEN 20-30 KTS.
WINDS WILL GRADUALLY DIMINISH TO AROUND 10-20 KTS LATE AFTERNOON AND
EVENING, BUT STAY AROUND 10-15 KTS FOR THE OVERNIGHT PERIOD. A FEW
SPOTTY LIGHT SHOWERS WILL BE POSSIBLE TODAY IN NORTHERN LINCOLN
COUNTY, OTHERWISE, NO OPERATIONALLY SIGNIFICANT CLOUDS OR WEATHER
EXPECTED THROUGH FRIDAY.
SPOTTER INFORMATION STATEMENT
SPOTTERS ARE ENCOURAGED TO REPORT
ANY SIGNIFICANT WEATHER OR IMPACTS ACCORDING TO STANDARD OPERATING
PROCEDURES.
DISCUSSION...WOODS
AVIATION...GORELOW
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