807
FXUS65 KVEF 182058
AFDVEF
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
1258 PM PST TUE FEB 18 2025
SYNOPSIS
PERIODS OF GUSTY CONDITIONS DURING THE WORK WEEK AS
TEMPERATURES REMAIN NEAR OR SLIGHT ABOVE SEASONAL VALUES. HIGH
PRESSURE BUILDS IN OVER THE WEEKEND AND INTO NEXT WEEK, DRIVING
TEMPERATURES WELL ABOVE NORMAL.
DISCUSSION
THROUGH NEXT TUESDAY.
NORTHERLY BREEZES CONTINUE THIS AFTERNOON IN THE WAKE OF A PASSING
SHORTWAVE. STRONGEST WINDS HAVE BEEN IN THE LAS VEGAS VALLEY AND
COLORADO RIVER VALLEY WHERE GUSTS OF 30-40 MPH WERE RECORDED THIS
MORNING. SINCE THEN, WINDS HAVE SUBSIDED IN VEGAS, BUT REMAIN GUSTY
IN THE LAUGHLIN-NEEDLES AREA. BREEZES WILL WEAKEN AFTER SUNSET AS
THE BOUNDARY LAYER DECOUPLES.
LIGHT WINDS ANTICIPATED ACROSS THE AREA TOMORROW AS WE AWAIT THE
ARRIVAL OF A SHORTWAVE WEDNESDAY NIGHT. THIS FEATURE WILL INDUCE
ANOTHER ROUND GUSTY NORTH WINDS THURSDAY AND FRIDAY. BEST CHANCE OF
IMPACTFUL WINDS IS IN THE LOWER COLORADO RIVER VALLEY, WHERE THE NBM
HAS A 60-80% CHANCE OF 40+ MPH GUSTS, MAINLY ON FRIDAY. ELSEWHERE,
GUSTS ARE MOST-LIKELY TO REMAIN IN THE 30-40 MPH RANGE, WITH 20-40%
CHANCES OF EXCEEDING 40 MPH. PRECIPITATION-WISE, THIS SYSTEM IS
LARGELY DRY, WITH ONLY 20-30% POPS IN FAR NORTHERN LINCOLN COUNTY
WEDNESDAY NIGHT AND THURSDAY. ANY PRECIP THAT DOES FALL IN THIS
AREA WILL BE LIGHT AND NON-IMPACTFUL.
TEMPERATURES DURING THE WORK WEEK REMAIN NEAR OR SLIGHTLY ABOVE
NORMAL VALUES. HIGHS ARE FORECAST TO BE IN THE 60S TO LOW 70S ACROSS
THE MOJAVE DESERT, WITH 50S IN THE SOUTHERN GREAT BASIN. AS WE HEAD
INTO THE WEEKEND AND EARLY NEXT WEEK, ENSEMBLE GUIDANCE CONTINUES TO
SHOW A BUILDING UPPER-LEVEL RIDGE. THIS PUSHES TEMPERATURES WELL
ABOVE NORMAL. BY TUESDAY, LAS VEGAS HAS A ~25% CHANCE OF REACHING
80 DEGREES.
AVIATION...FOR HARRY REID...FOR THE 18Z FORECAST PACKAGE
EXPECT
DIRECTIONAL VARIABILITY BETWEEN 340 AND 030 WITH GUSTS BETWEEN 20
AND 30 KTS THROUGH 20Z BEFORE WINDS SUBSIDE AND SETTLE INTO A
NORTHEASTERLY DIRECTION THROUGH THE AFTERNOON. LIGHT AND DIURNAL
WINDS EXPECTED THROUGH THE REMAINDER OF THE TAF PERIOD WITH
INCREASING CLOUD COVER TO SCT-BKN AOA 20 KFT THIS EVENING.
FOR THE REST OF SOUTHERN NEVADA, NORTHWEST ARIZONA AND SOUTHEAST
CALIFORNIA...FOR THE 18Z FORECAST PACKAGE...GUSTY NORTH-
NORTHWESTERLY WINDS EXPECTED ACROSS THE FORECAST AREA THIS MORNING
WITH GUSTS BETWEEN 20 AND 30 KTS. GREATEST WIND SPEEDS WILL BE ALONG
THE COLORADO RIVER VALLEY WITH BRIEF GUSTS TO 35 KTS POSSIBLE BEFORE
20Z. WIND SPEEDS WILL DIMINISH THROUGH THE AFTERNOON WITH LIGHT AND
DIURNAL WINDS EXPECTED THIS EVENING. INCREASING CLOUD COVER TO SCT-
BKN AOA 20 KFT THIS EVENING. BY EARLY WEDNESDAY, CEILINGS OVER
SOUTHEASTERN CALIFORNIA COULD BE LOW ENOUGH TO OBSCURE SOME OF THE
HIGHER MOUNTAINS.
SPOTTER INFORMATION STATEMENT
SPOTTERS ARE ENCOURAGED TO REPORT
ANY SIGNIFICANT WEATHER OR IMPACTS ACCORDING TO STANDARD OPERATING
PROCEDURES.
DISCUSSION...WOODS
AVIATION...SOULAT
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