975
FXUS65 KVEF 190546
AFDVEF
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
946 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.
UPDATE
THE LATEST SATELLITE IMAGES THIS EVENING SHOW A FEW MID
AND HIGH LEVELS CLOUDS STREAMING ACROSS THE REGION. WINDS GUSTING
UP TO 30 MPH CONTINUE IN THE COLORADO RIVER VALLEY, BUT THESE WILL
CONTINUE TO DIMINISH AS THE EVENING PROGRESSES. ELSEWHERE, LIGHT
WINDS ARE BEING OBSERVED. TEMPERATURES WILL COOL OVERNIGHT TO NEAR-
SEASONABLE LEVELS BEFORE WARMING BACK TO SLIGHTLY ABOVE-NORMAL
LEVELS TOMORROW. THE CURRENT FORECAST GRIDS LOOK GOOD, AND NO
UPDATES ARE NEEDED AT THIS TIME.
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 06Z FORECAST PACKAGE
LIGHT
DIURNALLY DRIVEN WINDS ARE EXPECTED TO CONTINUE THROUGH
WEDNESDAY NIGHT, WITH WESTERLY WINDS TONIGHT BECOMING VARIABLE
PRIOR TO DAYBREAK, THEN SHIFTING TO THE SOUTHEAST BY LATE MORNING.
AFTER SUNSET, WINDS RETURN TO THE WEST- NORTHWEST, WITH SPEEDS
REMAINING AROUND 5-7KT FOR THE DURATION. A NORTHWESTERLY WIND
SHIFT IS EXPECTED AFTER 20/12Z, WITH INCREASING PROBABILITIES
(25-75%) FOR WIND GUSTS TO 20KT OR MORE THEREAFTER. OTHERWISE, VFR
CONDITIONS PREVAIL WITH INTERMITTENT MID AND HIGH CLOUDS WITH
BASES BETWEEN 15-25KFT.
FOR THE REST OF SOUTHERN NEVADA, NORTHWEST ARIZONA AND SOUTHEAST
CALIFORNIA...FOR THE 06Z FORECAST PACKAGE...NORTHERLY WINDS REMAIN
ELEVATED AT KIFP THIS EVENING, WITH SUSTAINED SPEEDS EXPECTED TO
REMAIN AROUND 15KT OVERNIGHT, INCREASING AND BECOMING GUSTY AFTER
DAYBREAK WEDNESDAY. GUSTS TO 25KT ARE EXPECTED THROUGH EARLY
AFTERNOON BEFORE WINDS FINALLY DIMINISH, BECOMING LIGHT AND
VARIABLE BY 20/00Z. WHILE KDAG WILL SEE WESTERLY WINDS THROUGH THE
FORECAST PERIOD, WINDS THERE WILL BECOME GUSTY BY MID-AFTERNOON,
WITH GUSTS TO AROUND 15-20KT EXPECTED, FURTHER INCREASING TO
AROUND 25KT BY LATE EVENING. ELSEWHERE ACROSS THE REGION, LIGHT
AND DIURNAL WINDS ARE EXPECTED FOR THE DURATION, WITH SPEEDS
GENERALLY REMAINING BETWEEN 5-8KT. MID AND HIGH CLOUDS WILL
CONTINUE STREAMING OVER THE REGION, BECOMING SCT-BKN WEDNESDAY
MORNING, AND DECREASING IN COVERAGE THROUGH THE EVENING.
SPOTTER INFORMATION STATEMENT
SPOTTERS ARE ENCOURAGED TO REPORT
ANY SIGNIFICANT WEATHER OR IMPACTS ACCORDING TO STANDARD OPERATING
PROCEDURES.
UPDATE...PLANZ
DISCUSSION...WOODS
AVIATION...PHILLIPSON
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