425
FXUS65 KVEF 041935
AFDVEF
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
1235 PM PDT THU JUN 4 2026
KEY MESSAGES
* QUIET WEATHER AND ABOVE-NORMAL TEMPERATURES CONTINUE THROUGH THE
END OF THE WORK WEEK.
* EXPECT INCREASING SOUTHWEST WINDS AND COOLING TEMPERATURES THIS
WEEKEND AND INTO NEXT WEEK.
DISCUSSION
TODAY THROUGH WEDNESDAY.
RIDGING OVER THE DESERT SOUTHWEST WILL CONTINUE OVER THE NEXT COUPLE
OF DAYS THANKS TO A BUILDING HIGH PRESSURE OVER THE SOUTHEASTERN
PACIFIC OCEAN. AS A RESULT, AFTERNOON HIGH TEMPERATURES WILL
CONTINUE TO RISE TO AROUND 10 DEGREES ABOVE SEASONAL NORMALS TODAY
AND FRIDAY. WIDESPREAD MODERATE HEAT RISK TODAY AND FRIDAY, WITH
POCKETS OF MAJOR HEAT RISK IN THE LAS VEGAS VALLEY, COLORADO RIVER
VALLEY, AND DEATH VALLEY. OPTED OUT OF AN EXTREME HEAT WARNING DUE
TO THE COOL OFF OVERNIGHT AND BORDERLINE NATURE OF THIS HEAT.
REGARDLESS, THOSE SPENDING TIME OUTDOORS ARE ENCOURAGED TO DRINK
WATER BEFORE THEY ARE THIRSTY AND TAKE FREQUENT BREAKS IN THE SHADE
AND AIR CONDITIONING.
A CLOSED AREA OF LOW PRESSURE WILL PUSH INTO THE PACIFIC NORTHWEST
ON SATURDAY, RESULTING IN AN ELONGATED TROUGH ALONG THE WESTERN
CONUS. THIS TROUGH WILL BRING WITH IT STRONG GUSTY SOUTHWEST WINDS
SATURDAY THROUGH SUNDAY, WITH SPEEDS GENERALLY 20 TO 25 MPH AND
GUSTS AROUND 35 MPH. EXPECT STRONGER SPEEDS IN THE HIGHER TERRAIN.
DUE TO THE COMBINATION OF GUSTY WINDS AND DRY CONDITIONS, A FIRE
WEATHER WATCH IS IN EFFECT FOR SOUTHERN NEVADA AND NORTHWESTERN
ARIZONA. SEE THE FIRE WEATHER SECTION BELOW FOR MORE INFORMATION.
ALONG WITH GUSTY WINDS, THIS TROUGH WILL HELP TO COOL TEMPERATURES
BACK TOWARD SEASONAL NORMALS. GENERALIZED TROUGHING WILL PERSIST
THROUGH THE NEXT WORK WEEK, WITH A MODEST UPTICK IN MOISTURE ON
TUESDAY. THAT SAID, NEGLIGIBLE CHANCES OF PRECIPITATION AT THIS
TIME.
AVIATION...FOR HARRY REID...FOR THE 18Z FORECAST PACKAGE
LIGHT
AND VARIABLE WINDS WILL GIVE WAY TO BREEZY SOUTHEASTERLY WINDS BY
LATE MORNING. THESE SOUTHEASTERLY WINDS WILL CONTINUE THROUGH MID-
AFTERNOON BEFORE TURNING SOUTH TO SOUTHWEST. THE TURN IS IN THE TAF
AT 23Z, BUT WEAK FORCING ACROSS THE AREA LEADS TO LOW CONFIDENCE IN
THE TIMING, AND THE SHIFT MAY OCCUR ANYTIME BETWEEN 21Z AND 00Z.
GUSTS WILL END AND SPEEDS WILL DECREASE LATER THIS EVENING, WITH
WINDS MAINTAINING A SOUTHWESTERLY DIRECTION THROUGH EARLY FRIDAY
MORNING. SIMILAR WIND PATTERNS ARE ANTICIPATED ON FRIDAY, EXCEPT THE
SOUTHERLY SHIFT MAY OCCUR EARLIER, BETWEEN 19Z AND 22Z. VFR
CONDITIONS WILL PREVAIL THROUGH FRIDAY WITH NO OPERATIONALLY
SIGNIFICANT CLOUD COVER EXPECTED. TEMPERATURES WILL EXCEED 100F
BETWEEN 19Z AND 03Z TODAY, WITH HIGHS TOPPING OUT AROUND 106F. A
HIGH OF 106F IS ALSO EXPECTED ON FRIDAY.
FOR THE REST OF SOUTHERN NEVADA, NORTHWEST ARIZONA AND SOUTHEAST
CALIFORNIA...FOR THE 18Z FORECAST PACKAGE...WINDS WILL GENERALLY
REMAIN BETWEEN 6 AND 12 KNOTS AND FOLLOW TYPICAL DAILY DIRECTIONAL
PATTERNS THROUGH THIS AFTERNOON IN MOST AREAS. OCCASIONAL THERMALLY
INDUCED GUSTS OF 10 TO 20 KNOTS WILL BE POSSIBLE DURING PEAK HEATING
THIS AFTERNOON ACROSS SOUTHERN NEVADA AND THE MOJAVE DESERT. THESE
INTERMITTENT GUSTS WILL DIMINISH AFTER SUNSET. THE EXCEPTIONS TO THE
ABOVE WILL BE DOWN THE COLORADO RIVER VALLEY, WHERE BREEZY SOUTH-
SOUTHWEST WINDS WILL DEVELOP THIS AFTERNOON, AND ACROSS THE WESTERN
MOJAVE DESERT, WHERE BREEZY WESTERLY WINDS WILL DEVELOP BY EVENING.
VFR CONDITIONS WILL PREVAIL THROUGH FRIDAY WITH NO OPERATIONALLY
SIGNIFICANT CLOUD COVER EXPECTED.
FIRE WEATHER
WIDESPREAD SOUTHWEST WINDS BETWEEN 15 AND 25 MPH
EXPECTED ON SATURDAY, WITH GUSTS NEAR 35 MPH. AFTERNOON RELATIVE
HUMIDITIES WILL RANGE BETWEEN 5 AND 10 PERCENT, WITH UP TO 15
PERCENT IN THE HIGHER ELEVATIONS OF SOUTHERN NEVADA AND NORTHWESTERN
ARIZONA. COMBINED WITH CRITICAL FUELS, A FIRE WEATHER WATCH HAS BEEN
ISSUED FOR ARIZONA ZONES 101 AND 102 AND NEVADA ZONES 461, 462, 465,
AND 466 ON SATURDAY... WITH THE ARIZONA ZONES PERSISTING INTO
SUNDAY.
SPOTTER INFORMATION STATEMENT
SPOTTERS ARE ENCOURAGED TO REPORT
ANY SIGNIFICANT WEATHER OR IMPACTS ACCORDING TO STANDARD OPERATING
PROCEDURES.
DISCUSSION...SOULAT
AVIATION...PLANZ
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