087
FXUS65 KVEF 081029
AFDVEF
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
330 AM PDT MON JUN 8 2026
KEY MESSAGES
* GUSTY SOUTHWEST WINDS AND INCREASED FIRE DANGER ARE EXPECTED
THROUGH TUESDAY.
* A PATTERN SHIFT BRINGS LIGHTER WINDS AND A WARMING TREND
STARTING MIDWEEK.
DISCUSSION
THROUGH SUNDAY.
ANOTHER SHORTWAVE WILL MOVE ALONG THE OVERALL TROUGHING PATTERN
TODAY, BRINGING ADDITIONAL SOUTHWESTERLY WINDS TO THE REGION.
ELEVATED WINDS COMBINED WITH LOW HUMIDITY AND DRY FUELS RESULT IN
ELEVATED TO CRITICAL FIRE WEATHER CONDITIONS FOR MUCH OF THE AREA.
THE GREATEST CONCERNS TODAY INCLUDE MOST OF SOUTHERN NEVADA AND
NORTHWESTERN ARIZONA, SHIFTING TO JUST NORTHWESTERN ARIZONA TOMORROW
AS THE TROUGH EXITS EAST AND WINDS DECREASE OVER NEVADA. SEE THE
FIRE WEATHER DISCUSSION BELOW FOR MORE DETAILS. THESE WINDS ALSO
BRING HAZARDOUS BOATING CONDITIONS TO LAKE MEAD AND LAKE MOHAVE.
THERE IS A 70 TO 80 PERCENT PROBABILITY OF SUSTAINED WIND SPEEDS
OVER 25 MPH, WHICH CAN PRODUCE WAVES OF UP TO 3 FEET. A LAKE WIND
ADVISORY IS IN EFFECT FROM 10 AM PDT/MST TO 6 PM PDT/MST TODAY.
THE TROUGH LIFTS AND HIGH PRESSURE BUILDS OVER THE WESTERN UNITED
STATES STARTING WEDNESDAY. THIS PATTERN SHIFT WILL RESULT IN LIGHTER
WINDS AND WARMING TEMPERATURES, WITH HIGHS 5 TO 10 DEGREES ABOVE
NORMAL FOR MID-JUNE BY FRIDAY. EXPECT WIDESPREAD MODERATE (LEVEL 2
OF 4) HEAT RISK WITH AREAS OF MAJOR (LEVEL 3 OF 4) HEAT RISK IN THE
COLORADO RIVER VALLEY, DEATH VALLEY, AND THE LAS VEGAS VALLEY.
THIS LEVEL OF HEAT WILL AFFECT ANYONE WITHOUT ADEQUATE COOLING OR
HYDRATION. ALSO WATCHING THE POTENTIAL FOR A PUSH OF MOISTURE FROM
THE GULF OF CALIFORNIA INTO THE DESERT SOUTHWEST THIS WEEKEND.
HOWEVER, POPS REMAIN LESS THAN 10 PERCENT AND MODEL ENSEMBLES
INDICATE LITTLE TO NO PRECIPITATION REACHING THE SURFACE AT THIS
TIME.
AVIATION...FOR HARRY REID...FOR THE 12Z FORECAST PACKAGE
LIGHT
SOUTH WINDS REMAIN FAVORED THROUGH DAYBREAK AND INTO THE MIDMORNING
HOURS. THEREAFTER, EXPECT GUSTY SOUTHWEST WINDS TO PICK UP THROUGH
THE AFTERNOON WITH GUSTS BETWEEN 25 AND 30 KTS AND DIRECTIONAL
VARIABILITY BETWEEN 190 AND 230. GUST SPEED AND FREQUENCY WILL
DECREASE AFTER SUNSET. PERIODS OF HIGH CLOUD COVER ARE EXPECTED WITH
HIGH TEMPERATURES PEAKING JUST BELOW 100 DEGREES.
FOR THE REST OF SOUTHERN NEVADA, NORTHWEST ARIZONA AND SOUTHEAST
CALIFORNIA...FOR THE 12Z FORECAST PACKAGE...GUSTY SOUTH-SOUTHWEST
WINDS WILL PICK UP DURING THE LATE MORNING AND EARLY AFTERNOON HOURS
ACROSS THE LAS VEGAS VALLEY AND COLORADO RIVER VALLEY WITH GUST
SPEEDS PEAKING BETWEEN 25 AND 30 KTS. KBIH CAN EXPECT ELEVATED
DIURNAL WINDS. KDAG WILL SEE WESTERLY WINDS THROUGH THE PERIOD, WITH
A PUSH OF STRONGER GUSTS TO NEAR 30 KNOTS BY LATE AFTERNOON THAT
WILL CONTINUE OVERNIGHT. PERIODS OF PASSING HIGH CLOUD COVER AOA
20KFT AGL EXPECTED.
FIRE WEATHER
WIDESPREAD GUSTY SOUTHWESTERLY WINDS COMBINED WITH
LOW HUMIDITY AND DRY FUELS RESULT IN ELEVATED TO CRITICAL FIRE
WEATHER CONDITIONS FOR MUCH OF THE REGION. A RED FLAG WARNING IS IN
EFFECT FOR NORTHWESTERN ARIZONA AND MOST OF SOUTHERN NEVADA TODAY.
FOR TOMORROW, THE TROUGH RESPONSIBLE FOR THESE WINDS SHIFT TO THE
EAST, BRINGING THE MAIN FOCUS FOR GUSTY SOUTHWESTERLY WINDS TO
NORTHWESTERN ARIZONA. THEREFORE, THE RED FLAG WARNING WILL REMAIN IN
EFFECT FOR ALL NORTHWESTERN ARIZONA ZONES AND THE NEVADA SIDE OF THE
COLORADO RIVER TOMORROW AS WELL. CONDITIONS ARE EXPECTED TO IMPROVE
WEDNESDAY ONWARD AS THE SYSTEM EXITS AND WINDS WEAKEN.
SPOTTER INFORMATION STATEMENT
SPOTTERS ARE ENCOURAGED TO REPORT
ANY SIGNIFICANT WEATHER OR IMPACTS ACCORDING TO STANDARD OPERATING
PROCEDURES.
DISCUSSION/FIRE WEATHER...MELTZER
AVIATION...SOULAT/CO
FOR MORE FORECAST INFORMATION...SEE US ON OUR WEBPAGE:
HTTPS://WEATHER.GOV/LASVEGAS OR FOLLOW US ON FACEBOOK AND TWITTER
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page