155
FXUS65 KVEF 040435
AFDVEF
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
935 PM PDT MON AUG 3 2026
KEY MESSAGES
* DANGEROUS HEAT WILL REMAIN THE PRIMARY WEATHER CONCERN THROUGH
SATURDAY, WITH WIDESPREAD MODERATE TO MAJOR HEAT RISK.
* MONSOON MOISTURE WILL BEGIN TO RETURN LATE IN THE WEEK, WITH
CHANCES FOR ISOLATED THUNDERSTORMS RETURNING.
DISCUSSION
TODAY THROUGH NEXT WEEKEND.
HOT CONDITIONS CONTINUE ACROSS THE REGION THIS AFTERNOON, ALTHOUGH
THERE IS A BARELY NOTICABLE 1-2 DEGREES OF COOLING COMPARED TO
THIS TIME YESTERDAY. HIGH PRESSURE CURRENTLY CENTERED OVER CENTRAL
ARIZONA WILL GRADUALLY EXPAND AND DRIFT NORTHWARD OVER THE COMING
DAYS, BECOMING A NEAR 600DM HIGH PRESSURE RIDGE OVER EASTERN
NV/WESTERN UT BY FRIDAY AFTERNOON. THIS WILL ALLOW FOR CONTINUED
GRADUAL WARMING THROUGH THE WEEK. MEANWHILE, SOME MODEST MONSOONAL
MOISTURE WILL BEGIN TO CREEP UP THE COLORADO RIVER VALLEY LATE IN
THE WEEK, WITH A RETURN OF SOME SUBTLE HUMIDITY AS WELL THURSDAY
ONWARD - WHICH MAINLY WILL WORK TO KEEP OVERNIGHT LOWS ELEVATED.
WITH THE EXPECTED CONTINUATION OF WIDESPREAD MODERATE TO MAJOR HEAT
RISK ACROSS THE AREA, ALL HEAT HEADLINES HAVE BEEN EXTENDED THROUGH
SATURDAY.
MEANWHILE, WE CONTINUE TO PATIENTLY AWAIT THE RETURN OF MONSOONAL
MOISTURE. AS THE HIGH EXPANDS AND BUILDS NORTH, A SUBTLE INCREASE IN
PRECIPITABLE WATER VALUES IS EXPECTED AS MOISTURE DRIFTS WEST
BENEATH THE HIGH. THIS INCREASE WILL BE MOST PRONOUNCED ACROSS OUR
SOUTHERN ZONES, AND MAY AT TIMES BE BOOSTED BY STORM COMPLEXES IN
ARIZONA AND NORTHERN MEXICO LATE IN THE WEEK. HOWEVER, MID-LEVELS
WILL REMAIN WARM THROUGH LATE WEEK AND SUBSIDENCE NEAR THE HIGH
PRESSURE CENTER WILL REMAIN FAIRLY DOMINANT, KEEPING THUNDERSTORM
CHANCES PRIMARILY FOCUSED ACROSS NORTHWEST ARIZONA. LONGER RANGE
GUIDANCE DOES HINT AT SOME DEEPER MOISTURE DEVELOPING NORTHWARD
SUNDAY INTO MONDAY OF NEXT WEEK WHEN STORM CHANCES MAY SPREAD ACROSS
MORE OF THE AREA.
AVIATION...FOR HARRY REID...FOR THE 06Z FORECAST PACKAGE
OUTFLOW
FROM STORMS OVER SOUTHERN ARIZONA TONIGHT WILL BRING GUSTY SOUTH-
SOUTHEASTERLY WINDS TO THE REGION BRIEFLY LATE-MORNING INTO THE
EARLY-AFTERNOON BEFORE WINDS GRADUALLY VEER SOUTHWESTERLY THROUGH
THE AFTERNOON WITH GUSTS AROUND 20 KTS. GUSTS DECREASE IN SPEED AND
FREQUENCY AFTER SUNSET. TEMPERATURES WILL EXCEED 100 DEGREES BETWEEN
16 AND 05Z ON TUESDAY, WITH A HIGH OF 112.
FOR THE REST OF SOUTHERN NEVADA, NORTHWEST ARIZONA AND SOUTHEAST
CALIFORNIA...FOR THE 06Z FORECAST PACKAGE...EXPECT CONTINUED GUSTY
SOUTH-SOUTHWESTERLY AFTERNOON WINDS FOR LAS VEGAS VALLEY AND
COLORADO RIVER VALLEY TAF SITES, WITH SPEEDS AROUND 20 KTS. CANNOT
RULE OUT OCCASIONAL SOUTHERLY GUSTS OVERNIGHT AT KEED AND KIFP DUE
TO OUTFLOW FROM ARIZONA THUNDERSTORMS. WITH OCCASIONAL GUSTS, EXPECT
GUST SPEEDS BETWEEN 20 AND 30 KTS. KDAG WILL GUST TUESDAY AFTERNOON
FROM THE WEST AND KBIH WILL EXPERIENCE LIGHT AND DIURNAL WIND
PATTERNS.
CLIMATE
NUMEROUS CLIMATE LOCATIONS HAVE A FORECAST HIGH
TEMPERATURE AND/OR FORECAST WARM LOW TEMPERATURE WITHIN 3 DEGREES OF
THE DAILY RECORD.
THE TABLE BELOW SHOWS THE DAILY RECORD MAXIMUM TEMPERATURE AND THE
YEAR THE RECORD WAS LAST SET. AN ASTERISK (*) DENOTES WHICH RECORDS
ARE IN JEOPARDY (WITHIN 3 DEGREES OF THE FORECAST).
MAX MON, AUG 3 TUE, AUG 4 WED, AUG 5 THU, AUG 6
RECORD(YR) RECORD(YR) RECORD(YR) RECORD(YR)
LAS VEGAS 116(1979)* 114(1979)* 113(2024)* 114(2024)*
BISHOP 106(2020)* 105(2020)* 105(2024)* 106(2024)*
NEEDLES 119(1969) 121(2021) 119(2019) 118(2018)
DAGGETT 112(1992)* 114(2021)* 114(1998)* 114(1997)
KINGMAN 105(2024)* 107(2021) 107(2019) 109(1920)
DESERT ROCK 108(1979)* 109(2021)* 108(2024)* 109(2024)*
DEATH VALLEY 127(1993) 126(2021) 125(1936)* 127(2017)
THE TABLE BELOW SHOWS THE DAILY RECORD WARM MINIMUM TEMPERATURE AND
THE YEAR THE RECORD WAS LAST SET. AN ASTERISK (*) DENOTES WHICH
RECORDS ARE IN JEOPARDY (WITHIN 3 DEGREES OF THE FORECAST).
WARM MIN MON, AUG 3 TUE, AUG 4 WED, AUG 5 THU, AUG 6
RECORD(YR) RECORD(YR) RECORD(YR) RECORD(YR)
LAS VEGAS 89(2024)* 89(2024)* 89(2024)* 91(2024)*
BISHOP 66(1995) 75(1961) 68(1971) 69(1979)
NEEDLES 93(1969)* 94(1908) 94(2024) 94(2021)
DAGGETT 85(1980)* 82(1974)* 83(1998)* 84(1983)*
KINGMAN 80(1946)* 78(2024)* 78(2024)* 79(2019)*
DESERT ROCK 79(2016)* 79(2018)* 81(2015)* 82(1994)*
DEATH VALLEY 100(1921)* 100(1925) 100(1915)* 99(2024)*
SPOTTER INFORMATION STATEMENT
SPOTTERS ARE ENCOURAGED TO REPORT
ANY SIGNIFICANT WEATHER OR IMPACTS ACCORDING TO STANDARD OPERATING
PROCEDURES.
DISCUSSION...OUTLER
AVIATION...SOULAT
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