596  
FXUS65 KVEF 101111  
AFDVEF  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE LAS VEGAS NV  
411 AM PDT TUE JUN 10 2025  
   
SYNOPSIS  
DANGEROUS HEAT PEAKS IN INTENSITY TODAY AS HEATRISK  
RISES TO THE MAJOR CATEGORY ACROSS PARTS OF THE MOJAVE DESERT.  
ISOLATED THUNDERSTORMS WILL DEVELOP AGAIN IN THE AFTERNOON OVER  
THE SOUTHERN GREAT BASIN AND NORTHWESTERN ARIZONA. DRY, BREEZY,  
AND SLIGHTLY COOLER CONDITIONS ARE EXPECTED WEDNESDAY ONWARD.  
 
 
   
SHORT TERM  
THROUGH WEDNESDAY.  
 
MUCH LIKE MONDAY, LOW GRADE HIGH-BASED THUNDERSTORM ACTIVITY WILL  
REMAIN POSSIBLE TODAY ACROSS THE SOUTHERN GREAT BASIN, ALTHOUGH  
COVERAGE TODAY LOOKS A LITTLE REDUCED COMPARED TO THE PAST FEW  
DAYS. GUSTY OUTFLOW WINDS, BRIEF RAIN, AND A FEW LIGHTNING STRIKES  
WILL BE THE MAIN CONCERNS WITH ACTIVITY TENDING TO FAVOR LINCOLN  
COUNTY. OTHERWISE, DRY CONDITIONS ARE EXPECTED ACROSS THE REST OF  
THE REGION WITH HOT TEMPERATURES. THE HEAT LOOKS TO PEAK TODAY  
WITH MAJOR HEAT RISK ADVERTISED ACROSS PARTS OF THE MOJAVE DESERT  
INCLUDING LAS VEGAS, LAKE MEAD, DEATH VALLEY, AND BARSTOW. AN  
INCREASING SOUTHWESTERLY FLOW ALOFT WILL BEGIN TO SWEEP IN  
TOMORROW WITH A VERY MODEST DEGREE OR TWO OF COOLING EXPECTED  
ALONG WITH BREEZY SOUTHWESTERLY WINDS IN THE AFTERNOON.  
 
   
LONG TERM  
THURSDAY THROUGH MONDAY.  
 
MODELS ARE IN GOOD AGREEMENT THAT OUR AREA WILL BE IN BETWEEN RIDGING  
CENTERED OVER AZ/NM/MX AND SOME FLAVOR OF TROUGHING ALONG THE  
WEST COAST/PACIFIC NW, RESULTING IN PROLONGED SOUTHWEST FLOW ALOFT  
DURING THIS PERIOD. THIS WILL LEAD TO DRY WEATHER, TEMPERATURES  
SEVERAL DEGREES ABOVE NORMAL FOR MID JUNE, AND BREEZY AFTERNOONS.  
AT THIS TIME, WINDS LOOK LIKELY TO REMAIN BELOW ADVISORY CRITERIA,  
AND HEATRISK IS PRIMARILY MODERATE WITH ONLY SPLOTCHES OF MAJOR  
SHOWING UP SUNDAY AND MONDAY. WITH ALL THIS SAID, THE PRIMARY  
CONCERN THROUGH THE PERIOD WILL LIKELY BE HEAT-RELATED IMPACTS TO  
VULNERABLE POPULATIONS, SUCH AS THOSE WITHOUT AIR CONDITIONING OR  
WHO HAVE TO REMAIN OUTSIDE FOR LONG PERIODS.  
 
 
   
AVIATION...FOR HARRY REID...FOR THE 12Z FORECAST PACKAGE  
LIGHT  
WINDS WILL CONTINUE THROUGH MID-MORNING BEFORE SETTLING INTO AN  
EASTERLY DIRECTION BEFORE 18Z. A BRIEF PERIOD OF SOUTHEAST WINDS IS  
INCLUDED IN THE TAF FROM AROUND 20Z TO 23Z BEFORE TURNING SOUTH TO  
SOUTHWEST. HOWEVER, CONFIDENCE IS LOW FOR THIS PERIOD OF SOUTHEAST  
WINDS, AS NOT ALL GUIDANCE INDICATES THIS, AND WINDS MAY SHIFT  
DIRECTLY FROM THE EAST TO THE SOUTHWEST. REGARDLESS OF THE ABOVE,  
WINDS WILL BECOME SOUTH TO SOUTHWEST BY 00Z, AND GUSTS TO 23 KNOTS  
CAN BE EXPECTED THROUGH THE EVENING. THE GUSTINESS IS EXPECTED TO  
SUBSIDE OVERNIGHT BUT WILL RETURN BY MID-MORNING TOMORROW. ISOLATED  
CONVECTION IS STILL POSSIBLE OVER THE SOUTHERN GREAT BASIN TODAY,  
BUT COVERAGE WILL BE LESS THAN WHAT WAS SEEN YESTERDAY, AND THE  
CHANCE OF AN OUTFLOW REACHING THE VALLEY THIS AFTERNOON IS MINIMAL.  
VFR CONDITIONS ARE EXPECTED THROUGHOUT THE TAF PERIOD, AND  
TEMPERATURES ARE ONCE AGAIN EXPECTED TO EXCEED 100F FROM 19Z THROUGH  
04Z, WITH A MAXIMUM TEMPERATURE OF 108F EXPECTED AROUND 00Z.  
 
FOR THE REST OF SOUTHERN NEVADA, NORTHWEST ARIZONA AND SOUTHEAST  
CALIFORNIA...FOR THE 12Z FORECAST PACKAGE...CONDITIONS AT THE LAS  
VEGAS AREA TAF SITES WILL BE SIMILAR TO THOSE DESCRIBED ABOVE FOR  
HARRY REID. ISOLATED AREAS OF CONVECTION ARE POSSIBLE ONCE AGAIN  
ACROSS THE SOUTHERN GREAT BASIN AND OVER THE NORTHERN WHITE  
MOUNTAINS THIS AFTERNOON, ALTHOUGH THE IMPACTS WILL BE LESS WHEN  
COMPARED TO YESTERDAY. A PERIOD OF WESTERLY WINDS OFF THE SIERRA IS  
EXPECTED AT KBIH LATE IN THE AFTERNOON AND EARLY EVENING. WINDS AT  
THE OTHER TAF SITES WILL FOLLOW TYPICAL DIURNAL PATTERNS. VFR  
CONDITIONS ARE EXPECTED AT ALL AREA TERMINALS THROUGH WEDNESDAY.  
HOWEVER, CIGS AROUND 8KFT AGL AND REDUCED VISIBILITIES DUE TO HEAVY  
RAIN WILL BE POSSIBLE NEAR AREAS OF CONVECTION.  
 
 
   
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 TUE, JUN 10 WED, JUN 11  
RECORD(YR) RECORD(YR)  
 
LAS VEGAS 109(2022)* 109(2022)*  
BISHOP 103(2022)* 104(2022)  
NEEDLES 121(1910) 122(1918)  
DAGGETT 110(1994)* 110(2022)  
KINGMAN 109(1921) 107(1918)  
DESERT ROCK 104(2022)* 105(2022)  
DEATH VALLEY 125(2013) 122(2022)  
 
 
   
SPOTTER INFORMATION STATEMENT  
SPOTTERS ARE ENCOURAGED TO REPORT  
ANY SIGNIFICANT WEATHER OR IMPACTS ACCORDING TO STANDARD OPERATING  
PROCEDURES.  
 
 
 
 
 
SHORT TERM...OUTLER  
LONG TERM...MORGAN  
AVIATION...PLANZ  
CLIMATE...SOULAT  
 
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