Three people died of heat-related causes - two in the Las Vegas Valley, and one in the Lake Mead National Recreation Area. Temperatures were below locally defined Excessive Heat Warning criteria.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS VEF wrote it up.
Three people died of heat-related causes - two in the Las Vegas Valley, and one in the Lake Mead National Recreation Area. Temperatures were below locally defined Excessive Heat Warning criteria.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Las Vegas, NV wrote its last area forecast discussion before the first event at Aug 3, 8:45 AM PST, 3 hours 15 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAS VEGAS NV 945 AM PDT TUE AUG 3 2010 .SYNOPSIS...MOISTURE AND INSTABILITY WILL PERSIST OVER MOHAVE COUNTY RESULTING IN A CHANCE OF AFTERNOON AND EVENING THUNDERSTORMS THROUGH THURSDAY. THUNDERSTORM CHANCES WILL SPREAD INTO LINCOLN COUNTY AND THE MOUNTAINS OF CLARK COUNTY WEDNESDAY AND THURSDAY AS A DISTURBANCE MOVES ACROSS THE AREA FROM THE SOUTH. TEMPERATURES TO BE NEAR NORMAL. && .UPDATE...FORECAST WAS IN PRETTY GOOD SHAPE FOR TODAY BUT DID MAKE SOME MINOR TWEAKS TO POP/WX/SKY GRIDS. 12Z MODEL RUNS BRING STABLE AIR INTO SOUTHWEST MOHAVE COUNTY WHILE SPREADING SOME MOISTURE AND INSTABILITY INTO FAR NORTHEAST CLARK AND SE LINCOLN COUNTY. ADJUSTED GRIDS TO REFLECT THIS TREND ALTHOUGH THESE ADJUSTMENTS WERE PRETTY MINOR. -HARRISON- && .PREV DISCUSSION... 245 AM PDT TUE AUG 3 2010 .SHORT TERM...TODAY THROUGH THURSDAY NIGHT...SOUTHWEST FLOW REMAINS ACROSS MUCH OF SOUTHEAST CALIFORNIA AND SOUTHERN NEVADA WHICH WILL CONTINUE TO RESULT IN DRY AND STABLE CONDITIONS ACROSS THE AREA TODAY. MEANWHILE MOIST/UNSTABLE CONDITIONS CONTINUE JUST TO THE EAST OF THE CWA. THUS MOHAVE COUNTY CONTINUES TO BE THE IN BETWEEN AREA WITH ENOUGH INSTABILITY/MOISTURE TO MENTION ISOLATED/SCATTERED MAINLY AFTERNOON/EVENING CONVECTION OVER THE AREA. BY WEDNESDAY... WEAK CIRCULATION WHICH HAS BEEN DISCUSSED THE PAST FEW DAYS OVER SOUTHWEST ARIZONA BEGINS TO LIFT NORTH ACROSS MAINLY MOHAVE COUNTY BUT WILL DRAW MOISTURE FURTHER WEST INTO CLARK AND LINCOLN COUNTIES...RESULTING IN A SLIGHT CHANCE OF THUNDERSTORMS OVER THE SOUTHERN NEVADA MOUNTAINS. AS THIS SYSTEM CONTINUES TO SHIFT NORTHEAST OUT OF THE AREA...ENOUGH DYNAMICS ON THURSDAY TO CONTINUE MENTION OF THUNDERSTORMS MAINLY OVER THE MOUNTAINS OF SOUTHERN NEVADA AND NORTHWEST ARIZONA. HOWEVER IF THE SYSTEM SHIFTS OUT OF THE AREA A LITTLE QUICKER...PER THE GFS...MAY NEED TO DECREASE POPS ON THURSDAY. TEMPERATURES TO REMAIN NEAR NORMAL THROUGH THE PERIOD. .LONG TERM...FRIDAY THROUGH MONDAY NIGHT. MODELS CONTINUE TO SHOW GOOD CONTINUITY IN THE EXTENDED...SO MINIMAL CHANGE WAS NEEDED TO INHERITED GRIDS. A TROUGH OF LOW PRESSURE OFF THE COAST WILL DEEPEN AND PASS OVER THE REGION THIS WEEKEND. THIS WILL HELP SCOUR OUT MOISTURE THAT HAS BEEN IN PLACE ACROSS THE REGION...WITH PRECIPITABLE WATER VALUES FALLING BY ABOUT 50 PERCENT FROM CURRENT LEVELS BY SUNDAY AFTERNOON. HAVE REMOVED MENTION OF ANY THUNDERSTORMS FROM THE EXTENDED FORECAST WITH THIS IN MIND AND CONDITIONS EXPECTED TO REMAIN THERMODYNAMICALLY STABLE. TEMPERATURES ARE EXPECTED TO REMAIN RIGHT AROUND EARLY AUGUST NORMS. && .AVIATION...FOR MCCARRAN...NO SIGNIFICANT WEATHER IS EXPECTED...WITH WINDS REMAINING OUT OF SOUTH IN GENERAL. MOISTURE IS VERY LIMITED AND DON/T EXPECT ANY PRECIPITATION OVER THE LOCAL MOUNTAINS. THE CLOSEST PRECIPITATION WILL BE EASTERN MOHAVE COUNTY. FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST CALIFORNIA...GENERALLY SOUTHERLY FLOW WITH HIGHER AFTERNOON GUSTS. ANY THUNDERSTORM ACTIVITY THIS AFTERNOON WILL BE LIMITED TO MOHAVE COUNTY OVER HIGHER TERRAIN. && .VEF WATCHES/WARNINGS/ADVISORIES... NV...NONE. AZ...NONE. CA...NONE. && JENSEN/KENNEDY HTTP://WEATHER.GOV/LASVEGAS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LAS VEGAS NV 549 AM PDT TUE AUG 3 2010 AZZ001>003-036-040000- NORTHWEST PLATEAU-LOWER COLORADO RIVER VALLEY-NORTHWEST DESERTS- LAKE MEAD NATIONAL RECREATION AREA- 549 AM MST TUE AUG 3 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST ARIZONA. .DAY ONE...TODAY AND TONIGHT SCATTERED AFTERNOON AND EVENING THUNDERSTORMS ARE EXPECTED ACROSS THE AREA TODAY. THE MAIN CONCERN WITH THESE STORMS WILL BE BRIEF HEAVY RAINFALL AND LOCAL GUSTY WINDS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY SCATTERED AFTERNOON AND EVENING THUNDERSTORMS ARE EXPECTED TO CONTINUE INTO THURSDAY BEFORE DRYING TAKES PLACE FRIDAY INTO MONDAY. BRIEF HEAVY RAINFALL AND GUSTY WINDS WILL CONTINUE TO BE THE MAIN CONCERN WITH THE STORMS WEDNESDAY AND THURSDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. HOWEVER, SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. CAZ519>526-NVZ014-016-017-020-022-040000- EASTERN SIERRA SLOPES-OWENS VALLEY-WHITE MOUNTAINS OF INYO COUNTY- DEATH VALLEY NATIONAL PARK-WESTERN MOJAVE DESERT- EASTERN MOJAVE DESERT-MORONGO BASIN-CADIZ BASIN- ESMERALDA AND CENTRAL NYE COUNTY-NORTHEAST CLARK COUNTY- WESTERN CLARK AND SOUTHERN NYE COUNTY-LAS VEGAS VALLEY- SOUTHERN CLARK COUNTY- 549 AM PDT TUE AUG 3 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CALIFORNIA AND SOUTHERN NEVADA. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. HOWEVER, SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. CAZ527-NVZ015-018-019-021-040000- SAN BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY-LINCOLN COUNTY- SHEEP RANGE-SPRING MOUNTAINS-LAKE MEAD NATIONAL RECREATION AREA- 549 AM PDT TUE AUG 3 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CALIFORNIA AND SOUTHERN NEVADA. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY ISOLATED AFTERNOON AND EVENING THUNDERSTORMS ARE EXPECTED TO FORM WEDNESDAY AND THURSDAY MAINLY OVER THE MOUNTAINS WITH BRIEF HEAVY RAINFALL AND GUSTY WINDS POSSIBLE. BY FRIDAY AND THEN CONTINUING INTO MONDAY DRIER AIR WILL MOVE OVER THE AREA ENDING THE CHANCES OF THUNDERSTORMS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. HOWEVER, SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
The national radar mosaic for the moment the first event began.
2 heat. Local standard time, as filed.
Two people died of heat-related causes.
One person died of heat-related causes.
As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.
| Event | Date | Age | Sex | Where | Kind |
|---|---|---|---|---|---|
| Heat, Las Vegas Valley | 2010-08-03 | 82 | Female | Permanent Home | Direct |
| Heat, Las Vegas Valley | 2010-08-06 | 63 | Female | Permanent Home | Direct |
| Heat, Lake Mead/Lake Mohave National Recreation Area | 2010-08-06 | 86 | Male | Outside/Open Areas | Direct |
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nevada in 2010Every state in 2010This day in weather historyWarnings in Nevada, August 2010
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 250647, 250648.