Seven people died of heat-related causes between July 24th and 30th - six in the Las Vegas Valley, and one in the Lake Mead National Recreation Area. Although July was the hottest calendar month on record in Las Vegas, temperatures were below locally defined Excessive Heat Warning criteria during the last week of the month.
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.
Seven people died of heat-related causes between July 24th and 30th - six in the Las Vegas Valley, and one in the Lake Mead National Recreation Area. Although July was the hottest calendar month on record in Las Vegas, temperatures were below locally defined Excessive Heat Warning criteria during the last week of the month.
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 Jul 24, 8:15 AM PST, 3 hours 45 minutes earlier.
AREA FORECAST DISCUSSION UPDATE NATIONAL WEATHER SERVICE LAS VEGAS NV 915 AM PDT SAT JUL 24 2010 .SYNOPSIS...MOIST AND UNSTABLE AIR WILL LINGER OVER NORTHWEST ARIZONA AND SOUTHEAST NEVADA THROUGH TODAY...THEN SPREAD TO THE NORTH AND WEST SUNDAY AND MONDAY. THIS WILL LEAD TO A GRADUAL EXPANSION OF ISOLATED THUNDERSTORMS INTO SOUTHEAST CALIFORNIA AND CENTRAL NEVADA. AN AREA OF LOW PRESSURE APPROACHING THE CENTRAL CALIFORNIA COAST WILL AID THUNDERSTORM DEVELOPMENT OVER THE SOUTHERN SIERRA SUNDAY. && .UPDATE...CURRENT FORECAST LOOKS RIGHT ON TRACK...SO NO UPDATES WILL BE NEEDED THIS MORNING. SUFFICIENT MOISTURE LARGELY STILL IN PLACE ACROSS MOHAVE COUNTY FOR SCATTERED THUNDERSTORM DEVELOPMENT THROUGH THE DAY...AS WELL AS ISOLATED CONVECTION ACROSS THE HIGHER ELEVATIONS OF CLARK COUNTY. OVERALL PW VALUES HAVE DROPPED SLIGHTLY FROM YESTERDAY AT THIS TIME...BUT SURFACE DEWPOINTS HAVE INCREASED SLIGHTLY. SHORT TERM MODEL PROGS INDICATE SLIGHT WARMING TO BEGIN TO OCCUR FROM WEST TO EAST AT MID LEVELS STARTING THIS AFTERNOON...WHICH COULD REALLY LIMIT CONVECTIVE POTENTIAL WEST OF MOHAVE TODAY...ESPECIALLY AS THE MID LEVEL WEAKNESS STILL EVIDENT IN WV IMAGERY OVER CENTRAL AZ CONTINUES TO SLOWLY MOVE AWAY FROM THE FORECAST AREA. TODAY MAY BE ONE OF THOSE DAYS WHERE WE SEE MOST OF THE CONVECTION BY NOON/EARLY AFTERNOON...THEN DIMINISHING SIGNIFICANTLY AS EARLY AS 3 PM. -KENNEDY- && .AVIATION...FOR MCCARRAN...WINDS GENERALLY LESS THAN 10KTS THROUGH 05Z SUNDAY WITH A EASTERLY DIRECTION THROUGH 00Z THEN BECOMING SOUTHWEST. LOCAL GUSTS TO NEAR 20KTS OVERNIGHT BEFORE DROPPING TO LESS THAN 10KTS ONCE AGAIN ON SUNDAY. POSSIBLE LATE MORNING THROUGH EVENING THUNDERSTORMS MAINLY NEAR THE PEACH SPRINGS CORRIDOR WITH ONLY A SLIGHT CHANCE OVER OUR NEARBY MOUNTAINS FOR THE WEEKEND. FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST CALIFORNIA...SCATTERED THUNDERSTORMS ARE EXPECTED TODAY ACROSS ACROSS NORTHWEST ARIZONA WITH ISOLATED ACTIVITY OVER THE MOUNTAINS OF SOUTHERN NEVADA AND INYO COUNTY CALIFORNIA RESULTING IN CLOUDS SCT-BKN140-160. WINDS WILL FOLLOW DIURNAL DIRECTIONAL TRENDS LATE AT NIGHT AND IN THE EARLY MORNING BECOMING SOUTHWEST THIS AFTERNOON AND EVENING 8-12 KTS SUSTAINED WITH GUSTS OF 15-20 KTS. THE MAIN THREAT IN AND NEAR TSRA WILL BE GUSTY AND ERRATIC WINDS. -JENSEN- && .PREV DISCUSSION... 251 AM PDT SAT JUL 24 2010 .SHORT TERM...SATELLITE LOOKS NEARLY THE SAME AS 24 HOURS AGO AS THE COLORADO RIVER ROUGHLY SEPARATES CLOUDY SKIES TO THE EAST FROM CLEAR SKIES TO THE WEST. THE CLOUDS OVER ARIZONA ARE ASSOCIATED WITH THE PRONOUNCED WEAKNESS IN THE MID LEVEL RIDGE WHICH HAS REMAINED NEARLY STATIONARY SINCE YESTERDAY. AS THIS FEATURE DRIFTS EVER SO SLOWLY TO THE EAST OVER THE WEEKEND...WE COULD SEE A LITTLE BIT OF DRYING OVER MOHAVE COUNTY...BUT AT THE SAME TIME A LITTLE MORE EASTERLY FLOW COULD ADVECT A FINGER OF MOISTURE ACROSS THE DESERT TOWARD THE SOUTHERN SIERRA. THIS REPRESENTS ONLY A MINOR CHANGE FROM PREVIOUS THINKING...AND MADE FEW CHANGES TO THE GRIDS. TEMPERATURES WILL REMAIN ABOVE NORMAL AND JUST A COUPLE OF DEGREES UNDER EXCESSIVE HEAT LEVELS THROUGH THE WEEKEND BEFORE FALLING A FEW DEGREES ON MONDAY AS MOISTURE SLOSHING BACK INTO OUR AREA BRINGS INCREASED CLOUDS AND PRECIP CHANCES. .LONG TERM...LITTLE CHANGE IN THE MEDIUM RANGE MODELS AS TUESDAY AND WEDNESDAY STILL LOOK TO BE THE BEST DAYS TO SEE MORE WIDESPREAD THUNDERSTORM COVERAGE. A STRONGER SOUTHEAST TO SOUTH PUSH OF MOISTURE IS FORECAST TO BRING HIGHER PW VALUES AND DEWPOINTS FURTHER WEST TUESDAY ALONG WITH HIGH VALUES OF THETA E. MOST OF THE EASTERN TWO THIRDS OF THE CWA WILL SEE AT LEAST A CHANCE OF THUNDERSTORMS. A WEAK TROUGH OFF THE CALIFORNIA COAST IS FORECAST TO STRENGTHEN SLIGHTLY THURSDAY AND FRIDAY WHICH WILL INCREASE THE SOUTHWEST FLOW AND PUSH THE LOWER LEVEL MOISTURE EAST. IT LOOKS LIKE MOHAVE COUNTY WILL SEE AT LEAST A CHANCE OF THUNDERSTORMS THROUGH THE EXTENDED PERIOD...BUT HOW FAR WEST THE MOISTURE WILL REACH IS STILL IN QUESTION. WITH SO MANY VARIABLES IN PLAY THIS TIME OF YEAR...DID NOT WANT TO COMPLETELY DRY THINGS OUT WEST OF THE COLORADO RIVER. TEMPERATURES WILL ALSO DEPEND ON CLOUD COVER...BUT A GRADUAL WARMING TREND THROUGH THE EXTENDED PERIOD LOOKS GOOD. && .VEF WATCHES/WARNINGS/ADVISORIES... NV...NONE. AZ...NONE. CA...NONE. && MORGAN/GORELOW HTTP://WEATHER.GOV/LASVEGAS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LAS VEGAS NV 231 AM PDT SAT JUL 24 2010 AZZ001-003-250700- NORTHWEST PLATEAU-NORTHWEST DESERTS- 231 AM MST SAT JUL 24 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST ARIZONA. .DAY ONE...TODAY AND TONIGHT ISOLATED TO SCATTERED THUNDERSTORMS WILL DEVELOP AGAIN THIS AFTERNOON AND EVENING. LOCALIZED FLASH FLOODING AND DAMAGING WINDS CANNOT BE RULED OUT. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY CHANCES FOR AFTERNOON AND EVENING THUNDERSTORMS WILL CONTINUE THROUGH THE PERIOD...WITH THE BEST CHANCES EXPECTED ON TUESDAY AND WEDNESDAY. ISOLATED SEVERE WEATHER AND FLASH FLOODING WILL BE POSSIBLE EACH DAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT LIKELY. SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. AZZ002-036-CAZ519>527-NVZ014>022-250700- LOWER COLORADO RIVER VALLEY-LAKE MEAD NATIONAL RECREATION AREA- EASTERN SIERRA SLOPES-OWENS VALLEY-WHITE MOUNTAINS OF INYO COUNTY- DEATH VALLEY NATIONAL PARK-WESTERN MOJAVE DESERT- EASTERN MOJAVE DESERT-MORONGO BASIN-CADIZ BASIN- SAN BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY- ESMERALDA AND CENTRAL NYE COUNTY-LINCOLN COUNTY- NORTHEAST CLARK COUNTY-WESTERN CLARK AND SOUTHERN NYE COUNTY- SHEEP RANGE-SPRING MOUNTAINS-LAS VEGAS VALLEY- SOUTHERN CLARK COUNTY- 231 AM PDT SAT JUL 24 2010 /231 AM MST SAT JUL 24 2010/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST ARIZONA...CALIFORNIA AND SOUTHERN NEVADA. .DAY ONE...TODAY AND TONIGHT HAZARDOUS WEATHER IS NOT LIKELY THROUGH TONIGHT. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY ISOLATED AFTERNOON AND EVENING THUNDERSTORMS WILL BE POSSIBLE EACH DAY...MAINLY OVER THE HIGHER TERRAIN. THE PROBABILITY OF WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED. SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. MORGAN
The national radar mosaic for the moment the first event began.
2 heat. Local standard time, as filed.
One man died of heat related causes at Telephone Cove on Lake Mead.
Six people died of heat-related causes in the Las Vegas Valley.
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, Lake Mead/Lake Mohave National Recreation Area | 2010-07-24 | 73 | Male | Vehicle/Towed Trailer | Direct |
| Heat, Las Vegas Valley | 2010-07-30 | 53 | Male | Outside/Open Areas | Direct |
| Heat, Las Vegas Valley | 2010-07-27 | 52 | Female | Permanent Home | Direct |
| Heat, Las Vegas Valley | 2010-07-24 | 34 | Male | Permanent Structure | Direct |
| Heat, Las Vegas Valley | 2010-07-25 | 46 | Male | Permanent Structure | Direct |
| Heat, Las Vegas Valley | 2010-07-27 | 54 | Male | Permanent Structure | Direct |
| Heat, Las Vegas Valley | 2010-07-28 | 79 | Male | Permanent Structure | 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, July 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: 250643, 250644.