Eight people died in Clark County of heat related causes.
Every event with a place to put it; 2 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.
Eight people died in Clark County of heat related causes.
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 10, 1:43 PM PST, 10 hours 17 minutes earlier.
Area Forecast Discussion National Weather Service Las Vegas NV 243 PM PDT Tue Jul 10 2018 .SYNOPSIS...A very moist airmass will remain in place through much of the week. Daily thunderstorm chances will remain in the forecast through the weekend. The main threats with storms will be gusty outflow winds and heavy rainfall that could lead to flash flooding. Cooler temperatures are expected Wednesday before beginning to increase through the weekend. && Short Term...Through Wednesday night. Cluster of multi-cellular convection is ongoing around Prescott and Flagstaff early this afternoon. Elsewhere, in Mohave County starting to see isolated storms over the Virgin Mountains, east of Mesquite, and isolated storms over central Nye and western Lincoln Counties. Convection continues to be driven by an upper level disturbance over central Arizona. A lobe of vorticity in progged to pivot westward into Mohave County later this afternoon. Shear, not to the magnitude of yesterday still exist over northern Mohave County. So, expecting convection to increase in coverage across Mohave County later this afternoon and evening. Storm motion of 10-15 mph should limit flash flood threat while stronger storms will produce gusty winds to 30 mph and hail. Convergence/Divergence couplet across northern Inyo, Esmeralda and central Nye counties should continue to support isolated thunderstorms into the evening. Gusty winds would be the threat with those storms. There is some model consensus showing probably rain showers, maybe embedded with a thunderstorm or two rotating out of Mohave County into Clark County late tonight, possibly lasting into Wednesday morning. There could even be a secondary band further south rotating into southern Mohave and eastern San Bernardino counties. If the the overnight precipitation materializes it could possibly delay the onset of convection Wednesday. As of now. Slow moving disturbance will move slowly westward and continue to provide the needed dynamics for convection, especially over the higher terrain. Would expect some showers and isolated thunderstorms to persist overnight once again. .Long Term...Thursday & Beyond Plentiful moisture will remain in place and so will thunderstorm chances. A lack of significant forcing and a shifting of the high pressure system could result in slightly less activity, especially over the lower deserts. The forecast reflects this trend, with slight reductions in precip chances each day. The shifting high and potential for less convective activity would also result in rising temperatures. Highs could reach above normal by the weekend. At this time, highs look shy of excessive heat levels, but we will continue to monitor trends. && .AVIATION...For McCarran...Scattered thunderstorms within the Peach Springs corridor along with isolated thunderstorms in the remainder of the corridors this evening. Low confidence regarding any potential outflow winds this evening. If it does materialize it would likely reach the valley between 02z and 04z with gusts maybe 20-25 kts. The valley may see some rain showers or thunderstorms overnight, but again not confident in scenario so will cover with VCSH. This activity will be accompanied by cigs lowering to around 10 kft. Any storms of Wednesday look to stay primarily anchored to the higher terrain. Winds generally out of the south at or less than 10 kts. For the rest of southern Nevada, northwest Arizona and southeast California...Scattered showers and thunderstorm coverage expected over Mohave County tonight and Wednesday. Elsewhere, showers and thunderstorms will be isolated in coverage with gusty, erratic winds and cigs lowering to 5k-9 kft possible. Outside of the convective activity winds will remain around 10 knots or less under scattered to broken mid and high cloud decks. && .SPOTTER INFORMATION STATEMENT...There will be chances for thunderstorms each day through next week. Spotter activation may be needed at times. Regardless of activation, spotters are encouraged to report any significant weather or impacts according to standard operating procedures. && SHORT TERM/AVIATION...Pierce LONG TERM...Wolcott For more forecast information...see us on our webpage: http://weather.gov/lasvegas or follow us on Facebook and Twitter
The national radar mosaic for the moment the first event began.
2 heat. Local standard time, as filed.
Seven people died in Las Vegas of heat related causes.
One person died near Overton 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 | 2018-07-11 | 70 | Male | Outside/Open Areas | Direct |
| Heat, Las Vegas Valley | 2018-07-11 | 48 | Male | Outside/Open Areas | Direct |
| Heat, Las Vegas Valley | 2018-07-12 | 62 | Male | Outside/Open Areas | Direct |
| Heat, Las Vegas Valley | 2018-07-14 | 61 | Male | Outside/Open Areas | Direct |
| Heat, Las Vegas Valley | 2018-07-11 | 70 | Male | Permanent Home | Direct |
| Heat, Las Vegas Valley | 2018-07-12 | 28 | Male | Vehicle/Towed Trailer | Direct |
| Heat, Las Vegas Valley | 2018-07-15 | 29 | Male | Vehicle/Towed Trailer | Indirect |
| Heat, Northeast Clark | 2018-07-13 | 57 | Male | Outside/Open Areas | Indirect |
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nevada in 2018Every state in 2018This day in weather historyWarnings in Nevada, July 2018
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: 773534, 773533.