Six people died in Las Vegas of heat related causes.
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.
Six people died in Las Vegas 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 15, 8:55 PM PST, 3 hours 5 minutes earlier.
Area Forecast Discussion National Weather Service Las Vegas NV 955 PM PDT Sun Jul 15 2018 .SYNOPSIS...Thunderstorm chances will continue to decrease Monday before increasing Tuesday and through the rest of the week. Temperatures will hold near seasonal normals for much of the week. && .UPDATE...Thunderstorms have dissipated over most of the forecast area except Esmeralda County into central Nevada. The base of a trough over northern California was providing dynamic support and will continue to do so until after midnight. The PoP/WX grids were updated with these latest trends for the overnight period. && .PREV DISCUSSION... 213 PM PDT Sun Jul 15 2018 .SHORT TERM...Tonight through Monday. TONIGHT: So far things have developed much slower with convection remaining fairly weak and mostly isolated to the higher terrain in Clark, Mohave, Esmeralda, Lincoln and Nye Counties. This is a response to ridge of high pressure nosing in from the Pacific which has brought increased subsidence over the area. Thunderstorms will continue to favor the terrain through the afternoon while increasing in strength across Mohave County; although storm motion is weak at around 5-10 MPH, storms that develop will slowly move southeast, except across Mohave County where outflow propagation will aid a westward storm motion. Given weak steering flow and possible anchored/training storms over the terrain along very moist airmass, flooding will be concern today. The other concern going with afternoon storms will moderate outflow winds. DCAPE will continue to increase in most areas over the next several hours, so even weak convection may produce sudden, gusty outflows. Convection will wane this evening with the loss of diurnal heating, however CAMs indicate convection across Esmeralda County may persist into the evening. MONDAY: There will be chance of showers early Monday morning across far southern Mohave County as a MCV develops from Sunday's residual convection over central Arizona. Otherwise, diurnal trends will be similar to Sunday with less thunderstorm coverage as the ridge firmly positions itself over the forecast area. With increasing heights will come a bump in temperatures. No excessive heat products are in effect Overall, afternoon highs will run about 2-4 degrees above normal but with the moisture it will feel very hot, especially for heat sensitive groups. .LONG TERM...Tuesday through Sunday. After another relatively down day Tuesday, the aforementioned easterly wave will move through the area WED which should increase thunderstorm activity areawide through THU. The latest GFS isn't quite as hefty with bulk shear values like yesterday's run, but DCAPE values are +1500 J/kg for most of the area WED-THU. With sufficient DCAPE values the threat with storms would still be strong outflows capable of producing strong to severe winds. As the wave moves off the west coast WED-THU the high pressure overhead will begin to shift eastward, eventually moving over New Mexico and west Texas by late week. The eastward placement of the high should result in some dry air off the SoCal coast to filter in across southwestern portions of our CWA by FRI. Lingering moisture combined with daytime heating will still allow for thunderstorms to develop mainly along higher terrain FRI afternoon. Beyond FRI, models begin to differ in the placement of the high, but overall they seem to be trending toward shifting the high pressure center back over the four corners region by the weekend, which would lead to more scattered thunderstorm activity across the area. Besides storm chances, expect light winds less than 10 mph, temperatures near normal for mid July and partly sunny to partly cloudy skies. && .AVIATION...For McCarran...A persistent east-southeast component this evening may occasionally gust around 15 knots then decrease by midnight. Afterward, wind components generally less than 7 knots and SCT-BKN cloud with bases above 10 Kft are expected through Monday. For the rest of southern Nevada, northwest Arizona and southeast California...Thunderstorms near central Nevada will diminish between 09Z and 12Z. The rest of the region will see tranquil weather across southern Nevada and surroundings areas through early Monday morning with SCT-BKN clouds with bases above 10 Kft. Isolated to scattered thunderstorms Monday afternoon will be confined to south central Nevada and northwest Arizona. && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures. && UPDATE/AVIATION...Adair SHORT TERM...Boothe LONG TERM....Kryston 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.
1 heat. Local standard time, as filed.
Six people died in Las Vegas 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 | 2018-07-16 | 47 | Male | Outside/Open Areas | Indirect |
| Heat, Las Vegas Valley | 2018-07-17 | 59 | Male | Outside/Open Areas | Indirect |
| Heat, Las Vegas Valley | 2018-07-17 | 64 | Male | Outside/Open Areas | Indirect |
| Heat, Las Vegas Valley | 2018-07-19 | Male | Outside/Open Areas | Direct | |
| Heat, Las Vegas Valley | 2018-07-17 | 79 | Female | Permanent Home | Direct |
| Heat, Las Vegas Valley | 2018-07-18 | 99 | Female | Permanent Home | 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: 773535.