One person 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.
One person 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 Sep 16, 8:53 PM PST, 3 hours 7 minutes earlier.
Area Forecast Discussion National Weather Service Las Vegas NV 953 PM PDT Sun Sep 16 2018 .SYNOPSIS...Dry southwesterly flow aloft will keep conditions warm and rain free for the week ahead. Temperatures will average a few degrees above normal each day and periodic southwesterly breezes can be expected throughout the week. && .UPDATE...Breezy conditions subsided as anticipated into the evening and will continue through the overnight hours before picking back up tomorrow late morning. No changes to the forecast needed. && .PREVIOUS DISCUSSION... Issued at 200 PM PDT Sun Sep 16 2018 .SHORT TERM...through Tuesday Night. The weak moisture returns over Mohave County should linger overnight, however decreased cloud cover from previous forecast as cloud development this afternoon was underwhelming. Otherwise, no changes made to the overnight forecast. Breezy winds will subside per usual after sunset. The midlevel moisture over western AZ will be scoured out Monday afternoon as dry southwest flow reinvigorates itself over the region. Less clouds expected on Monday. Winds will increase in the afternoon but will continue their downward trend with gusts topping out around 20-25MPH in most locations Monday, and then even less on Tuesday. Temperatures will gradually decrease a few degrees each day through Wednesday with near normal temperatures expected by Tuesday as a broad scale trough aloft brings in a slightly cooler airmass. && .LONG TERM...Wednesday through Sunday. By Wednesday, the aforementioned trough will be draped across the region and is expected to move out of the area by Thursday. Models have not been resolving the small scale features with this trough very well, but the overall impacts expected with this feature are still just breezy winds and a slight decrease temperatures. Models are still indicating that an easterly wave to our south will possibly push up some low level moisture by FRI. This moisture looks fairly low grade, and as of yet, only gets into portions of southeastern Mohave County. With the increased moisture and some decent instability in place, there could be a few showers and thunderstorms Friday afternoon across southeastern Mohave County. Elsewhere should remain dry with a few more clouds in the sky. Beyond Friday, models diverge but are hinting at the development of yet another upper low over the Pacific NW. && .FIRE WEATHER...Dry and breezy conditions expected again today although wind speeds will be a bit lighter than those observed Saturday. Meanwhile, improved moisture recovery is expected across Northwest Arizona today and Monday as a modest moisture push clips the area. Conditions for the week ahead will remain dry with occasionally gusty southwest winds. && .AVIATION...For McCarran...Another episode of initially south and southeast winds becoming southwesterly through the afternoon hours looks likely again today. However, wind speeds shouldn't be a strong as gust potential should be capped at about 30 kts this afternoon. The best potential for the stronger gusts will again be between 21- 23Z. A shift back to southerly and southeasterly light winds are expected in the morning again. No other impacts beyond wind expected. For the rest of southern Nevada, northwest Arizona and southeast California...Typical diurnal flow is expected for all sites. Predominantly dry and southwest flow will continue to be the main aviation concern as winds get gusty in the afternoon hours. Max gust potential should be around 25 kts but subside around dusk. && && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures. && SHORT TERM...Wolf LONG TERM....Kryston AVIATION...TB3 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.
One person 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 | 2018-09-17 | 58 | Male | Outside/Open Areas | Direct |
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, September 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: 783404.