Two 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.
Two 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 May 9, 2:18 PM PST, 9 hours 42 minutes earlier.
Area Forecast Discussion National Weather Service Las Vegas NV 318 PM PDT Wed May 9 2018 .SYNOPSIS...Temperatures will steadily lower Thursday through the weekend as an area of low pressure moves over the Great Basin. Gusty winds will accompany the cool trend, especially on Friday. There is also a chance for showers and a few thunderstorms in areas from northern Inyo County east to northern Lincoln County Friday through early next week. && .SHORT TERM...Through Friday night. Southwest to west winds were stirring up this afternoon as a prolonged mean troughing pattern begins to work its way into our region. Southwest winds will increase Thursday then especially Friday as a closed low digs from the Pacific Northwest down over the Great Basin. This will produce a belt of gusty southwest winds across the Mojave Desert zones from western San Bernardino County extending across southern Nevada and northwest Arizona. The best potential for southwest gusts over 40 mph will be the western Mojave Desert and northwest Arizona. Also, north winds behind the associated cold front will push down through Inyo County and nearby areas of Esmeralda and central Nye counties Friday afternoon and evening where gusts over 40 mph will be possible. Showers and isolated thunderstorms were expanded a little in the Pop/Wx grids primarily over Lincoln County Friday afternoon and evening. Temperatures will lower 3-5 degrees Thursday then another 5 or so degrees Friday. .LONG TERM...Saturday through Tuesday. Good agreement between operational models and ensemble guidance this morning on a low closing off over northeast Nevada on Saturday followed by retrogression and weakening Sunday. However, agreement begins to diverge Monday, with the ECMWF ejecting the disturbance eastward Monday and the GFS keeping it through Tuesday. Over the weekend, height falls will provide some relief to the region as temperatures drop to normal or slightly below. Temps should gradually rise behind the trough early next week. Cyclonic flow aloft should access some recycled mid-level moisture across the northern Plains. This marginal moisture combined with dynamics will aid in shower development across our northern zones, especially northern Lincoln county, through the weekend and possible early next week. Grids across the aforementioned areas were increase to reflect current guidance, but kept most areas, outside of Lincoln County, below mentionable for now. With diurnal/differential heating and cold pool instability, isolated thunderstorms will be possible across the north SAT and SUN, so a chance of thunder was added. Impacts from wind will be minimal, with generally light to breezy south winds across the region through the extended. && .AVIATION...For McCarran...Southwest winds gusting 20 to 30 knots will continue through the night easing off around daybreak Thursday before increasing and becoming gusty again Thursday afternoon. Stronger winds with gusts around 35 knots are forecast for Friday. No significant clouds are expected. For the rest of southern Nevada, northwest Arizona and southeast California...Southwest winds will continue across the region tonight and Thursday with gusts up to 30 knots expected. No significant clouds. && .FIRE WEATHER...Widespread southwest winds gusting over 35 mph can be expected across Mohave County Arizona Thursday and again Friday afternoon and evening...though humidities will increase slightly Friday over northwest Arizona. A Red Flag Warning is in effect for Mohave County Thursday afternoon and evening and a Fire Weather Watch is in effect Friday afternoon and evening. Expected gusty north winds, very dry fuels and low relative humidity prompted the issuance of a Red Flag Warning for elevations below 5500 feet in the Inyo Forest, including the Owens Valley, Friday afternoon and evening as a cold front sweeps across the region. A cold front pushing south through central Nevada Friday will bring the strongest belt of southwest winds to San Bernardino, southern Nye, Clark, and Mohave Counties. At this time, fuels are not yet critical across San Bernardino, Nye and Clark Counties. && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures. && SHORT TERM/FIRE WEATHER...Adair LONG TERM...Boothe AVIATION...Salmen 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.
Two 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 | 2018-05-10 | 88 | Male | Outside/Open Areas | Direct |
| Heat, Las Vegas Valley | 2018-05-10 | 54 | 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, May 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: 756269.