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 May 10, 8:59 PM PST, 3 hours 1 minute earlier.
Area Forecast Discussion National Weather Service Las Vegas NV 959 PM PDT Sat May 10 2025 .SYNOPSIS...Warm temperatures will continue through the weekend, with increasingly gusty conditions Sunday. Widespread strong winds are expected Monday with gusts of 40-50 mph along with pockets of blowing dust. Temperatures will cool sharply on Tuesday with a slow rebound expected for the remainder of the week. && .UPDATE... After an unseasonably hot day today that saw many locations reach highs 15 to 20 degrees above normal, the cooldown this evening will be slow and gradual, with the warmer temperatures also reflected in tonight's lows. Temperatures overnight are on target to bottom out in the 60s and 70s for most, with 50s in the higher terrain. Early this evening, satellite imagery and observations indicate high cloud beginning to stream over the region from the west ahead of an approaching trough, with cumulus continuing to bubble due to the presence of midlevel moisture. Most of the showers associated with this activity have been across northern Nye and Mineral counties, though a few sprinkles remain possible, mainly across the northern reaches of Esmeralda County this evening. Thus, the only update made was to mention light showers in the aforementioned area, but otherwise, the forecast remains on track. && .PREV DISCUSSION...455 PM PDT Sat May 10 2025... .SHORT TERM... through Monday. Mostly clear skies exist this afternoon across most of the region, though there is some mid-level moisture focused near 500mb that is resulting in some flat cumulus along terrain features. Enough vertical depth may be present across the Sierra and northern Owens Valley for a brief sprinkle or two along with some gusty winds this afternoon, but otherwise not expecting much out of these clouds. Meanwhile, south-southeasterly flow is gradually strengthening with gusts of 20-30 mph noted across the Owens Valley and Southern Great Basin. While these winds aren't especially impactful, they will only be ramping up further Sunday and Monday. The bigger story this afternoon remains the heat - the high so far as of 2pm in Las Vegas is 97 degrees, but we have several more hours to go to potentially eclipse 100 degrees for the first time this year. While NBM probabilities are not especially optimistic, we are running about 5 degrees warmer than this time yesterday, and we reached 95 then, so it will be close. Death Valley is also running several degrees warmer than yesterday, and is on track to reach 110 by the days end. Tomorrow, southwesterly flow aloft increases and a strengthening cross- barrier flow develops across the Sierra and Owens Valley, potentially resulting in strong downslope winds that could spread into the US-395 corridor. This wind pattern will persist into Monday when strong winds will expand to be area-wide. Went ahead and issued a wind advisory for the Sierra, White Mountains, and Owens Valley for Sunday through Monday. At least some spotty 40 mph+ gusts are probable tomorrow across eastern Inyo County and the southern Great Basin as well, but NBM/HREF probabilities were less bullish and held off for now. As the trough axis makes its approach Monday, the pressure gradient will maximize and widespread advisory level winds are expected across the region. There is also a chance for some higher end wind gusts of 60 mph+ or greater near and downwind of the Spring Mountains including Red Rock Canyon and the Desert Rock areas. Additional wind headlines are anticipated in upcoming shifts. .LONG TERM...Tuesday through Sunday. Cold front and trough axis will push through the region on Tuesday, with sharply cooler temperatures and low end shower chances in the Sierra and Southern Great Basin. High Temperatures Tuesday afternoon will average 8-12 degrees cooler than normal, with elevated post-frontal northwesterly winds across the northern half of the forecast area, and more of a breezy westerly wind across the southern and western Mojave Desert. Temperatures will gradually moderate the remainder of the week, though there is some uncertainty beyond the weekend as an additional trough may develop and drop south, bringing renewed gusty winds and temperatures trending cooler once again. && .AVIATION...For Harry Reid...For the 06Z Forecast Package...South to southwest winds less than 10 knots will continue into tomorrow morning before south-southwest winds gusting to 30 knots return by tomorrow afternoon. There is a 1 in 3 (33 percent) chance of seeing gusts to 35 knots between 20Z and 01Z, and a 10 percent chance of seeing a gust to 40 knots. Winds will diminish somewhat after sunset tomorrow, but gusts to 20 knots will likely persist into Monday morning. Gusts over 35 knots are likely Monday afternoon. VFR conditions will prevail through Sunday with only a FEW to SCT clouds AOA 12kft AGL. For the rest of southern Nevada, northwest Arizona and southeast California...For the 06Z Forecast Package...Conditions at the Las Vegas area terminals will be similar to those described for Harry Reid, except VGT will likely see winds more easterly for a few hours tomorrow morning before turning southerly by midday. Elsewhere, light winds tonight will give way to south to southwest winds by late morning tomorrow. Most areas will see gusts of 20 to 30 knots by afternoon. The exception will be in the Owens Valley, where downslope winds along the Sierra could result in localized gusts to 40 knots. VFR conditions will prevail across the region through tomorrow with only a FEW to SCT clouds AOA 12kft AGL, mainly across southern Nevada and near the Sierra. && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures. && UPDATE...Phillipson DISCUSSION...Outler AVIATION...Planz For more forecast information...see us on our webpage: https://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 | 2025-05-11 | 47 | Male | Unknown | Direct |
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nevada in 2025Every state in 2025This day in weather historyWarnings in Nevada, May 2025
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: 1265414.