Five people died 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.
Five people died 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, 8:53 AM PST, 1 hour 7 minutes earlier.
Area Forecast Discussion National Weather Service Las Vegas NV 953 AM PDT Sun Jul 10 2022 .SYNOPSIS...Temperatures will steadily warm through the weekend and into early next week. Ridging over the Four Corners region responsible for our warming temperatures will aid in monsoonal moisture into AZ and eventually across southern NV and southeastern CA. Best storm chances are expected mid to late week next week. && .UPDATE...Another quiet morning across the region weather-wise. A few more clouds today compared to yesterday as mid level moisture has increased slightly per this morning's soundings. The quieter weather will continue through the afternoon with dry conditions expected again today. Winds will be lighter than yesterday across the region. With less mixing but building heights, high temperatures should shake out to about the same as yesterday. --Nickerson-- && .PREVIOUS DISCUSSION...228 AM PDT Sun Jul 10 2022 .SHORT TERM...through early next week. Generally, quiet and warm weather is expected to continue through the weekend and into early next week. A very expansive and strong ridge centered over the Four Corners region will continue to influence our temperatures. A weak shortwave currently moving across the PacNW will lift northeast, allowing the expansive ridge centered over the Four Corners region to expand westward with the center overhead Monday and Tuesday. As such, Monday and Tuesday will be the warmest days, bringing some of the hottest temperatures of 2022. Even with the increase in temperatures, temperatures will only peak to about 5-8 degrees above seasonal normals for both the highs and lows, resulting in widespread "Moderate" HeatRisk values. There will be some pockets of "High" HeatRisk in the Lower Colorado River Valley, where more of the general population will be susceptible to heat impacts if not properly hydrated or without adequate cooling. Locally, here in Las Vegas, we have the potential to see the first 110 degree day of the year on either Monday or Tuesday. The average day for the first 110 (or greater) day in Las Vegas is July 1st. The latest 01Z run of the NBM4.0 boasts a 50% chance of hitting or exceeding 110 on Monday with a 62% chance on Tuesday. The very broad ridge will be centered near the Four Corners region for multiple days, leading to multiple days with southeasterly flow which will aid in moisture across AZ and eventually into southern NV and southeast CA next week. The initial moisture will be confined to the mid-levels, mainly in Mohave County through the weekend and into early next week. Given the arrival of modest mid-level moisture (0.75-1,00" PWs) and warm air a lot, a mostly dry forecast will remain through early next week but a few virga showers/storms may be possible across far western Mohave County Monday and Tuesday afternoons. With a very dry sub-cloud layer early in the week, the threat for dry thunderstorms and new wildfire starts will be increased in western Mohave County. Overall, the increased mid- level moisture will mainly be evident in the form of more cumulus development, especially along the higher terrain through the weekend and into early next week. .LONG TERM...Next Week. Building high pressure will be the main story for next week that will begin a process of PWAT increases across the desert Southwest. As the H5 ridge takes shape early in the week, low mid level moisture increases along with it, setting the stage for 850-700 mb flow out of the south. Initially, PoP/QPF is limited in the afternoons Monday and Tuesday, mostly to high terrain of Mohave County and farther east into north- central Arizona. This is largely due to the upper level pattern being in transition, but moisture below 700mb lacking. This could increase the potential for DryT for Mohave county early in the week, and perhaps through Wednesday. As we push into Wednesday and especially Thursday, low level features become much more favorable for moisture advection below 700mb, which is both noted in the 12/18Z GFS/ECMWF. This should be enough to spread PoPs westward and even northward into central Nevada. The NBM population is slowly increasing PoPs and WPC with QPF each afternoon through next week in conjunction with this overall set up and believe that is overall appropriate for now. Would not be surprised to see both PoP and QPF increase further as we enter into the hi-res domain, especially if moisture across Mexico or the Gulf increases more than modeled. While Thursday looks to be the best day, PoPs remain in the forecast heading into the weekend but the aforementioned low level features are not as well defined (at least at this far out). It is possible a weak shortwave to the north could disrupt the H5 ridge, or weaken it. But clusters also indicate a slight possibility this doesn't change the synoptic pattern much at all and similar conditions remain heading into early next week. CPC 8-14 day outlooks continues to trend slightly above average for the CRV and Mohave so perhaps a prolonged period of monsoonal activity is in store. && .AVIATION...For Harry Reid...Expect easterly wind components beginning mid morning and lasting until winds shift to south southwesterly with gusts of 15 to 20 knots this afternoon. Winds will become lighter and more westerly after sunset. A similar pattern is expected Monday, although the shift away from easterly winds may occur later in the day. No operationally significant clouds or weather expected. For the rest of southern Nevada, northwest Arizona and southeast California...Expect south to southwest winds gusting 15 to 25 knots over much of the region this afternoon. Winds will weaken after sunset, except for the typical early evening westerly push at KDAG. Similar winds are expected again Monday. A few thunderstorms will develop near the northern and eastern borders of Mohave County each afternoon. Elsewhere, no operationally significant clouds or weather expected. && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures. && SHORT TERM...Peters LONG TERM...TB3 AVIATION...Morgan 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.
2 heat. Local standard time, as filed.
Four people died in the Las Vegas area of heat-related causes.
One person died in the Spring Mountains 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 | 2022-07-10 | 80 | Female | Outside/Open Areas | Direct |
| Heat, Las Vegas Valley | 2022-07-11 | 72 | Female | Outside/Open Areas | Indirect |
| Heat, Las Vegas Valley | 2022-07-13 | 63 | Male | Permanent Structure | Direct |
| Heat, Las Vegas Valley | 2022-07-10 | 64 | Male | Vehicle/Towed Trailer | Direct |
| Heat, Spring Mountains | 2022-07-13 | 40 | Male | Outside/Open Areas | Direct |
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nevada in 2022Every state in 2022This day in weather historyWarnings in Nevada, July 2022
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: 1049238, 1049240.