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 Aug 10, 11:58 AM PST, 12 hours 2 minutes earlier.
Area Forecast Discussion National Weather Service Las Vegas NV 1258 PM PDT Wed Aug 10 2022 .SYNOPSIS...With moisture in place, monsoon activity is forecast to continue through the week. Scattered thunderstorms will be possible each afternoon, especially in southern Nevada through western Arizona. Flash flooding will be the primary concern with these storms. Cooler temperatures are expected throughout the week. && .SHORT TERM...The Rest of Today and Thursday. Mesoanalysis and short term models through the afternoon continue to highlight an increased risk for thunderstorms with heavy rain and flash flooding for southern Nevada, eastern San Bernardino County, and all of Mohave County. PWATs around 2 SD above normal are noted over the region. In addition, despite morning and early afternoon sunshine that should allow for dry air to mix out dewpoints, many locations still show dewpoints over 60F. Through the rest of the afternoon into the evening, thunderstorms will continue to impact parts of the region. Of note, short term models want to focus thunderstorms over Mohave County along and north of I-40, the high terrain of Clark County potentially impacting areas such as Mt Charleston and traffic on I-40 or US-95 around Primm, Jean, and Searchlight, and western Lincoln County. Thunderstorms so far today have already reported rainfall rates of 2-3inch/hr or more. Further west, isolated thunderstorms with heavy rain are possible but should not be as widespread in all areas. Inyo County is the only area that should remain dry this evening. A few storms may also have strong winds as elevated cores with tall storms dropping quickly and/or wet microbursts. Storms will dissipate early tonight. Expecting all convection to be over by around 06Z tonight, however isolated showers with limited impacts are possible after 06Z. For Thursday morning through the afternoon, models hint at another MCV or piece of energy pivoting through the region, but are unsure where it will develop and move through. This will drive the highest precipitation chances and impacts, so will need to watch this feature closely. HREF 3hr QPF of 1inch PMMs highlight Lincoln, Clark, and Mohave again tomorrow afternoon, which would be the area that is most likely the wave would move through. May need to extend the Flash Flood Watch for parts of the area as PWATs will remain high Thursday so heavy rain and flash flooding will continue to be a threat for where thunderstorms develop. .LONG TERM...Friday through next week. There is no sign of a pattern change in the extended forecast. Ensemble guidance continues to show a dominant 500mb high over the Four Corners/Southern Rockies region. This keeps us under south- southeasterly flow which supplies the monsoon moisture. GFS and ECMWF ensemble means show PWATs at or above 1.25" through next week. Thus, above-normal rain chances and seasonal temperatures are expected to persist through the period. && .AVIATION...For Harry Reid...A moist southeasterly flow will continue to bring abundant cloud cover across southern Nevada. Showers and thunderstorms are expected to develop over the higher terrain around the Las Vegas Valley and potentially move into the valley between 21-00z this evening. Brief heavy rain, gusty outflow winds, and lightning will be possible. Outside of any thunderstorm influences look for south winds around 6-8 kts. Storms are expected to dissipate this evening. For the rest of southern Nevada, northwest Arizona and southeast California...Isolated to scattered thunderstorms are expected through this afternoon generally across eastern San Bernardino, Clark, Lincoln and Mohave Counties. Any storms will likely impact KLAS/KHND/KVGT/KEED/KIFP TAF sites with only slight chances elsewhere. Storm movement today will be towards the north-northwest. Cloud bases 10-12 kft MSL. Main impacts will be heavy rain, gusty outflow winds, and lightning. Storms are expected to dissipate this evening. && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures. && SHORT TERM...Nickerson LONG TERM...Woods AVIATION...Gorelow For more forecast information...see us on our webpage: https://weather.gov/lasvegas or follow us on Facebook and Twitter
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
739 PM PDT WED AUG 10 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0715 PM TSTM WND GST 10 NW MERCURY 36.77N 116.10W
08/10/2022 M60 MPH NYE NV MESONET
60 MPH WIND GUST MEASURED AT ARL SORD SITE
A27AA.
&&
MSPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
839 PM PDT WED AUG 10 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0815 PM TSTM WND GST 16 N MERCURY 36.89N 116.04W
08/10/2022 M61 MPH NYE NV MESONET
61 MPH WIND GUST WAS MEASURED AT ARL SORD
SITE A06AA.
&&
MSThe 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.
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, August 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: 1054378.