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 21, 7:42 PM PST, 4 hours 18 minutes earlier.
Area Forecast Discussion National Weather Service Las Vegas NV 842 PM PDT Sun Aug 21 2022 .SYNOPSIS...Scattered thunderstorms will continue over central and southern Mohave County this evening before clearing overnight. High pressure will move into and over the region, ushering in warmer temperatures along with a decrease in thunderstorm coverage through Tuesday. Moisture and convective activity will increase again in the middle of the week. && .UPDATE...An active thunderstorm afternoon has continued into the evening with a line of strong thunderstorms slicing through Mohave County at 830 PM, extending from Highway 93 near Willow Beach to the eastern Mohave County border near Peach Springs. The line of storms is forecast to continue southward through the evening affecting areas of central and southern Mohave County and the Colorado River Valley including Kingman, Bullhead City, Laughlin, Needles, and Lake Havasu City. Strong winds over 50 mph and dangerous lightning are the primary threats but some of the stronger cells could produce dime to quarter sized hail. For the remainder of the area, quiet conditions are expected overnight. && .PREV DISCUSSION... /issued at 145 PM PDT Sun Aug 21 2022/ .SHORT TERM...through Tuesday. Another round of isolated showers and thunderstorms will be possible again this afternoon and evening. The areas most likely to see these storms are Mohave, Clark, and Lincoln Counties. The latest 850 mb analysis shows a sharp dewpoint gradient extending from the western portions of Clark and Lincoln Counties down across the Mojave Preserve in San Bernardino County. This gradient is expected to slowly shift to the east over the course of the afternoon and evening. The dry air aloft behind this gradient will have the potential to limit convective activity over the western portions of Clark and Lincoln Counties this afternoon and evening. For the storms that do end up developing, the primary hazards will be heavy rain, frequent lightning, and strong gusty winds. Persistent northwesterly flow aloft will continue to push moisture eastward on Monday and Tuesday as an upper-level ridge moves over the area. With the eastward displacement of the deepest moisture to our east, we see PoPs decrease through early next week. While PoPs will decrease, 1" precipitable water values will linger in the southern portions of the forecast area, resulting in chances for isolated afternoon showers and thunderstorms in Mohave County and the higher terrain of Clark and eastern San Bernardino Counties. While the moisture decreases, we will see temperatures gradually increase to near seasonal values by Tuesday. .LONG TERM...Wednesday through Sunday. By Wednesday the ridge will have moved over the Four-Corners Region, resulting more southerly flow aloft. This will allow for deep moisture to return to the region. Long-range models show 1.25"-1.75" PWats moving up the Colorado River Valley into Mohave County, southeastern Clark County and eastern San Bernardino County. The current forecast reflects this increase in moisture with slightly cooler temperatures and more widespread PoPs on Wednesday and Thursday. Forecast uncertainty increases beyond Thursday as we prepare to head into the weekend. Long term guidance shows a potential trough moving through along the US-Canadian border resulting in the flattening and westward displacement of the Four-Corner's ridge. Should this happen it could potentially result in another brief lull in convective activity as the deepest moisture is pushed out of the area. However, since this occurs at the end of the forecast period and there are discrepancies between ensemble members, confidence in the exact details is low. && .AVIATION...For Harry Reid...East-southeast winds 5-8KTS will persist through the afternoon. Isolated thunderstorms developing over the mountains to the north of Las Vegas will likely move across Lake Mead early this evening. Outflow will likely reach the terminal and result in northeast or east winds temporarily gusting to at least to 20KTS 01Z-04Z. Isolated storms in the Mormon Mesa and Peach Springs corridors should dissipate by 06Z. Winds are expected to become light S-SW after 05Z and continue overnight and become light and variable early Monday morning under a mostly clear sky. Isolated storms will still possible over the mountains Monday afternoon, but will not likely create impacts in the terminal area. For the rest of southern Nevada, northwest Arizona and southeast California...Isolated thunderstorms will move toward the southeast over parts of southern Nevada and northwest Arizona this afternoon and evening with the potential for strong outflow winds which may impact IFP and EED in the Colorado River Valley 03Z-06Z this evening. Storms should dissipate after 06Z. Most of southeast California will be free of storms with winds generally less than 12KTS. Winds will be fairly light under mostly clear skies late tonight through Monday morning. Thunderstorms will be more isolated Monday afternoon over southern Nevada and northwest Arizona. && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures. && UPDATE...Salmen DISCUSSION...Stessman AVIATION...Adair 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
844 PM PDT SUN AUG 21 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0827 PM DUST STORM 11 W VALENTINE 35.40N 113.86W
08/21/2022 MOHAVE AZ TRAINED SPOTTER
AT 827 PM MST A TRAINED WEATHER SPOTTER
REPORTED QUARTER TO HALF MILE VISIBILITY
FROM A DUST STORM IN VALLE VISTA ARIZONA.
&&
MSPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
945 PM PDT SUN AUG 21 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0825 PM FLASH FLOOD 9 NE DOLAN SPRINGS 35.70N 114.17W
08/21/2022 MOHAVE AZ COUNTY OFFICIAL
AT 825 PM FLOOD CONTROL WEBCAMS SHOWED WATER
RUNNING OVER PIERCE FERRY ROAD WHERE IT
INTERSECTS ARCHIBALD WASH. COUNTY OFFICIALS
HAVE SINCE CLOSED PIERCE FERRY ROAD FROM
MILE MARKER 13 TO NORTH STOCKTON HILL ROAD
DUE TO FLASH FLOODING.
&&
MSPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1001 PM PDT SUN AUG 21 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0825 PM TSTM WND DMG 3 E WILLOW BEACH 35.87N 114.61W
08/21/2022 MOHAVE AZ DEPT OF HIGHWAYS
ARIZONA DEPARTMENT OF TRANSPORTATION
REPORTED A SEMI TRUCK HAD BEEN BLOWN OVER ON
HIGHWAY 93 BY MILE MARKER 14 IN ARIZONA.
&&
MSPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1032 PM PDT SUN AUG 21 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0955 PM FLASH FLOOD 13 NE DOLAN SPRINGS 35.73N 114.12W
08/21/2022 MOHAVE AZ COUNTY OFFICIAL
MOHAVE COUNTY ROADS REPORTS THAT NORTH
STOCKTON HILL ROAD WAS CLOSED FROM MILE
MARKER 38 TO NORTH PIERCE FERRY ROAD DUE TO
FLOODING.
1000 PM FLASH FLOOD 5 SSE GOLDEN VALLEY 35.16N 114.18W
08/21/2022 MOHAVE AZ COUNTY OFFICIAL
SOUTH AZTEC ROAD CLOSED FROM HIGHWAY 68 TO
WEST SHINARUMP DRIVE DUE TO FLOODING.
1006 PM TSTM WND GST 1 ENE YUCCA 34.88N 114.13W
08/21/2022 M60 MPH MOHAVE AZ MESONET
THE APRSWXNET/CWOP SITE IN YUCCA, AZ GUSTED
TO 60 MPH AT 1013PM. ALSO GUSTED TO 59 MPH
AT 1006PM.
1010 PM FLASH FLOOD 6 ESE KINGMAN 35.16N 113.95W
08/21/2022 MOHAVE AZ COUNTY OFFICIAL
HUALAPAI MOUNTAIN ROAD WAS CLOSED FROM MILE
MARKER 4.5 TO THE RANGER STATION DUE TO
FLOODING.
1020 PM FLASH FLOOD 5 SSW GOLDEN VALLEY 35.16N 114.24W
08/21/2022 MOHAVE AZ COUNTY OFFICIAL
WEST SHINARUMP DRIVE CLOSED FROM SOUTH AZTEC
ROAD TO SOUTH COLORADO ROAD DUE TO WEATHER.
&&
MWPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1158 PM PDT SUN AUG 21 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1055 PM FLASH FLOOD 10 ENE OATMAN 35.07N 114.22W
08/21/2022 MOHAVE AZ COUNTY OFFICIAL
WEST OATMAN HIGHWAY CLOSED FROM MILE MARK 40
TO EAST SILVER CREEK ROAD DUE TO FLOODING.
1135 PM FLASH FLOOD 3 N GOLDEN VALLEY 35.27N 114.23W
08/21/2022 MOHAVE AZ COUNTY OFFICIAL
NORTH LEGEND RANCH ROAD CLOSED FROM WEST
BURRO DRIVE TO HIGHWAY 93 DUE TO FLOODING.
1150 PM FLASH FLOOD 4 WNW GOLDEN VALLEY 35.26N 114.29W
08/21/2022 MOHAVE AZ COUNTY OFFICIAL
NORTH ESTRELLA ROAD CLOSED FROM WEST CHINO
DRIVE TO WEST ZUNI DRIVE DUE TO FLOODING.
&&
MWThe 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 | 2022-08-22 | 75 | Female | Outside/Open Areas | Indirect |
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: 1055226.