Five 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.
Five 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 Jul 19, 10:25 PM PST, 1 hour 35 minutes earlier.
Area Forecast Discussion National Weather Service Las Vegas NV 1125 PM PDT Thu Jul 19 2018 .SYNOPSIS...Moist and unstable air will remain over the region through the end of the week providing fuel for afternoon and evening thunderstorms...especially over the mountains. Next week, a heatwave will be building with very hot temperatures expected and lowering thunderstorm chances. && .UPDATE...Strong thunderstorms over southern Lincoln and northern Clark have generally been diminishing over the past hour, but new storms have been firing up across portions of Death Valley NP where heavy rain will be possible through 2 AM. Updated grids to keep showers and thunderstorms across mainly southern Lincoln, northern Clark, southern Nye, and Inyo Counties for the overnight hours, but most of the activity is expected to gradually diminish overnight. Gusty outflow winds are likely to occur overnight down the Colorado River where gusts between 30-40 mph will be possible through 2 AM. && .PREV DISCUSSION... 242 PM PDT Thu Jul 19 2018 .SHORT TERM...Tonight through Saturday. Radar returns as of 2 PM show isolated to scattered deep, moist convection north of Interstate 15. Most storms have developed over terrain and remained anchored. Daytime heating combined with differential heating circulations due to anvil shadowing have allowed strong storms to develop over Nye and Lincoln Counties. HRRR is indicating that storms will develop further eastward into Lincoln County late this afternoon then transition to outflow-dominant and move southwestward toward Clark County this evening. There has decent run-to-run consistency, so PoPs were increased slightly for Las Vegas and northern Clark County. Without a dynamic influence, most convection should wane after sunset, the exception would be convection maintained along outflow. As far as synoptic evolution goes, ridging will continue to move eastward and eventually settle across the Southern Plains by Saturday. As it moves east, southerly flow will increase along the western periphery of the ridge allowing slightly drier air to push northward into the southern Great Basin. This will lead to lowering rain/thunderstorm chances across the forecast area. Rain chances will be limited to higher terrain (Spring and Sierra Mtns.) and Mohave County through Saturday where the best instability, although only moderate, will exist. Temperatures will remain at or just above normal through Saturday. .LONG TERM...Sunday through Thursday. High pressure centered over New Mexico/Texas over the weekend will gradually propagate west early next week. As this happens, temperatures will be on the increase each day. Las Vegas may see 110 as early as Monday, but the more excessive heat will arrive Tuesday and Wednesday as readings will be about 8-10 degrees above normal. This will put places like Las Vegas in the 110-114 degree range, 115- 120 down the Colorado River, and 120-125 in Death Valley. With these readings and little relief expected overnight an Excessive Heat Watch has been issued for much of southern Nevada, southeast California, and northwest Arizona for Tuesday and Wednesday. Moisture is also expected to be rather limited with any thunderstorm chances mainly confined to the higher terrain of central Nevada and the Sierra with only slight chances over the higher terrain of southern Nevada and northwest Arizona Sunday through Thursday. && .AVIATION...For McCarran...Outflow winds from distant thunderstorms could still influence the terminal area this evening, but confidence is low in any direct impacts. Clouds will diminish after sunset. Similar unstable conditions are expected Friday, but confidence is low in a thunderstorm developing within the terminal area. Cloud bases at or above 10k feet. For the rest of southern Nevada, northwest Arizona and southeast California...Scattered to isolated thunderstorms, mainly over the higher terrain across the southern Great Basin and eastern Mojave Desert. Storms will wane this evening. Convection may persist later into the evening across Lincoln, northern Clark, and southern Mohave Counties along outflow boundaries. Outside of thunderstorm influences, southerly winds with speeds of 10-15 knots and gusts to 20 knots should prevail. CIGs at or above 10k feet; CIGs may drop to 5-7 k feet with convection that develops near a terminal. Similar conditions expected Friday, with slightly less thunderstorm coverage. && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures. && SHORT TERM/AVIATION...Boothe LONG TERM.............Gorelow For more forecast information...see us on our webpage: http://weather.gov/lasvegas or follow us on Facebook and Twitter
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1144 PM PDT THU JUL 19 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1045 PM TSTM WND DMG 1 SW SAM BOYD STADIUM 36.08N 115.03W
07/19/2018 CLARK NV PUBLIC
TWITTER POST REPORTED DOWNED POWER LINES ON
BOULDER HWY BETWEEN E RUSSELL RD AND SUNSET
RD.
1034 PM FLASH FLOOD 3 NE LAS VEGAS BAY 36.15N 114.83W
07/19/2018 CLARK NV PARK/FOREST SRVC
LAKE MEAD NPS REPORTED THAT NORTHSHORE ROAD
WAS CLOSED DUE TO FLOODING.
1024 PM TSTM WND DMG 3 S NORTH LAS VEGAS AIR 36.17N 115.21W
07/19/2018 CLARK NV PUBLIC
POST ON TWITTER SHOWS A LARGE DEAD TREE
UPROOTED IN A NEIGHBORHOOD NEAR ALTA DRIVE
AND SOUTH DECATUR BLVD.
0927 PM TSTM WND GST 3 SE THE STRIP 36.08N 115.14W
07/19/2018 M58 MPH CLARK NV ASOS
MCCARRAN ASOS RECORDED 58 MPH WIND GUSTS.
0913 PM TSTM WND GST 7 SSE EAGLE VALLEY RESE 37.92N 114.17W
07/19/2018 M72 MPH LINCOLN NV MESONET
IMMIGRATION WASH RAWS REPORTED WIND GUSTS OF
72MPH. TIME ESTIMATED FROM RADAR.
0904 PM TSTM WND DMG 4 NNE NELLIS AFB 36.28N 115.01W
07/19/2018 CLARK NV TRAINED SPOTTER
TRAINED SPOTTER REPORTED 2 TENTED TRACTOR
TRAILERS PUSHED ACROSS THE PARKING LOT.
DEBRIS AND TRASH CANS WERE TOSSED FROM THE
WIND.
0858 PM TSTM WND GST 2 ENE NELLIS AFB 36.25N 115.00W
07/19/2018 E53 MPH CLARK NV ASOS
NELLIS AIRFORCE BASE ASOS RECORDED A WIND
GUST OF 53 MPH.
0858 PM TSTM WND GST 1 N NELLIS AFB 36.25N 115.03W
07/19/2018 M63 MPH CLARK NV MESONET
CCRFCD NLNN2 NELLIS AFB NORTH RECORDED 41MPH
SUSTAINED WINDS AND 63MPH GUSTS.
0848 PM HIGH SUST WINDS 1 NE APEX 36.34N 114.92W
07/19/2018 M51 MPH CLARK NV MESONET
CCRFCD APXN2 APEX AT I15 RECORDED 51 MPH
SUSTAINED WINDS.
0746 PM FLASH FLOOD 2 NNW PANACA 37.82N 114.41W
07/19/2018 LINCOLN NV EMERGENCY MNGR
LINCOLN COUNTY DISPATCH REPORTED SIGNIFICANT
FLOODING AT CATHEDRAL GORGE STATE PARK.
GUARDRAIL WAS TAKEN OUT BY FLOOD WATER.
CAMPGROUND IS COMPLETELY INUNDATED WITH
WATER.
0725 PM TSTM WND GST 27 SSE LITTLEFIELD 36.51N 113.82W
07/19/2018 M62 MPH MOHAVE AZ MESONET
OLAF KNOLLS RAWS RECORDED 62MPH WIND GUSTS.
TIME ESTIMATED FROM RADAR.
0722 PM DUST STORM DOLAN SPRINGS 35.59N 114.27W
07/19/2018 MOHAVE AZ EMERGENCY MNGR
MOHAVE COUNTY DISPATCH REPORTED A DUST STORM
IN DOLAN SPRINGS.
0722 PM DUST STORM 7 ENE DOLAN SPRINGS 35.64N 114.17W
07/19/2018 MOHAVE AZ TRAINED SPOTTER
DUST STORM SEEN BY A TRAINED SPOTTER AT HOME
WITH VISIBILITY UNDER AN EIGHTH OF A MILE.
0716 PM TSTM WND GST 12 SW ELGIN 37.25N 114.71W
07/19/2018 M67 MPH LINCOLN NV MESONET
KANE SPRINGS RAWS RECORDED A WIND GUST OF 67
MPH. TIME IS ESTIMATED BY RADAR.
0636 PM FLASH FLOOD 5 NNW PANACA 37.86N 114.42W
07/19/2018 LINCOLN NV EMERGENCY MNGR
LINCOLN COUNTY EMERGENCY MANAGER REPORTED
FLASH FLOODING IN THE PIOCHE AND PANACA
AREAS. US93 WAS BEGINNING TO WASH OUT NEAR
MILE MARKER 113.
0630 PM DUST STORM 18 NW VALENTINE 35.56N 113.91W
07/19/2018 MOHAVE AZ PUBLIC
DUST STORM SEEN ON HUALAPAI VALLEY
OBSERVATORY WEBCAMS BEGINNING AT 630PM AND
LASTING UNTIL AROUND 800PM.
0530 PM FLASH FLOOD 5 NNW PANACA 37.86N 114.42W
07/19/2018 LINCOLN NV EMERGENCY MNGR
LINCOLN COUNTY DISPATCH REPORTED A ROAD
CLOSURE ON SR320 AT MILE MAKER 1 DUE TO
FLOODING. TIME ESTIMATED FROM RADAR.
&&The national radar mosaic for the moment the first event began.
1 heat. Local standard time, as filed.
Five 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 | 2018-07-20 | 35 | Male | Outside/Open Areas | Direct |
| Heat, Las Vegas Valley | 2018-07-20 | 50 | Male | Outside/Open Areas | Direct |
| Heat, Las Vegas Valley | 2018-07-21 | 53 | Male | Outside/Open Areas | Direct |
| Heat, Las Vegas Valley | 2018-07-22 | 63 | Male | Outside/Open Areas | Indirect |
| Heat, Las Vegas Valley | 2018-07-23 | 75 | Male | Permanent Home | 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, July 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: 773536.