Two people died of heat related causes in Las Vegas.
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.
Two people died of heat related causes in Las Vegas.
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 11, 6:20 PM PST, 5 hours 40 minutes earlier.
Area Forecast Discussion National Weather Service Las Vegas NV 720 PM PDT Tue Jul 11 2017 .SYNOPSIS...Monsoonal moisture will slowly decrease through midweek, with dry southwest flow reducing thunderstorm chances across the region. A slight warming trend is possible for the end of the week before another surge of monsoonal moisture pushes back over the area, bringing with it a slight cool down and an upswing in thunderstorm chances late in the weekend into next week. && .MESOSCALE SUMMARY...through 11 PM PDT. The main focus for lingering showers and thunderstorms the rest of the evening will be Esmeralda, central Nye and Lincoln counties. Storms over northeast Clark and northern Mohave counties should end shortly after sunset. The circulation centered in Lincoln County a little northeast of Caliente will continue to provide dynamic support for convection especially on its western edge as a trailing deformation zone lies across central Nye County. Sufficient instability will exist for thunderstorms another hour or two over central Nye County, but then they should largely diminish to showers for the most part. Outflow boundaries may push into northern Clark County but the surface analyses and satellite loops indicate it should be too stable for new thunderstorm initiation. The most recent HRRR also depicts most convection remaining over south central Nevada. && .SHORT TERM....tonight through Thursday morning. The circulation over Lincoln county will likely keep at least isolated showers, if not a few thunderstorms, going through the early hours Wednesday morning. Elsewhere, a drying trend still appears on track over the next 36 hours which will lead to less coverage of showers and thunderstorms Wednesday into Thursday. This is due to the mid level high becoming centered near Yuma with the clockwise flow pulling increasingly dry air from the southwest. The exception will be Lincoln and northern Mohave counties where some sufficient residual moisture and instability will remain for isolated storms Wednesday afternoon and early evening. Temperatures Little change in temperatures can be expected with readings near or slightly above normal. .LONG TERM...Thursday through Tuesday. Slight drying and stabilization of the air mass that commences during the short term over eastern California and southern Nevada will carry over into Thursday/Friday. The exception will be northwest Arizona where models indicate enough moisture and instability around to support isolated thunderstorms at least over the eastern half of Mohave County. Over the weekend, mid level high center which had been suppresses to our southeast is progged to shift northwest over eastern Nevada/Utah. Inverted trough clearly seen on water vapor currently over southern Texas/northeast Mexico progged to slowly drift west into northwest Mexico providing the dynamics for likely large MCS development over Sonora. Deeper monsoon moisture is expected by arrive Sunday but E-W orientation of ridge axis looks to block this moisture from sweeping that far north into southern Nevada. Its not until Monday/Tuesday that models shift the 1.5" PW line north into southern Nevada with H85 dewpoints in excess of 12-18 deg C. Heavy rain and Flash Flooding threat increases with those type of moisture profiles. .AVIATION...For McCarran...Light and variable winds will persist before a southwest wind pushes in around 21z-22z. Southwest winds will be around 10-13 kts with gusts up to 20 kts through the afternoon and early evening. Today's late morning showers and cloud cover helped to slightly stabilize the valley, however, thunderstorm activity can not be ruled out through the rest of the afternoon and evening. With thunderstorm activity expected south and north of KLAS, there remains slight chances of gusty outflow winds -- causing sudden wind shifts -- to reach KLAS through the rest of afternoon and evening. Storms should begin to wane after 00z. Southwest to west wind around 12-14 kts will stick around through most of the night before light and variable conditions set up early tomorrow morning. Typical diurnal east wind expected to begin around 16z-17z and end around 21z-22z as a southwest winds pushes into the valley. Thunderstorm activity will be limited to higher terrain Wednesday. Few to scattered clouds expected through the evening with clearing conditions expected overnight. For the rest of southern Nevada, northwest Arizona and southeast California...South to southwest winds around 10-20 kts are expected to develop this afternoon and continue into the evening across the Mojave Desert and southern Great Basin sites. There will be a lull in the wind overnight before setting up again tomorrow in the late morning/early afternoon. Although, early afternoon winds tomorrow will favor more of a southerly wind component. A few areas of thunderstorms are expected this afternoon and evening, with the main focus across northern Clark, northern Mohave, Southern Lincoln Counties, as well as Inyo and Nye Counties. Thunderstorms may produce strong wind gust and sudden changes in wind direction. Areas of thunderstorms should begin to see a decrease in activity later this evening. Skies will be mostly scattered to broken this evening, however VFR conditions are expected. && .FIRE WEATHER...Monsoonal moisture will slowly decrease through midweek, with dry southwest flow reducing humidity values and diminishing thunderstorm chances across the region. Another surge of monsoonal moisture pushes back over the area brining an upswing in thunderstorm chances late in the weekend into next week. && .HYDROLOGY....Not at the magnitude of runoff in late June, but creeks, streams and rivers in northern Inyo County continue to run higher than normal and fast from snow melt. Some road closures continue in the area. Bishop Creek Bypass and Big Pine Creek Bypass continue to be utilized to minimize flows through Bishop and Big Pine. Over the past week, streamflows on Independence Creek have stabilized with peak flows comparable to 1969 and 1983. Isolated thunderstorms over the mountains may aid snowmelt runoff and keep some drainages elevated over the coming days as well. Remember, never drive through flooded roadways or around barricades. Also, pastureland or farmland adjacent to creeks, streams or rivers could experience areas of standing water. && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures. && MESOSCALE SUMMARY...Adair SHORT TERM/FIRE WEATHER...Adair LONG TERM....Pierce AVIATION...Boothe For more forecast information...see us on our webpage: http://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.
Two people died of heat related causes in Las Vegas.
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 | 2017-07-12 | 72 | Male | Outside/Open Areas | Direct |
| Heat, Las Vegas Valley | 2017-07-13 | 59 | Male | Outside/Open Areas | Direct |
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nevada in 2017Every state in 2017This day in weather historyWarnings in Nevada, July 2017
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: 713485.