Two people died while hiking at Amboy Crater.
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 while hiking at Amboy Crater.
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 12, 1:03 PM PST, 32 minutes earlier.
Area Forecast Discussion National Weather Service Las Vegas NV 203 PM PDT Sat Aug 12 2017 .SYNOPSIS...Scattered thunderstorms will continue through the evening across Lincoln and Mohave Counties. Drier and more stable southwest flow aloft will keep storm chances confined to northwest Arizona Sunday then dry and a little cooler conditions can be expected during the coming week as a low pressure system moves over the western states.&& .SHORT TERM...Through Sunday Night... Scattered thunderstorms will continue this afternoon and diminish toward the evening hours as drier air continues to move in from the west. Isolated flooding and severe thunderstorms are possible. The main focus for thunderstorms on Sunday will be over the higher terrain of Mohave County. High pressure associated with the monsoon will is being pushed off to the east, allowing the dry air to move in from the west. A broad trough of low pressure in the north Pacific off the WA/OR coast will move southward down the coast over the next couple days, keeping a dry southwest flow over the area and bringing cooler temperatures. && .LONG TERM...Monday through Friday... Drier southwest flow will be the main story for the long term. Moisture will shift eastward as a mid latitude trough digs across the northwest Monday. Though low level moisture will likely stick around across Mohave County Monday keeping some slight chances for storms mostly along higher terrain. Drier air will dominant through most of the the week with no mentionable POPs other than a slight chance of storms along the Sierra Mountains Friday afternoon. Breezy to gusty winds can be expected for much of Monday as the upper trough digs into our area. Strongest winds will likely be across western San Bernardino County in the evening with speeds in the mid to upper 20s gusting to around 35-40 mph. Temperatures will slightly trend upwards hovering around normal through the week with a slight lull on Tuesday in response to the upper trough passage. Partly cloudy to mostly clear skies through the week. && .FIRE WEATHER...A drying and cooling trend can be expected over the next few days. Wind will increase across San Bernardino County for Monday and Tuesday, but wind should remain under red flag criteria. Thunderstorm chances remain for Sunday across Mohave County. && .AVIATION...For McCarran...Thunderstorms have developed in the mountains once again this afternoon and are sending outflow into the Valley. While no thunder is expected at the terminal this evening, outflow boundaries from nearby storms will be possible through the late afternoon. Aside from thunderstorm activity, a breezy south wind is expected before a shift to a gusty southwest wind between 22z-00z, with gusts becoming infrequent after sunset. Tomorrow should be limited in thunderstorm activity, with a southwest wind setting up again during the afternoon. Skies should be mostly clear with CIGs above 11kft. For the rest of southern Nevada, northwest Arizona and southeast California...Isolated thunderstorms expected through the early evening mainly across Lincoln and Mohave Counties with convective turbulence and gusty surface winds likely. Further west dry conditions and breezy south to southwest winds between 10-20 knots expected through the afternoon/evening. Tonight, typical diurnal winds expected for most sites. Thunderstorms will be likely again tomorrow, primarily across Mohave County. Elsewhere, dry conditions are expected with breezy southwest/south will develop in the afternoon. && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures. && SHORT TERM/FIRE WEATHER...Berc LONG TERM.................Kryston 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.
A couple died after getting lost and separated during a hike near Amboy Crater.
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, Eastern Mojave Desert | 2017-08-12 | 58 | Female | Outside/Open Areas | Direct |
| Heat, Eastern Mojave Desert | 2017-08-12 | 60 | Male | Outside/Open Areas | Direct |
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2017Every state in 2017This day in weather historyWarnings in California, August 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: 717843.