A suspected dust devil caused damage in Las Vegas.
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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.
A suspected dust devil caused damage 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 Sep 22, 1:01 PM PST, 32 minutes earlier.
Area Forecast Discussion National Weather Service Las Vegas NV 201 PM PDT Sat Sep 22 2018 .SYNOPSIS...Afternoon breezes will continue through rest of the weekend and are expected to taper off by Monday. Otherwise, Dry conditions will prevail through the middle of the upcoming week, and temperatures will remain several degrees above normal. && .SHORT TERM...this evening through Monday. Current visible imagery shows a cumulus field mainly across Mohave County and portion of eastern San Bernardino County. Shallow moisture and continued insolation will allow these areas of flat cumulus to persist into the evening. Elsewhere, skies are mostly clear. Sunday, flat cumulus will be more widespread as shallow meager moisture spreads slightly to the west. By Monday, dry westerly flow aloft will push the moisture eastward and keep skies clear for the entire area. Just off the Pacific Northwest coast, water vapor imagery shows mid level trough digging southward toward California. This trough will have some influence on the area as it moves inland and will result in breezy winds this afternoon and evening and again on Sunday. Winds are expected to remain below Advisory and Red Flag criteria. After the trough axis moves east Nevada, surface gradients will relax and winds will become fairly light. Even with height falls across the area, temperatures will stay a few degrees above through the rest of the weekend due to deeper mixing. Very slight cool down is expected Monday as breeziness subsides. .LONG TERM...Tuesday through Friday. The long term period remains dry with temps running 5-10 degrees above seasonal norms. Large- scale troughing remains situated to our east over the central U.S. on Tuesday with prevailing north to northwesterly flow over the area. Weak ridging will build in for Wednesday and Thursday as a blocking pattern sets up off of the West Coast. On Friday, a secondary trough begins to dig southward over the Pacific Northwest which will cause winds to become breezy Friday afternoon as the local pressure gradient becomes tighter. && .AVIATION...For McCarran....Southwest winds with gusts up to 25 knots will continue through the early evening before gusts subside. Overnight southwest drainage becoming light variable by sunrise Sunday. By mid morning Sunday, a light east wind should develop then shift to the southwest around noon. Southwest winds will be similar to those experienced Saturday. No operationally significant cloud cover expected. For the rest of southern Nevada, northwest Arizona and southeast California....Southerly winds will continue at most sites through the evening. Overnight winds are expected decrease and follow diurnal trends. Similar wind trends are expected Sunday. VFR conditions expected through the period. && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures. && SHORT TERM/AVIATION...Boothe LONG TERM....Guillet 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 dust devil. Local standard time, as filed.
A suspected dust devil ripped an awning off a home and threw a piece of it into power lines, knocking out power to about 30,000 customers.
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, September 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: 779383.