Excessive Heat Warning criteria were reached on two straight days.
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.
Excessive Heat Warning criteria were reached on two straight days.
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 28, 2:29 PM PST, 3 hours 31 minutes earlier.
Area Forecast Discussion National Weather Service Las Vegas NV 329 PM PDT Mon Aug 28 2023 .SYNOPSIS...Sunny, dry, and hot conditions expected through Wednesday. Excessive Heat Warning in effect for the lower elevations of the southern Mojave Desert including the Colorado River Valley through Tuesday. Moisture returns to the region mid-to-late week, returning precipitation chances through the weekend. && .DISCUSSION...through next Monday. Temperatures in the southern and eastern portions of our forecast area will continue to run 5-10 degrees above normal through tomorrow afternoon. As such, an Excessive Heat Warning remains in effect for the Colorado River Valley, southern Mohave County, and the Cadiz Basin through 8:00 pm PDT/MST tomorrow evening. Temperatures for zones not in the Excessive Heat Warning will hover right around normal for the end of August. We will see things cool down slightly on Wednesday as the monsoon high shifts off to our east. As the monsoon high shifts to our east, it will open the door for moisture to begin pushing into the southern and eastern portions of our forecast area. Meanwhile, a trough will be located across the Pacific Northwestern states, placing us roughly in between the high and low pressure centers, further helping to advect moisture northward. Due to these features, increasing thunderstorm activity is likely across San Bernardino, Clark, Lincoln, and Mohave counties starting Thursday, peaking Friday, and then lingering over the weekend. This trough is projected to dig south along the coast on Thursday and Friday, resulting in our southerly flow becoming more southwesterly. This dry southwesterly flow will limit precipitation chances in Inyo, Esmeralda, and central Nye counties. The cooling trend that began Wednesday will continue through the end of the week as this trough digs along the coast. In addition to cooler temperatures, we will also see southwesterly winds pick up across the region. Currently, long term guidance suggests that these winds will be sub-advisory in magnitude. Beyond Friday, chances for isolated showers and thunderstorms will linger into the weekend for the eastern most portions of our forecast area. Cooler than normal temperatures are expected to continue through the weekend as the trough churns off the coast of California on Saturday and Sunday. Guidance suggests that this trough will move through the area early next week. However, there remains much uncertainty as to when the trough will move through and how strong it will be when it does. && .AVIATION...For Harry Reid...Southeast components generally around 6 knots or less will continue through the afternoon followed by west- southwest components 5-8 knots this evening and overnight. South- southwest winds 10-12 gusting to 20 knots will develop Tuesday afternoon into Tuesday evening. Clear skies will continue. For the rest of southern Nevada, northwest Arizona and southeast California...Winds generally less than 10 knots can be expected tonight through Tuesday morning followed by increasing south- southwest winds 10-15 knots gusting around 20 knots Tuesday afternoon. Clear skies will continue. && .SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report any significant weather or impacts according to standard operating procedures. && DISCUSSION...Stessman/Outler AVIATION...Adair For more forecast information...see us on our webpage: https://weather.gov/lasvegas or follow us on Facebook and Twitter
1 excessive heat. Local standard time, as filed.
Excessive Heat Warning criteria were reached on two straight days.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nevada in 2023Every state in 2023This day in weather historyWarnings in Nevada, August 2023
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: 1136428.