Four ASOS sites recorded their hottest September temperatures ever. They were Pocatello, Idaho Falls, Burley, and Challis.
Every event with a place to put it; 4 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 PIH wrote it up.
Four ASOS sites recorded their hottest September temperatures ever. They were Pocatello, Idaho Falls, Burley, and Challis. For the entire month the number of record high temperatures recorded were: Pocatello 5, Idaho Falls 6, Burley 3, Challis 5, and Stanley 2.
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 Pocatello, ID wrote its last area forecast discussion before the first event at Aug 31, 12:58 PM MST, 11 hours 3 minutes earlier.
Area Forecast Discussion National Weather Service Pocatello ID 158 PM MDT Wed Aug 31 2022 .SHORT TERM...Tonight through Thursday night. A ridge of high pressure is centered over the central Great Basin while a weak shortwave trough is moving northward over the top of this ridge. This shortwave may trigger a few isolated virga showers across the central mountains this afternoon. Probably not significant enough to mention in the forecast. Although a rogue wind gust of 30-35 mph is possible. Otherwise hot temperatures have arrived and will persist for the next several days with heat advisories in effect through the weekend. As the trough passes over the top of the ridge on Thursday, we will see some breezy conditions develop with wind gusts of 20-25 mph possible across most of the area. With the trough beating down the ridge slightly, we could see temperatures receded by a couple degrees, but not really enough to justify dropping the heat advisory just to end up reissuing by the weekend (more on this in the extended discussion). Also potentially noteworthy, is that we may see some smoke and haze work into east Idaho from fires in the middle part of the state Thursday afternoon as our winds shift to the west northwest. 13 .LONG TERM...(Friday - next Wednesday)... There remains very high confidence in near-record to record heat across all of eastern Idaho throughout the holiday weekend and into the first half of next week. At the moment, heat Advisories continue through Sunday and will certainly need to get extended into Labor Day and likely into Tue and maybe Wednesday eventually as well. Saturday through Monday looks to be the peak period for afternoon heating with increasing confidence in temperatures nearing or surpassing 100 from Pocatello south and west into the Magic Valley. GFS/ECMWF ensemble means are sitting around 99 to 100 at KPIH for each day during the aforementioned time period. As one would expect with this type of weather pattern, chances for PoPs during any day appear slim to none and winds should not be much of an issue either, generally 10-15 mph on any given day. The main forecast message remains is that it will be unusually hot for early September across eastern Idaho and residents and visitors to the area are urged to practice heat safety. Just beyond the current forecast period, global models are hinting at perhaps a major pattern shift with a strong low/trough coming out of the Gulf of Alaska or Western Canada. Still plenty of time for this to change, but if it pans out, this would likely result in an abrupt end to the heat followed by much cooler than normal temps. But considering this is a good 8-9 days out, a lot can still change. Nevertheless, it is something to watch for those who are rooting for an end to the summer heat. McKaughan && .AVIATION...VFR to prevail with light winds and mostly sunny skies expected through the forecast period. Aside from some occasional high clouds streaking across the region with winds 10 kts or less. There is a very isolated chance for a stray shower near KBYI and KSUN but given the dry air aloft, it likely would not translate to precip at the surface but could create for some turbulence in the skies near the airfield. Winds will be light overnight but will increase a bit tomorrow, mainly in the afternoon, to around 15 kts. McKaughan && .FIRE WEATHER...An isolated virga shower is possible across portions of the Salmon-Challis this afternoon. Otherwise, hot and dry weather will continue through the next several days. Noncritical wind gusts of 20-25 mph is possible. Minimum humidities in the single digits to mid teens is likely over the next several days as well as Haines values of 5 and 6. Another system will work over the ridge on Saturday which will produce more gusty winds, possibly reaching critical levels. 13 && .PIH WATCHES/WARNINGS/ADVISORIES... Heat Advisory until midnight MDT Sunday night for IDZ051>059-075. &&
The national radar mosaic for the moment the first event began.
4 excessive heat. Local standard time, as filed.
The Pocatello ASOS at the airport recorded the hottest September temperatures ever recorded with 102 degrees on the 3rd. Two other days reached 100 degrees and 5 record highs were recorded during the month.
The ASOS at the Idaho Falls regional airport recorded it's hottest September temperatures at 100 degrees on the 3rd. It was the first ever 100 degree September temperatures recorded in Idaho Falls. Six record high temperatures were recorded during the month.
The ASOS at the Burley municipal airport recorded it's hottest September ever with 101 degrees on September 6th which was the 1st ever 100 degree or hotter temperatures ever recorded in the month. Three record high temperatures were recorded for the month.
The ASOS at Challis recorded the hottest September ever with 99 degrees recorded on September 3rd. Five record high temperatures were recorded during the month.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2022Every state in 2022This day in weather historyWarnings in Idaho, September 2022
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 2026-10-01. Each event’s entry at NCEI: 1057210, 1057211, 1057212, 1057213.