Isolated thunderstorms moved west across southeast Arizona during the afternoon and evening. Localized flash flooding occurred in the Tucson Metro area.
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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 TWC wrote it up.
Isolated thunderstorms moved west across southeast Arizona during the afternoon and evening. Localized flash flooding occurred in the Tucson Metro area.
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 Tucson, AZ wrote its last area forecast discussion before the first event at Aug 24, 2:28 PM MST, 4 hours 32 minutes earlier.
Area Forecast Discussion National Weather Service Tucson AZ 228 PM MST Wed Aug 24 2022 .SYNOPSIS... Scattered afternoon and evening showers and thunderstorms will continue through the end of the week then a gradual drying trend develops Sunday into the middle of next week resulting in less storm coverage each day. Near or slightly below normal temperatures will continue through the weekend with a bit of a warm up expected early next week. && .DISCUSSION...Today through Tuesday. Showers began to develop late this morning and continue to develop early into this afternoon. They have struggled to even produce lightning thus far today with the first strike not occuring until early this afternoon despite showers going for a couple of hours. Santa Cruz and Pima counties look to have better chances for a couple of stronger storms with relatively higher instability in this area. Additional heavy rain into the Gila River basin doesn't look likely today or tomorrow, hopefully allowing the river levels to continue to recede. On Thursday the focus for convection will be south of Tucson as well as over the White Mtns with flow remaining easterly. The overall pattern will be dictated by the ridge which remains to the north near the Four Corners today before shifting southward on Thursday across Arizona into Baja/Sonora by Friday. Over the weekend, a mid level trough will move into the Western US, weakening the ridge before it reconsolidates over the Desert Southwest early to mid next week. The switch to westerly flow will allow a gradual drying trend which in turn will lead to a lowering rain chances each day. Enough moisture will remain in place for scattered showers and storms to develop Friday through the weekend, favoring the higher elevations with rain chances dropping to 15-25 percent Monday through the end of the period. Near to below normal temps are expected through the weekend before warming back up a few degrees early next week as high pressure settles back over the area. && .AVIATION...Valid through 25/00z. Isolated to scattered SHRA/TSRA will be possible through 25/01z-25/03z. FEW-SCT clouds at 6k-8k ft AGL will continue through this evening with SCT-BKN clouds at or above 10k ft AGL through at least 25/12z. Direct impacts to the terminals from SHRA/TSRA could briefly lower CIGS to 3k-5k ft AGL and lower visibilities in heavy downpours. Easterly winds will become light and diurnal this evening. Another day of scattered SHRA/TSRA is forecast for Thursday. Aviation discussion not updated for TAF amendments. && .FIRE WEATHER... Daily rounds of scattered showers and thunderstorms will continue through this upcoming weekend with a downward trend after Saturday. Primary threats will be strong winds, lightning, and flash flooding. Outside of thunderstorm activity, wind trends will remain light and follow typical diurnal trends. && .HYDROLOGY... The Gila River will continue to see a flood wave move slowly downstream of Safford over the next 48 hours and then remain elevated through into the weekend. Flood advisories are in effect as a result of this flow. && .TWC WATCHES/WARNINGS/ADVISORIES... None. && Guillet Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
The Tucson radar (KEMX), 48 km away, was scanning. The volume nearest the first event began at 01:58 UTC.
2 flash flood. Local standard time, as filed.
Heavy rain of more than 1 in 1 hour caused flash flooding and closures of residential streets south of Orange Grove Road between La Cholla and La Canada. Additionally, a man was rescued after becoming trapped under a bridge by floodwaters near Blacklidge and Walnut.
Heavy rain of 1-1.5 in 90 minutes caused flash flooding in Saguaro National Park and damage to Bajada Loop Rd.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2022Every state in 2022This day in weather historyWarnings in Arizona, August 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 2026-09-24. Each event’s entry at NCEI: 1054922, 1054923.