Scattered thunderstorms moved slowly west across southeast Arizona during the afternoon and evening. Storms produced pockets of heavy rain with flash flooding observed in parts of 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.
Scattered thunderstorms moved slowly west across southeast Arizona during the afternoon and evening. Storms produced pockets of heavy rain with flash flooding observed in parts of 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 Jul 26, 2:03 PM MST, 2 hours 27 minutes earlier.
Area Forecast Discussion National Weather Service Tucson AZ 203 PM MST Tue Jul 26 2022 .SYNOPSIS...Abundant moisture associated with a favorable monsoon flow pattern will allow for numerous showers and thunderstorms to develop the next few days which could result in local flooding and flash flooding across the area. Cooler than average high temperatures will also be a result of this pattern. && .DISCUSSION...Plenty of convection around southern Arizona today and it got an early start over some of the higher terrain around 9:30 am. Plenty of instability and moisture with PWs of 1.7" over Tucson, a bit more west, a bit less east. Upper level diffluence noted over much of southeast AZ associated with inverted trough nearby that is giving the storms a boost. The main threat for the storms is heavy rainfall leading to potential flooding given the PW level and the slow movement of the storms. This is even more of a threat if one of the storms moves over an area that already received heavy rainfall recently. This activity will continue well into the evening hours and will be slow to taper off. Wednesday looks similar in many ways with plenty of moisture and an assist from the inverted trough likely for much of the area. Given plenty of sunshine it should end up being an active day as well. With that in mind and in coordination with neighboring offices I have extended the Flood Watch through Wednesday night. Thursday onward the convective flood threat will begin diminishing, more likely across eastern portions of the area as the inverted trough ever so slowly drifts west. We may need to extend the watch one more day for parts of the area but that is unclear at this time as to what the areal extent could be if needed. That decision will wait for tomorrow. We will eventually and gradually transition to a more typical monsoon pattern which will still be fairly active given the point we are at in the monsoon, just not as active as we are now and with a reduced flood threat. && .AVIATION...Valid through 28/00Z. Scattered TSRA with isolated +TSRA likely into the evening hours then tapering off after 17/05Z. Storms redeveloping again after 27/18Z. Lower cigs between 4-7k ft AGL can be expected around precipitation, including gusty winds in excess of 40 kts. Otherwise, cloud bases range 8-12k ft AGL with diurnal sfc winds generally less than 12 kts. Aviation discussion not updated for TAF amendments. && .FIRE WEATHER...Deeper moisture in place will bring more widespread showers and thunderstorms, providing a greater potential for heavy rainfall. Most locations should see at least a wetting rain into next week, with many locations seeing areal averages greater than one half inch. Strong and erratic outflow winds accompany the stronger storms, with otherwise diurnal wind trends. && .TWC WATCHES/WARNINGS/ADVISORIES... Flood Watch through late Wednesday night for AZZ501>515. && Public...Cerniglia Aviation...Cerniglia Fire Weather....Cerniglia Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
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</html>The Tucson radar (KEMX), 16 km away, was scanning. The volume nearest the first event began at 23:32 UTC.
2 flash flood. Local standard time, as filed.
Heavy rain of 1-2 in 1 hour caused flash flooding of roadways in southeast Tucson. Road closures included Wilmot Rd. north of Noyes, Escalante Rd. at Atterbury Wash and Harrison Rd. at the Pantano Wash.
Heavy rain of 1-1.5 in less than 1 hour in the Broadway/Alvernon area led to rises in Arroyo Chico Wash. Crossings at Plumer Ave. and others were impassable. Additionally, a man on foot was swept away near 6th St. and 9th Ave. He was rescued, but sustained minor injuries.
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, July 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: 1050032, 1050030.