Deep moisture, light winds, and clear conditions in the morning allowed thunderstorms to produce heavy rain, flash flooding, and severe hail.
Every event with a place to put it. 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 FGZ wrote it up.
Deep moisture, light winds, and clear conditions in the morning allowed thunderstorms to produce heavy rain, flash flooding, and severe hail.
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 Flagstaff, AZ wrote its last area forecast discussion before the first event at Jul 17, 9:45 AM MST, 3 hours 10 minutes earlier.
Area Forecast Discussion National Weather Service Flagstaff AZ 945 AM MST Sun Jul 17 2022 .SYNOPSIS...Monsoon moisture will remain in place for the foreseeable future. Expect showers and thunderstorms to develop each day, with lightning and heavy rain being the primary threats. Warmer than average temperatures are expected this weekend and lasting into next week. && .DISCUSSION...Sunny skies, decent PW values and southeasterly steering flow will make for an active day today. Expect initial storm activity over higher terrain features, the Mogollon Rim, the Bradshaws and the Chuskas, spreading westward through the day and into this evening. These conditions repeat for Monday, although there may be a slight downturn in activity, if we get really worked over today. Daytime temperatures will remain very warm for this forecast period, the only relief coming from rainfall. Forecast is in good shape, no updates needed. && .AVIATION...For the 18Z TAF package...Mainly VFR conditions are expected for the TAF period, outside of thunderstorms. Areas MVFR possible from 18Z-03Z, due to SHRA/TSRA and ISOLD +TSRA. Sfc winds generally light, aside from thunderstorm activity. Aviation discussion not updated for TAF amendments. && .FIRE WEATHER...Scattered showers and thunderstorms and warm temperatures are expected Sunday and Monday. Storms most numerous initially over higher terrain feature, then shifting westward late each afternoon and evening. Tuesday through Thursday...Chances for afternoon and evening showers and thunderstorms remain, but the emphasis for storm activity shifts a bit eastward. Outside of thunderstorms, temperatures will be warm with generally light winds. && .FGZ WATCHES/WARNINGS/ADVISORIES... Excessive Heat Warning until 6 PM MST Wednesday for AZZ005-006 below 4500 feet. && PUBLIC...Peterson AVIATION...Peterson FIRE WEATHER...BAJ/Peterson For Northern Arizona weather information visit weather.gov/flagstaff
The Flagstaff radar (KFSX), 118 km away, was scanning. The volume nearest the first event began at 19:57 UTC.
1 hail, 1 thunderstorm wind, 1 heavy rain, 1 flash flood. Local standard time, as filed.
A mix of dime to quarter sized hail was reported northwest of Pinetop-Lakeside.
Strong winds from thunderstorms broke tree limbs.
A trained spotter reported 2.20 inches of rain south-southeast of Camp Verde.
Heavy rain produced flash flooding and road closures in Verde Lakes.
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: 1050184, 1046795, 1046794, 1046793.