Deep monsoon moisture over northern Arizona produced scattered showers and thunderstorms. One storm north of Swnoflake produced a landspout north of Snowflake.
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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 FGZ wrote it up.
Deep monsoon moisture over northern Arizona produced scattered showers and thunderstorms. One storm north of Swnoflake produced a landspout north of Snowflake.
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 26, 2:00 PM MST, 1 hour 32 minutes earlier.
Area Forecast Discussion National Weather Service Flagstaff AZ 200 PM MST Fri Jul 26 2024 .SYNOPSIS...Look for a good chance of showers and thunderstorms today, especially along and south of I-40. Over the weekend, a downward trend in storm activity is expected for much of northern Arizona, as a drier air mass moves in from the west. Accompanying the drier air will be locally breezy afternoon southwest winds and slightly cooler temperatures. && .DISCUSSION...Outflows/thunderstorms now pushing south and/or southwest of the Mogollon Rim/White Mtns this afternoon, about as expected. Training could lead to Flash Flooding, especially south of the Mogollon Rim. Increased shear and the dry layer presence aloft may also lead to isolated larger hail development, again, most likely south of the Mogollon Rim. After a good chance of showers and storms today, look for a near shutdown of monsoon activity through at least early next week with any remaining activity being relegated to our east-central zones. Saturday through Wednesday, the high pushes southward under the influence of a passing trough to the north. Drier air will push across the area with a near shutdown of showers and storms except for the area along and south of a Heber to St. Johns line. The approach of the trough will strengthen pressure gradients with afternoon southwest winds at 10 to 20 mph, gusting 25 to 30 mph on Saturday/Sunday. From Monday into Wednesday, troughing will begin to weaken and high pressure gradually reemerge with weakening pressure gradients and associated afternoon winds. Look for slightly cooler daytime temperatures for much of the period, as the influence of the high aloft abates. Thursday and the end of next week, forecast models show the last of the Pacific Northwest troughs lifting and moving to the east with the high amplifying back over the western states. If this pattern emerges the door would once again open to moist low-level flow from over the Gulf of California and thunderstorm outflow from over northwest Mexico/southeast Arizona to push moisture back northward across Arizona. However, any additional trough energy dipping down from Canada would delay the northward shift of the high. && .AVIATION...Friday 26/18Z through Saturday 27/18Z...Outside of convective activity, expect VFR conditions. From 19Z Friday-03Z Saturday, SCT SHRA/TSRA and ISOLD +TSRA may produce brief MVFR and gusty/erratic winds, mainly along and south of the I-40 corridor. ISOLD and short-lived cells outside of that area. AWay from storms/outflows, daytime sfc winds W-SW10-15kts. OUTLOOK...Saturday 27/18Z through Monday 29/18Z...VFR conditions are expected, aside from southern Apache County. Daily afternoon/evening SHRA/TSRA is this area may produce localized MVFR conditions. Daytime sfc winds W-SW15-25kts. && .FIRE WEATHER...Saturday and Sunday...A drying trend for this period. Any showers/ thunderstorms mainly confined to the eastern Mogollon Rim/southern Apache County. Afternoon southwesterly winds 15 to 25 mph both days. Monday through Wednesday...The drying trend continues, with minimum humidity falling to 10 to 25 percent. Precipitation chances limited to southern Navajo and Apache counties. Afternoon southwesterly winds decreasing to 10 to 20 mph. && .FGZ WATCHES/WARNINGS/ADVISORIES...None. && PUBLIC...Peterson/McCollum AVIATION...Peterson FIRE WEATHER...Peterson For Northern Arizona weather information visit weather.gov/flagstaff
Preliminary Local Storm Report
National Weather Service Flagstaff AZ
1211 PM MST Fri Jul 26 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1200 PM Hail 2 ENE Downtown Flagstaf 35.20N 111.61W
07/26/2024 E0.50 Inch Coconino AZ Public
Half inch hail reported by the public and a
NWS Employee.
&&
BEPThe Flagstaff radar (KFSX), 92 km away, was scanning. The volume nearest the first event began at 22:29 UTC.
1 tornado. Local standard time, as filed.
Photo of landspout tornado was taken from 1 mile north of Snowflake. Submitter estimated the landspout to be about 10 miles to the southwest of their location.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2024Every state in 2024This day in weather historyThe tornado archive for Arizona, 2024Warnings in Arizona, July 2024
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: 1206420.