An isolated thunderstorm developed during the late afternoon hours on the 30th just south of I-8 near Casa Grande, AZ and steadily moved eastward towards I-10 near Eloy. The thunderstorm was fueled by MLCAPE values near 500 J/KG.
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The episode as NWS PSR wrote it up.
An isolated thunderstorm developed during the late afternoon hours on the 30th just south of I-8 near Casa Grande, AZ and steadily moved eastward towards I-10 near Eloy. The thunderstorm was fueled by MLCAPE values near 500 J/KG. With DCAPE values exceeding 1000 J/KG, strong gusty winds was the main hazard with nearby surface observing sites reporting wind gusts exceeding 40 mph. Winds of this magnitude were enough to produce dense blowing dust along I-10 near Toltec Rd, just northwest of Eloy, AZ.
The national radar mosaic for the moment the first event began.
1 dust storm. Local standard time, as filed.
Visibility down as low 50-100 ft in dense blowing dust from thunderstorm winds along I-10 near Toltec Rd. This resulted in cars pulling off to the side of the road on I-10. No accidents nor injuries were reported.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2026Every state in 2026This day in weather historyWarnings in Arizona, March 2026
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: 1323986.