Nw Pinal storm history

Near zero visibility due to blowing dust, also described as a temporary blackout, contributed to two traffic pileups on a stretch of Interstate 8 west of Casa Grande.

Very low visibility with blowing dust in Arizona City.

Low visibility across a large portion of NW Pinal County.

Winds estimated at 45 mph caused widespread blowing dust with visibility less than 1/4 mile in Casa Grande and Apache Junction.

Near zero visibility due to dense blowing dust between Florence and Coolidge.

Dense blowing dust and visibility as low as 50 feet reported between Arizona City and Florence.

Visibility reduced to less than a quarter mile in blowing dust just south of Coolidge and in Arizona City.

Dense blowing dust reduced the visibility to less than 1/4 mile.

Dense blowing dust reduced the visibility to about a quarter mile between Florence and Queen Creek.

Gusty thunderstorms winds caused considerable blowing of dust over a broad area of northwest Pinal County. Visibility was reported to be less than 200 yards along Interstate 8 and near the community of Maricopa, north of the Interstate 8.

Widespread dense blowing dust spread across a large area of Pinal County between Apache Junction and Casa Grande. Several vehicles involved in accidents along route 347 just south of I-10. Wind speeds were generally 40 to 50 mph and at times the visibility was less than 50 feet. …

Blowing dust reduced visibility to less than 1/4 mile near Casa Grande.

Dense blowing dust moved across the area during the evening. Visibility at times was reported to be less than a quarter mile.