The Wisconsin Highway Patrol says high winds picked up dust from a nearby field, blowing it across Interstate 39 Sunday and causing multiple accidents.
Troopers had to close the highway shortly after 1:00 p-m.
There was a 26-car pileup in the southbound lane and four wrecks involving two cars on the northbound side.
Only a few injuries were reported and none appeared to be serious.
That stretch of interstate was kept closed into Sunday evening for safety.
