State and local police investigate one of the dozens of crashes Sunday afternoon that occurred as a band of snow and sleet moved through Butler County.

Mother Nature wreaked havoc on motorists late Sunday afternoon when a band of snow and sleet blew through the county, causing headaches for drivers and a flurry of activity for 911 dispatchers, police and emergency crews. Dozens of crashes occurred between 4 and 6 p.m., according to officials.

The first crash sent police to Interstate 79 near the 94 mile marker, where a multiple vehicle crash was reported.

About the time police determined there were no injuries and damage to the vehicles was minor, they were dispatched to another accident on the interstate in Muddy Creek Township.

When that accident scene was secured, dispatchers reported a car over an embankment in Muddy Creek Township at Perry Highway and Bauder Mill Road.

The accident reports were spread across the county.

Police in Cranberry Township at 4:45 p.m. responded to a report of a car over an embankment near Graham School and Rochester roads.

John Frazier, a meteorologist with the National Weather Service in Pittsburgh, said Butler County would remain under a winter weather advisory until midnight, but the potential existed for the sleet to change over to rain.

He said a light glaze to one-quarter inch of sleet was predicted, and snow on the back side of the band could bring up to an inch of accumulation.

The biggest impact of the band of snow and sleet, Frazier said, was estimated to be between 5 and 7 p.m. Sunday.

Not much more precipitation was expected after the band moved on to the east, Frazier said.

The Butler Eagle will update Facebook throughout the day Monday as more information becomes available.