A Sunday night squall showered snow throughout the region, delaying a small number of school openings and occupying emergency road crews well into the night.

First responders assisted with more than a dozen vehicle crashes since the snow hit.

The snowstorm caught the National Weather Service a little off-guard, said NWS meteorologist Jason Frazier.

“This was actually something that was probably not expected or at least was a low-probability event, but it goes to show how just a few degrees’ difference can make in the precipitation type during wintertime,” Frazier said. “We didn’t quite warm up as much as we were anticipating.”

These freezes led to snow piling up in 2-inch and 3-inch layers throughout the region, Frazier said.