DES MOINES, Iowa (AP) — Severe storms have prompted reports of tornadoes in central Iowa. Meterologist Frank Boksa with the Des Moines office of the National Weather Service says an apparent tornado hit Lake City, in Calhoun County, on Sunday night and authorities have reported structural damage and uprooted trees.

Boksa says a school was damaged and multiple roofs were blown off houses. There were no immediate reports of fatalities or injuries. A tornado was also reported in Pocahontas County.

In Nebraska, a frost advisory is in effect for much of the western part of the state, which also saw snow on Sunday. More than 18 inches were reported near Chadron.