SAN MARCOS, Texas (AP) - Authorities say at least ten homes, several businesses and the San Marcos Police Department's headquarters have been damaged in a powerful storm this morning.
It's part of a large weather system that's bringing flooding rains to the Austin area and icy conditions to parts of North Texas.
In San Marcos, the storm blew out windows and collapsed a wall at the police department building, and ripped the roofs off of nearby homes and businesses, a city spokeswoman says.
It also toppled power lines along Interstate 35 -- closing the busy north-south highway for three hours -- while crews removed the fallen lines.
It's unclear if the damage was caused by a tornado or straight line winds.
Across Central Texas there have been widespread reports of high water rescues and flooding after more than six inches of rain fell in some spots.
An ice storm warning is in effect until Monday morning for much of North Texas -- including Dallas and Fort Worth.
About 300 flights have been canceled so far at Dallas-Fort Worth
International Airport. Crews there have also begun deicing airplanes before takeoff, creating further delays.
TXU Electric Delivery says additional work crews are on standby for the storm's duration.