NEW ORLEANS (AP) — A wintry blast in north Louisiana was expected to dump anywhere from 1 to 5 inches of snow Wednesday, making for hazardous driving conditions, forecasters said.

A winter storm warning was in effect for north Louisiana until 6 p.m. Wednesday.

National Weather Service Meteorologist Travis Washington said freezing rain, sleet and light snow would turn to all snow. Washington said 1 to 3 inches was expected along the Interstate 20 corridor. About 5 inches was possible in some areas.

Ice was a problem on bridges and overpasses and officials said roads also could become icy.

State officials closed offices in 25 parishes. Public schools and universities across north Louisiana also were closed.

Winter weather prompted some businesses to have had food delivered to office workers.

Alli Walsh, manager of Jimmy John’s Gourmet Sandwiches in southeast Shreveport, said the restaurant has been delivering more food this week because of the weather.

Walsh said “the first question asked when you answer the phone is ‘Are you delivering?’”

Walsh said she had 5 to 6 delivery people working, handling multiple orders.

Business was booming for a northwest Louisiana wrecker service.

“Drivers in the South don’t know how to drive when the roads are icy,” said Candy Jett of Smith’s Wrecking Service in Bossier City. She said calls for service have doubled. One day this week the business towed 50 cars that were either in a wreck or had to be pulled from a ditch.

“They don’t pay attention and drive too fast,” Jett said.