TULSA, Oklahoma - City of Tulsa street crews are out with plows and salt spreaders.

Priority No. 1 is to get the main roads all cleared up.

More than 50 crews are out in trucks on Sunday evening.

"I don't think it's going to be that big of an issue," street maintenance manager Tim McCorkell said. "We'll get it taken care of,"

Crews already on standby were called in when Green Country received 2 to 3 inches of snow over a short time span.

"Full staff is in right now," McCorkell said. "So these guys will run midnight. We'll have another shift come in at midnight to run through the morning."

Crews rolled out just before 10 a.m. on Sunday with the plows down and the spreaders on.

McCorkell is worried about people heading out on the roads on Sunday night.

"A lot of people are traveling," McCorkell said. "I hope they just stay safe, especially this afternoon once the Super Bowl is over with, they need to keep in mind there's going to be some slick road conditions out there so be careful."

Crews are plowing the major arteries and cross streets.

They are also clearing roads surrounding hospitals for emergency vehicles.

School officials also were forced to call off classes for many area campuses.

The snow maybe over, but the roads are still too slick for buses, officials said.

Tulsa Public Schools Administrators anticipated the roads would start freezing overnight.

Neighborhood streets are usually the last to be treated by salt spreaders and plow crews.

Tulsa Public Schools joined other area large districts like Jenks, Union, Sand Springs, Broken Arrow and Claremore and closed classes for Monday.

On Tuesday, the forecast will have flipped from Sundays. While on Sunday most of the snowfall hit south and east the Interstate 40 corridor, Tuesday's winter blast is predicted to focus on areas north and west of I-40.

A third storm is possible later in the week, according to our WARN Team meteorologists.