CLEVELAND, Ohio (WOIO) - The worst of this arctic assault is happening this morning with double digit below zero wind chills. Expect a blustery afternoon with temperatures 10 to 15 degrees. A south wind this afternoon at 10-20 mph. The sky turns cloudy by early afternoon.

On Tuesday at 11:08 a.m. an updated extreme cold warning was issued by the National Weather Service in effect until noon. The warning is for Mason City and Waterloo-Cedar Falls