As projected, the polar vortex system which dropped Oil Region temperatures to their lowest marks in twenty years, was short-lived.
After lows that reached down to -17 on Tuesday, temperatures Wednesday are expected to climb into the upper teens, and the mercury should peak in the mid-forties over the weekend.
After the past mild weekend, the temperature plummeted from the lower forties at about 2:00 AM Monday to 16 degrees below zero in Oil City by daybreak Tuesday, to -13 in Franklin and to a regional low of -17 in Clarion. Combined with strong gusty winds, the wind chill factor dropped to -42 in Clarion and to -39 at Venango Regional Airport in Franklin.
Schools around the area were closed on Tuesday, as were many social agencies and a few businesses. All schools started Wednesday under a two-hour delay.