A severe Arctic air mass is set to plunge the Lehigh Valley region into dangerously cold conditions overnight Monday into Tuesday, with temperatures potentially approaching record low levels.

Residents should prepare for single-digit temperatures and wind chills that could make being outdoors extremely hazardous.

The National Weather Service forecast indicates temperatures will drop dramatically after a cold front passes through the region Monday morning. Low temperatures overnight are expected to range from single digits in higher terrain to low teens elsewhere, with wind chills making it feel even colder. The Lehigh Valley and Pocono regions are expected to experience the most extreme cold, with some areas potentially coming within a few degrees of record low temperatures for the Dec

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