Overview
- Nearly 70 million people were under cold alerts Monday as an Arctic air mass held across the Midwest, Ohio Valley and Northeast, with wind chills near or below zero in many major cities.
- Lake-effect and upslope snows were tapering in many areas by Monday morning, though northwest Pennsylvania remained under a Lake Effect Snow Warning with an additional 1 to 2 inches possible.
- Gusts of 30 to 40 mph continued to produce dangerous wind chills, blowing and drifting snow, and sudden drops in visibility, prompting cautions about refreeze and slick travel.
- The National Weather Service urged precautions for frostbite and hypothermia as temperatures stay well below normal through Monday before moderating on Tuesday.
- Forecasts call for highs in the 30s Wednesday and 40s Thursday for many locations, with widespread rain late Thursday into Friday and a subsequent cooldown that could flip precipitation to snow showers in some areas and create refreeze concerns.