A powerful winter storm system swept through the region Monday, bringing a dramatic change in weather conditions. As the system moved out on its back side, severe thunderstorms quickly gave way to a mix of sleet and rain north of Columbus.

Winter has ended — according to meteorologists. While we may yet have some cold days ahead of us, we’ve survived until March. That means we’ve seen the end of meteorological winter, which begins Dec. 1 and continues through the end of February. (The calendar’s first day of spring is March 20.)

Buckle up. Kentucky is about to experience one of the most dramatic weather swings of the season as spring and winter collide over the next 24 hours, bringing severe storms this evening, followed by a dangerous cold crash and snow.

As northern Wisconsin starts snow cleanup Saturday morning, residents in the Milwaukee area are preparing for a winter storm expected to hit overnight, with local hardware stores balancing supplies for both winter and spring.

An overnight burst of wet snow collided with peak spring break traffic at Denver International Airport on Sunday, March 15, triggering hundreds of delays and cancellations and leaving travelers parked at gates instead of blasting off.