Spring may be almost here, but it might not feel like it for millions facing alerts for wintry weather, including heavy snow, possible tornadoes and high winds

Tornado watches and tornado warnings have different purposes, and you should react to each differently, AccuWeather explains. A tornado watch is typically issued hours in advance by NOAA's Storm Prediction Center (SPC).

A Severe Thunderstorm Watch is in place Monday night as the last of a line of storms moves through the D.C. area.