There is some indication a storm with wind and snow may crank up affecting the northern and central Plains later this weekend.

The tornado frequency increases in the spring as the warm and cold seasons battle it out in the U.S.

Top news stories for Feb. 22.

For AccuWeather's Severe Weather Week, watch a tornado video for every month of 2011.

Last year, 2011, went down in the record books as the fourth deadliest tornado year ever in the U.S. with 550 fatalities.