National Weather Service United States Department of Commerce

Experimental Thunderstorm and Warning Probability Projection


Current areas of lightning activity. If there is no current lightning activity, the 1 and 2 hour thunderstorm projection images below will be zero.
Current Storm Motion (mph)
Projection of current lightning activity out 1 hour. Probabilities (%) show the chance for a location to be affected by current thunderstorms.
Projection of current lightning activity out 2 hours. Probabilities (%) show the chance for a location to be affected by current thunderstorms.


Updraft Helicity


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