NORMAN, Okla.—Meteorologists are finding something much tougher to forecast than a stormy atmosphere: the human mind.
Forecasters at the federal Storm Prediction Center see a high chance of severe storms, with possible killer tornadoes, next Tuesday in Oklahoma, Kansas and Texas. Federal Emergency Management Agency chief Craig Fugate said the early heads-up helps disaster officials prepare, but what about you: Do you really need to worry—or even know about it—this far in advance?

A tornado forms near Banner Road and Praire Circle in El Reno, Okla., on May 31, 2013. Forecasters are finding that the human mind is more difficult to predict than a stormy atmosphere. AP Photo/Alonzo Adams