April 1, 2012
In this April 27, 2011, file photo a deadly tornado moves through Tuscaloosa, Ala. The National Weather Service is kicking off an experiment starting April 2, 2012 with a new kind of tornado warning that's aimed to scare people into seeking shelter.
Stories this photo appears in:
In a test that starts Monday, five weather service offices in Kansas and Missouri will use words such as "mass devastation," ''unsurvivable" and "catastrophic" in a new kind of warning that's based on the severity of a storm's expected impact.