When severe weather warnings pop up, understanding what they mean for your safety and property is crucial. You might hear about an 'EF1 tornado' and wonder how much damage that really implies.
The recent Joplin, MO tornado anniversary brought the Enhanced Fujita (EF) scale back into public discussion.
May 22, 2011, marked the day an EF5 tornado devastated Joplin, MO, killing 161 people.