EFU stands for Enhanced Fujita Unknown, meaning that the damage is too minimal to determine a rating or there's no assessable damage.

This is the deadliest tornado in U.S. history. It killed 695 people and injured 2,027 others. It destroyed nearly every town it crossed, with a total of 15,000 homes wiped out. The damage dealt would ...

The Tri-State tornado remains the deadliest and longest-tracked tornado in US history. No modern storm comes close: 695 lives lost, 2,027 people injured, 13 counties devastated, and 15,000 homes ...

A severe thunderstorm watch is in effect until 10 p.m. Tuesday for most of the tri-state area, as thunderstorms threaten to bring powerful straight-line winds... Skip to content Breaking ...