The scale ranked these tornadoes from F0 (weakest) to F5 (strongest). The exact rank is determined by meteorologists and engineers after conducting surveys of damage from a particular storm.

Spring has officially arrived in the Northern Hemisphere and the tornado season, especially in the U.S. east of the Rockies, has been ramping up. From March 13-17, over 100 twisters were reported that ...

Tornadoes in the U.S. typically increase sharply in spring. Unfortunately, a few of those can be violent tornadoes, particularly in the South. On March 3, 1966, 59 years ago today, an F5 tornado ...

Both scales range from F0/EF-0 (“weak”) to F5/EF-5 (“incredible”), with the top of the scale representing winds of 323 km/h or stronger. Out of all those tornadoes, only 60 (0.085 percent) have ever ...

According to a NOAA database, 59 EF5/F5 tornadoes have occurred since 1950, but it has been nearly 12 years since the last event, when an EF5 devastated Moore, Oklahoma in 2013. Researchers from ...

Unfortunately, a few of those can be violent tornadoes, particularly in the South. On March 3, 1966, 59 years ago today, an F5 tornado tore a 202-mile long path across central and eastern ...