Damaged wind turbines have become important clue in solving a tornado's strength

How common are EF5 tornadoes? Learn more about the Enhanced Fujita scale and severe weather season

REPORT: Haskell County tornado rates EF2 on Enhanced Fujita scale

Before & After Tornado Devastation

Come along with me for a tour of the tornado damage in Barnsdall Oklahoma - damage consistent with an EF3 to EF4 tornado. The NWS continues assessments. At least one person has died, 30-40 homes destroyed along with other buildings. @weatherchannel continues coverage as this severe weather season rolls on, lives forever changed. | Justin Michaels

Madison County Strong: Survivors recount their experiences during Winterset tornado

What is the Enhanced Fujita scale? What to know about EF tornado categories

Let's Draw the Enhanced Fujita Tornado Scale! (EF-#)

Enhanced Fujita Scale explained