The worst type of tornado hasn't hit the US for over a decade, perplexing experts
Researches found little evidence that tornadoes were getting weaker. Instead, it appears that a subjective tornado grading system is to blame.
Yale Climate Connections7 天
New study reveals potential cause of a ‘drought’ in violent EF5 tornadoes
A quirky aspect of the way we measure twisters helps explain why there hasn't been a top-tier-rated tornado in 12 years.
AZ Central8 天
The worst type of tornado hasn't hit the US for over a decade, perplexing experts
which ranges from EF0 to EF5. Originally created by famed tornado researcher Ted Fujita, the scale takes into account estimated wind speeds, observed damage and damage verified in weather service ...
The Enhanced Fujita Scale: A Tornado Rating System
The Enhanced Fujita Scale provides an estimated range of a tornado's wind speeds, based on the tornado's damage.