Study key findings & significance

• The study provides evidence that tornado activity is increasing in the fall

Abstract

Previous studies provide evidence of possible changes to the climatology of tornadoes in the United States.

Study key findings & significance

• The study provides evidence that tornado activity is increasing in the fall

Abstract

Previous studies provide evidence of possible changes to the climatology of tornadoes in the United States.

Study key findings & significance

• There is a clear upward trend in tornado power over the past few decades that amounts to 5.5% per year controlling for time of day, time of year, natural variability, and the switch to a new damage rating scale. 
• Part of the trend can be attributed to long-term changes in convective storm environments involving dynamic and thermodynamic variables and their interactions.