Intensity is defined by the Enhanced Fujita Scale (NWS)
| Rating | Wind speed, damage, and frequency |
|---|---|
| EF0 (Light) | 65-86 mph (105-137 km/h) - Breaks tree branches, damages gutters, and strips off some roof shingles. Approximately 600+ per year, occurrence odds 1 in 1.9 |
| EF1 (Moderate) | 87-110 mph (140-177 km/h) - Uproots small trees, pushes mobile homes off foundations, and peels off roofs. Approximately 400+ per year, occurrence odds 1 in 2.7 |
| EF2 (Considerable) | 111-135 mph (179-217 km/h) - Snaps large trees, tears roofs off frame houses, and flips cars. Approximately 120+ per year, occurrence odds 1 in 11 |
| EF3 (Severe) | 136-165 mph (219-266 km/h) - Destroys entire stories of well-built houses, overturns trains, and tosses heavy cars. Approximately 30 per year, occurrence odds 1 in 49 |
| EF4 (Devastating) | 166-200 mph (267-322 km/h) - Levels well-constructed houses and turns structures into flying debris. Approximately 7 per year, occurrence odds 1 in 222 |
| EF5 (Incredible) | Over 200 mph (322+ km/h) - Sweeps away strong frame houses, carries large steel-reinforced buildings away, and strips bark from trees. Less than 1 per year, occurrence odds 1 in 2393 |