EF-0
- Estimated wind speeds: 65 to 85 mph
- Observations: Minor damage. Winds will pull siding or gutters off homes, broken tree branches and shallow-rooted trees pushed over.
EF-1
- Estimated wind speeds: 86 to 110 mph
- Observations: Moderate damage. Roofs stripped of shingles. Mobile homes overturned or damaged. Broken glass to windows or other glass.
EF-2
- Estimated wind speeds: 111 to 135
- Observations: Considerable damage. Roofs torn off well-constructed homes. Mobile homes completely destroyed. Large trees snapped or uprooted. Cars lifted off ground.
EF-3
- Estimated wind speeds: 136 to 165 mph
- Observations: Severe damage. Well-constructed homes destroyed. Severe damage to large buildings like shopping malls. Heavy cars lifted off the ground and thrown. Trains overturned.
EF-4
- Estimated wind speeds: 166 to 200 mph
- Observations: Devastating damage. Whole frames of well-constructed homes completely leveled. Cars thrown and small missiles generated
EF-5
- Estimated wind speeds: Over 200 mph
- Observations: Incredible damage. Strong frame houses leveled off foundations and swept away. Car-sized missiles fly through the air over 100 yards. High-rise buildings have significant deformation.
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