Estimating Wind Speed

Wind Speed

Appearance of Wind Effects

50 - 58 mph Small branches or limbs broken (less than 2" diameter)
58 - 70 mph Large limbs knocked down, the size of an adult's wrist; power lines knocked down; a few house shingles torn off.
70 - 80 mph A few small trees or shrubs can be uprooted; Very large branches broken off; Barns may sustain considerable damage.
> 80 mph Trees may be uprooted or snapped, power poles snapped or knocked over; large vehicles can be blown off the road. Roofs blown off homes

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