Category 1: wind speeds 74 to 95 mph. “Some damage” including downed power lines, broken tree limbs, and damage to well built homes’ roofs and gutters.
Category 2: wind speeds 96 to 110 mph. “Extensive damage” including uprooted trees, “major roof and siding damage” to houses, and power outages that last for days or weeks.
Category 3: wind speeds 111 to 129 mph. “Devastating damage” including roof decking and gable ends ripped off houses.
Category 4: wind speeds 130 to 156 mph. “Catastrophic damage” including roofs and walls removed from houses; most of the area will be “uninhabitable for weeks to months.”
Category 5: wind speeds 157 mph and up. A “high percentage” of homes will be totally destroyed.