Search results
Results from the WOW.Com Content Network
Category 1: Winds 74-95 mph. Damage primarily to shrubbery, trees, poorly constructed items, and unanchored mobile homes. Category 2: Winds 96-110 mph. Some roof damage, shingles, tiles, and shutters.
Category 1 hurricane: 74-95 mphVery dangerous winds will produce some damage: Well-constructed frame homes could have damage to roof, shingles, vinyl siding and gutters. Large branches of trees ...
The old scale lists an F5 tornado as wind speeds of 261–318 mph (420–512 km/h), while the new scale lists an EF5 as a tornado with winds above 200 mph (322 km/h), found to be sufficient to cause the damage previously ascribed to the F5 range of wind speeds.
Wind speed alone is not enough to determine the intensity of a tornado. [3] An EF0 tornado may damage trees and peel some shingles off roofs, while an EF5 tornado can rip well-anchored homes off their foundations, leaving them bare— even deforming large skyscrapers.
From these wind speed numbers, qualitative descriptions of damage were made for each category of the Fujita scale, and then these descriptions were used to classify tornadoes. [ 9 ] At the time Fujita derived the scale, little information was available on damage caused by wind, so the original scale presented little more than educated guesses ...
On its website, it said its general view was "that damage can occur even when the wind speed is lower than level 10 on the Beaufort scale", which starts at 48 knots, or 55mph.
The state increased performance criteria for wind-load provisions and adopted new wind provisions from the American Society of Civil Engineers. One important addition to the new code was the requirement of missile-impact resisting glass , which can withstand high-velocity impact from wind-borne debris during a hurricane.
It would kill 46 people — seven in Washington — fell trees by the thousands and shuck shingles from roofs like husks of corn. ... with wind speeds as high as 176 mph — an improbable speed ...