Extensive damage to roof covers, windows, and doors will occur. Saffir-Simpson Hurricane Scale Cat 4 Category Four Hurricane: Winds 131-155 mph (114-135 ktor 210-249 km/hr). Near-total power loss is expected with outages that could last from several days to weeks. Unprotected windows will be broken by flying debris. Complete failure of older metal buildings is possible, and older unreinforced masonry buildings can collapse.Numerous windows will be blown out of high-rise buildings resulting in falling glass, which will pose a threat for days to weeks after the storm. Unprotected windows will have a high chance of being broken by flying debris. Nearly all windows will be blown out of high-rise buildings, and nearly all-commercial signage, fences, and canopies will be destroyed.Nearly all trees will be snapped or uprooted and power poles downed. Windows in high-rise buildings can be broken by flying debris. Unprotected windows will have a high probability of being broken by flying debris.Well-constructed frame homes could sustain major roof and siding damage. Take control of your data:The Weather Channel Hurricane Expert Dr. Rick Knabb explains the Saffir-Simpson Hurricane Wind Scale for hurricanes.The Weather Company’s primary journalistic mission is to report on breaking weather news, the environment and the importance of science to our lives. Extensive damage to roof covers, windows, and doors will occur. Unreinforced masonry walls can collapse.Windows in high-rise buildings can be broken by flying debris. Category 4 hurricanes now have a wind speed range of 130-156 mph (previously 131-155 mph).
High percentage of structural damage to the top floors of apartment buildings. Fallen trees and power poles will isolate areas.
Well-built frame homes can experience major damage involving the removal of roof decking and gable ends.There will be a high percentage of roof covering and siding damage to apartment buildings and industrial buildings.
Most newer mobile homes will sustain severe damage with potential for complete roof failure and wall collapse.
Masonry chimneys can be toppled. Also, storm surge was quantified by category.However, hurricanes with wind fields which are very large in size can produce storm surge heights that are much higher than is average for a given category, such as was the case with Category 2 Hurricane Ike in 2008.Conversely, very compact hurricanes, even if extremely strong wind-wise and with very low central pressures as was the case with Hurricane Charley in 2004, can produce surges substantially lower than what was included in the original scale.This scale does not account for how much rainfall or how many tornadoes a hurricane will produce either. Numerous windows will be blown out of high-rise buildings, and most commercial signage, fences, and canopies will be destroyed.Many trees will be snapped or uprooted. Steel frame in older industrial buildings can collapse. An example of this is when a hurricane has an intensity of 115 knots. Industrial buildings can lose roofing and siding, especially from windward corners, rakes, and eaves.Failures to overhead doors and unprotected windows will be common.
“For example, it saw Hurricane Dorian as a cluster of about 150 deep convective clouds, while Hurricane Katrina contained about 500. Category 3 hurricanes now have a wind speed range of 111-129 mph (previously 111-130 mph). In general, damage rises by about a factor of four for every category increase.The scale was modified slightly in 2012.
This story does not necessarily represent the position of our parent company, IBM. Nearly all windows will be blown out of high-rise buildings resulting in falling glass, which will pose a threat for days to weeks after the storm.Nearly all commercial signage, fences, and canopies will be destroyed. By Nathaniel Scharping August 14, 2019 3:24 PM. Power outages and long-term water shortages may last for many months; most of the area will be uninhabitable during that period.Almost complete destruction of all mobile homes will occur, regardless of age or construction.