hurricane wind speed
But it was an unforgettable monster of a storm that caused incredible damage and killed 18 people. Well-built framed homes can sustain severe damage with loss of most of the roof structure andor some exterior walls.
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To qualify as a hurricane a storm must produce winds of over 33 meters per second.
. These values refer to well-developed wind waves of the open sea. Most trees will be snapped or uprooted and power poles downed. The highest classification in the scale Category 5 consists of storms with sustained winds of at least 157 mph.
The Great Storm of 1987 took hold in the early hours of 16 October and brought winds that peaked. For example B 95 is related to 245 ms which is equal to the lower limit of 10 Beaufort. Hurricanes may last as long as a month and although they travel very slowly - usually at about 24 kmh 15 mph - wind speeds can reach over 120 kmh 75.
Where v is the equivalent wind speed at 10 metres above the sea surface and B is Beaufort scale number. Catastrophic damage will occur. Using this formula the highest winds in hurricanes would be 23 in the scale.
Fallen trees and power poles will isolate residential areas. The lag effect between the wind getting up and the sea increasing should be borne in mind. See the table to the right for all five categories with wind speeds in various units.
Falling debris could strike people livestock and pets and older mobile homes could be. 1 ms 36 kmh 19685 ftmin 2237 mph 1 Pa 1 Nm2 14504x10-4 psi lbin2 Example - Hurricane Wind Load acting on a Wall Surface A hurricane with wind speed 35 ms is acting on a 10 m2 wall. The official term is Strong gale.
To be classified as a hurricane a tropical cyclone must have one-minute-average maximum sustained winds at 10 m above the surface of at least 74 mph. The highest wind speed reported was an estimated 119 knots 61 ms in a gust soon after midnight at Quimper coastguard station on the coast of. In a Category 1 hurricane winds range from 74 to 95 mph.
Hurricanes require a special set of conditions including ample heat and moisture. For a hurricane to form there must be a warm layer of water at the top of the sea with a. The dynamic force can be calculated as Fw 12 ρ v2 A 12 12 kgm3 35 ms2 10 m2 7350 N 735 kN.
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