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To be classified as a hurricane, a tropical cyclone must have one-minute-average maximum sustained winds at 10 m (33 ft) above the surface of at least 74 mph (64 kn, 119 km/h; Category 1). [1] The highest classification in the scale, Category 5 , consists of storms with sustained winds of at least 157 mph (137 kn, 252 km/h).
A Category 4 hurricane has winds of 113 to 136 kn (130 to 157 mph; 209 to 252 km/h), while a Category 5 hurricane has winds of at least 137 kn (158 mph; 254 km/h). [1] [3] A post tropical cyclone is a system that has weakened, into a remnant low or has dissipated and formal advisories are usually discontinued at this stage. [1]
A Category 5 Atlantic hurricane is a tropical cyclone that reaches Category 5 intensity on the Saffir–Simpson hurricane wind scale, within the Atlantic Ocean to the north of the equator. They are among the strongest tropical cyclones that can form on Earth, having 1-minute sustained wind speeds of at least 137 knots (254 km/h ; 158 mph ; 70 m ...
The Atlantic hurricane season begins on June 1 and runs through Nov. 30 and on average, the Atlantic basin sees about seven hurricanes and three major hurricanes a year.. On the Saffir-Simpson ...
But look at Hurricane Beryl, which hit Texas this week as a “mere” Category 1 storm — far weaker in wind strength than when it swept through the Caribbean as a Cat 5 just days earlier ...
Just seven hours before making landfall on Sept. 28, 2022, peak winds in the eye of Hurricane Ian reached 160 mph (140 knots), meeting the criteria of a Category 5 hurricane on the Saffir-Simpson ...
As of 2021, the scale - which has been updated several times, and has minor variations between different military bases - consists of 5 levels, from HURCON 5 to HURCON 1, with three additional sub-levels for HURCON 1. [1] As with civilian alerts, buildings may be boarded up and personnel evacuated. In addition; aircraft, ships, equipment, and ...
But the storm could reach the level of a hypothetical Category 6 − and further stir debate about whether the National Hurricane Center’s long-used scale for classifying hurricane wind speeds ...