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It is calculated by summing the square of tropical cyclones' maximum sustained winds, as recorded every six hours, but only for windspeeds of at least tropical storm strength (≥ 34 kn; 63 km/h; 39 mph); [4] the resulting figure is divided by 10,000 to place it on a more manageable scale. [2]
The Saffir–Simpson hurricane wind scale is based on the highest wind speed averaged over a one-minute interval 10 m above the surface. Although the scale shows wind speeds in continuous speed ranges, the US National Hurricane Center and the Central Pacific Hurricane Center assign tropical cyclone intensities in 5-knot (kn) increments (e.g ...
weather: rate of heat energy release by a hurricane [citation needed] 10 14: 1.4 × 10 14: eco: global net primary production (= biomass production) via photosynthesis [47] 2.9 × 10 14: tech: the power the Z machine reaches in 1 billionth of a second when it is fired [citation needed] 3 × 10 14: weather: Hurricane Katrina's rate of release of ...
Tropical Storm Allison, which did not receive a hurricane numerical designation on the Saffir-Simpson scale, made landfall in Texas in 2001, causing catastrophic flooding and the deaths of more ...
Fed by climate change, hurricanes have outpaced the tool meteorologists use to convey their strength, and the National Hurricane Center should add a Category 6 to the Saffir-Simpson scale to ...
As storm winds organize into a hurricane, they pull energy from the heat in surface waters. ... just weeks ahead of Milton's formation, the Gulf was the warmest for that time of year on record ...
A minor change to the scale was made ahead of the 2012 hurricane season, with the wind speeds for Categories 3–5 tweaked to eliminate the rounding errors that had occurred during previous seasons, when a hurricane had wind speeds of 115 kn (130 mph; 215 km/h). [7]
This scale can be used to determine possible storm surge and damage impact on land. In most basins, the category of the tropical cyclone (for example, tropical depression, tropical storm, hurricane/typhoon, super typhoon, depression, deep depression, intense tropical cyclone) is determined from the cyclone's maximum sustained wind over one minute.