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Category 4 is the second-highest hurricane classification category on the Saffir–Simpson Hurricane Scale, and storms that are of this intensity maintain maximum sustained winds of 113–136 knots (130–156 mph, 209–251 km/h). Based on the Atlantic hurricane database, 144 hurricanes have attained Category 4 hurricane status since 1851, the ...
So an intensity of 115 kn is rated Category 4, but the conversion to miles per hour (132.3 mph) would round down to 130 mph, making it appear to be a Category 3 storm. Likewise, an intensity of 135 kn (~155 mph, and thus Category 4) is 250.02 km/h, which, according to the definition used before the change would be Category 5.
The Australian region tropical cyclone basin is located to the south of the Equator between 90°E and 160°E. [1] The basin is officially monitored by the Australian Bureau of Meteorology as well as the Indonesian Agency for Meteorology, Climatology and Geophysics (BMKG), and the Papua New Guinea National Weather Service. [1]
Once a tropical storm strengthens into a hurricane, it earns a category designation on the Saffir-Simpson Hurricane Wind Scale: 1 through 5.
The Saffir-Simpson Hurricane Wind Scale is a 1 to 5 rating based only on a hurricane's maximum sustained wind speed.Here's how it breaks down.
The Saffir-Simpson Hurricane Wind Scale rates hurricanes on a scale from 1 to 5.
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]
If it does hit at Cat 4 power, the storm by definition would be be expected to leave a trail of "catastrophic" damage. The National Hurricane Center says Category 4 storms threaten well-built ...