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The Saffir–Simpson hurricane wind scale (SSHWS) is a scale that classifies hurricanes—which in the Western Hemisphere are tropical cyclones that exceed the intensities of tropical depressions and tropical storms—into five categories distinguished by the intensities of their sustained winds.
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]
However, Hurricane Catarina in 2004, to date the only hurricane in the south Atlantic, brought additional review. A subsequent study found that there was an average of 1–2 subtropical or tropical cyclones per year in the Southern Atlantic in recent decades. [ 30 ]
Once a tropical storm strengthens into a hurricane, it earns a category designation on the Saffir-Simpson Hurricane Wind Scale: 1 through 5.
On its way to the North Carolina coast, Hurricane Florence weakened, yet simultaneously meteorologists warned that it was becoming more dangerous. Hurricane category ratings can be misleading ...
Radar image of Hurricane Alice (1954–55), the only Atlantic tropical cyclone on record to span two calendar years at hurricane strength. Climatologically speaking, approximately 97 percent of tropical cyclones that form in the North Atlantic develop between June 1 and November 30 – dates which delimit the modern-day Atlantic hurricane season.
The hurricane rating system shoehorns storms into categories that don’t recognize water — the fiercest adversary produced by tropical cyclones.
The 1935 Labor Day hurricane was the most intense hurricane to make landfall on the country, having struck the Florida Keys with a pressure of 892 mbar.It was one of only seven hurricanes to move ashore as a Category 5 hurricane on the Saffir–Simpson hurricane scale; the others were "Okeechobee" in 1928, Karen in 1962, Camille in 1969, Andrew in 1992, Michael in 2018, and Yutu in 2018, which ...