Category 5 Hurricanes began to appear in the US in the 1930s. The frequency of US landfall Hurricanes has diminished since the 1940s. Increased Ocean Water Temperatures is tracked to determine hurricane intensity. The populations in Hurricane-Prone States have increased. Wind Damage and Flooding from Landfall Surge and Rain are causing damage to homes and businesses.
US Landfall Hurricanes by Decade
Decade Total Cat 1 Cat 2
Cat 3 Cat 4 Cat 5
1850s 16 7
4 4 1
0
1860s 17 5
8 2 2
0
1870s 19 8
5 6 0
0
1880s 25 11
9 4 1
0
1890s 19 8
4 5 2
0
1900s 17 10
2 4 1
0
1910s 21 8
6 4 3
0
1920s 16 8
3 3 2
0
1930s 18 9
4 3 1
1
1940s 24 8
8 4 4
0
1950s 17 7
4 3 3
0
1960s 12 1
6 2 2
1
1970s 12 6
2 3 1
0
1980s 15 9
2 3 1
0
1990s 14 2
7 4 0
1
2000s 19 8
4 6 1
0
2010s 13 7
3 0 2
1
2020s 10 3 2 2 3 0
https://www.aoml.noaa.gov/hrd/hurdat/All_U.S._Hurricanes.html
Cat 1 74-95mph
Cat 2 96-110 mph
Cat 3 111-129mph
Cat 4 130-156mph
Cat 5 157mph-or higher
https://www.weather.gov/mfl/saffirsimpson
Hurricane Helene landed as a Cat 3. Helene took a Northern Path and collided with a large West to East Thunderstorm that ravaged mountainous rural areas in Western North Carolina. Roads were washed out requiring rescue by helicopter. Hurricane Milton quickly followed Helene with a move through Florida before debris from Helene was removed. Milton landed at Siesta Key, South of Sarasota FL as a Cat 3 on 10-10-24 and moved through Florida. Milton had developed as a Cat 5 Hurricane, moved to a Cat 4 and landed as a Cat 3.
The water temperature in the Gulf is at least 77°F and at most 87°F. The seasonal average water temperature is between 77°F and 85°F. The top 700 meters (2,300 feet) of the global ocean has warmed about 1.5°F since 1901.
Norb
Leahy, Dunwoody GA Tea Party Leader
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