Hurricane Intensity Scale
(Saffir-Simpson Scale)
| |
Maximum
Sustained Winds |
Barometric
Pressure |
Storm
Surge |
Damage |
| Type |
KNOTS |
MPH |
millibars |
inches
of mercury |
Feet |
Meters |
|
| Depression |
less than 34 |
less than 39 |
------ |
------ |
------ |
------ |
------ |
| Tropical
Storm |
35 - 63 |
39 - 73 |
------ |
------ |
------ |
------ |
------ |
| Category
1 |
64 - 82 |
74 - 95 |
greater than 980 |
greater than 28.94 |
3 - 5 |
1.0 - 1.7 |
minimal |
| Category
2 |
83 - 95 |
96 - 110 |
979 - 965 |
28.50 - 28.91 |
6 - 8 |
1.8 - 2.6 |
moderate |
| Category
3 |
96 - 113 |
111 - 130 |
964 - 945 |
27.91 - 28.47 |
9 - 12 |
2.7 - 3.8 |
extensive |
| Category
4 |
114 - 135 |
131 - 155 |
944 - 920 |
27.17 - 27.88 |
13 - 18 |
3.9 - 5.6 |
extreme |
| Category
5 |
136+ |
156+ |
less than 920 |
less than 27.17 |
19+ |
5.7+ |
catastrophic |
NOTE:
The Saffir-Simpson Scale provides an indication of a hurricanes strength
based primarily on wind speed. Other factors such as flooding can be
extremely dangerous.
Listen to information provided by your local Weather Service office or
Emergency Management Officials.
| 
WB4OEQ