NARGIS 2

Saffir-Simpson Scale
The chart color codes intensity (category based on Saffir-Simpson scale):
Type
Category
Pressure (mb)
Winds(knots)
Winds(mph)
Surge(ft)
Line Color
Depression
TD
-----
< 34
< 39

Green
Tropical Storm
TS
-----
34-63
39-73

Yellow
Hurricane
1
> 980
64-82
74-95
4-5
Red
Hurricane
2
965-980
83-95
96-110
6-8
Light Red
Hurricane
3
945-965
96-112
111-130
9-12
Magenta
Hurricane
4
920-945
113-135
131-155
13-18
Light Magenta
Hurricane
5
< 920
>135
>155
>18
White
NOTE: Pressures are in millibars and winds are in knots where one knot is equal to 1.15 mph