|
Approximate Rainfall Rates
The radar echo intensity level provides an approximate indication of rainfall rate.
The following values can be used as a general guide but they are not always accurate.Source the Austrlaian BOM
|
Level
|
Colour
|
Approx. Rainfall
Intensity (mm/hr)
|
|
0
|
clear
|
Not visible
|
Under 0.2
|
|
1
|
|
Off-white
|
0.5
|
|
2
|
|
Sky-blue
|
1.5
|
|
3
|
|
Light Blue
|
2.5
|
|
4
|
|
Blue
|
4
|
|
5
|
|
Light Cyan
|
6
|
|
6
|
|
Cyan
|
10
|
|
7
|
|
Dark Cyan
|
15
|
|
8
|
|
Yellow
|
20
|
|
9
|
|
Yellow-orange
|
35
|
|
10
|
|
Orange
|
50
|
|
11
|
|
Orange-red
|
80
|
|
12
|
|
Red
|
120
|
|
13
|
|
Dark Red
|
200
|
|
14
|
|
Maroon
|
300
|
|
15
|
|
Dark Brown
|
over 360
|
|
