NOWRad precipitation color codes
NOWRad displays the type and level of precipitation:
Color code
Precipitation type
Reflectivity Intensity
Light green
Rain
(15 to 19 dBz)
Medium green
Rain
(20 to 29 dBz)
Dark Green
Rain
(30 to 39 dBz)
Yellow
Rain
(40 to 44 dBz)
Orange
Rain
(45 to 49 dBz)
Light red
Rain
(50 to 54 dBz)
Dark red
Rain
(55+ dBz)
Light blue
Snow
(5 to 19 dBz)
Dark blue
Snow
(20+ dBz)
Light pink
Mixed
(5 to 19 dBz)
Dark pink
Mixed
(20+ dBz)
Canadian radar precipitation color codes
Canadian radar shows the intensity of precipitation for Canada.
Unlike NOWRad, Canadian radar does not show the precipitation
type.
Color code
Intensity in mm per hour
Transparent (nothing shown at very
low precipitation)
0.00 to 0.20 mm/hr
Light green
0.21 to 1.00 mm/hr
Medium green
1.01 to 4.00 mm/hr
Dark green
4.01 to 12.00 mm/hr
Yellow
12.01 to 24.00 mm/hr
Orange
24.01 to 50.00 mm/hr
Light red
50.01 to 100 mm/hr
Dark red
100.01+ mm/hr
Reflectivity intensity to rainfall correlation
You can use the table below to correlate reflectivity intensity in dBz
to estimated rainfall in millimeters per hour or inches per hour.
Reflectivity Intensity
Rainfall (mm/hr)
Rainfall (in/hr)
5
0.0749
0.0029
10
0.1538
0.0059
15
0.3158
0.0123
20
0.6484
0.0253
25
1.332
0.0519
30
2.734
0.1066
35
5.615
0.219
40
11.53
0.4497
45
23.68
0.9235
50
48.62
1.8963
55
99.85
3.8949
60
205.05
7.9975
65
401.07
15.6424
70
864.68
33.723
75
1775.65
69.252
80
3646.33
142.21
85
7487.83
292.03
Reflectivity Intensity
Rainfall (mm/hr)
Rainfall (in/hr)
90
15376.51
599.69
95
31575.91
1231.46
100
64841.98
2528.84
105
133154.6
5193.03
110
273436.4
10664.02
Selecting weather graphics
From the weather application:
1. Select
Menu
.
2. Select
Display Graphics
.
The display graphics list is displayed.
3. Select each graphic you want to Show or Hide.
4. Selecting a graphic will switch between Show or Hide.
Note:
The Wind Vector graphic options are Arrow or Barb.
Using the weather application (North America only)
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