FLIR RAYMARINE A75 WiFi - Wave Information Symbols; Nowrad Precipitation Color Codes; Canadian Radar Precipitation Color Codes; Reflectivity Intensity to Rainfall Correlation

Wave information symbols
The weather application uses a range of graphics
and symbols to represent different types of wave
information.
Symbol Description
Wave height — Waves are
shown in 16 shades of color
from:
• Reds — Highest waves
• Greens — Intermediate
waves
• Blues — Lowest waves
Wave period — wave periods
are shown using shades of
blue, the darker the shade
the shorter gap between
successive waves. The wave
period detail can be accessed
by the context menu View
Data option.
Wave direction — direction
of waves is indicated by blue
arrows.
NOWRad precipitation color codes
NOWRad displays the type and level of precipitation:
Color code Precipitation type
Reectivity
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
Color code Intensity in mm per hour
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
Reectivity intensity to rainfall
correlation
You can use the table below to correlate reectivity
intensity in dBz to estimated rainfall in millimeters
per hour or inches per hour.
Reectivity
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
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.
Weather application (North America only)
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