Raymarine C140w - Manual (Page 184)

NOWRad precipitation color codes
NOWRad displays the type and level of precipitation:
Color code Precipitation type 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
184 C-Series Widescreen user reference