Edit:
NVM. Thought the TT Icon maps had a ZR/IP color key. They do not. So yeah, ICON may be quite sleet/icy for a lot of places, even though it just shows the green & blue precipitation colors.
NVM. Thought the TT Icon maps had a ZR/IP color key. They do not. So yeah, ICON may be quite sleet/icy for a lot of places, even though it just shows the green & blue precipitation colors.