May cause structural damage. Turbulence reports should include location, altitude, or range of altitudes, and aircraft type. It should also include whether in clouds or clear air. Rate of accumulation slightly greater than sublimation. It does not present a problem if this equipment is used.
Immediate diversion is necessary.
Icing reports shall include location, altitude or range of altitudes, type aircraft, air temperature, intensity, and type of icing. Rough, milky, opaque ice formed by the instantaneous freezing of small super-cooled water droplets. Glossy, clear or translucent ice formed by the relatively slow freezing of large super-cooled water droplets. A combination of rime and clear. Urgent Tornadoes, funnel clouds, or waterspouts.