As we know, an Airmet Zulu will be issued for moderate icing. After further research, I have found this to be particular confusing. Say an Airmet Zulu is issued for the surface-10,000'msl. The OVC base is at say 5,000'msl and the surface temperature is 60 degrees farenheit with light rain showers in the area. Now, where are we going to find the icing? In ANY visible moisture(clouds/rain)? ABOVE the freezing level? If we are flying below the freezing level but still in visible moisture(clouds/rain) could we still pick up icing? Do supercooled water droplets or freezing rain get mentioned in the specific airmet?
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