On 2005-12-15, Jim Carter wrote:
essentially: "is forecast icing the same a known icing"?

That's the wrong question, because the rule says "known icing conditions"
which starts many arguments when people parse it as "known icing" when
in fact it is "known ... conditions". The conditions are present more
than the actual icing (perpetually in the winter in the PNW).

--
Ben Jackson

http://www.ben.com/