Icing is a well known hazard that effects the performance and overall safety of aircraft in flight. This is a study of over 60 icing events throughout Alaska during the 2015-16 cold season where multiple PIREPs were collected reporting moderate or greater icing occurrences, freezing rain or freezing drizzle, or severely downgraded aircraft performance due to icing conditions.
The purpose of this study is to look at the synoptic and mesoscale features associated with the events and use this to aid forecasters in the future forecasting of aviation hazard products such as AIRMETs and SIGMETs. A detailed analysis of parameters including relative humidity with respect to ice and temperature profiles, position of frontal features, maturity of fronts, and the temporal evolution of these features will be presented. The onset and cessation of these icing events will be examined with these features in mind.
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