Freezing Rain or Rain Category

                  57%    of the total events were freezing rain.

40%    rain

  3%    measurable snow w/rain

 30      total events


Principal forecast issues


Tentative findings

·         Significant icing at tree top level due to sustained cold air advection and colder temperatures just above ground

·         Slowly modifying and very shallow arctic airmass

·         Preexisting very cold ground (rare in central North Carolina)


Vertical temperature profiles associated with “freezing rain or rain” category


Significant icing associated w/ a shallow but very cold arctic air mass