Unusual shaped ice with an even more unique name has been spotted around Portland after sub-freezing mornings.

Picture of rime ice in Campbellsburg ... Also, water vapor (not droplets) are the source of moisture, so frost forms on clear cold nights.

The advisory was for Western Chester, Eastern Chester, Western Montgomery, Eastern Montgomery, Upper Bucks and Lower Bucks.

(AccuWeather/Jesse Ferrell) That's different than rime, sometimes called rime ice. Rime forms when tiny, near-freezing water droplets, usually from thick fog and clouds, attach to the surface of a ...

The criteria needed came together this week, resulting in the semi-unusual frozen phenomenon called "hair ice" showing up ...

While freezing fog can be beautiful, clinging to trees and other surfaces to create picturesque rime ice, it can also cause ... so frost forms on clear, cold nights. Like regular fog, one main ...