Ice Storms are very dangerous and can cause much damage and danger to the areas that they hit. Ice Storms are called such because of the large amount of freezing rain that fall from the sky to create them.
The weight of ice on the tree causes it to wilt.
They do not occur frequently because precise weather conditions are needed to form them. The storms can sometimes start with a top layer of snow that melts and drips onto something less than 32E°F and then begins to freeze again. When this happens it is very dngerous because the weight on powerlines, trees, ect. can cause them to collapse.
Thick coats of ice cover cars and streets after ice storms.Sources
http://www.ci.savannah.ga.us/cityweb/disasterinfo.nsf/5ae9bd7c8938f28a85256b88006d8e15/973ecbe69ed086d585256c2400535911?OpenDocument
http://farm2.static.flickr.com/1136/1119033982_42e2495b09.jpg
http://everydaycelebrations.files.wordpress.com/2009/05/ice-storm.jpg
