Citizens should be cautious while diving and walking during or after a winter storm due to the potential for Black Ice. The slippery, hard to spot and potentially dangerous ice get created when rain and melting snow meets freezing temperatures. Because of their ability to freeze quickly, bridges and overpasses are prime locations. Areas of the ice are often practically invisible to drivers or people stepping on it. Thus the increased risk of accidents due to an unexpected loss of traction. Motorists who find themselves driving on black ice should stay calm and let the vehicle pass over it. Officials say Black ice is the main cause of slip and fall incidents days after a winter storm.