Weather Systems
Heavy rain drenches BC, Alberta. Rainfall warnings in effect
Tornado touches down in front of Denver travelers
Stormy weather in the Prairies
NASA on the hunt for killer asteroids
Icebergs form when chunks of ice calve, or break off, from glaciers, ice shelves, or a larger iceberg. Icebergs travel with ocean currents, sometimes smashing up against the shore or getting caught in shallow waters.

