Weather Systems
Environment Canada investigating probable tornado in Ontario's Kawartha Lakes region
Tornado victim finds lost dog on live TV
Storms cut power in southern Ontario, severe risk continues Wednesday
Oklahomans share stories of survival, confront tornado devastation
A typical thunderstorm is about 15 miles in radius and lasts for approximately half an hour. Lightning from a thunderstorm can be witnessed as far as 10 miles away outside its radius.

