Significant tornado outbreaks and especially strong tornadoes are more likely occur within periods of activity lasting three or more days, according to a tornado expert. An examination of 30 years of US weather records found that an outbreak of 20 or more reported tornadoes had a 74 percent probability of occurring during a period of tornado activity lasting three or more days. During those same periods, a tornado rated three or higher on the Enhanced Fujita scale had a 60 percent probability of...
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/7...
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/7...