According to experts, this season, there is reason to expect a large number of natural anomalies. Paul Douglas, meteorologist from Minnesota, said that severe storms are not uncommon, and rainfall, somehow deviant. Douglas noted that the atmosphere is literally "live", and the jet stream winds are stronger than it was any other spring on his memory. Scientists believe that the summer 2011 will be one of the first three seasons of powerful tornadoes.
The weather almost throughout the world affected by the climate phenomenon La Niña events (La Nina). Temperature background, formed the North-West, North-East and the northern plains of the United States, as well as in parts of Europe and Asia this winter in many of its severity required La Nine. In view of the impossibility to predict tornadoes and other major disasters, Paul Douglas urged not only Americans, but people from other regions who are not familiar with tornadoes, have an action plan in case of a collision with disasters.