Tornadoes and violent storms have raked through the Dallas area, crumbling the wing of a nursing home, peeling roofs from dozens of homes and sending truck rigs into the air like footballs.

Groups have drafted a plan to separate the Great Lakes from the Mississippi River watershed in order to stop the spread of Asian carp.

Three Canadians have been rescued at sea after a storm left their sailboat badly damaged 700 kilometres off the coast of Mexico.