Storms and wildfires are causing problems across the U.S. - Jun 12th, 2013 - National
— Forecasters warn there could be some very heavy weather today from Iowa to Maryland.
A gigantic line of powerful thunderstorms could even spawn an unusual weather event called a derecho which is a massive storm of strong straight-line winds spanning at least 240 miles.
— C-130 cargo planes are expected to head out today to help fight a Colorado wildfire that's burned up to 60 homes northeast of Colorado Springs.
Fire officials say six helicopters and an air tanker already are at the scene of the blaze that's forced some 6,400 people to evacuate.
Cooler temperatures and calmer winds overnight have helped firefighters battle at least four wildfires in the state.