NOAA predicts a busy Atlantic tropical storm season, with a likelihood of seven to 11 hurricanes, three to six of them major.Unusually warm ocean waters and favorable atmospheric conditions are expected to create an above-average number of tropical storms and hurricanes in the Atlantic and Caribbean this season, national weather forecasters predicted.    

David Andra of the National Weather Service was not only monitoring the deadly tornado but also checking up on his family living in Moore

Chief forecaster David Andra for the National Weather Service in Norman, Okla., was tracking the storm as it approached Moore, Okla. -- where his daughter's family lives. Andra sent the warning for people to get to shelter. Mark Strassman shares his story.

David Andra of the National Weather Service was not only monitoring the deadly tornado but also checking up on his family living in Moore

CAPE CANAVERAL, Florida (Reuters) - A key satellite positioned to track severe weather in the eastern United States has failed, just as the 2013 Atlantic hurricane season is about to start.