01 Jun '11, 12pm

Scientists seek insights by examining satellite view of storm fronts that spawned April's shocking tornado outbreaks

The U.S. experienced unprecedented tornado activity throughout the month of April 2011. The NOAA Storm Prediction Center received 875 tornado reports during that month alone; 625 have been confirmed as tornadoes, so far. Many of these storms were concentrated during 7 different major outbreaks, mostly in the Southern U.S. The largest of these outbreaks occurred during April 27-28, leaving over 300 people dead as over 180 storms were reported from Texas to Virginia. This animation shows the GOES-East infrared imagery from April 1-30, along with the locations of each tornado that formed during the time (symbolized as red dots). Though tornadoes cannot actually be seen by GOES, these satellites are instrumental in being able to detect the conditions associated with their formation. As the resolution of GOES has increased with each successive satellite series, so have the warn...

Full article: http://dotearth.blogs.nytimes.com/2011/06/01/closeup-apri...

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earthobservatory.nasa.gov 01 Jun '11, 6pm

In the afternoon and evening of May 22, 2011, a supercell thunderstorm traveled from southeastern Kansas into southwestern...