NASA's Tropical Rainfall Measuring Mission (TRMM) satellite provides a look at thunderstorms in three dimensions and shows scientists the heights of the thunderclouds and the rainfall rates coming from them, both of which indicate severity.
Powerful thunderstorms that created severe weather were more than 8 miles high.
NOAA's National Weather Service Storm Prediction Center received 18 reports of tornadoes occurring on April 3 over northeastern Texas. Some of these very destructive storms dropped softball sized hail as they passed to the south of the Dallas/Fort Worth area.
To see a simulated flyby from the TRMM satellite around these storms, visit: http://trmm.gsfc.nasa.gov/images_dir/tornadic_tstms_4apr12_0133_utc_radar_animated.gif (28 MB animated gif).
TRMM is a joint mission between NASA and the Japanese Space Agency, JAXA. NASA and JAXA are currently collaborating on the follow-on mission called the Global Precipitation Measurement (GPM) mission. The GPM mission will provide a new generation of satellite observations of rain and snow worldwide every three hours for scientific research and societal benefits.
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