The State

This image of the storm system that generated the F-4 tornado in Moore, Okla., was taken by NASA's Moderate Resolution Imaging Spectroradiometer (MODIS) instrument aboard one of the Earth Observing System (EOS) satellites. The image was captured on May 20, 2013, at 3:40 p.m. EDT as the tornado began its deadly swath. JEFF SCHMALTZ — NASA/Goddard/MODIS Land Rapid Response Team