based on http://photolib.noaa.gov/lb_images/nssl/images/big/nssl0026.jpg
description from http://photolib.noaa.gov/lb_images/nssl/nssl0026.htm :
NSSL's first research Doppler Weather Radar. Radar dish in the foreground Triangular panels of protective fiberglass radar dome are in the background 30-foot diameter 
Photo Date: December 1971
Credit: NOAA Photo Library, NOAA Central Library
