Weather Radar Edit | AL . . . . . Velocity : Velocity radar weather technology evolved from WWII military radar, with accidental weather discoveries leading to early systems like WSR-57, but it was the development of Doppler radar by the National Severe Storms Laboratory (NSSL) in the late 1960s/early 1970s that allowed scientists to measure storm wind movement, revolutionizing severe weather forecasting by detecting features like tornado vortex signatures before they hit the ground, culminating