Slide 85 of 95
Doppler Radar allows forecasters to see inside a thunderstorm and detect conditions that precede the development of a tornado or indicate a high probability of damaging thunderstorm straight-line winds and large hail. Doppler Radar computer algorithms provide continuously updated estimates of rainfall within 125 miles of the radar site. These real-time rainfall estimates, when combined with information on soil wetness and runoff potential, give meteorologists valuable information concerning flash flood potential.
WSR-88D Doppler radar tower and antenna. (NOAA/NWS)