NOAA / NWS: Doppler Radar: RIDGE (Radar Integrated Display w/ Geospatial Elements)
The most effective tool to detect precipitation is radar. Radar, which stands for RAdio Detection And Ranging, has been utilized to detect precipitation, and especially thunderstorms, since the 1940's. Radar enhancements have enabled NWS forecasters to examine storms with more precision.
Web Site: NWS Doppler Radar
[Click an area to activate the RIDGE (Doppler Radar) Map Viewer
The enhanced view of NWS Doppler radar images allows interactivity with the display providing you with the ability to customize the way you "look" at weather. Called RIDGE (Radar Integrated Display with Geospatial Elements), the radar image can be layered with geospatial elements such as topography maps, highways, state/county boundaries and weather warnings. While the radar image itself is the same as in the standard version, the geospatial ability in the enhanced version allows for the use of several features to aid the viewer. Both "looping" images and "current image" have unique tools to help provide more information than what is available in the standard version of the NWS Doppler display.
Self-quizzes about Doppler radar
Contact information for support using Doppler radar and RIDGE