Radar data and derived products are available at no cost through the National Climatic Data Center (NCDC). The system from which these data are collected is the Weather Surveillance Radar-1988 Doppler network (WSR-88D Radar) which began operation at a few sites in 1991 and now comprises numerous Weather Surveillance Radar sites throughout the United States and select overseas locations.
Level II data are the three meteorological base data quantities: reflectivity, mean radial velocity, and spectrum width. From these quantities, computer processing generates numerous meteorological analysis products known as Level III data. Level II data are recorded at all NWS and several select CONUS DOD WSR-88D sites. Level III products are recorded at most NEXRAD sites. The data are sent to the National Climatic Data Center (NCDC) for archiving and dissemination.
Detailed information can be found at the NEXRAD Radar Operations Center. Radar details
General information NCDC Radar resources. NCDC Resources
Download viewer and tools Java Application to view all NEXRAD Products in NCDC Archive (1000 tb). Provide multiple map overlays, image export and animation. Web Map Services (WMS) background maps. (Aerial Photos, Topo Maps, Shaded Relief, LANDSAT7, Landcover, etc…). Multiple data export formats. Save images and movies (gif, jpeg, png, quicktime and more) Data may also be displayed in GeoTools (Google Earth) based Viewer.
Locate Radar Station Click on the desired station and input date and time to verify availability. Once the list of available data has appeared select the desired date and press the "create Graph" button. Once the availability has been confirmed click on the "OrderData" link. Enter your e-mail information and select the desired date and time.
HDSS Access System
Data Download Tutorial
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