NIDS (NEXRAD Information Dissemination Service) data consist of a variety of high resolution
radar products from WSR-88D doppler
radars. Data are updated frequently (about every six minutes).
Enter a three-letter station identifier, select type NIDS product, observation date/time, image size, single image or 2-hour GIF, Flash, or JSANI loop, zoom factor, and image
center location. This center location can be specified by using either a 3-letter radar identifier, an ICAO identifier, a WMO number, or latitude,longitude (e.g. "ENX" or "KALB" or "72518" or "42.75,-73.80").
On this site, you can retrieve products back to about 15 days. If you don't set a date/time, zoom factor, or center location, you will get the latest observation centerred on the radar site with default zoom factor.
Some products may not be available for the selected station.
For loops, the date/time selected will be the approximate end time of the ~1.5 hour loop.
Blue lines on the maps depict interstate highways.
The "clickable" map options have less time resolution on loops, no capability to change size or center point of the image and no ability to go back to see data anytime over the past several weeks, i.e. less overall flexibility than from this page.