Effective on or about December 16, the display of radar date on NWS websites will change. The use of Flash will be discontinued, and the display will take on a new look and feel. The display is optimized for both large and small screens.
You can try out the new radar display at: https://preview-radar.weather.gov/
An online FAQ and brief tutorial are available: https://www.weather.gov/media/jetstream/doppler/Radar2Presentation.pdf .
The Service Change Notice document is also available.