U.S. composite radar image
| USA composite U.S. radar summary (from the National Weather Service). The sequence is a movie loop of the conditions over the past six hours, taken every 30 minutes (be sure to update to get the latest image). The false color map shows red where the radar reflectance is large, generally in locations of heavy precipitation (rain, snow, or hail). White indicates no radar returns, and gray indicates no data from that region. |
Credit: National Weather Service
For more info: http://www.nws.noaa.gov/data.html