The data used in the study came from radar stations in Cleveland, Ohio; Grand Rapids, Michigan; and Green Bay, Wisconsin, collected in spring 2010 - 2013. (sciencedaily.com)
Even the National Weather Services Doppler weather radar station on the island has been destroyed. (vox.com)
These missile sites would receive initial targeting information from an early - warning radar station at the Mill Valley Air Force Station on Mt. Tamalpais; with the help of information from the radars and computers, the missiles would prepare, if needed, to launch. (nps.gov)