As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE EN ROUTE GSO-DCA WEATHER RADAR STOPPED PAINTING WEATHER. CREW SHUT THE WX RADAR DOWN FOR 5 MINUTES THEN RESTARTED AND THAT DID NOT FIX IT. WITH THUNDERSTORMS AHEAD THE CREW CALLED DISPATCHER AND THEY BOTH DECIDED TO DIVERT TO ROA AWAY FROM THE THUNDERSTORMS TO A MAINTENANCE BASE. TO GET THE AIRCRAFT REPAIRED.