As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 4447 - DURING CRUISE FROM ATL-VPS, AT APPROXIMATELY 30,000 FEET, THERE WAS AN ILLUMINATING GLOW FROM THE ANTI-ICE VEIN, FOLLOWED BY A LOUD SHATTERING OF THE NR 2 WINDSHIELD. THE CREW COMPLIED WITH THE QRH AND DIVERTED INTO MGM, AFTER DECLARING AN EMERGENCY. THE AIRCRAFT LANDED SAFELY IN MGM. MAINTENANCE REMOVED AND REPLACED THE NR 2 WINDSHIELD IAW CRJ AMM 56-11-01. OPERATIONAL CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)