Working link: https://www.fly.faa.gov/ois/oisedit/adv_oisedit_dis?number=1...

effective 2:54PM - 10:30PM central time

   ATCSCC Advisory
   ATCSCC 111 DCC 11/13/2026 NATIONAL GROUND STOP
   MESSAGE:
   
   EVENT TIME: 13/2053 - 14/0400
   DUE TO EXTRAORDINARY CIRCUMSTANCES AND FOR REASONS OF SAFETY.
   ATTENTION ALL AIRCRAFT OPERATORS, BY ORDER OF THE FEDERAL AVIATION
   COMMAND CENTER ALL AIRPORTS ARE GROUND STOPPED. ALL DEPARTING
   TRAFFIC SHOULD REMAIN GROUND STOPPED UNTIL FURTHER NOTICE. INBOUND
   INTERNATIONAL FLIGHTS WILL BE MANAGED ON A CASE BY CASE BASIS.
   
   EFFECTIVE TIME:   132054 - 140430
   SIGNATURE:   26/11/13 20:54

On an inbound international flight and the pilot made a PA announcement a few minutes ago to this effect.

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