Originally Posted by
Herb687
Was the ground stop in effect for all departure airports?
If the snow was expected to be over and the airfield cleared in an hour, it's possible the FAA might have only stopped traffic originating from Minneapolis (ZMP) and adjacent ATC enroute center airspaces like ZAU, ZDV, ZKC.
I've also seen carrier specific ground stops. Any chance it was only DL flights?
As best I could tell from the FAA site, it was for most of the country. There were a lot of those “Z” codes and the map had most of the country highlighted. Also no mention of specific carriers.