Well that was a refreshing morning! Long story short: MSP is going to get 8-12" of snow and WINDS of 40 mph tomorrow. Delta says to DH he shouldn't count on getting into/thru Minneapolis in a timely manner on the way to DD's. Redo! About 9 am I suggest he look about getting out today ahead of the storm instead of afterward and it worked. He was able to get on the 2:45 this afternoon, 4 hour layover in MSP which is a lovely clean civilized airport, then off to Baltimore. Stay the night in a hotel with an airport shuttle, then back to BWI via hotel's shuttle tomorrow morning to pick up the shuttle to Frederick MD. Done! Storm outrun. Trip knot ruined.
Stay warm and dry folks.