I flew on DL5104 (ATL to MKE) this morning. This was the only flight on my itinerary; I did not have any connections. While the flight was delayed by deicing, we did arrive in MKE well before 11 AM CST. Now, at 7:55 PM CST (nearly 9 hours later), I'm logged into my account at delta.com. When I look at my upcoming itineraries, this mornings flight (DL5104) is still listed. Next to it is the message "Flight delay may cause a misconnect" .

At the bottom, under all my itineraries, there is another message "There has been a change affecting one or more of your flights. Your itinerary has been updated, but it may cause you to miss at least one connecting flight during your trip."

Both messages are highlighted in yellow.