Will be interesting to see how the day recovers,
When they lifted the ground stop, at least at DTW it looks like to focused on getting the flights that were "on-time" out first before getting into the delayed flights from earlier in the morning.
The DTW flights around 8:30 to LAX, MCI, and MIA pretty much pushed on-time meanwhile the 6-7am departures were going on 3 hour+ delay.

So for example DL 794 DTW-LAX B753/N596NW is on-time, and down-line today operates DAL802 LAX-DTW, DAL1653 DTW-ATL,

So some flights are going to be on-time, some are going to be outright cancelled, and others with significant delay.