A co-worker got stuck Wed/Thu trying to get out of San Antonio and over to KATL for his connecting flight on Delta. His flight was epic delayed. He ultimately ended up booking a ride from DFW to CMH direct via AA and renting a car from San Antonio to DFW and driving thru the night to catch it. Anyway, during his efforts to secure a flight home he was told that part of the problem was that A/C departing ATL during a lull in all the storms were required to reach a point 30 NMs distant from the field before the next AC was allowed to depart - thereby compounding the delays. What's up with that?