Apparently, that's whenever FedEx doesn't want it to be delivered by 10:30 am. When contacted to find where our shipments of LIVE CORALS was, they said, "Due to thunderstorms at our Memphis Hub, deliveries are running late today". Here's the problem with that. My corals arrived here in St. Louis at 3 am and were put on a truck at 7:11 a.m. for delivery. The thunderstorms that are hitting Memphis can't affect delivery when the boxes are already on the truck here in St. Louis. AAARRRGGHHH That was almost 6 1/2 hours ago and they are already 3 hours late according to their Priority Overnight shipping rules.