We live about 20 minutes from Galveston in Kemah. We took a ride down to the island just for something to do and I wanted to show my husband where we'll be boarding our dog for our upcoming cruise (he wanted to calculate drive time). Anywhoo, we passed the terminals at 5-ish and boarding for both the Disney Magic and Crown Princess was in full swing. We stopped for dinner at Rainforest Cafe at the San Luis Resort area at 6 or so. When we left the restaurant the sun had set and the fog had definitely increased in density during the time we were eating. Especially on the Gulf side of the island, it was THICK. We passed back by the cruise terminals on our way off the island and I noted the time as 7:30. People were still arriving at the terminals, parking, etc. so boarding was definitely still going. We could see the glow of the Funnelvision from Harborside Dr. but couldn't really tell what was on it. The fog on this side of the island wasn't as dense as the Gulf side but it was still pretty darned bad. We figured the ships weren't leaving anytime soon with fog like that. It was really bad. DCL's advisory on their website requested all embarking passengers arrive by 9 pm at the latest. Everything we'd seen jived with that. At 11:30 pm before I went to sleep I checked the Galveston webcams again. The fog was not improved from what we'd seen when we left the island 4 hours earlier. I checked MarineTraffic.com and the Disney Magic still showed in port at that time. I don't always trust Marine Traffic 100% because sometimes we can see the ship in port but they don't show that. In the webcam the Crown Princess was still in port so it was impossible to see the Magic regardless of if she was there or not. Sunday morning when I checked the last track of the Disney Magic before it went out of range on Marine Traffic it looked like it pulled out around 3 am, maybe a little earlier or a little later. Can't remember exactly. Hubby was up at 5 am and checked the webcams. He said shortly after 5 both the previous ships were gone and he watched the Carnival Magic sail into port. No fog at all. Not surprising. We had a 30 degree temperature drop from Saturday night to Sunday morning. At some point the temperature dropped enough for the fog to dissipate. Just not sure what time it was. Was after 11:30, I can tell you that.