In the first week of January 2007, it became clear the temps would spike up over marathon weekend. The 2007 race was one of Disney's worst handled events by far. Rather than make efforts to 'over supply' aid stations, all that we received was make sure you include PowerAde at the aid stations. It was a rather underwhelming approach to what was a tough weekend to run 26 miles. The race ran out of liquids at stations though the last half of the race... Part of the issue was the runner's fault. I know I took at least 3 cups of liquids at most stops after a couple hours into the race. Water and sport drink in and one over the head. If everyone used water at that pace, then one could not be surprised that the race had issues. But Disney is a master of logistics so this simply could not happen... but it did. If the NOAA long range forecast holds, the race day temps will be normal to warmer than average. Way back, there was a piece in Florida Running & Triathlon by Keith Brantly former Olympic marathon team member and he gives a little piece of advice. In the section he talks about watching the weather and if the start temp is >60 consider changing you race strategy. Mr. Brantly gives a combined number , greater than 130, for the heat and humdity that makes it less likely that one may run fast. His example is a temp of 55 and humidity of 80% to get 135 which would be high enough that you may need to adjust your race and hydration strategy. Race strategy would be something like slowing 15-30 seconds a mile for the combined temp of 135-140, 30-45 seconds for the 140-150 and even slower as it gets higher. I finished the 2007 marathon about 70 minutes slower than I could have run the race on a 'normal' day. That equates to a little over 2 minutes per mile slower. I did not start off that slow, but after a 3 miles stretch of little fluid, I had to pull up. I am reminded of this from an email I received today from a half I am running this weekend. The RD at this half is doing the right thing in advance of the day. He is even going as far as opening the course linger than advertised. Here is the email For the record, Disney has a Temperature Risk flag system. It used to be in the program and instructions but I am not able to lay my hands on the system. I do remember black flags were bad. As a general rule, if you see flags flying at the first aid stations (not the white with blue cross on top of the tent, but solid colored in front of the tents) assume that the weather is warm enough to take a little extra care in keeping cool and hydrated. Be prepared if you see that the weather looks warm over race weekend. While the race must provide a safe and well stocked course for you, you are ultimately responsible for your health and safety while out there. Train hard and enjoy the race.