If you're out there that long you should start with a waterproof hat. I know that they might not look that good but who cares on a day like that. Head or neck warmer to keep the water from running down your neck. Then have something waterproof on your upper body. A good, still original color striped coat or some waterproof jacket under your long sleeve striped shirt. Then have some kind of warming undergarment on your legs. Waterproof or not just something to keep some heat in your legs so that you don't pull a hamstring. Extra socks. One old guy around here even puts plastic bags between layers of socks to keep his feet dry. Waterproof gloves. Mine look like they are made from the same material a wet suit might be made from.
Better yet, have someone claim they saw lightning in the area and call the games until a better day.
