Right now it's foggy and 30 degrees. The weather people are saying "be careful of black ice." Now, it's going to be 39, in 2 hours, when the ride starts, but these conditions are what got my friend a broken hip. And, the ride starts very close to where his crash happened (I know, just coincidence). It will be much nicer, after lunch, close to 50. Am I crazy to be worried?