Uncertainty, and Sure Bets

My sister-in-law is trying to make it here over icy roads for a little Christmas lunch before we all head out of town. Then she has to make it back home before the storm hits. Will she? My son will be joining us this afternoon. Hopefully he will get here without incident. He WILL stay here with us overnight. Some kind of storm WILL hit us late this afternoon/evening and overnight. Will it bring the high winds, snow and freezing rain that has been predicted? The Seahawks and the NFL say there WILL be a football game tomorrow at Qwest field. Will they play in snow or rain, wind or calm? We ARE scheduled to fly out of Seatac Sunday at 2:50. We plan to take a taxi the two miles from home to the airport. Will a taxi come for us through ice or snow? Will we have ice or snow? Will our flight be on time, delayed, or cancelled? I'm a bit on edge at the moment.