1. I'll second the advice to
never eat, never never cook, never bring food, absolutely never store food in a tent. Forget about Grizzlies - mice, squirrels and other small rodents have a good sense of smell too, and will chew thru your tent in a matter of seconds. Had rabbits ruining mesh in one of our tents (kids have learned their lesson). The "threath level" is higher in parks and campgrounds, where wildlife isn't that wild anymore. We carry food in a bear bag (kevlar, secured to the bike.).
2. We usually, whenever possible, take rain as god's way to tell us that we should support the local hospitality industry. (In our case, a dark cloud is enough
3. Caught in severe downpours a few times. Never bothered to cook a hot meal. Would rather survive on hard boiled eggs + GORP. We typically carry a 2+ days supply of hand-to-mouth food items. + several Clif bars in our handlebar bags.