A 10oz tarp comes in handy in this situation. If you're paranoid about critters sniffing around the tent, a tarp in location away from tent will work! I've done this before in Virgina Highland. Someone in the group bought a large tarp for all us to gather under while it storm. Then when it came time to sleep we went to our own shelters.
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It is one of the blessings of wilderness life that it shows us how few things we need in order to be perfectly happy.-- Horace Kephart