It rained like crazy here yesterday. Went out just awhile ago to get the egg ready to do steaks tonight. I decided to put fresh charcoal in it and start it up since it had been awhile since my last cook. Figured I'd get it to 400 for a little while. Got fire going good, shut the top and closed the bottom some. All of a sudden I noticed beads of water forming on just the top dome. At the same time the temp dove from 400 to just under 250. I opened it and the fir is nice and hot, no sweating on inside of dome. But I can't get temp back up. Anyone ever encounter this?