I am new to this and tried my first smoke last weekend. A Boston butt and whole chicken things went bad from the beginning. I initially fired one whole webber chimney of kingsford blue bag charcoal. Heat was steady at 250 for about 15 minutes and then it dropped to below200 rapidly. The coals were red hot when I put them in and within 15 minutes they were dead. They did not burn out or dissipate. They just went out and cooled off leaving most of the charcoal remaining on the grate. So as my temp was falling I fired up another chimney and quickly put them in. Again, the same thing happened. Bottom line is I did this continually for 6 hours trying to get this butt cooked and went throu two bags of charcoal. The charcoal was bought at seperate stores so I don't think that was the problem. Had all vents open the whole time. It was unusually windy but from what I have read here that should have made it harder to keep cool. I am sue I did somthing wrong and am hoping some of the expert smokers here will help a greenhorn out. Any suggestions?