...made the crater rim, but not the summit due to bad weather on 12/21. the previous 2 days, the weather was beautiful... clouds rolled in around 12:00 and 4:00 each day but only stayed for an hour or so each time. however, on the 21st, they rolled in at noon as usual but never left and weather got much worse. had to pause occasionally and let the air clear to see the descent route. no clue what January weather will be like... unpredictable for sure, but not so bad as to eliminate a summit bid if you are prepared. next year when i summit, i'll take stakes & flags to mark the route between the summit and 16,500', screws & slings, and a bivy... and probably won't even need them! they would have been nice to have this time, though. good luck and happy new year.