The Tripod Days schedule is here, inaugurating the Nenana Ice Classic 2015.
The latest ice-out ever was May 20th, 2013, covered here. The earliest was April 20th, 1940. In 2014 ice-out was pretty early, on April 25th.
You can watch for the ice-out on the Nenana Ice Cam, which is updated every 30 seconds, here. Next week you can watch this cam as the tripod is installed on the frozen Tanana River. A raffle is held awarding a big jackpot to the closest guesser of the ice-out. When the ice goes out, the tripod goes whoosh! with the ice. People have been known to park in the parking lot on the shoreline and amuse cam-viewers with their antics in the runup to the ice-out.
