The Environment Canada 500mb analysis valid 3am Saturday Dec 31 2011 shows the cold closed low just west of Nome, with a weaker center near McGrath. East of 150W there are more clouds than clear. so in spite of a cold airmass, valley temperatures are not excessively cold. To the west, more clear than clouds, and it is consequently colder. 8AM Saturday temperatures include 53 below at Huslia, 48 below at Kaltag and 36 below at Fairbanks Airport.
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