
Here's the NOAA-19 Polar orbiter infrared image from 2pm AST Wednesday, showing cold air pooled in the valleys and clouds south and east of Fairbanks.
A few more record lows have been registered in the Fairbanks area, including 37 below at UAF West Ridge and 46 below at North Pole. This is not the coldest weather so early in the season. In 1989 a similar cold snap produced a low temperature of 46 below to North Pole and 44 below at Eielson AFB on November 13th.