Consider some of the following chilling facts:
* Using satellite data, the University of Wisconsin detected surface temperatures as cold as -73 below zero around the town of Arctic Village in northeast Alaska
* Fairbanks hit -50 on January 28, and -51 on January 29, the first -50 degree readings there since 2006
* Fairbanks dropped to 40 below on 16 different days during January, the greatest number since 1971 (hat tip: Jim Cantore)
* The average low in Ft. Yukon, 145 miles northeast of Fairbanks, has been -35 (Source: Our Amazing Planet)
In addition to cold, snow socked Prince William Sound earlier in the month, paralyzing Valdez and Cordova. Anchorage has already received 92” of snow this winter, compared to an average of 74.5” for an entire season.
The cold, snowy pattern has arisen from a persistent storm track through the Gulf of Alaska, bringing an onslaught of snow events to the coastal part of the state and record-shattering cold in the interior.
This pattern, known as the +EPO (characterized by low pressure over Alaska, the Gulf of Alaska, and the Bering Strait) has actually helped keep Arctic cold out of the lower 48. As of today, a paltry 19% of the Lower 48 had snow on the ground compared to 42% last year on January 31.
There are some signs this pattern will, at least temporarily, break down. As the NWS Office in Fairbanks wrote earlier today:
AS THE MONTH OF FEBRUARY BEGINS A LARGE SCALE PATTERN CHANGE WILL GET UNDERWAY...BUT IT WILL STILL BE SEVERAL DAYS BEFORE THE PATTERN CHANGE IS COMPLETE.
(Note: An apparent reading of -79 below zero reading at Jim River Maintenance camp - very close to the all-time U.S. record low temperature of -80 in Prospect Creek from 1971 - was deemed bogus by the National Weather Service. The observing station was not up to standard and the reading may have been caused by a failing battery it said. For more, see detailed analysis from the WeatherMatrix blog)