Winter '12 / '13 - Arctic Oscillation - Analogs

Analog years selected based on the smallest sum of square errors between current year/s monthly AO index and historical values since 1950.

Strongest analog year remains 2003 with the NOV update.
The same year is the top ranked analog for SOI...QBO...and NAO.

The 2x2 contingency table analysis suggests a 76% probability for meteorological winter/s AO to be negative.

Season-total snowfall at NEWxSFC Contest stations during Winter '03 / '04 totaled 999"...8" above period-of-record normal (PoRN).

AO during winter '03 / '04 averaged -0.983.  DEC/s AO of 0.265 was followed by -1.686 in JAN and -1.258 in FEB.