After re-reading the January Outlook I posted yesterday, I realized that the post was somewhat convoluted.
Ok, it was alot convoluted!
As I ran through how I came up with the resultant composite for January, it hit me that the post read more like a Stanley Kubrick script than a straight-forward outline. So here we go one more time.
Have we had any Novembers and Decembers similar to this year when we look at the indices that describe the state of the ARCTIC, NORTH ATLANTIC, ATLANTIC AND THE PACIFIC? Yes.
PNA (Pacific Index) = 1970, 1973, 1994
AO (Arctic Index) = 1994
Dropping the AO a bit, we get these years =
1975, 1979, 1982, 1990, 1992, 1994, 2004, 2006
NAO (North Atlantic Index) = 1982, 1986, 1992, 1993
PDO (Pacific Ocean Temps) - September-December averages similar to this year = 1999, 1994, 1961, 1955, 1950
AMO (Tropical Atlantic) - October-November drops similar to this year =
The year that matches up the best (NOV and DEC) = 1994
Let's assume (BIG ASSUMPTION) that January's indices will drop to levels that are more conducive for "typical winter weather"--not huge drops but just enough. That is the ARCTIC DROPS SLIGHTLY NEGATIVE, THE PACIFIC ALLOWS THE TROUGH TO PUSH A BIT FURTHER EAST AND THE NORTH ATLANTIC ALLOWS FOR MORE NORTHERLY STORMS, WE GET THESE JANUARY YEARS FOR OUR COMPOSITE:
1987 (El NINO), 1963 (WEAK LA NINA)
Since the PDO (pacific ocean temperatures) are at the lowest since December of 1961, the years 1955 and 1950 have to be factored more heavily.
That gives us: 1987, 1963, 1955, 1950
Here are the composites for these years weighting 1987 and 1963 highest because they match this year's daily indices the best.
Remember that there are no PERFECT MATCHES.
First NOVEMBER'S match then JANUARY of 2012.
BTW, My January snowfall outlook: 14 inches!
STORM TRACKS FOR JANUARY