ATL 4" snow/IP dates: 3/11-14 is 1 of 3 major clusters

[LarryWx]

Here are the dates for which I've found a 4" plus official ATL snow and/or sleet event since 1879 (24 of them or about one every five years):

DEC: 2, 5-6, 11-12
JAN: 2-3, 7, 7-8, 12, 18, 18-19, 23, 28, 29-30
FEB: 10, 11-12, 11-12, 15, 15-16, 17-18, 21, 23
MAR: 11, 13, 14, 24

Notice the three major clusters (my def. of major is three within four days):

FEB 10-12, FEB 15-18, and MAR 11-14.

So, 3/11-14 has been just about as active a four day period for 4"+ snows as any throughout the winters going back to 1879. Notice that I found ZERO 4"+ snow/sleet events since 1879 for the dates 2/24-3/10 vs. THREE for 3/11-14! So, PERHAPS there's some kind of unexplained climo factor contributing to this 3/11-14 clump as opposed to total randomness.

So, although it is far from likely, the cold pattern/-NAO/nondry pattern/waning weak El Nino/these stats tell me to concentrate on the 3/11-14 period for perhaps ATL's last decent shot at a snowstorm. This period is still a bit too far out for any kind of reliable modeling of specific storm tracks.

[yoda]

Good post Larry. March 8-14 looks to be an interesting time period for all in the East to watch per the models. Excellent research.