KU (Kocin-Uccelini) is defined by the snow amounts over the number of people impacted. KU has a “near miss” section for storms that impacted inland areas but with a few tweaks would have been massive coastal impacts, like 3/14/17. Blizzard of 96 had 20”+ amounts for every major city except Boston with 18” and had a huge overall area with those amounts, so it’s rated a 5. A storm like 12/30/00 had major impacts in NYC but not many other heavily populated areas so I think that’s rated just a 1.