Hopefully I got all the big ones- I narrowed it down to a top ten of what I thought would get the most votes. I wasn't born yet for 1979 and was just an infant for 1983, so obviously I don't remember those two. But all the others I remember well.
Honorable mentions:
January 17-18, 1994
February 11-12, 2006
February 13-14, 2007
January 26, 2011
February 12-13, 2014
January 3, 2022
January 6, 2025
Edit 11/4/2025: Edited title (since it's now close to 50 years) and added two more recent honorable mentions IMBY.