UPDATE: Here are the 1-, 2-, 3-, and 6-hour recurrence intervals for Central Park. While 3.15" in 1-hour is the most headline worthy, the 2-, 3-, and 6-hour values are even rarer events (500-years; 0.2% chance per year). pic.twitter.com/rgj5Tn8TDF

— Brian Brettschneider (@Climatologist49) September 2, 2021