[OFFICIAL] Boston has broken the highest ever recorded tide since 1921. New Record: 4.88' MHHW (or 15.16' MLLW) on January 4th, 2018. Old Record: 4.82' MHHW (or 15.10' MLLW) during the Blizzard of '78. https://t.co/7qZNHVm0y5

— NWS Boston (@NWSBoston) January 5, 2018