Parts of New York state were battered by lake-effect snow on Tuesday, with areas just south of Buffalo expected to rack up of 70 inches of the white stuff by Wednesday evening. The extremely cold air blowing over the relatively mild waters of Lake Erie also created enough instability to bring thundersnow to the area. Bands of snow are seen moving into south Buffalo in this stunning time-lapse footage from Tuesday.
This video illustrates how subtle changes in wind direction can make the difference between several feet of snow and nearly no snow at all. In this case, winds have remained steady out of the west-southwest, pounding Buffalo’s southern suburbs with several inches of snow per hour.