He also notes that while this study focuses on percentage changes in the amount of snowfall in extreme snowfall events, there can be larger changes in the frequency of such events. (sciencedaily.com)
In the wintertime, the idea goes, a weaker, wavier jet stream could promote more and longer bouts of frigid air reaching farther south, leading to extreme snowfalls such as those that struck the eastern United States in the past few years. (sciencemag.org)