A team has used scars in tree rings to track avalanches.
The nor'easter is the third to hit in two weeks.
Schools in the Northeast were shutting their doors ahead of heavy snow.
Headteacher Ges Smith defended the snow ban during an appearance on a morning television show.
Understanding ice shelves is key to projecting sea level rise.
The bomb cyclone was just the tip of the crazy weather iceberg.
While dumps of snow across the Eastern Seaboard will diminish over the next couple of days, severe wind chill and cold temperatures will follow.
Winter Storm Grayson is a rare snow hurricane and the first to hit the U.S. since Hurricane Sandy.
Let's break down the terms.
"Visibility will be zero or down to zero at times with travel highly discouraged," the National Weather Service warned.
Cold air mixed with the relatively warm waters of the Great Lakes to produce 'cloud streets.'
Photos show a record-breaking four-day snow accumulation of over 5 feet in the city.