India, Jan. 24 -- Over the weekend, a powerful winter storm will be sweeping across the United States, promising heavy snow, ice and potentially record-breaking cold for millions. For over half the country from Texas well up into New England, this could be an impactful weather system leading to perilous travel and vast disruptions.

This snow and ice have already invaded the central and eastern regions of the U.S. and a portion of the South. It is progressing further toward the east, and the forecasts have already predicted heavy snow in this region of the Northeast on Sunday morning. The freezing level is dropping in this region.

Meteorologists say this storm could be among the worst in recent memory. More than 9,000 flights have alread...