New Delhi, Feb. 22 -- A rapidly strengthening nor'easter is gathering force along the East Coast, with snow already falling across parts of the Great Lakes and interior Northeast as of Sunday morning.

According to NBC New York, light snow is spreading from the Great Lakes into parts of upstate New York and Pennsylvania, while areas along the Interstate 95 corridor - including New York City and Philadelphia - began the day with rain due to temperatures just above freezing.

Forecasters say colder air is steadily pushing south and east, setting the stage for a widespread changeover to snow.

Meanwhile, AccuWeather reports that the storm is intensifying and is expected to evolve into a bomb cyclone from Sunday into Monday, bringing blizzard...