Great Lakes, Northeast and storm
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A blizzard warning is in effect for Michigan’s Upper Peninsula as a bomb cyclone — a rapidly intensifying winter storm — crosses the Great Lakes.
A surge of Arctic air brought strong winds, heavy snow and frigid temperatures to the Great Lakes and Northeast on Tuesday, a day after a bomb cyclone barreling across the Midwest left tens of thousands of customers without power.
While hurricanes are fueled by warm ocean waters, bomb cyclones are "cold-core" systems. They are typically triggered when a cold air mass from the north collides with a warm, moist air mass, creating a sharp temperature gradient that provides the energy for the storm to deepen quickly.