A blizzard warning is in effect for Michigan’s Upper Peninsula as a bomb cyclone — a rapidly intensifying winter storm — crosses the Great Lakes.

The last days of 2025 include all sorts of potential bad weather: Blizzard conditions, a brewing bomb cyclone and "Blue Norther." Here's what to know.

A 'bomb cyclone' is set to hit the Great Lakes, unleashing freezing rain over New York after winter weather caused travel chaos on one of the busies days of the holiday season

A High Wind Warning is in effect for all of southeast Michigan through the day Monday. These winds are strong enough to make travel difficult, especially for high-profile vehicles, and power outages are increasingly likely as the morning wears on.

As the Upper Midwest and Great Lakes region faces heavy snow and strong winds, thousands remain without power in Michigan.

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.

A "bomb cyclone" is intensifying severe winter weather for millions of people across the U.S. The system is expected to knock out power and disrupt holiday travel.

From tropical cyclones to torrential floods and fire alerts, Australia battles a perfect storm of extreme weather events threatening millions across multiple states this week.