Bombogenesis occurs when a storm strenghtens really, really fast, dropping at least 24 millibars over 24 hours.

Such a rapidly intensifying area of low pressure engulfed the Great Lakes on October 24, 2017, bringing sustained powerful wind to parts of Michigan.

Here another animation showing the undergoing bombogenesis on October 24, 2017:

Look at the amazing waves along the coast of Lake Superior in Marquette, Michigan as the anomalous storm hit:

Lake Superior is throwing plenty of rocks on this Marquette’s park:

There was basically a hurricane force storm along Lake Superior. Waves were crashing so hard people could feel it in the rocks they stood on:

Wind gusts over 60 mph downed trees and knocked out power in Michigan’s Upper Peninsula.

The formation of this rapidly strengthening weather system is a process called bombogenesis, which creates what is known as a bomb storm. October and November are prime months for these Great Lakes wind storms.