'Bomb cyclone' threatens 70 million in central US with blizzard conditions, heavy rains, fierce wind

A late-season storm system is forecast to explode over the central U.S. on Wednesday, becoming a "bomb cyclone" as it slams the region with blizzard conditions, heavy rains and fierce winds that threaten to snarl travel for tens of millions.

The National Weather Service said the "highly impactful winter storm" will intensify over the Central Rockies before pushing eastward through the Central Plains. The storm is expected to reach the criteria of a "bomb cyclone" because it's going to strengthen by dropping 24 millibars in 24 hours, according to Fox News Senior Meteorologist Janice Dean.

"70 million people will potentially be affected by this storm system across the Plains states, bringing blizzard conditions, potential tornadoes and flash flooding," Dean said Wednesday on "FOX & friends."

A millibar is the measurement of atmospheric pressure, according to the National Oceanic and Atmospheric Administration.

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