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Storm to hit Rockies before forming new ‘bomb cyclone’

April 8, 2019

HELENA, Mont. (AP) — A Montana town evacuated for a wildfire one day has snow in the forecast two days later. Fire warnings have popped up across eastern Colorado. Areas that were paralyzed by blizzards and floods last month are getting ready for round two of a weather phenomenon known as a “bomb cyclone.”

Welcome to springtime in the Rockies and parts of the Great Plains.

Meteorologists say much of it is normal. But what is unusual is the second consecutive month for an inland bomb cyclone, which is a rapid drop in air pressure.

A March 13 bomb cyclone caused massive flooding and produced winds of between 96 and 110 mph.

A new one is expected to form this week over many of those same areas.

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Associated Press writers Seth Borenstein in Washington, D.C., and Dan Elliott in Denver contributed to this report.