A "bomb cyclone" (also known as Bombogenesis) happens when a cyclone develops so fast that it drops the atmospheric pressure by at least 24 millibars, according to NOAA.
On March 13 the cyclone began to unleash its fury in Colorado, where some locations saw up to a foot and a half of snow. "Severe weather will accompany these thunderstorms", NWS said, as the system moves quickly eastward. By Friday the storm will hit Tennessee and parts of MS and northern Louisiana where as much as 4 inches of rain could fall and tornadoes are expected. We've got more details about where the scary storm is heading.
The National Weather Service posted a GIF on Wednesday showing the system shaping up.
An earlier round of heavy, wet snow caused several roofs to collapse, including those of a church and a hotel, in the Upper Midwest last weekend.
Destructive winds, gusting at more than 100 miles per hour, are expected in Texas, New Mexico, Kansas and Colorado, where widespread power outages are possible.
A storm system that could generate severe weather in Alabama tomorrow is bringing "historic" blizzard conditions to parts of the Great Plains today, according to the National Weather Service.
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Southwest Airlines has canceled all departures out of DIA after 8:30 a.m. Wednesday, said Emily Williams, an airport spokeswoman.
Cities in the current path of the heaviest area of snow include Cheyenne, Wyoming; Sidney, Nebraska; Pierre, South Dakota; and Fargo, North Dakota.
Many police departments across the state have sent out blizzard survival tips, urging people to carry emergency kits with them if they venture out into the formidable weather.
It claimed blizzard conditions are possible for the Central and Northern High Plains.
The National Weather Service warned residents of Boulder, Colo. against traveling on Wednesday afternoon and evening, citing the possibility of icy roads, whiteout conditions, and strong winds, according to CNN.
High wind watches or warnings are affecting more than 20 states. "Widespread blowing snow will reduce visibility to near zero at times".