(Bloomberg) -- Chicago is in the cross-hairs of a powerful winter storm that could become a “bomb cyclone” — with deep snow, searing winds and an Arctic chill — threatening to disrupt Christmas travel for millions of people in the US and bring a deep freeze to the eastern two-thirds of the country.
While the city, a major US air hub, may only get 5 inches (13 centimeters) of snow starting Wednesday night, it will be hit with winds that could make temperatures feel like minus 35F (minus 37C), according to the National Weather Service.
United Airlines Holdings (NASDAQ:UAL) Inc., Delta Air Lines Inc (NYSE:DAL)., American Airlines (NASDAQ:AAL) Group Inc. and others have issued travel waivers so passengers can rebook holiday travel with no fees. An estimated 112.7 million people are expected to travel 50 miles (80 kilometers) or more from Dec. 23 to Jan. 2, according to automotive group AAA. Meanwhile cold reaching deep into Texas and Florida will make being outside miserable.
“Over two-thirds of the country has something related to this system,” said David Roth, a senior branch forecaster at the US Weather Prediction Center. “About the only places not impacted are parts of the Great Basin, the Southwest, Hawaii and Puerto Rico.”
Roth said the storm will strengthen as it moves east and will certainly meet the criteria needed to be classified as a bomb cyclone. The classic definition is when a storm’s central pressure, a measure of its strength, drops 24 millibars in 24 hours.
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Chasing the storm — which will also hit eastern Canada and trigger lake effect snow across the Great Lakes — is a cold front that will send temperatures plunging for the eastern two-thirds of the US. That will drive a frigid wedge as far south as Texas and central Florida, boosting energy demand as people turn up their thermostats to beat the chill.
The worst of the cold will strike the Great Plains, but below freezing temperatures will reach deep into Texas and are possible even Orlando, Florida, said Don Keeney, a meteorologist with commercial-forecsater Maxar. The frigid air could lead to winter kill of wheat crops in parts of Kansas, Colorado, Oklahoma, and northwest Texas.
“This is going to be as cold as I have seen it in the central Plains in probably 20 years,” Keeney said. “It is going to be very intense.”
The Texas energy grid is being closely watched because another sharp cold snap brought it to its knees in February 2021. This current event isn’t expected to last as long. The low in Dallas is forecast to hit 11F, with the wind-chill making it feel closer to minus 6F in places.
Northeast Impact
The snow will likely miss New York and the other big cities in the Northeast, but rain and high winds could buffet the region before temperatures plummet.
Much of the region will be battered by high winds, Keeney said.
Readings in Manhattan’s Central Park will hit a high of 54F Friday before dropping to 15F later, the weather service said. A high-wind watch, with gusts of as much as 65 miles per hour, has been issued for Boston and parts of New England. There is a chance of widespread power outages across much of the US.
After the storm sweeps across the US, it is forecast to bring snow and rain across eastern Canada. The heaviest snow will likely miss Toronto, but the city could find itself in the midst of a flash freeze when temperatures drop, according to Environment and Climate Change Canada. On both sides of the border, the cold air and relatively warm water in the Great Lakes will lead to heavy snowfall on the eastern shorelines.
Temperatures will start to rebound on Christmas Day, except in the South where the cold could linger for a few days, Roth said.