AccuWeather forecasters warn that the waves of Arctic air spilling into the Plains and East will continue to expand southward across the nation, yielding notably cooler conditions as far south as the Southeast coast throughout the upcoming week.
This week, the cold pattern will be periodically rejuvenated as additional shots of energy pulse southward across the country, ushering in more brisk, Canadian air with temperatures well below the historical average.
Through at least Jan. 12, widespread temperatures 12-25 degrees Fahrenheit below typical early-January values are projected to expand across much of the central and eastern United States.
“Should the cold wave evolve to its full potential, maximum temperature departures could plunge 30-40 degrees Fahrenheit below the historical average from the northern Plains and Midwest to the interior Southeast through the first two weeks of January,” explained AccuWeather Meteorologist Alex Duffus.
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This repetitive, chilly pattern can place additional stress on energy usage across a large portion of the nation, especially with some locations remaining below the freezing mark for days and nights for another week or more.
Rounds of snow, ice and gusty winds will accompany the persistent, chilly conditions in some locations, AccuWeather forecasters warn. A widespread storm advancing across the eastern half of the nation will continue to produce impactful weather as it trudges into the mid-Atlantic coast by the start of the workweek.
In the cold sector of the storm, wind gusts from Sunday into Monday from the Central states into parts of the Tennessee Valley will range from 20-35 mph at times. Farther south, however, into the warm sector of the storm, robust thunderstorms can kick up from Sunday to Sunday night and produce severe wind gusts along the Gulf coast.
Blowing winds coinciding with the frigid conditions already in place will amplify AccuWeather RealFeel® Temperature values, making it feel anywhere from 15-30 degrees lower than the actual temperature.
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As far south as the Gulf Coast and Southeast, overnight temperatures this week will begin to drop below the freezing mark for the first time this season.
Residents in New Orleans will be among some locations to notice an abrupt drop in temperature this week after severe storms threaten the region later this weekend. High temperatures on Sunday, when the risk for severe weather will be elevated, are forecast to peak in the middle 70s F. By Monday night, overnight lows are projected to drop a whopping 40 degrees, into the mid-30s F.
As this frigid pattern produces the coldest air of the season across much of the nation, residents will be fighting to keep their homes and businesses warm and insulated enough.
Particularly during the overnight periods this week, temperatures across the Central states will drop into the teens and even several degrees below zero at times. At these values, frostbite becomes a serious concern and anyone who must venture outdoors for a period of time is strongly urged to cover exposed skin.
“Prolonged heating demand, frozen pipes and dangerously low AccuWeather RealFeel® Temperatures and power outages can all occur this week,” warned AccuWeather Meteorologist Alex Duffus.
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Some locations will begin to notice some signs of improvement as the end of the week approaches. Cities like Omaha are forecast to rise above freezing by Thursday or Friday, while Chicago residents will not see high temperatures above the 32-degree mark likely until the upcoming weekend.
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