SHEFFIELD SNOW ALERT: Met Office weather warning issued for city

Katie Ramirez
January 29, 2019

Not a major snow storm by any means, the rain and snow Tuesday night combined with the Arctic chill to follow does make for a busy week of weather ahead. At least two deaths - one in Minnesota and one in IL - have been attributed to the current cold pattern. The cold air is strong and will move in quickly behind the frontal boundary this evening.

Accuweather reports that the temperatures are unique, also, in that they are "prolonged", and could last from late Tuesday night through early Thursday morning: "Some locations in the Midwest will be below zero continuously for 48-72 hours". However, the decrease in temperature prompted the National Weather Service (NWS) to issue windchill advisories and warn residents about the potential dangers of going outside without proper protection.

The polar vortex - bringing what AccuWeather called "the coldest weather in years" - is set to extend from the Dakotas through New England, with Chicago expecting temps to dip as low as negative 25 degrees overnight Tuesday into Wednesday, forecasts show. The wind chill temperature, which is a measure of what the air fees like when wind is taken into account, will fall as low as minus-65 in the Upper Midwest.

With the lack of this deep of cold so far this winter, the Great Lakes remain unfrozen, opening the door for lake-effect snow as the icy air pours in.

Parts of northern Minnesota may see air temperatures below -30°F and wind chills of -55 to -60°F (-61°C). Then it got cold.

The wind chill will plunge to minus-30 to minus-40 as far south as IL and northern Indiana.

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The cold wave, which should begin to wane Friday into the weekend, is likely to set numerous records.

Heavy snow and gusting winds have also created blizzard-like conditions in Minnesota, Wisconsin, northern IL and other Midwestern states where officials have also closed schools, courthouses and businesses. The higher accumulations will fall along and west of Interstate 81.

Some of the cold from this arctic blast will reach the Mid-Atlantic and Northeast, but its intensity is likely to ease as it nears the coast - with the more extreme conditions in the interior.

Clarification: The headline on this article has been updated to make clear that 75% of the U.S. population will see below-freezing temperatures this week.

This article was originally published by The Washington Post.

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