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We’ve got a serious blast of freezing arctic air hitting the USA and Canada right about now and it will spread across the United States of America during the week. So get ready for cold, snow and ice. plus sub-zero temperatures.
God bless everyone,
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Arctic air to invade majority of US this week
The coldest and most widespread blast of arctic air so far this season will spread across the majority of the United States this week.
Frigid air from the depths of the Arctic will plunge into the United States as the jet stream (a fast-river of air along which storms travel) drops southward.
The coldest days of next week will yield highs and lows generally 10-20 degrees Fahrenheit below normal from the Northwest to the Gulf and East coasts.
Departures from normal highs will even approach 30 degrees in Billings, Montana, and Denver, Colorado.
The arctic blast will first began to chill the Northwest this weekend, where pockets of snow and freezing conditions made some roads slippery.
The northern Rockies and northern Plains will face multiple days of highs in the single digits and teens. Subfreezing highs will then spread to the central Plains, Great Lakes and interior Northeast.
“Afternoon high temperatures in cities like Kansas City and St. Louis will only be in the 20s late in the week, while some places in the Dakotas may have a day or two where the temperature does not even get above zero,” AccuWeather Meteorologist Brian Thompson said.
Residents will need make sure they are sufficiently bundled up before heading outdoors and make sure animals have proper shelter.
Temperatures will struggle to reach the 50-degree mark later this week along the I-10 corridor from El Paso, Texas, to Houston to Jacksonville, Florida.
“This arctic air mass will mean an early cold snap for much of Florida,” Thompson said.
Temperatures in Tampa and Orlando, Florida, may struggle to get much past 60 on Friday.
Temperatures could drop below freezing across the northern Florida Peninsula for one night later in the week.
Windswept snow will fall over the northern Plains at midweek with a separate zone of snow likely to spread from the central Rockies, including Denver, to the interior Northeast.
As the arctic air sweeps over the warm waters of the Great Lakes, a significant lake-effect snow event will unfold.
More arctic blasts are likely to follow the next week with additional opportunities for snow possible from the central Rockies to the Northeast.
As arctic air blasts eastward, flurries, snow squalls and lake-effect snow will create wintry travel from the Upper Midwest to part of the northeastern United States later this week.
Prior to the arrival of the arctic air and lake-effect snow, pockets of snow and a wintry mix will occur in parts of central and northeastern U.S.
One area of wind-swept snow will expand eastward over the northern Plains through Tuesday.
Snow and a wintry mix will develop in parts of central and northern Pennsylvania Tuesday afternoon.
In part of this area, the snow can fall at a heavy rain for a few hours.
This wintry mix will then extend northeastward into parts of New York state and New England during Tuesday night. Enough snow can fall to shovel and plow, especially over the higher elevations.
A third area of snow that develops over the central Rockies and Plains by midweek is likely to diminish as it moves farther east during Wednesday night and Thursday.
The coldest air of the season so far will set off bands of flurries and snow squalls beginning over the Upper Midwest on Wednesday and then the interior Northeast on Thursday.
During the latter part of the week, the lake-effect snow machine will be running at full speed.
Strong winds accompanying the cold air may not only lead to airline delays but could also cause local white-out conditions on area highways.
The Interstate 90 corridor will be the most affected from Indiana to Ohio, Pennsylvania and New York state. Other major highways where motorists could face highly variable weather conditions include portions of I-75, I-79, I-80, I-81 and I-196.