Deep Freeze Shivers Eastern U.S. Again This Morning
UPDATED 6 AM EST, January 8, 2014
UPDATED By WeatherBug Meteorologist, Fred Allen
The Eastern U.S. just can't seem to shake loose from Old Man Winter's grasp this morning. Although not as dangerously cold or record-smashing as earlier this week, the deep freeze is still kicking aplenty from the northern Plains all the way to the Sunshine State.
Driving the record-breaking Arctic Outbreak is a pair of high pressure systems with roots from the Polar region of Canada. The first is sliding across the Dakotas and Upper Midwest, where dry air, a deep snow pack and little or no wind is allowing temperatures to plunge as low as the teens and 20s below zero in Minnesota and North Dakota. The Interstate 94 corridor from Minneapolis to Chicago isn't fairing much better, with temperatures bottoming out in the single digits to lower teens below zero this morning.
The scope of the cold air doesn't stop there. Instead, it covers nearly the entire Eastern U.S. east of the Rocky Front Range. Just like its northern neighbors, high pressure anchored from the Deep South into the Mid-Atlantic is the impetus for near-perfect radiational cooling conditions this morning. Even here the mercury is bottoming out in the teens as far south as Macon, Ga., and fast-approaching the freezing mark from Orlando to Tampa Bay, Fla.
Even further north across the Mid-Atlantic and Northeast, the mercury has taken a tumble ranging from the single digits and low teens from the Nation's Capital to Boston, to the single digits below zero along the central and northern Appalachian Spine snaking along the Interstate 81 corridor.
If that weren't enough, add in a bit of wind and wind chills are once again approaching dangerous levels across parts of the northern Plains, Upper Midwest and Great Lakes. Here, the coldest spots are dropping as low as the 20s and lower 30s degrees below zero. In fact, single digits above-and-below zero to the lower and middle 20s blanket almost the entire U.S. this morning, excluding southern Florida.
Wind Chill Warnings and Advisories remain in place from northeastern Montana into northern Maine, as well as far east as central Massachusetts, including Minneapolis and Duluth, Minn., Milwaukee, Detroit, Cleveland, Pittsburgh, Albany, N.Y., Springfield and Worcester, Mass., and Caribou, Maine. In some places across Minnesota and the eastern Dakotas, hypothermia and frostbite could set in within 30 minutes if your skin is not properly protected.
Not to be outdone, Hard Freeze and Freeze Warnings and Wind Chill Advisories now extend from Louisiana to southern Georgia and northern and central Florida, including Birmingham, New Orleans, and Jacksonville, Orlando and Tampa Bay, Fla., this morning. Temperatures at these low levels will threaten sensitive vegetation and livestock.
The brutally cold start from the northern Plains into the Upper Midwest will mean one final day of sub-zero degree high temperatures, including in places such as Fargo, N.D., and Minneapolis-St. Paul. It will thankfully warm into the single digits and teens above zero for places like Chicago and Detroit, with teens and 20s common from Boston to Washington, D.C. Further south across the Southeast, Tuesday's readings in the 20s will be traded for more tolerable 30s, 40s and lower 50s by later this afternoon.
The mercury will continue to make leaps and strides by Thursday and Friday as high pressure exits the East Coast and a return southerly wind pushes highs back to seasonal averages. This means highs in the 20s and 30s for places like Chicago, Indianapolis and Minneapolis, with the mercury pushing 40 degrees for Washington, D.C., and Philadelphia.
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