An outbreak of Arctic air will get underway by early tomorrow over the central US and the bitter cold air mass will plunge southward all the way into the heart of Texas by late Saturday. On Sunday, the Arctic front at the leading edge of the Arctic air mass will slide into the eastern states and its progression will likely slow down across the southeastern states. Energy will rotate through an upper-level trough on Sunday, and this will open the door for an Arctic wave of low pressure to form along the front’s temperature gradient zone which is typically a favorable area for convergence in the atmosphere. That low pressure system should then push northeastward into an increasingly colder air mass, and it is likely to produce snow in the DC-to-Philly-to-NYC corridor by later Sunday into Sunday night…accumulations of several inches are most certainly on the table with preliminary estimates of 4-8 inches in our area.
By Monday, January 20th, the bitter cold air will be firmly established across much of the nation, and this includes in the DC metro region where outdoor activities are planned for the Inauguration Day ceremonies. Temperatures are likely to be not far from 20 degrees at noontime on Monday in the DC metro area and there will be a biting wind to make it feel even colder than the actual air temperatures. In addition, there is likely to be a snow cover in DC on Monday following what I expect to be accumulating snowfall there on Sunday. Temperatures on Monday night should easily drop into single digits along the DC-to-Philly-to-NYC corridor and to below-zero levels across a huge part of the northern US. In fact, the first couple of days next week could turn out to be some of the coldest in a long, long across the nation with the brutally cold conditions extending virtually from coast-to-coast.
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Big-time changes will begin to take place later this weekend with very mild conditions on Saturday being replaced by much colder conditions on Sunday. An Arctic front will slide through the eastern states during the second half of the weekend, and it’ll usher in a widespread Arctic air mass that will encompass much of the nation. After temperatures climb to well up in the 50’s on Saturday ahead of the strong cold front, they’ll likely be confined to the 20’s on Monday and Tuesday for afternoon highs.
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An outbreak of Arctic air will get underway by early tomorrow over the central US and the bitter cold air mass will plunge southward all the way into the heart of Texas by late Saturday. On Sunday, the Arctic front at the leading edge of the Arctic air mass will slide into the eastern states and its progression will likely slow down across the southeastern states. Energy will rotate through an upper-level trough on Sunday, and this will open the door for an Arctic wave of low pressure to form along the front’s temperature gradient zone which is typically a favorable area for convergence in the atmosphere. That low pressure system should then push northeastward into an increasingly colder air mass, and it is likely to produce snow in the DC-to-Philly-to-NYC corridor by later Sunday into Sunday night…accumulations of several inches are most certainly on the table with preliminary estimates of 3-6 inches in our area.
By Monday, January 20th, the bitter cold air will be firmly established across much of the nation, and this includes in the DC metro region where outdoor activities are planned for the Inauguration Day ceremonies. Temperatures are likely to be not far from 20 degrees at noontime on Monday in the DC metro area and there will be a biting wind to make it feel even colder than the actual air temperatures. In addition, there is likely to be a snow cover in DC on Monday following what I expect to be accumulating snowfall there on Sunday. Temperatures on Monday night should easily drop into single digits along the DC-to-Philly-to-NYC corridor and to below-zero levels across a huge part of the northern US. In fact, the first couple of days next week could turn out to be some of the coldest in a long, long across the nation with the brutally cold conditions extending virtually from coast-to-coast.
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An outbreak of Arctic air will get underway by early tomorrow over the central US and the bitter cold air mass will plunge southward all the way into the heart of Texas by late Saturday. On Sunday, the Arctic front at the leading edge of the Arctic air mass will slide into the eastern states and its progression will likely slow down across the southeastern states. Energy will rotate through an upper-level trough on Sunday, and this will open the door for an Arctic wave of low pressure to form along the front’s temperature gradient zone which is typically a favorable area for convergence in the atmosphere. That low pressure system should then push northeastward into an increasingly colder air mass, and it is likely to produce snow in the DC-to-Philly-to-NYC corridor by later Sunday into Sunday night…accumulations of several inches are most certainly on the table with preliminary estimates of 4-8 inches in our area.
(This kind of weather could make for quite an interesting Eagles-Rams game at 3pm on Sunday).
By Monday, January 20th, the bitter cold air will be firmly established across much of the nation, and this includes in the DC metro region where outdoor activities are planned for the Inauguration Day ceremonies. Temperatures are likely to be not far from 20 degrees at noontime on Monday in the DC metro area and there will be a biting wind to make it feel even colder than the actual air temperatures. In addition, there is likely to be a snow cover in DC on Monday following what I expect to be accumulating snowfall there on Sunday. Temperatures on Monday night should easily drop into single digits along the DC-to-Philly-to-NYC corridor and to below-zero levels across a huge part of the northern US. In fact, the first couple of days next week could turn out to be some of the coldest in a long, long across the nation with the brutally cold conditions extending virtually from coast-to-coast.
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Our recent dry and mild weather pattern is coming to an end... After temperatures climbed well into the 50’s on Thursday, a downward trend begins today and it will accelerate early this weekend. In fact, bitter cold air is likely to flood this area by the weekend and it will come with a good chance of accumulating snow on the order of 3-6 inches between late today into early Saturday. Temperatures will do no better than the teens on Saturday and Sunday and potentially confined to near 10 degrees by Monday. Overnight temperatures are likely to drop to as low as 5 degrees below-zero from Saturday night through Monday night.
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The next several days will feature the worst that winter has to offer with widespread brutal cold and multiple snow and ice threats. An Arctic invasion with a Siberian connection will get underway by Saturday as bitter cold air from Canada plunges southward through the central states. By Sunday, the Arctic air mass will spread eastward towards the Atlantic seaboard and by the time we get to Monday, Inauguration Day, most of the country will be in a deep freeze including the DC metro where outdoor activities are planned for the swearing-in ceremonies. In fact, the first couple of days of next week could be among the coldest seen across the nation in a long, long time as there will be bitter cold conditions extending virtually from coast-to-coast.
This Arctic invasion will come with multiple snow and ice threats including one later Sunday into Sunday night in the Mid-Atlantic/Northeast US with several inches on the table, and another one at mid-week which could have a focus on the southern US. And, in the very short-term, snow is already falling today across the Great Lakes region with accumulations expected there on the order of a few inches, and occasional snow is likely to make its way into the DC-to-Philly-NYC corridor for the afternoon and early evening hours with accumulations possible of a coating to an inch or two.
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Dry and warmer conditions are in the offing for today, but big-time changes are on the way. After temperatures climb into the 50’s today, the trend to the downside will begin on Friday and accelerate early this weekend. In fact, bitter cold air is likely to flood this area by the weekend and it will come with a good chance of accumulating snow from Friday night into Saturday with several inches possible. Temperatures may do no better than the teens on Saturday for highs and potentially be confined to the single digits for highs on Sunday and Monday.
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A “clipper” system will drop southeastward today across the Great Lakes region and it likely produces occasional snow here from mid-afternoon into the early evening hours. Small accumulations of a coating to an inch or two are possible…watch for slick spots later today as temperatures will remain below-freezing and the roadways are very cold. Temperatures will moderate on Friday to go along with dry conditions and then there can be some rain shower activity on Saturday - perhaps even a mix with ice or snow at times - this does not look like a heavy precipitation event.
On Sunday, a strong Arctic cold front will slide into the eastern states and it will be at the leading edge of a widespread Arctic air mass. A wave of low pressure is likely to form right along this frontal boundary zone somewhere over the southeastern states and it can then push to the northeast later Sunday into an increasingly colder air mass. As such, there is the chance for snow in the Mid-Atlantic region from later Sunday into Sunday night...perhaps beginning as rain and then changing to snow…accumulations are most definitely on the table.
By the time we get to Monday, Inauguration Day, most of the country will be in a deep freeze including the DC metro area where outdoor activities are planned for the swearing-in ceremonies. Single digit (actual) temperatures are likely on Monday night all along the DC-to-Philly-to-NYC corridor and they may do no better than the teens on Tuesday for afternoon highs.
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A “clipper” system will drop southeastward today across the Great Lakes region and it likely produces occasional snow here from mid-day/early afternoon into the early evening hours. Small accumulations of a coating to an inch or two are possible…watch for slick spots later today as temperatures will remain below-freezing and the roadways are very cold. Temperatures will moderate on Friday to go along with dry conditions and then there can be some rain shower activity on Saturday - perhaps even a mix with ice or snow at times - this does not look like a heavy precipitation event.
On Sunday, a strong Arctic cold front will slide into the eastern states and it will be at the leading edge of a widespread Arctic air mass. A wave of low pressure is likely to form right along this frontal boundary zone somewhere over the southeastern states and it can then push to the northeast later Sunday into an increasingly colder air mass. As such, there is the chance for snow in the Mid-Atlantic region from later Sunday into Sunday night...perhaps beginning as rain and then changing to snow…accumulations are most definitely on the table.
By the time we get to Monday, Inauguration Day, most of the country will be in a deep freeze including the DC metro area where outdoor activities are planned for the swearing-in ceremonies. Single digit (actual) temperatures are likely on Monday night all along the DC-to-Philly-to-NYC corridor and they may do no better than the teens on Tuesday for afternoon highs.
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A “clipper” system will drop southeastward today across the Great Lakes region and it likely produces occasional snow here from mid-day/early afternoon into the early evening hours. Small accumulations of a coating to an inch or two are possible…watch for slick spots later today as temperatures will generally remain below-freezing and the roadways are very cold. Temperatures will moderate on Friday to go along with dry conditions and then there can be some rain shower activity on Saturday - perhaps even a mix with ice or snow at times - this does not look like a heavy precipitation event.
On Sunday, a strong Arctic cold front will slide into the eastern states and it will be at the leading edge of a widespread Arctic air mass. A wave of low pressure is likely to form right along this frontal boundary zone somewhere over the southeastern states and it can then push to the northeast later Sunday into an increasingly colder air mass. As such, there is the chance for snow in the Mid-Atlantic region from later Sunday into Sunday night...perhaps beginning as rain and then changing to snow…accumulations are most definitely on the table.
By the time we get to Monday, Inauguration Day, most of the country will be in a deep freeze including the DC metro area where outdoor activities are planned for the swearing-in ceremonies. Single digit (actual) temperatures are likely on Monday night all along the DC-to-Philly-to-NYC corridor and they may do no better than the teens on Tuesday for afternoon highs.
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