Low pressure over the southeastern US early this morning will intensify as it pushes northeastward to a position off the Mid-Atlantic coastline by early this evening and then to near the New England coast by later tonight. Snow or rain changing to snow will break out today across the DC-to-Philly-to-NYC corridor and several inches is possible by the time the system winds down later this evening. Bitter cold air will follow the snow for much of the week ahead with single digit overnight lows on the table and some spots may even touch the zero-degree mark. A mid-week winter storm will have a southern US focus likely producing accumulating snow and/or ice from Texas-to-northern Florida-to-the Carolina coastline…likely staying to the south and east of the Mid-Atlantic region. A third storm system may ride up the east coast by the end of the week with some snow possible in the Mid-Atlantic region in the late Thursday/early Friday time period.
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The next several days will feature the worst that winter has to offer across the nation 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 time as there will be bitter cold conditions extending virtually from coast-to-coast.
This cold weather pattern will come with as many as three threats of snow and ice during the next week to ten days. On Sunday, low pressure will form along the incoming Arctic frontal boundary zone and likely produce several inches of snow across the Mid-Atlantic region and Northeast US - and this includes in the big cities along the I-95 corridor from DC-to-Boston. Another storm is destined to form over the Gulf region by mid-week and its focus could be on the southern states with significant snow and ice a possibility from Texas to the Carolinas…the snow shield can potentially work its way into the Mid-Atlantic region. Yet another system can again develop way down in the southern states by the end of next week or during the subsequent weekend.
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The Arctic front at the leading edge of a widespread brutally cold air mass will slide into the eastern states on Sunday and its progression will slow down across the southeastern states. Energy will rotate through an upper-level trough to a position over the frontal boundary and low pressure will form in this area of convergence. That low pressure system will then push northeastward into an increasingly colder air mass, and it can produce several inches of snow in the DC-to-Philly-to-NYC corridor from tomorrow into tomorrow night.
Total snow accumulations in the DC metro region likely in the 3-6 inch range with isolated higher amounts, with a starting time around mid-morning. The higher amounts in this range will be on the northwestern side of the metro region and the lower amounts on the southeastern side. Bitter cold air will follow the accumulating snow for the first half of next week and overnight temperatures will drop way down to the low-to-mid single digits.
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The Arctic front at the leading edge of a widespread brutally cold air mass will slide into the eastern states on Sunday and its progression will slow down across the southeastern states. Energy will rotate through an upper-level trough to a position over the frontal boundary zone and low pressure will form in this area of convergence. That low pressure system will then push northeastward into an increasingly colder air mass, and it can produce several inches of snow in the DC-to-Philly-to-NYC corridor from tomorrow into tomorrow night.
Total snow accumulations in the Philly metro region likely in the 4-8 inch range with isolated higher amounts and a starting time around mid-day (snow can be heavy at times during the Eagles-Rams game which begins at 3pm in South Philly). The higher amounts in this range will be on the northwestern side of the metro region and the lower amounts on the southeastern side. Bitter cold air will follow the snowstorm for the first half of next week and overnight temperatures are likely to flirt with the zero degree mark in some spots.
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The Arctic front at the leading edge of a widespread brutally cold air mass will slide into the eastern states on Sunday and its progression will slow down across the southeastern states. Energy will rotate through an upper-level trough to a position over the frontal boundary zone and low pressure will form in this area of convergence. That low pressure system will then push northeastward into an increasingly colder air mass, and it can produce several inches of snow in the DC-to-Philly-to-NYC corridor from tomorrow into tomorrow night.
Total snow accumulations in the NYC metro region likely in the 4-8 inch range with isolated higher amounts and a starting time around mid-afternoon. The higher amounts in this range will be on the northwestern side of the metro region and the lower amounts on the southeastern side. Bitter cold air will follow the snowstorm for the first half of next week and overnight temperatures are likely to drop way down into the low-to-mid single digits.
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The next several days will feature the worst that winter has to offer across the nation 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 cold weather pattern will come with as many as three threats of snow and ice during the next week to ten days. On Sunday, low pressure will form along the incoming Arctic frontal boundary zone and likely produce several inches of snow across the Mid-Atlantic region and Northeast US - and this includes in the big cities along the I-95 corridor. Another storm is destined to form over the Gulf region by mid-week and its focus could be on the southern states with significant snow and ice a possibility down there. Yet another system can again develop way down in the southern states by the end of the next week or during the subsequent weekend.
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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.
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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