The polar jet has dominated the scene in recent weeks typically extending all the way from western Canada into the northeastern US, but the sub-tropical jet is starting to show some life. This change in the overall weather pattern raises the prospects for moderation in temperatures across the northeastern states, some well-needed precipitation across many of the western states, and for the formation of storm systems that take a southern route across the southern states. By mid-week, a storm will head into California with some rainfall in low-lying areas and snow for mountainous areas, and then this low pressure system will re-emerge over the south-central states by the early part of the weekend...all of which will be aided by an activated sub-tropical jet stream.
The southern storm system will take a turn to the northeast later in the weekend and head towards the Ohio Valley, but it will become increasingly influenced by strong ridging centered over the Hudson Bay region of Canada. As such, the northward progression of the surface low will grind to a halt over the Ohio Valley and the action will shift to the east so that by the end of the weekend, strong low pressure is liable to be located somewhere near the eastern seaboard. Temperatures may be borderline later this weekend in the I-95 corridor so this region could become a “battle zone” with respect to precipitation type with snow favored to the north and west and rain to the south and east.
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After a bitter cold weekend, the new work week starts off with plenty of Arctic cold in the Mid-Atlantic region with numerous single digit temperatures being observed. Temperatures modify on Tuesday and then a cold front arrives at mid-week assuring cold weather for the second half of the week, but not the extreme cold just experienced. The weekend will bring another storm threat to monitor with the possibility of mixed precipitation during the second half.
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After a bitter cold weekend, the new work week starts off with plenty of Arctic cold in the Mid-Atlantic region with numerous single digit temperatures being observed. Temperatures modify on Tuesday and then a cold front arrives at mid-week assuring cold weather for the second half of the week, but not the extreme cold just experienced. The weekend will bring another storm threat to monitor with the possibility of mixed precipitation during the second half.
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After a bitter cold weekend, the new work week starts off with plenty of Arctic cold in the Mid-Atlantic region with numerous single digit temperatures being observed. Temperatures modify on Tuesday and then a cold front arrives at mid-week assuring cold weather for the second half of the week, but not the extreme cold just experienced. The weekend will bring another storm threat to monitor with the possibility of mixed precipitation during the second half.
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Intense cold this weekend with powerful and potentially damaging winds…
The combination of a clipper low pressure system and its associated cold front will produce snow showers in the area later today and tonight and there can be brief heavier snow bursts. Small accumulations are possible on the order of a coating to an inch and there can be slippery spots on the roadways. After the passage of the cold front, an Arctic air mass will plunge into the Mid-Atlantic region from eastern Canada leading to a bitter cold weekend. This Arctic air mass is the real deal, had its origins on the Siberian side of the North Pole, and will not have the usual modifying effects of crossing over the relatively warm Great Lakes. In addition to the bitter cold, biting winds will become a major factor on both weekend days with gusts of up to 55 mph producing dangerously low wind chill levels of well below zero and raising the possibility of power outages in some areas.
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Intense cold this weekend with powerful and potentially damaging winds…
The combination of a clipper low pressure system and its associated cold front will produce snow showers in the area late today and tonight and there can be brief heavier snow bursts. Small accumulations are likely on the order of a coating to an inch or two and there can be slippery spots on the roadways. After the passage of the cold front, an Arctic air mass will plunge into the Mid-Atlantic region from eastern Canada leading to a bitter cold weekend. This Arctic air mass is the real deal, had its origins on the Siberian side of the North Pole, and will not have the usual modifying effects of crossing over the relatively warm Great Lakes. In addition to the bitter cold, biting winds will become a major factor on both weekend days with gusts of up to 55 mph producing dangerously low wind chill levels of well below zero and raising the possibility of power outages in some areas.
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Intense cold this weekend with powerful and potentially damaging winds…
The combination of a clipper low pressure system and its associated cold front will produce snow showers in the area late today and tonight and there can be brief heavier snow bursts. Small accumulations are likely on the order of a coating to an inch and there can be slippery spots on the roadways. After the passage of the cold front, an Arctic air mass will plunge into the Mid-Atlantic region from eastern Canada leading to a bitter cold weekend. This Arctic air mass is the real deal, had its origins on the Siberian side of the North Pole, and will not have the usual modifying effects of crossing over the relatively warm Great Lakes. In addition to the bitter cold, biting winds will become a major factor on both weekend days with gusts of up to 55 mph producing dangerously low wind chill levels of well below zero and raising the possibility of power outages in some areas.
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An Arctic air mass will plunge into the Mid-Atlantic and Northeast US this weekend moving almost directly southward from the frozen tundra region of eastern Canada. Actually, this incoming Arctic air mass had its origins several days ago on the other side of the North Pole and was transported into North America from Siberia in a “cross-polar” overall wind pattern. The cold front at the leading edge of this bitter cold air mass will be quite active with strong support in the upper part of the atmosphere. As a result, numerous snow showers are likely on Friday night, and there can be bursts of heavier snow mixing into the picture...small accumulations and slick spots on the roadways are on the table. In addition to the bitter cold this weekend, biting and potentially damaging winds will become a major factor with gusts to 50+ mph raising the prospects for power outages in some areas. The combination of bitter cold air and powerful winds will result in dangerously low wind chill levels from later Saturday to early Sunday with apparent temperatures well below zero at times in many areas.
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An Arctic air mass is headed to the Mid-Atlantic region for the weekend with its origins on the Siberian side of the North Pole. This Arctic blast will be directly discharged to us from eastern Canada as compared with the more conventional “northwest-to-southeast” route that has air traveling over the Great Lakes meaning there will be less chance for modification. The cold front at the leading edge of this bitter cold air mass will be quite active from late tomorrow afternoon into tomorrow night with strong support in the upper part of the atmosphere, leading to snow showers and perhaps a heavier snow squall. Small accumulations of a coating to an inch or so are likely by later tomorrow night…watch for slippery spots. In addition to the bitter cold this weekend, winds will become a major factor on both days with gusts up to 50 mph producing dangerously low wind chill levels of below zero in many locations.
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Our mild weather pattern will continue for the next several days with afternoon highs generally falling in the range of the low-to-middle 60’s. Looking ahead, the pattern will likely change during the early part of next week with more normal temperatures and the chance of precipitation will be on the rise.
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