Another Arctic blast arrives in the Mid-Atlantic region late Wednesday night/early Thursday and it’ll be even colder than the last one. In fact, temperatures on Thursday and Friday are likely to be confined to the 20’s for highs and early morning lows on Friday could be in record-breaking territory in many parts of the Northeast US. This bitter cold, dense Arctic air mass will then begin to retreat on Saturday, but not before moisture reaches us from the Midwest and this potential collision could lead to significant snow and/or ice problems in the DC-to-Philly-to-NYC corridor before an eventual late day changeover to plain rain.
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Another Arctic blast arrives later this week in the Mid-Atlantic region and it’ll be colder than the last one. In fact, temperatures on Thursday and Friday are likely to hold in the 20’s on both days and overnight lows by Friday morning could bottom out in the single digits near New York City, near 10 degrees in the Philly metro region, and near the 15 degree mark in DC. This bitter cold, dense Arctic air mass will then begin to retreat on Saturday, but not before moisture reaches us from the Midwest and this potential collision of moisture and retreating Arctic air could lead to snow and/or ice problems in the DC-to-Philly-to-NYC corridor before a late day or nighttime changeover to plain rain.
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Another Arctic blast arrives later this week in the Mid-Atlantic region and it’ll be colder than the last one. In fact, temperatures on Thursday and Friday are likely to hold in the 20’s on both days and overnight lows by Friday morning could be record-breaking and bottom out in the single digits near New York City, near 10 degrees in the Philly metro region, and in the 10-15 degree range across DC. This bitter cold, dense Arctic air mass will then begin to retreat on Saturday, but not before moisture reaches us from the Midwest and this potential collision of moisture and retreating Arctic air could lead to significant snow and/or ice problems in the DC-to-Philly-to-NYC corridor before a late day or nighttime changeover to plain rain.
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Slightly milder air will push into the region today and any additional precipitation this morning should fall in the form of plain rain. The big news this week will be the next Arctic blast that should arrive by Wednesday night/Thursday and this one will be bitter. It could be preceded by some snow shower activity on Tuesday night and Wednesday as the Arctic front approaches and then snow showers are possible from Wednesday night into Friday which will be a very cold and windy time period. Another system threatens this weekend with frozen precipitation that could turn out to be a significant snow-to-ice-to-rain scenario.
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This December is a far cry from last year which ended up warmer-than-normal virtually throughout the entire nation. It has been colder-than-normal so far this year throughout a good part of the nation and another significant Arctic blast will cross the northern US this week - reaching the Mid-Atlantic region on Wednesday night and Thursday – and this blast will be colder than the last one.
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The coldest air mass of the season so far in the Mid-Atlantic region is keeping temperatures confined to the 30’s which is well below normal for this time of year and strong NW winds are creating even lower wind chills. This air mass is apparently just a teaser. There are signs that another Arctic blast will occur later next week and it looks even colder – maybe significantly so. In addition to the Arctic air masses, there are likely to be two or three snow threats next week. The first system could bring some snow to areas north of the PA/MD border late Sunday/Sunday night on the order of a coating to an inch or two and there can be some freezing rain involved with this eventThe second threat could bring some snow to the Mid-Atlantic region late Wednesday as the next Arctic cold front approaches. After that, there may be a third threat during the weekend of the 17th/18th as the late week Arctic blast begins to retreat.
The 12Z Euro 850 mb temperature anomaly loop from today through next Friday shows well the movement across the US of the next Arctic air outbreak. It arrives during the mid-to late week time period in this region and by Friday, the Northeast US could be very cold. More details in this afternoon’s video discussion.
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The coldest air of the season so far has arrived in the Mid-Atlantic region and temperatures today will be confined to the 30’s which is well below normal for this time of year. In addition, the winds will be quite strong causing even lower wind chill values and there can be a snow shower or two in the I-95 corridor. The below-normal chill will continue through the upcoming weekend and it looks like there will be another Arctic blast reaching us by the middle of next week. As far as precipitation is concerned, low pressure will approach at the end of the weekend and it is likely to produce mainly rain around here from late Sunday into Monday, but there is an outside chance that some snow mixes in across northern sections. A better chance for snow from this next system will take place primarily north of the PA/MD border.
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The coldest air so far this season will begin to impact the region later today and temperatures on Friday will be confined to the 30’s – well below normal for this time of year. In addition, the winds will be quite strong on Friday causing even lower wind chills and there can be some snow shower activity reaching the I-95 corridor. This Arctic blast will help to generate significant snow shower activity just downstream of the Great Lakes over the next couple of days. The below-normal chill will continue through the upcoming weekend before a bit of a warmup early next week, but that warm up will be brief and followed by another widespread and significant Arctic outbreak likely reaching us here around Tuesday. As far as snow is concerned, low pressure will approach by Sunday night bringing us a chance for snow and/or rain into Monday.
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The flood gates appear to have opened up for multiple Arctic air masses to plunge from northwestern Canada/Alaska into the US over the next few weeks and this type of weather pattern will surely increase the odds for snow around here. By no means is there anything set in stone yet for the snow, but the unfolding weather pattern will be much more favorable compared to recent weeks. One Arctic blast is already being felt today across the northwest and north-central part of the country and will arrive here later tomorrow/tomorrow night. By Friday, temperatures will be confined to the 30’s for the afternoon highs, strong NW winds will produce even lower wind chill values, and there can be some snow shower activity. A second Arctic blast will drop out of Canada into the northern US early next week and it should arrive here during the middle of next week. Looking even farther ahead, there are signs for yet another (third) Arctic blast to follow as we progress into the second half of December.
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Low pressure just off the Mid-Atlantic coastline this morning will move away to the northeast and a cold front will approach from the northwest later in the day. Colder air will push into our region on Thursday following the passage of the frontal system and by Friday, temperatures will be confined to the 30's for highs. In addition, winds will increase by Friday generating even lower wind chill values and there can be a snow shower or two. The below-normal cold will continue through the upcoming weekend and it looks like there will be additional Arctic blasts into the eastern US over the next couple of weeks.
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