An active weather pattern will bring multiple waves of energy across Canada and the US over the next couple of days and two of these – one in the northern stream and one in the southern stream - are likely to interact by early Saturday to generate low pressure near the Carolina coastline. This low pressure system is then likely to intensify as it pushes to the northeast to a position well off of the Mid-Atlantic coastline by later Saturday and it can throw some rain and/or snow into the I-95 corridor.
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A weak cold front passed through the region late last night and it’ll usher in a bit colder air for the next couple of days. The overall pattern of chilly and dry weather should continue through the rest of the work week with high pressure still in control. Low pressure will try to intensify near the Carolina coastline on Saturday and it could produce some rain and snow in the I-95 corridor. At this point in time, it doesn't look like a significant event, but it wouldn't take much of a change to get more impact than currently expected. Chilly air will follow for the second half of the weekend and there can be some snow shower activity on Saturday night and early Sunday.
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An active weather pattern will bring multiple waves of energy across Canada and the US over the next few days and a couple of these are likely to interact and generate low pressure near the Carolina coastline on Saturday. The fact that there may be multiple waves competing for energy and that these are rather fast-moving systems may inhibit the storm from intensifying rapidly until after it pushes off the east coast thereby potentially limiting its impact on the Mid-Atlantic region. Temperatures are likely to borderline on Saturday with respect to precipitation type so if precipitation does develop, there would likely be a battle zone in the I-95 corridor between rain and snow. Most of these upper-level waves of energy are still way off in the distance so details on this threat won’t be ironed out until late this week. Looking ahead to next week, there are signs that some of the cold that has been bottled up over Alaska in recent days will finally “break loose” in early-to-mid February and head towards the central and eastern US.
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Strong high pressure has expanded into the eastern US and it should continue to produce dry and moderately cold conditions. Temperatures should climb into the low-to-mid 40’s for highs today, but should be confined to near 40 for the next couple of days. A wave of energy in the upper atmosphere could help to spawn a coastal storm this weekend, but there is still plenty of uncertainty. If a storm were to form, temperatures would be borderline in terms of rain versus snow given the fact that there will not be an Arctic air mass in place as we begin the weekend.
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Strong high pressure will build into the eastern US early this week and it should result in a quiet week with moderately cold and dry conditions for much of the time. Temperatures should climb well into the 40’s for highs each of the next couple of days. There are some signs for storm development near the east coast this weekend, but it’s too early for any kind of certainty and, with no Arctic air in place, it would likely be a battle between snow and rain.
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A soaking rain event is on the way for the first part of the weekend. Strong high pressure has pushed off the east coast and this will open the door for moisture to head this way from the Mississippi and Ohio Valleys. A strong upper-level wave of energy will help to generate surface low pressure over the Ohio Valley later today and then a second system will form nearby on Saturday. This second system will become the focus area for significant rainfall and heavy rain is possible here from late tonight into tomorrow morning. A thunderstorm is also possible during this soaking rain event. On Sunday, some sunshine will return to the Mid-Atlantic region, but it'll be rather chilly with strong NW winds.
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It could be worse….it could be snow although many might prefer that this time of year. A significant rain event is likely for the DC-to-Philly-to-NYC corridor in the Friday night/Saturday time period as a strong wave of energy moves into the Ohio Valley by the early part of the weekend. A wave of low pressure will initially form over the Ohio Valley by later tomorrow and then a secondary system will form near the Mid-Atlantic coastline on Saturday. This secondary system will become the main player and it is likely to result in some soaking rainfall for DC, Philly, NYC and Boston. On the heels of the storm, windy and cold conditions will develop on Sunday and there can be some snow shower activity in the Mid-Atlantic region.
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Strong high pressure overhead will push off the coastline by early tomorrow and this will open the door for moisture to head this way from the Mississippi Valley. A strong upper-level wave of energy will move eastward from the middle of the country and help to generate low pressure over the Ohio Valley on Friday morning. This initial low will actually give way to a secondary low that will form right over the Delmarva Peninsula on Saturday morning and rain can become heavy at times from late Friday night into Saturday morning. It is likely to be cold enough for snow on Saturday only across interior and higher elevation locations of the Mid-Atlantic and NE US. Following the storm, it’ll become windy on Sunday as another cold air mass works its way into the Mid-Atlantic region.
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Strong high pressure centered to our west will continue to dominate the weather around here right into the end of the work week. At that time, attention will turn to a strong wave of energy in the upper part of the atmosphere which will drop into the Ohio Valley by the early part of the weekend and it’ll play an important role in the likelihood of rain in the DC metro region and some of it may become heavy at times. Initially, a wave of low pressure at the surface will push into the Ohio Valley, but ultimately, a secondary system should form and become the main system.
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A strong wave of energy in the upper part of the atmosphere will drop into the Ohio Valley by the early part of the weekend and it’ll play an important role in the likelihood of rain and snow in the Mid-Atlantic/NE US. Initially, a wave of low pressure at the surface will push into the Ohio Valley, but ultimately, a secondary system should form near the Mid-Atlantic coastline. Odds currently favor rain in the I-95 corridor from DC-to-Philly-to-NYC, but a small change in the positioning of the upper level low to the south and east could result in a slightly colder solution for the big cities.
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