The first half of the new work week will be relatively quiet and mild in the Mid-Atlantic, but the weather turns quite active later this week as a deepening upper-level trough slides into the eastern states. This strong upper-level trough will become a slow-mover thanks to intense blocking high pressure to the north over northeastern Canada. At the surface, an initial low pressure system will head towards the Great Lakes in the late week time period and then a secondary low should form near the northern Mid-Atlantic coastline. The end result of this unfolding scenario will be rain and possible thunderstorms in the Mid-Atlantic region from late Wednesday into early Thursday and then windy, colder conditions to follow for the next few days. Accumulating snow is likely during this event across interior, higher elevation locations of the Mid-Atlantic region from update PA to upstate NY, and interior New England can get hit hard as well by the end of the week.
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Nice weather returns to the region for the late week and weekend with high pressure taking back control. Both weekend days should feature plenty of sunshine and mild conditions with temperatures climbing well up into the 60’s.
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The last day of the work week will feature dry and mild conditions and afternoon highs not too far from 60 degrees. It turns cooler for the weekend and then colder early next week with highs likely confined to the 30’s by Tuesday and Wednesday. A low pressure system could arrive here around Tuesday of next week bringing us a chance of snow in the metro area.
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Low pressure moves off the Carolina coastline this morning and there will be gradual clearing across our region with an increase in winds from the northwest. High pressure ridging will edge into the area for the weekend leading to dry, cool conditions and winds will remain quite noticeable on Saturday as the pressure gradient remains strong between the departing low and incoming high. Temperatures today will likely peak in the middle 50’s for afternoon highs and then climb to near the 60 degree mark on both weekend days.
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Low pressure moves off the Carolina coastline this morning and there will be gradual clearing across our region with an increase in winds from the northwest. High pressure ridging will edge into the area for the weekend leading to dry, cool conditions and winds will remain quite noticeable on Saturday as the pressure gradient remains strong between the departing low and the incoming high. Temperatures today will likely peak in the mid-to-upper 50’s for afternoon highs and then climb to or slightly above the 60 degree mark on both weekend days.
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Low pressure moves off the Carolina coastline this morning and there will be gradual clearing across our region with an increase in winds from the northwest. High pressure ridging will edge into the area for the weekend leading to dry, cool conditions and winds will remain quite noticeable on Saturday as the pressure gradient remains strong between the departing low and incoming high. Temperatures today will likely peak in the mid-to-upper 50’s for afternoon highs and then climb to the lower 60’s on both weekend days.
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It is not all that unusual for the “last hurrah” of an Atlantic Basin tropical season to be followed by an influx of winter-like cold into the central and eastern US and, in some cases, it is a “pattern-changing” type of event. One such example of this kind of scenario unfolded with Hurricane Sandy at the end of October during 2012 which was then followed by a colder-than-normal month of November in almost all areas east of the Mississippi River. (In fact, cold air not only followed Hurricane Sandy, but actually wrapped into it with as much as 3 feet of snow piling up in portions of West Virginia during that event). It appears that this tropical season may finally wind down after the ultimate demise of the latest system now over the Caribbean Sea and cold air intrusions into the central and eastern may become much more commonplace beginning late next week. The tropical system is likely to intensify into a named tropical storm (“Sara”) in the near-term, but an extended time period over land will likely reduce its potential impact on the US Gulf coast.
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A cool front and a developing low pressure system will approach the I-95 corridor from the west later today and they will combine to produce rainfall in the DC metro region from mid-to-late afternoon until late tonight. High pressure returns to the region for Friday, Saturday, and Sunday leading to a 3-day stretch of dry and cool weather conditions and the wind will be quite noticeable at times.
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A cool front and a developing low pressure system will approach the I-95 corridor from the west later today and they will produce showers; primarily, to the south of the PA/MD border. As a result, while areas to the south of the Mason-Dixon Line experience occasional rain later today and tonight, the Philly metro region may receive nothing more than an evening shower or two from these weather systems. High pressure returns to the region for Friday, Saturday, and Sunday leading to a 3-day stretch of dry and cool weather conditions and the wind will be quite noticeable at times.
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A frontal system and its associated low pressure system will impact the region today bringing us the chance of showers and thunderstorms. Nicer weather returns for the late week and weekend with high pressure returning to the region.
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