Low pressure is now intensifying over the Tennessee Valley and it has tremendous support in the upper part of the atmosphere with a vigorous wave of energy and a powerful jet streak. This developing storm will have a wide ranging impact in the eastern US over the next 24 hours or so with severe weather in the southeastern states, heavy rain/strong thunderstorms and potential flooding in the Mid-Atlantic region, and significant snow across interior sections of the Northeast US.
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The cold front that pushed through the region in the early morning hours on Wednesday will turn around today and move to the north as a warm front. As a result, the cold conditions that start the day will give way to milder weather this afternoon as low pressure starts to pull in this direction from the Tennessee Valley. This low pressure system will have lots of support in the upper atmosphere resulting in a soaking rain event around here from later today into early Friday. A strong cold front will push across the region on Friday and the winds should increase noticeably with gusts past 40 mph possible out of the northwest. Over the weekend, a weak wave of energy will head into the eastern states and it may produce a bit of snow in the region on Saturday night or Sunday.
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An active weather pattern will result in freezing rain for parts of the Mid-Atlantic region during the next 12-24 hours and heavy rainfall is likely from later tomorrow into early Friday with the potential of flash flooding. A strong cold frontal passage last night has resulted in a dramatic drop in temperatures from yesterday’s unseasonably mild conditions and they will drop quite close to the freezing mark in several of the northern and western suburbs along the I-95 corridor. Meanwhile, another batch of rain will arrive here from the Tennessee Valley and this can result in freezing on some surfaces in these normally colder locations. This same front will push back to the north as a warm front on Thursday and pave the way for a strong low pressure system to generate heavy rainfall from later tomorrow into early Friday.
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An active weather pattern will produce a chilly rain around here later today and tonight and there can be freezing on some surfaces well to the north and west in the overnight hours. A strong cold frontal passage in the overnight hours has resulted in a dramatic drop in temperatures from yesterday’s warmer-than-normal levels and they should drop to the low-to-mid 30's to the N and W later tonight. This same front will then push back to the north as a warm front later tomorrow and pave the way for a strong low pressure system to generate some heavy rainfall around here from tomorrow night into early Friday and the possibility of flash flooding. Yet another low pressure system will move eastward from the Ohio Valley this weekend and it could generate some snow here from Saturday night into early Sunday or a mix of snow and rain.
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An active weather pattern will produce a freezing rain threat in the Mid-Atlantic region from later tomorrow into early Thursday, a heavy rain and flash flooding threat from Thursday night into early Friday, and then perhaps some accumulating snow from Saturday night into Sunday. A strong cold frontal passage in the overnight hours will result in a dramatic drop in temperatures from this afternoon’s well above normal levels to more winter-like conditions on Wednesday and Wednesday night. The same front will then push back to the north as a warm front late Thursday and pave the way for a strong low pressure system to generate some heavy rainfall around here from Thursday night into early Friday. Yet another low pressure system could generate some accumulating snow in the Mid-Atlantic region during the upcoming weekend.
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An active weather pattern will result in inclement weather around here right through the end of the work week with multiple low pressure systems impacting the Mid-Atlantic region. Today’s system will be rather weak and should not result in a soaking rain event, but only occasional light showers, and then a cold front will sink through the region later tonight. As a result of the frontal passage, temperatures will drop noticeably from the quite mild levels of today to the chilly 30’s by later tomorrow and this could lead to some freezing rain from later tomorrow into early Thursday in the far northern and western suburbs. That same front will then turn around and push back to the north by early Thursday night and the last in a series of low pressure systems – perhaps the strongest of the week – will likely produce some heavy rainfall here Thursday night into early Friday. Yet another low pressure system may impact the Mid-Atlantic region this weekend and this one could result in some accumulating snow around here from Saturday night into Sunday.
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After a cool weekend, temperatures will rise noticeably today as high pressure strengthens in the Southeast US. In fact, temperatures should climb to near 60 degrees as we begin the new work week and it’ll stay mild for the next couple of days as well. Unfortunately, the warm up will come with numerous chances of rain as a slow-moving cold front becomes the focus area for multiple waves of low pressure. Rain is possible on each day from tomorrow through Friday – some of it is likely to be heavy at times - and we’ll have to watch for the outside chance of some frozen precipitation later in the week as colder air seeps into the Mid-Atlantic region.
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The month of February begins on Saturday and it’ll turn quite warm in the Mid-Atlantic region by the beginning of the work week and some records may be broken. In fact, it looks like it’ll become much warmer-than-normal in DC, Philly and NYC in the Monday-to-Wednesday time period and potentially into Thursday as well. Unfortunately, the warm up next week will come with numerous chances of rain as a slow-moving cold front becomes the focus area for multiple waves of low pressure.
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High pressure over New England today will move towards the Canadian Maritimes later today and low pressure will form near the Carolina coastline in the overnight hours. This low will move to a position well off the Mid-Atlantic coastline by later tomorrow and then an upper-level feature passes overhead tomorrow night. High pressure returns early next week and it’ll turn noticeably warmer in the Monday through Wednesday time period with 65 degree highs on the table. A slow-moving cold front will then impact the region during the second half of next week with multiple shots of rain as low pressure ripples along the frontal boundary zone.
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Low pressure is likely to form near the Carolina coast on Friday night and then intensify as it moves to the northeast on Saturday. Some precipitation is likely to reach back into the I-95 corridor on Saturday as the low moves to a position well off the Mid-Atlantic coastline. With temperatures only moderately cold around here, odds favor mainly rain during the daytime hours on Saturday. On Saturday night, a northern stream wave of energy will move overhead and it can cause some rain or snow shower activity as temperatures aloft will drop some. After a chilly day on Sunday, it’ll turn noticeably warmer next week for a few days before some colder air makes a return after mid-week.
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