An upper-level disturbance combined with surface low pressure off the Mid-Atlantic coastline will keep it unsettled around here into tomorrow raising the possibility of scattered showers and thunderstorms. By mid-week, high pressure will edge into the area and temperatures will respond nicely and soar into the 80’s all along the I-95 corridor. A few more weak disturbances will keep it unsettled around here during the latter part of the week and weekend and it’ll stay quite warm for this time of year.
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Expansive high pressure is producing a nice end to the work week in the Mid-Atlantic region with plenty of sunshine and warm conditions, but circumstances are about to change quite dramatically. Ingredients are coming together for a significant coastal storm to develop near the Mid-Atlantic coastline during the next 12-24 hours and it is quite likely to produce a soaking rainfall for Philly, DC and New York City as we begin the weekend.
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A strong coastal storm will bring a soaking rainfall to the DC metro region late tonight and Saturday, but first we'll enjoy a nice Friday as large high pressure controls the weather around here for one more day. By tomorrow, intensifying low pressure will head towards the Mid-Atlantic coastline and the result around here will be a dreary, much cooler day to start the weekend with periods of rain, a persistent NE wind, and some of the rain can be heavy at times. Clouds will tend to hang on for Sunday and a few lingering showers are likely throughout the Mid-Atlantic region. Another disturbance will pass through the region on Monday and it could generate a shower or thundershower as we begin the new work week, but there will be much rain-free time as well. By the middle of next week, temperatures should climb to the 80 degree mark for highs from DC-to-Philly-to-NYC.
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Large high pressure to our northwest will control the weather for the next couple of days generating noticeably milder and dry conditions. Intensifying low pressure will head towards the Mid-Atlantic coastline on Saturday and the result around here will likely be a dreary day with periods of rain and a possible thunderstorm. Clouds will tend to hang on for Sunday and a couple of lingering showers cannot be ruled out.
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Here we go again…by the time the weekend begins the upper air pattern will closely resemble the “omega” blocking pattern of a couple weeks ago featuring an impressive upper-level trough over both the east and west coasts and extensive high pressure ridging in the middle of the country. The upper-level trough in the eastern states will help to intensify low pressure on Saturday as it treks from the Ohio Valley to the Mid-Atlantic coastline. As a result, rain is likely to push into the DC-to-Philly-to-NYC corridor by late Friday night or early Saturday morning and then continue heavy at times through most of the day in much of the Mid-Atlantic region; especially, to the south of the PA/MD border .
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High pressure to our northwest will gradually build into the region later today and tonight and it should control the weather around here on Thursday and Friday. Some improvement is possible later this afternoon following morning clouds and possible showers from another weak disturbance pushing through the local area. The next couple of days will feature plenty of sunshine and comfortable temperatures as we fall under the influence of the large northern high pressure system. By the weekend, it looks like strong low pressure will head towards the Mid-Atlantic coastline and periods of rain are likely around here along with a possible thunderstorm – this could end up being a significant rain event.
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Low pressure will gradually pass through the Mid-Atlantic region over the next 24 hours or so bringing with it more rain to the local area. Large high pressure to our north should clear things out for the latter part of the work week. Another low pressure system is likely to bring more rain to the Mid-Atlantic region this weekend.
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Temperatures started off in the upper 30’s in some suburban locations early this morning and despite a full day of sunshine, it’ll stay quite chilly for this time of year to start the new work week and there will still be a noticeable breeze. Low pressure is then expected to cross the Mid-Atlantic region from Tuesday into Wednesday bringing with it the chance of showers. Large high pressure should clear things out for the latter part of the work week.
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A cold frontal system will generate showers in the Mid-Atlantic region today and strong thunderstorms can mix into the picture as well. Following closely on its heels, a secondary cold frontal system is to arrive later Saturday and bring with it another round of showers and possible strong-to-severe thunderstorms. Behind that second cold front, much cooler air will push into the region for the Sunday/Monday time frame and overnight low temperatures could dip into the upper 30’s in some suburban locations. In fact, snowflakes are possible in the high elevations of western Maryland and eastern West Virginia during this next cold air outbreak. It’ll turn warmer later next week, but there will also be multiple chances for rain and some of it may be on the heavy side.
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High pressure to our north is battling with a stalled out frontal system to our south for control of our weather. While sunshine will dominate today north of the PA/MD border, it looks like clouds will hold on in the immediate DC metro region. Then, as the next front approaches, showers will return to the area later tonight and continue on Friday and there can be a thunderstorm or two. A secondary cold front will arrive late Saturday and bring with it another round of showers and perhaps a thunderstorm. Behind that second cold front, much cooler air will push into the region for Sunday/Monday and overnight low temperatures could drop to the 30’s in some suburban locations.
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