The next week to ten days or so will feature quite differing weather conditions across the nation with colder-than-normal temperatures across the western half and warmer-than-normal in the eastern half. An upper-level trough of low pressure will park itself over the western US in coming days and a strong ridge of high pressure will center itself over eastern Canada and the eastern US. By the third week of October, this upper-level ridge of high pressure may “retrograde” back into central Canada and this shift could allow for a big cool down in the Mid-Atlantic/Northeast US by the 18th or 19th of October.
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High pressure parked over northern New England will remain as the main player in the Mid-Atlantic region during the next couple of days providing us with partial sunshine and plenty of moisture in low-levels of the atmosphere. Low pressure will develop near the coast this weekend generating cooler, breezy and unsettled conditions including a threat of rain which can turn out to be on the heavy side in parts of the Mid-Atlantic.
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The lower levels of the atmosphere will remain quite moist through the week with the combination of strong high pressure to our northeast and an upper-level low pressure system nearby. As a result, there will be plenty of clouds around and a threat for some late night patchy fog. Another low pressure system will approach the region this weekend and this system will enhance the chance of showers and bring us cooler temperatures.
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Our stretch of dry weather in the Mid-Atlantic region has come to an end and it’ll be somewhat unsettled for the next several days. A weak cold front will try to push through the region today and it’ll result in possible light rain at times this morning and also help to generate scattered PM showers and thunderstorms. The dominate player for the mid and late week will be a strong high pressure system to our northeast and this will result in onshore flow and a decent amount of low-level moisture in the area.
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High pressure will remain in control of the weather around here through much of the weekend, but clouds will increase later Sunday and showers could fall by late Sunday afternoon or Sunday night. It looks like once the threat of showers returns to the Mid-Atlantic region at the end of the weekend, it’ll stick around for much of next week. In fact, it could turn into quite a wet week with some significant rainfall possible during the second half of next week.
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High pressure will remain in control of the weather here in the Mid-Atlantic region well into the upcoming weekend. The next few days will feature plenty of sunshine and cool conditions with late night lows in the upper 40’s in some suburban locations. Low pressure and its associated frontal system will renew the threat of showers around here by late Sunday or Sunday night and it will likely remain unsettled during the first half of next week with a continuing threat of showers.
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A cold front will clear the region this morning and its passage will pave the way for a stretch of cool and dry weather. Sunshine will return in full force later today, but temperatures will be some 5-10 degrees cooler than yesterday and the breeze may pick up a bit from a northwesterly direction. The next few late nights could feature overnight low temperature readings in the upper 40’s in some of the normally colder suburban locations. In terms of rainfall, high pressure will remain in control during the next few days and virtually assure dry conditions in the Mid-Atlantic region until late Sunday or Sunday night.
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A cold front continues to push slowly to the south and east today generating scattered showers and thunderstorms in the Mid-Atlantic region and it should clear the coast by midnight. As a result, clearing skies will set in late tonight and it’ll turn quite cool by tomorrow morning with a few suburban locations likely to drop into the 40’s. In fact, the next few nights could feature overnight lows in the 40’s in suburban locations to the north and west of the big cities along the I-95 corridor. In terms of rainfall, following today’s frontal precipitation, it looks to be dry for the next few days following today’s precipitation associated with the cold frontal system.
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A cold front will move through the region today and it will result in some shower or thunderstorm activity and some of the storms can be on the strong-to-severe side with small hail as a possibility. The rain will be possible around here any time from mid-day on through the early evening hours. After an evening shower or thunderstorm, skies will clear in the overnight hours and it’ll turn quite cool with early morning lows not far from the 50 degree mark. High pressure will dominate the scene for the second half of the week in the Mid-Atlantic region providing plenty of sunshine and it’ll remain somewhat cooler-than-normal for the latter stages of September and the beginning of October.
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High pressure is in control as we begin the new work week, but the arrival of a weak frontal system will bring some clouds to the area tonight and Tuesday and perhaps a shower or two. Following the front, more high pressure will push into the Mid-Atlantic region and result in generally cool and dry weather for the mid and late week time periods. Meanwhile, Hurricane Sam is churning over the Atlantic and needs to be closely monitored. As high pressure builds into the southeastern part of Canada in coming days, Hurricane Sam could take a turn towards the Northeast US/New England during the upcoming weekend.
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