The coolest air mass of the season so far is now fully entrenched in the Mid-Atlantic region and the day will start off on a chilly note in the DC metro region. With light winds and clear skies expected overnight, the conditions will be ripe for some patchy frost to form in outlying areas. Strong high pressure has expanded into the Mid-Atlantic region from the Midwest and it will stay in control of our weather right through the upcoming weekend.
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Strong high pressure has expanded from the Upper Midwest into the Northeast US and it will stick around in that location for the remainder of the week. From that position, the high pressure will generate a persistent onshore flow for our area through the week and into the weekend. As a result, there will be a daily threat for showers and thunderstorms - given the added moisture from off the ocean - and winds will be quite noticeable from off the ocean.
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A cold frontal system passed through the region late last night and has ushered in the coolest air mass of the season so far and it will stick around into mid-week. In fact, temperatures late tonight should drop to near 40 degrees in many suburban locations and frost is even possible in nearby places to the north and west like northeastern PA and interior upstate New Jersey. The Yankees playoff game will certainly have the feel of October baseball with dry, chill conditions. Strong high pressure will expand eastward from the Upper Midwest later today and control the weather pattern around here right through the rest of the week.
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A cold frontal system passed through the region late last night and has ushered in the coolest air mass of the season so far and it will stick around into mid-week. In fact, temperatures late tonight should drop to near the 40 degree mark in many suburban locations and frost is even possible to the north and west in nearby places like the valleys west of the Blue Ridge. Strong high pressure will expand eastward from the Upper Midwest later today and control the weather pattern around here right through the rest of the week.
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Strong high pressure will expand today from the Upper Midwest and into the Mid-Atlantic region and it will produce a noticeable cool down for the area over the next couple of days. In fact, this strong high pressure will stay relatively stationary over the Mid-Atlantic and remain in control of our weather situation around here for much of the week.
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A cold frontal system passed through the region late last night and has ushered in the coolest air mass of the season so far and it will stick around into mid-week. In fact, temperatures late tonight should drop to the upper 30's in many suburban locations and frost is even possible in nearby places to the north and west like east-central PA, northeastern PA, and interior upstate New Jersey. Strong high pressure will expand eastward from the Upper Midwest later today and control the weather pattern around here right through the rest of the week.
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Strong high pressure is expanding from the Upper Midwest and into the Northeast US today and it will stick around in that location for much of the week. From this position, this high pressure system will generate a persistent onshore flow for the area for much of the week. As a result, there will be a daily threat for showers and thunderstorms given the added moisture from off the ocean and winds will pick up noticeably by the middle of the week.
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Temperatures will stay quite warm for this time of year both today and on Saturday, but a strong cold front will bring about a noticeable change by early next week. Showers and thunderstorms are possible later Sunday into Sunday night as the next cold front arrives and then the winds will pick up by Monday and temperatures will likely be confined to 70 degrees or below for highs as we begin the new work week.
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Strong high pressure draped across southeastern Canada will continue to keep a cool, moist ocean flow of air in place for the region as we close out the work week. As a result, temperatures will remain on the cool side today and there can be some more light rain or drizzle at times. By tomorrow, this area of high pressure will push off the Canadian east coast and our low-level winds will shift to more of a south-to-southwest direction. This will allow us to become warmer on Saturday despite some clouds and perhaps make it to the lower 80’s by Sunday afternoon. Another cold front will arrive here on Sunday night – perhaps with some light rain shower activity – and then another strong high pressure system will expand eastward from the Upper Midwest and we’ll turn cool again for the first half of the new work week.
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The combination of an area of weak low pressure and high pressure moving southward along the Mid-Atlantic coastline will keep us in an onshore flow and this enhanced moisture will generate a good chance of showers and thunderstorms as we close out the work week. This threat for scattered rain will continue on Saturday, but should diminish somewhat on Sunday as there is some drying in the upper part of the atmosphere.
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