A cold front pushed through the region late yesterday and building high pressure will assure nice weather today with plenty of sunshine, comfortable temperatures and lowering humidity levels. Unfortunately, the high will quickly depart and low pressure with its associated frontal system will head our way on Thursday from the Ohio Valley bringing rain and thunderstorms to the Mid-Atlantic region. The good news is that high pressure will return at the end of the week and we should enjoy another nice weekend in the DC-to-Philly-to-NYC corridor.
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An active weather pattern over the next few days will bring two shots of strong-to-severe thunderstorm activity to the Mid-Atlantic region with damaging wind gusts, hail and even isolated tornadoes on the table. The first shot comes this afternoon and early evening primarily to the southern half of the Mid-Atlantic with the DC and Baltimore metro regions especially vulnerable as a cold front arrives from the northwest. A second opportunity will come on Thursday and this one looks even more impressive and is likely to be more widespread as a vigorous low pressure system and its associated cold front heads to the local area from the Ohio Valley. The good news is that all of this activity will quiet down at the end of the week as high pressure builds into the Mid-Atlantic and it looks like we are in store for another nice weekend.
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A cold front arrives in the Mid-Atlantic region later today with scattered showers and thunderstorms and some of the storms can be on the strong side. High pressure will then briefly regain control on Wednesday, but low pressure from the Upper Midwest will quickly follow on its heels on Thursday bringing with it occasional rain and possible thunderstorms. Some of the rain on Thursday can be heavy and some of the thunderstorms can be on the strong-to-severe side. Looking ahead, it looks nice for Friday and the weekend as high pressure returns to the region.
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High pressure across the Northeast US provided us with nice weather for the weekend and it’ll hold on for another day as we begin the new work week. By late tonight, a trough of low pressure will swing through the area with an isolated shower and thunderstorm and then a cold front arrives late tomorrow with scattered showers and thunderstorms. High pressure briefly regains control on Wednesday, but then low pressure will push in from the Ohio Valley on Thursday bringing with it occasional rain and possible thunderstorms. High pressure then returns for the end of the week and weekend.
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Nothing but good news for the upcoming weekend in the Mid-Atlantic region with plenty of sunshine, light winds, and comfortable temperatures on both days. Sprawling high pressure across the Upper Midwest and Northeast US will be in control this weekend and we'll have to wait until late Tuesday for the next shot at showers and thunderstorms from the next cold frontal system. Elsewhere, a very strong upper-level ridge of high pressure is now setting up over the Southwest US and it will bring tremendous heat on Sunday, Monday and Tuesday to places like Las Vegas, Phoenix and Death Valley. No excessive heat is in sight for the Mid-Atlantic region.
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A couple of low pressure systems will move southeastward along a boundary zone and keep it somewhat unsettled around here into tomorrow with an occasional shower possible and maybe even a thunderstorm; however, most of the action will stay to our southwest. The weekend will likely turn out quite nice thanks to sprawling high pressure across the Upper Midwest and Northeast US. Elsewhere, low pressure will try to form near or just off the Southeast US coastline this weekend and then head out towards the open ocean. However, beyond that there are signs that it could actually "back-in" towards the Mid-Atlantic coastline early next week and we'll have to monitor that possibility in the coming days.
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After a couple of nice and quiet days to start the week, the weather in the Mid-Atlantic region will become more unsettled today and into the late week time period. An upper-level disturbance combined with a nearby surface low pressure system will bring about an increasing chance for showers around here by tonight and this threat will continue on Thursday as well. The weekend, however, is looking quite nice as high pressure will likely be sprawled out across the entire Northeast US. At the same time, low pressure will try to form near or just off the Southeast coastline. For now, it looks like the high pressure system will win out around here for both days of the weekend.
Elsewhere, strong upper-level ridging will bring tremendous heat to portions of the Southwest US in the Sunday through Tuesday time period. Phoenix, AZ could hit 120 degrees by late in the weekend and Death Valley, CA has an outside chance to top out at 130 degrees early next week - a feat not reached there since 1913.
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Low pressure still persists across southeastern Canada and it is helping to keep temperatures around here pretty close to normal for this time of year. Later this week, the frontal system that stalled to our south may get close enough to increase the chances for showers and thunderstorms in this region. The weekend will feature high pressure across the Northeast US and low pressure will try to form near or along the Southeast US coastline. For now, it appears the high pressure system will win out around here this weekend, but we may have to watch for low pressure to back in towards the Mid-Atlantic coastline by early next week.
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A cold front slipped through the region yesterday and an upper-level low now sits over New England as we begin a new work week. This unusually strong system for this time of year will keep it quite breezy around here today and temperatures will remain quite comfortable. That same cold front that passed through yesterday will stall out to the south of here today, and it could return with showers and thunderstorms during the second half of the week.
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High pressure will move overhead today and we’ll have a nice day to close out the work week. The weekend will become more active as a warm front pushes through by early tomorrow and then a cold front follows on its heels by later Sunday. The result will be another round of showers for the NYC metro region later tomorrow and early tomorrow night and thunderstorms could also mix into the picture with a few possibly reaching strong-to-severe levels. It’ll turn much warmer and more humid on Saturday following the passage of the warm front and it'll stay warm on Sunday as well.
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