The day begins with filtered-sunshine again as skies remain smoke-filled from wildfire activity across Canada and the NW US. A cool front will approach the region later in the day and bring with it an increased chance of showers and thunderstorms - some of the storms can be on the strong side. A very comfortable air mass for late July will follow the passage of the frontal system resulting in a nice day on Thursday and it'll stay pretty comfortable around here on Friday and Saturday as well.
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Skies will be mainly sunny today in the Mid-Atlantic region, but the sun will be dimmed somewhat by smoke-filled skies that is coming from wildfire activity up in Canada and the sunset tonight could be quite "orange" if it isn't cloudy. A frontal system will arrive later tomorrow and it will raise the chance for showers and thunderstorms. Following the passage of the frontal system, high pressure from the Great Lakes region will slide towards the Mid-Atlantic and pretty comfortably warm air for late July will push in for the Thursday/Friday/Saturday time period.
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All in all, the coming week will feature seasonably warm temperatures for late July and plenty of sunshine on a daily basis. High pressure is in control as we begin the week and a frontal system will push through at mid-week. Following that mid-week frontal passage, another high pressure system will take control in the latter part of the week and likely stick around into the upcoming weekend resulting in more seasonal weather conditions for the DC metro region.
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A slow-moving frontal system to our northwest will inch its way into the Mid-Atlantic region this weekend and then grind to a halt. Low pressure will form along the stalled-out frontal boundary zone enhancing the chance here for showers and thunderstorms and some of the rain this weekend can be heavy at times. High pressure off the coast will resume control early next week and it'll stay on the warm, humid and unsettled side. Looking ahead, there are some favorable signs for a refreshing air mass to move into the northeastern part of the country by the end of next week or during the following weekend.
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High pressure off the east coast that has been in control of the overall weather pattern around here for several days will begin to break down as we head to the weekend. A slow-moving frontal system to our northwest will inch its way into the Mid-Atlantic region this weekend and then stall out. Low pressure will form along the stalled-out frontal boundary zone over the weekend enhancing the chance for showers and thunderstorms and some of the rain can be heavy. High pressure off the coast will resume control early next week and it'll stay on the warm, humid and unsettled side. Looking ahead, there are some favorable signs for a refreshing air mass to move into the northeastern part of the country by the end of next week or following weekend.
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High pressure remains anchored off the east coast and will continue to push warm and humid air into the Mid-Atlantic region. A frontal system will approach the area later today and the result will be yet another chance of late day and evening showers and thunderstorm and any storm that forms can produce heavy rainfall. The high pressure system over the western Atlantic will tend to breakdown later this week and another disturbance is likely to increase the chance for rain at week’s end and going into the weekend. There is a chance that some of the rain that falls this weekend can be on the heavy side.
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A low-level flow of air from off the ocean today will keep plenty of clouds in the area and cut temperatures down to the lower 80's for afternoon highs. The remainder of the week looks quite warm and continued humid and there will be a shot at additional showers and thunderstorms. There will be a couple of frontal systems to deal with after today, but the main player will be strong high pressure over the western Atlantic which will pump in very warm and humid air to the region on a continuous basis.
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We have certainly heard this warning multiple times this spring and summer…”the potential exists for strong-to-severe thunderstorm activity in the DC-to-Philly-to-NYC corridor and any storm can produce heavy rainfall, frequent lightning and damaging wind gusts”. In fact, the overall weather pattern will remain on the wet side through the remainder of the week across the eastern half of the nation including in the DC, Philly and NYC metro regions with multiple chances of additional showers and thunderstorms.
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This will be quite an unsettled week in much of the eastern half of the nation which will include a daily shot of showers and thunderstorms in the Mid-Atlantic region. Any storm that forms later today into tonight can be on the strong side and produce some heavy rainfall. There will be a couple of frontal systems to deal with over the next few days, but the main player will be high pressure off the east coast which will continuously pump in very warm and humid air to the region. Temperatures will climb well up into the 80’s each day this week for afternoon highs and high dew points will make for quite uncomfortable conditions.
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Tropical Storm Elsa is situated near the coast of New Jersey this morning and continues to accelerate to the northeast. Heavy rain pushing through upstate New Jersey and the NYC metro region will wind down later this morning, but an advancing cold front will bring scattered afternoon thunderstorms to much of the Mid-Atlantic region. The weekend begins with a comfortably warm and likely rain-free day, but a stalling frontal system will bring an unsettled weather pattern here for the first half of next week.
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