The combination of an approaching cold front and an upstream batch of showers and thunderstorms will keep it very unsettled around here during the afternoon and nighttime hours. Any thunderstorm that develops later today or tonight can be on the strong-to-severe side with some heavy rainfall and gusty winds. This same frontal system will meander just to the south of here through the remainder of the week maintaining the unsettled conditions as several waves of low pressure move along the boundary zone. High pressure may take back control of the weather later in the weekend.
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The holiday weekend will start off on the unsettled side with a slow-moving frontal system in the Mid-Atlantic region on Saturday. This system is likely to generate scattered showers and thunderstorms as we begin the long weekend and some of the storms can be on the strong side. A shower or thunderstorm is still possible on Sunday and on Monday - the 4th of July - but the chances will be lower than during the beginning stages of the weekend. Looking ahead, a northwest flow aloft could result in another round of severe weather for the Mid-Atlantic/Northeast US by the middle of next week from a system that is headed for the Upper Midwest.
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The heat and humidity will build over the next couple of days with temperatures by tomorrow afternoon climbing into the low-to-mid 90’s. The holiday weekend will start off on the unsettled side on Saturday with a slow-moving frontal system in the Mid-Atlantic region. This system is likely to generate scattered showers and thunderstorms as we begin the long weekend and some of the storms can be on the strong. A shower or thunderstorm is still possible on Sunday and on Monday - the 4th of July - but the chances will be less than during the beginning stages of the weekend.
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After a comfortable day on Tuesday, the heat and humidity will begin to slowly build up over the next couple of days and by the time we get to Friday afternoon, we’ll be uncomfortably humid with temperatures likely reaching the middle 90’s. The 4th of July holiday weekend will start off on the unsettled side on Saturday with a slow-moving frontal system in the Mid-Atlantic region and it could very well remain somewhat unsettled on Sunday as well. The chance of showers and thunderstorms will be pretty high on Saturday afternoon and evening and the rain threat could linger into Sunday. One final note, there is a whiff of wildfire smoke noticeable this morning in the Mid-Atlantic region that originated in the southern part of Canada and traveled here on a northwest-to-southeast wind flow in the mid-levels of the atmosphere.
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A cold front passed through the region late yesterday and today will be a comfortable day in the Mid-Atlantic region with pleasant temperatures and much lower humidity values than yesterday. It turns much warmer and humid again by later in the week with highs at 90+ degrees by Thursday afternoon and Friday. The weekend could at least start off somewhat unsettled with a frontal system nearby on Saturday and possible scattered showers and thunderstorms.
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It’ll be quite humid today, but not as warm as yesterday, and there is a good chance for showers and thunderstorms as a cold front crosses the region. This front will usher in another comfortable air mass for the Mid-Atlantic region setting us up for a nice Tuesday and a still pretty comfortably warm day at mid-week. Temperatures will then climb back to the 90’s later in the week and the holiday weekend is looking somewhat unsettled from this vantage point as a frontal system likely stalls in the region. As a result of the nearby frontal system, there may be scattered showers and thunderstorms on both Saturday and Sunday.
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After an unseasonably cool day on Thursday, a warming trend will begin today boosted in large part by the return of sunshine. High temperatures this afternoon should end up in the lower 80’s and then near 90 degrees is likely this weekend with sunshine on both days. Another comfortable air mass will move into the Mid-Atlantic region early next week following the passage of a cold front that can result in showers and thunderstorms late Sunday night and Monday.
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The weather remains somewhat unsettled today with a nearby stationary front and a continuation of the shower threat, perhaps a thunderstorm. The combination of clouds and a low-level ocean flow of air will keep temperatures well below-normal for this time of year with highs in the lower 70’s. A warming trend will begin on Friday and the weekend will become quite warm with sunshine on both days. Another cool front will arrive by the early part of next week ushering in another comfortable air mass for the Mid-Atlantic region.
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This past Father’s Day weekend featured spectacular weather conditions in the Mid-Atlantic/Northeast US with comfortable temperatures for the middle of June and low humidity values. Indeed, the spring season as a whole has seen numerous cool air masses push into this part of the nation from Canada moving along in a general northwest-to-southeast fashion. In fact, almost all areas across the northern US have experienced near normal to below-normal temperatures back to the beginning of 2022. It appears that these cool blasts from Canada will continue across the northern states next week and beyond into at least the first part of the month of July.
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The weather becomes much more unsettled today in the Mid-Atlantic region as a stationary frontal system stalls over the area and a low pressure system develops along the boundary zone. This low will ultimately move from Virginia to the Carolinas and it can enhance rainfall here this afternoon and tonight with localized flash flooding on the table; especially, in the western suburbs of DC. Any thunderstorm this afternoon or tonight can be locally severe with some heavy rainfall and damaging winds on the table. High pressure returns later in the week and then another strong cool front approaches the area by the early part of next week.
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