A cold front will only slowly push through the region during the next 24 hours or so leading to more unsettled weather featuring scattered showers and thunderstorms. Drier air should take over later in the weekend and the early part of next should be mainly rain-free as high pressure intensifies over the Northern Plains. By the middle of next week, hot weather conditions will return to the Mid-Atlantic region with 90+ degrees back on the table for afternoon highs.
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A cold front will approach the area later today and push through from Friday into early Saturday. As a result, showers and thunderstorms are likely; especially, during the afternoon and evening hours. Some of the rain can be heavy today and localized flash flooding is a possibility. While a shower or thunderstorm cannot be ruled out this weekend, it’ll tend to become drier in the Mid-Atlantic region following the passage of the frontal system.
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High pressure tries to build into the region today, but the atmosphere is still loaded with low-level moisture and scattered showers will be the result. A cold front will approach the area on Thursday and push through from Friday into early Saturday. As a result, the chance of showers and thunderstorms returns later tomorrow and will likely continue on Friday. No extreme heat is in sight for the Mid-Atlantic region such as what we experienced last week and during the holiday weekend.
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Low pressure will slowly pull off to the north and east today, but the atmosphere will remain unstable enough for scattered showers and thunderstorms...greatest chance of which will come during the afternoon and early evening hours. High pressure builds into the area on Wednesday likely leading to a rain-free day, but the chance of showers and thunderstorms returns later Thursday and Friday as a new frontal system moves in from the west.
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There will be additional showers and thunderstorms today in the Mid-Atlantic region and some of the rain can be heavy at times…watch out for localized flooding conditions. While humidity levels will be high during the next couple of days, temperatures will be more manageable with afternoon highs generally in the 80’s across the metro region. High pressure builds into the area at mid-week and then the chance of showers and storms will return again for Thursday and Friday.
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The turn of the calendar on Wednesday from June to July will come with the arrival of the hottest weather of the year so far and it’ll persist into the upcoming holiday weekend. In fact, temperatures can reach or even slightly surpass the 100 degree mark for afternoon highs during the second half of the week and humidity will be at very uncomfortable levels as well. Intense upper-level ridging of high pressure will be a key player during this upcoming heat wave as it becomes centered over the northeastern states for a several day period and influences the entire DC-to-Boston I-95 corridor.
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The month of June has been relatively benign in terms of overall temperatures along the I-95 corridor, but the flip to July on Wednesday will set off the atmospheric furnace in the northeastern states. The time period from tomorrow through Saturday, the 4th of July, will feature afternoon high temperatures near or even slightly above the 100-degree mark in much of the DC-Boston corridor with record highs in jeopardy. Intense upper-level high pressure ridging will be the key player and catalyst for the excessive heat and humidity in the northeastern part of the nation. At the same time, the western states will enjoy colder-than-normal conditions with deep upper-level trough persisting in that part of the nation.
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The turn of the calendar on Wednesday from June to July will come with the arrival of the hottest weather of the year so far for the Mid-Atlantic region and it’ll persist into the upcoming holiday weekend. Temperatures can reach or even surpass the 100 degree mark during the second half of the week for afternoon highs and humidity will be at very uncomfortable levels as well. Intense upper-level ridging of high pressure will be a key player during this heat wave as it becomes centered over the Great Lakes for a several day period and influences the entire DC-to-Boston I-95 corridor.
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The threat of showers and thunderstorms has returned to the Mid-Atlantic and the risk will continue through tomorrow night as a frontal system only painfully slowly works its way through the region. In addition, low pressure will ride along the frontal boundary zone from the central Plains and it can enhance rainfall around here on Saturday. The second half of the weekend and early part of next week should feature dry and quite warm conditions and then a hot spell begins on Tuesday and likely continues through the rest of the week with afternoon highs well up in the 90’s all along the I-95 corridor.
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An overall active weather pattern across the nation will continue into the month of July and it is currently resulting in some severe weather across the central Plains and also the risk of flash flooding. In fact, the risks of severe weather and flash flooding will extend well to the east during the next few days and likely reach the Mid-Atlantic region at the start of the upcoming weekend. Low pressure and a painfully slow-moving frontal system will play key roles in the unsettled weather conditions into the weekend. Looking ahead to next week, hot weather will push into the DC-to-Philly-to-NYC corridor by Tuesday and high temperatures well up in the 90’s are likely in the big cities through the end of the work week.
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