A major-league cool-down is coming to the Mid-Atlantic region and the transition from the high heat and humidity to the well below-normal temperatures will come with heavy rainfall, strong-to-severe thunderstorms, and localized flash flooding. A slow-moving cold frontal system will approach the area later today from our north and west, but then only be able to inch its way through the Mid-Atlantic region during the next 24 hours as low pressure forms along its boundary zone. Widespread showers and thunderstorms are likely from early this afternoon into the late-night hours and total rainfall amounts can end up being excessive in some spots raising the concern for potentially significant flash flooding. Much cooler air moves in on Friday on the back side of the slowly departing cold front and low pressure system and we are setting up for one of the nicest weekends of the summer season with very comfortable temperatures and humidity levels.
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The overall weather pattern remains hot and humid across the southeastern states for the next couple of days with showers and thunderstorms from time-to-time. A frontal passage late in the week will usher in somewhat cooler air with highs generally confined to the 80’s for the upcoming weekend and early part of next week.
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Today begins a transition in the NYC metro region from the high heat and humidity of the past few days to much cooler conditions expected here on Friday...the first day of August. A cold front will slowly grind its way through the area later today and tonight as low pressure forms along the boundary zone. Showers and thunderstorms will become numerous for the afternoon and nighttime hours…some of the rain is likely to be heavy at times, some of the storms can be strong, and localized flash flooding is on the table. Showers can linger on Friday morning and the day will be noticeably cooler (jacket weather) with well below-normal temperatures. In addition, an east-to-northeast wind will be quite noticeable in the counter-clockwise flow of air around departing low pressure off the coast. Clearing skies should develop on Friday night and the first weekend of August may turn out to be one the nicest of the entire summer season featuring very comfortable temperatures and low humidity values.
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It remains moderately warm for the next couple of days in the Denver metro region with the chance for showers and thunderstorms from time-to-time. A drier and warmer weather pattern begins this weekend and continues into early next week.
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Today begins a transition in the Philly metro region from the high heat and humidity of the past few days to much cooler conditions expected here on Friday...the first day of August. A cold front will slowly grind its way through the area later today and tonight as low pressure forms along the boundary zone. Showers and thunderstorms will become numerous for the afternoon and nighttime hours…some of the rain is likely to be heavy at times, some of the storms can be strong, and localized flash flooding is on the table. Showers can linger on Friday morning and the day will be noticeably cooler (jacket weather) with well below-normal temperatures. In addition, an east-to-northeast wind will be quite noticeable in the counter-clockwise flow of air around departing low pressure off the coast. Clearing skies should develop on Friday night and the first weekend of August may turn out to be one the nicest of the entire summer season featuring very comfortable temperatures and low humidity values.
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Today begins a transition in the DC metro region from the high heat and humidity of the past few days to much cooler conditions expected here on Friday...the first day of August. A cold front will slowly grind its way through the area later today and tonight as low pressure forms along the boundary zone. Showers and thunderstorms will become numerous for the afternoon and nighttime hours…some of the rain is likely to be heavy at times, some of the storms can be strong, and localized flash flooding is on the table. Showers can linger on Friday morning and the day will be noticeably cooler (jacket weather) with well below-normal temperatures. In addition, a north-to-northeast wind will be quite noticeable in the counter-clockwise flow of air around departing low pressure off the coast. Clearing skies should develop on Friday night and the first weekend of August may turn out to be one the nicest of the entire summer season featuring very comfortable temperatures and low humidity values.
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Temperatures on Tuesday afternoon peaked at 98 degrees in Philadelphia - tying a record for the date from 2002 – and most other sections in the Mid-Atlantic region experienced high heat and humidity. Today will also be a day of high heat and humidity, but big-time relief is coming by Friday and it’s not out of the question that jackets may be required as we close out the work week (and begin the new month of August). A slow-moving cold frontal system will approach the area later tonight from the north and west, but then only be able to inch its way through the Mid-Atlantic region from tomorrow into tomorrow night as low pressure forms along its boundary zone.
Showers and thunderstorms are likely to be somewhat limited in coverage later today and tonight and then they should become more numerous and widespread on Thursday afternoon and night. Some of the rain will be heavy at times during the PM hours on Thursday, some of the storms can be strong-to-severe, and localized flash flooding is on the table. Showers may linger on Friday – the first day of August - and the day will feature a stiff east-to-northeast wind with low pressure pulling away from the east coast. Clearing skies will set in late Friday night and the first weekend of August may turn out to be the nicest weekend of the entire summer season with comfortable temperatures and low humidity levels.
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The overall pattern has become cooler and more moist and it’ll remain like this for the remainder of the week. Temperatures should be confined to the low-to-mid 80’s for the next few days and then climb to 90+ degrees again for the weekend.
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Today will be another very hot and humid day with plenty of sunshine during the morning hours and then increasing clouds later in the afternoon. The late day clouds will be in advance of a slow-moving cold frontal system which can result in isolated showers and thunderstorms through the evening hours. More numerous showers and thunderstorms are likely on Thursday in what will be a big-time transition day for the Mid-Atlantic region from the high heat and humidity of the first half of the week to much cooler conditions by week’s end.
As the cold front slowly grinds its way through the area, low pressure will form along the boundary zone and increase the chances for some heavy rainfall on Thursday and Thursday night and localized flash flooding is a possibility. Showers can linger on Friday - the first day of August - and the day will be much cooler with well below-normal temperatures and a stiff E-NE wind. Clearing skies should develop later Friday night and the first weekend of August should turn out to be one of the nicest of the entire summer season with very comfortable temperatures and low humidity values.
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Today will be another very hot and humid day with plenty of sunshine during the morning hours and then increasing clouds later in the afternoon. The late day clouds will be in advance of a slow-moving cold frontal system which can result in isolated showers and thunderstorms through the evening hours. More numerous showers and thunderstorms are likely on Thursday in what will be a big-time transition day for the Mid-Atlantic region from the high heat and humidity of the first half of the week to much cooler conditions by week’s end.
As the cold front slowly grinds its way through the area, low pressure will form along the boundary zone and increase the chances for some heavy rainfall on Thursday and Thursday night and localized flash flooding is a possibility. Showers can linger on Friday - the first day of August - and the day will be much cooler with well below-normal temperatures and a stiff E-NE wind. Clearing skies should develop later Friday night and the first weekend of August should turn out to be one of the nicest of the entire summer season with very comfortable temperatures and low humidity values.
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