High pressure centered over the western Atlantic Ocean continues to pump in warm, moist air to the Mid-Atlantic region and a series of weak fronts will keep it unsettled around here for the next couple of days. The combination of the high humidity and the weak disturbances will result in a chance of showers and thunderstorms right through tomorrow night and some of the rain can be heavy at times. High pressure building over the Great Lakes by week’s end should be strong enough to eliminate the chance of rain around here on Friday, Saturday, and Sunday and temperatures should be pretty close to seasonal norms.
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What a difference a week makes...a week ago the Mid-Atlantic region was experiencing high heat with triple digit highs in some spots and significant rainfall was hard to come by. Severe thunderstorms then took place last Tuesday and Wednesday causing numerous power outages in the Mid-Atlantic region...all part of a transition in the overall pattern that resulted in an influx of cooler air on Thursday. Since then, and for the rest of this week, temperatures will be much closer to seasonal norms with afternoon highs generally in the 80’s and no triple digit heat is in sight for the I-95 corridor. In terms of rainfall, weak winds in the lower and middle atmosphere are contributing to slow movement of showers and thunderstorm cells and - given the high amounts of available moisture - this has increased the chance for some heavy rainfall amounts in a given location and this threat will remain with us through Thursday. Beyond that, high pressure over the Great Lakes is likely to bring about a warm and dry period from Friday through Sunday.
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High pressure centered over the western Atlantic Ocean continues to pump in warm, moist air to the Mid-Atlantic region and a series of weak fronts will keep it unsettled around here for the next few days. The combination of the high humidity and the multiple disturbances will result in a chance of showers and thunderstorms right through Thursday and some of the rain can be heavy at times. High pressure over the Great Lakes by week’s end should be strong enough to eliminate the chance of rain around here on Friday, Saturday, and Sunday and temperatures should be pretty close to seasonal norms.
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Much of the week ahead will feature high pressure centered over the western Atlantic Ocean and from this location a low-level flow of air from the Gulf of Mexico will pump in warm and humid air to the Mid-Atlantic region. The combination of the high humidity and a series of weak disturbances and frontal systems will generate a daily threat of showers and thunderstorms right through the day on Thursday. Many of the showers and thunderstorms that form during the next few days will be slow-movers raising the chance of heavy rainfall over a given location…perhaps resulting in some localized flash flooding conditions.
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A cold front passed through the region early yesterday and ushered in a cooler air mass to the Mid-Atlantic that will result in high temperatures confined to the 80’s during the next few days. High pressure will be in control of the weather through the upcoming weekend, but a shower or thunderstorm can pop up from time-to-time. An upper-level trough and surface frontal system will enter the picture early next week raising the chance of showers and thunderstorms in the Mid-Atlantic region.
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A cold front passed through the region in the overnight hours and has ushered in a cooler air mass to the Mid-Atlantic that will generally feature high temperatures in the 80’s during the next few days. High pressure builds into the area over the next 24 hours and it looks like it’ll stay in control through the upcoming weekend although a shower or thunderstorm can pop up from time-to-time. An upper-level trough and surface front enter the picture early next week raising the chance of showers and thunderstorms to the Mid-Atlantic region.
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It’ll remain hot for one more day in the Mid-Atlantic region, but this current heat wave will come to an end in the overnight hours with the passage of a cold frontal system. The approaching front will produce showers and thunderstorms during the afternoon and evening hours and some of the storms can become severe with heavy rainfall, damaging wind gusts and hail on the table. The passage of the cold front will usher in a cooler air mass for tomorrow and Friday with high temperatures confined to the 80’s.
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The current heat wave in the Mid-Atlantic region likely reaches a peak today with some spots along the DC-to-Philly-to-NYC corridor reaching the 100 degree mark for afternoon highs. Temperatures will remain quite hot on Wednesday, but likely a few degrees lower than today due to more abundant cloud cover ahead of an incoming cold frontal system. Occasional showers and thunderstorms are likely from later today through tomorrow night. Any thunderstorm during this next 36 hours or so can reach severe levels producing torrential rainfall, damaging wind gusts, and hail and, unfortunately, power outages are on the table. The passage of the cold front late Wednesday night will usher in a cooler air mass for Thursday and Friday and the overall weather pattern may not include any more in the way of extreme heat for much of the eastern half of the nation through the remainder of the month of July.
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This latest hot spell in the Mid-Atlantic region began in earnest on Sunday and will continue through tomorrow and it likely reaches a peak this afternoon with some spots in the NYC metro area flirting with the 100 degree mark for afternoon highs. There is the chance of showers and thunderstorms late today, tonight, and especially during the PM hours on Wednesday when a cold front approaches the region from the northwest. Any storm that develops during the next 36 hours can be strong-to-severe and produce heavy rainfall in a short period of time. The passage of the cold front on Wednesday night will usher in a cooler air mass for Thursday and Friday and high temperatures should be confined to the 80’s.
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Hot weather has returned to the Mid-Atlantic region and it’ll last through mid-week with afternoon highs each of the next few days way up in the 90’s. In fact, 100 degree highs are on the table in a few spots on Tuesday afternoon. The 3-day heat wave will not necessarily be rain-free as there is the chance of showers and thunderstorms on an daily basis and any thunderstorm can produce some heavy rainfall. A cold front pushes across the region late Wednesday and its passage will usher in a cooler air mass for Thursday and Friday.
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