Weak high pressure will remain in control of the weather as we head into the weekend, but then a couple of frontal systems will bring an unsettled weather pattern back to the Mid-Atlantic region. The threat of showers and thunderstorms will increase later tomorrow and there is a chance for some heavy rainfall late Sunday and Sunday night.
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Weak high pressure will stay in control of the weather today in the Mid-Atlantic region providing us with rain-free conditions and seasonably warm conditions. A couple of frontal systems will head this way by the weekend making for unsettled weather conditions from later tomorrow into early next week with a renewed chance of showers and thunderstorms.
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While there is still the threat today for scattered PM showers and thunderstorms, a break in the action is likely on Thursday as weak high pressure moves into the region with rain-free conditions expected. The unsettled pattern returns to the NYC metro area by late Friday and likely sticks around into early next week as a stalling-out frontal system renews the chance here for showers and thunderstorms.
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A very unsettled weather pattern will continue today in the Mid-Atlantic region as low pressure from the Great Lakes edges to the south and east along with a slow-moving cool frontal system. As a result, more showers and thunderstorms are likely from later today into tonight. Some of the storms can reach strong-to-severe levels and some of the rain can be heavy. Weak high pressure will attempt to improve conditions later Wednesday and Thursday limiting the chance of rain; however, the overall unsettled weather pattern will stay intact through the upcoming weekend with a renewed chance of showers and storms on Friday, Saturday and Sunday as a frontal system stalls in the area.
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The atmosphere will quickly destabilize today in the Mid-Atlantic region raising the chance for severe thunderstorm activity later today and early tonight. Any thunderstorm can produce large hail, damaging wind gusts and even isolated tornadoes. Torrential rainfall can lead to flash flooding conditions in the Mid-Atlantic region; especially, in those areas hit hard by downpours this past weekend. The threat for strong-to-severe thunderstorms will continue on Tuesday and the overall wet weather pattern looks like it’ll resume at week’s end after a short-break and continue into the first half of next week.
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A very unsettled weather pattern continues for the Mid-Atlantic region during the next couple of days that will include the chance for severe thunderstorms and torrential downpours. Any storm later today and tonight can produce hail, damaging wind gusts and even an isolated tornado. Torrential rainfall can produce localized flash flooding conditions. Low pressure will push to the Great Lakes today and a cold front will edge its way into the eastern states and this frontal system will not clear the area until mid-week. Later today, the upper-level support of low pressure over the Great Lakes will tend to become “negatively-tilted” and that will enhance upward motion in the region resulting in an increasingly unstable atmosphere and the potential of those severe thunderstorms. Weak high pressure should improve overall conditions by Thursday, but unsettled weather returns going into the weekend.
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After an unseasonably cool day on Thursday, it’ll turn slightly warmer today, but still below-normal for this time of year. The atmosphere will remain quite unstable with the chance of showers and thunderstorms and this unsettled pattern is likely to last well into next week. Some of the rain today in the NYC metro region can be heavy at times and some of the storms can be strong. Temperatures should peak in the mid-to-upper 70’s this afternoon and then reach 80+ degrees this weekend and early next week. A cool front will enter the picture later Monday enhancing the chance for strong-to-severe thunderstorm activity in the Mid-Atlantic region.
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The overall weather pattern has evolved into one that will be considerably wetter for the Mid-Atlantic region in coming days compared to what was experienced earlier this month and during May. Today will be unseasonably cool with a persistent ocean flow of air (i.e., east-to-northeast winds) given the combination of high pressure to the north and low pressure to the south. There can be a shower from time-to-time today or some patchy drizzle, but significant rainfall is not looking too likely. More rain is destined to arrive here later tonight and for Friday and there can be a thunderstorm or two mixed in…some of the rain late tonight and tomorrow can be heavy at times. A daily threat of showers and thunderstorms this weekend looks like it will continue through much of next week. Conditions do turn warmer on Friday and then temperatures likely reach into the 80’s during the weekend and early part of next week.
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Lawns were turning brown and soil moisture was at very low levels earlier this month and during the month of May in much of the Mid-Atlantic region. There have been a couple of rain events in the past couple of weeks that have alleviated the dry conditions; especially, in areas to the north of the PA/MD border. The overall weather pattern is now evolving into one that will bring copious amounts of rainfall to the Mid-Atlantic region in coming days and it may get to the point in which many will say “we’re now getting too much of a good thing”.
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A wet weather pattern is unfolding for much of the eastern US including the Mid-Atlantic region which has been quite dry in recent weeks. An upper-level trough situated over the Tennessee Valley will edge northward in coming days and with it quite a moist air mass. Showers will become a threat here by later tonight and there will be a daily threat of showers and thunderstorms from tomorrow into early next week. In terms of temperatures, the next couple of days will feature below-normal conditions as a stiff easterly flow of air brings in cooler marine air to the area. By the end of the week and for the upcoming weekend, conditions will become noticeably warmer with high temperatures back to 80+ degrees on Friday, Saturday and Sunday.
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