The combination of an upper-level trough, high moisture content in the lower atmosphere, and a weak frontal boundary zone will be enough to result in very unstable atmospheric conditions in the Mid-Atlantic region from later today into early tonight enhancing the chance for severe thunderstorm activity. A somewhat similar setup will continue the chance of showers and thunderstorms on Tuesday, the 4th of July, with the greatest chance once again coming during the afternoon and early evening hours. Not all areas will get hit during this next 36 hours, but any thunderstorm that does form can contain torrential downpours, damaging wind gusts, hail and even an isolated tornado or two. The overall unsettled weather pattern that began in late June may relax a bit on Wednesday and Thursday; however, it should resume in full force by the end of the shortened work week and continue through the upcoming weekend.
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A front will approach the region later today and likely bring with it afternoon and evening showers and thunderstorms. Any thunderstorm later today and early tonight can be on the strong side with heavy rain and gusty winds. Unfortunately, the frontal system will hang nearby on Tuesday - the 4th of July - and the weather will be pretty much a repeat performance of today with the chance of PM showers and thunderstorms. The front will dissipate some by mid-week and the chance of showers and thunderstorms may become somewhat diminished on Wednesday and Thursday; however, the overall unsettled weather pattern lasts right into the upcoming weekend.
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The day will begin with weak high pressure in control, but a frontal system will approach the region late and this will raise the chance for afternoon and evening showers and thunderstorms. With a couple of nearby frontal systems this weekend, both days should feature plenty of clouds and the continuing chance of showers and thunderstorms. It’ll remain unsettled going into the early part of next week with an additional frontal system dropping into the area from our northwest.
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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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The weather pattern will settle down some from today into the first part of Friday as weak high pressure pushes into the Mid-Atlantic region. While a shower or thunderstorm cannot be completely ruled out this afternoon, any activity should be isolated and it’ll become less humid compared to recent days. The weather tonight and on Thursday should be rain-free for a change with comfortably warm temperatures for late June. The unsettled weather pattern returns to the DC metro region later Friday as frontal systems head our way and it can remain so into the early part of next week with a renewed chance of 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 this afternoon into early tonight. Some of the PM storms can reach strong-to-severe levels and some of the rain will be heavy at times. 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 DC 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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