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 somewhat 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. The chance of showers will increase around here later today and there will be a daily threat of showers 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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The Atlantic Basin tropical scene has come to life in recent days with two systems located in the tropical Atlantic. The front running system has reached named tropical storm status (“Bret”) and it could very well intensify into a hurricane during the next couple of days as it heads towards the eastern Caribbean Sea. Later in the week, however, a few factors are likely to come together to cause a weakening of this initial tropical system. A second system following closely behind Bret could reach named tropical storm status as well in coming days (would become “Cindy”) as it heads on a general westward track.
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The weather is becoming more unsettled in the Mid-Atlantic region and there will be a daily shot at rain from mid-week through the upcoming weekend. High pressure to our north combined with low pressure to our south will intensify an easterly flow of air at the lower levels of the atmosphere keeping us on the cool side of normal during the next few days and quite moist. As we head to the weekend, the weather will turn warmer and the threat of showers will continue and thunderstorms will be added to the picture. Elsewhere, the tropical Atlantic has come to life with a couple of systems to monitor. The front running system has reached tropical storm status (now named “Bret”) and it can become a hurricane in the near-term; however, weakening is likely for this system thereafter as we head towards the weekend.
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High pressure builds southward into the northern Mid-Atlantic for the next couple of days and then the weather will get unsettled for much of the second half of the week. Low pressure and a large area of moisture will dominate the scene in the southeastern states later this week and this system can spread showers to the north at times into the Mid-Atlantic region. Elsewhere, the tropical scene has come to life in the eastern Atlantic and a couple systems will have to be monitored in coming days. The front running system is very likely to intensify into at least tropical storm status over the next few days, but it is unknown whether its ultimate path will take it to the Caribbean Sea or if it will shift to the north and east of the Windward Islands. The second system has a smaller chance of intensifying into tropical storm status.
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Low pressure will drop southeast from the Great Lakes today bringing a widespread rain event to the Mid-Atlantic region. Occasional showers and thunderstorms will begin as early as mid-day in many areas, some of the rain is likely to be heavy at times and some of the thunderstorms can be strong-to-severe. This system should then push only slowly to the northeast, meander over New England on Saturday, and keep it somewhat unsettled here with breezy conditions and the chance for a shower or thunderstorm during the mid-day or afternoon hours. Father’s Day Sunday promises to feature plenty of sunshine in the Mid-Atlantic region and warm conditions.
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High pressure returns to the Mid-Atlantic region today, but another system will renew our chances for showers and thunderstorms on Friday and some of the storms can be strong. Low pressure will drop southeast from the Great Lakes on Friday and it looks like it will bring a widespread and welcomed rainfall to the Mid-Atlantic region. This system should then only slowly push northeast and it’ll meander over New England on Saturday keeping it somewhat unsettled around here with the chance for a couple of showers and a thunderstorm as we begin the weekend. Father’s Day Sunday promises to be full of sunshine and warm with high temperatures in the 80’s.
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After a nice day on Tuesday with low humidity and comfortable temperatures, the mid-week will become unsettled as an upper-level low spins nearby helping to destabilize the atmosphere. As a result, there can be showers at anytime today and PM thunderstorms are on the table as well and any of these can produce brief downpours and small hail. High pressure returns for Thursday and then another front can cause some shower and thunderstorm activity on Friday to close out the work week.
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Much-needed rainfall fell in the Mid-Atlantic region on Monday with 1-2 inches commonplace across eastern Pennsylvania, northern Delaware, and western New Jersey. The next several days will bring additional chances of rain to the area with the first threat coming on Wednesday as an upper-level low pressure system moves close by. As a result, the atmosphere will destabilize later tomorrow as colder air moves in aloft and an outbreak of showers and thunderstorms is quite likely. In fact, some of the thunderstorms that do form later tomorrow can become quite strong with brief downpours and small hail a possibility. Another batch of showers is possible on Friday as another upper-level low spins its way into the Mid-Atlantic region and yet another disturbance can raise the chances for rain in the Monday/Tuesday time frame.
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