The stubborn “closed” upper low that has been impacting our weather since the weekend will finally slide to the northeast today as it “opens up” enough aloft to get captured by the polar jet. As a result, our weather will improve today featuring plenty of sunshine with comfortably warm conditions. A cold front will then drop slowly southeastward on Thursday crossing the Great Lakes and reaching the Mid-Atlantic region by late in the day. At the same time, a new upper-level low will develop over the Mid-Atlantic region and surface low pressure is likely to form along the cold frontal boundary zone. The end result should be more showers and thunderstorms around here from later tomorrow into Friday and perhaps even a period of steadier rain. The weekend and early part of next week are shaping up quite nicely with increasing amounts of sunshine expected on Saturday and mostly sunny skies on Sunday and Monday. Beyond that, another unsettled period develops in the Mid-Atlantic region by later Tuesday and Wednesday of next week with a Gulf system likely to ride up along the Atlantic seaboard.
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A “closed-off” upper-level low pressure system will continue to produce bands of showers today in the Mid-Atlantic region and there can be some strong thunderstorm activity as well during the afternoon and evening hours. The stubborn “closed” upper low will edge to the northeast on Wednesday as it “opens up” enough to get captured by the polar jet and our weather should improve at mid-week though a shower or two cannot be ruled out.
A cold front will then drop southeastward on Thursday crossing the Great Lakes and reaching the Mid-Atlantic region by late in the day. At the same time, another upper-level low will develop over the Mid-Atlantic region and surface low pressure is likely to form along the cold frontal boundary zone. The end result could be more showers and thunderstorms around here from later Thursday into Friday and perhaps even a period of steadier rain. The weekend could turn out to be pretty decent with increasing amounts of sunshine on Saturday and mostly sunny skies on Sunday. However, upper-level lows are notorious for throwing some curve balls to the weather forecaster so not quite ready yet to give the “all-clear” signal about the weekend.
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Some spots in the Mid-Atlantic region were hit by drenching showers and thunderstorms this past weekend while other locations (often right nearby) received much less rain than anticipated. There will be opportunities for more rain in all areas through tomorrow night and some of the rain can be heavy at times. A slow-moving upper-level low pressure system currently centered over the Ohio Valley will continue to produce unstable atmospheric conditions in the region leading to additional bands of showers and thunderstorms.
While the weather settles down a bit on Wednesday as the upper-low grudgingly lifts its way to the northeast of here, there can still be a few showers in the area and perhaps even a thunderstorm or two. A cold front will then drop southeastward on Thursday crossing the Great Lakes and reaching the Mid-Atlantic region. At the same time, an upper-level low will try to re-develop over the Mid-Atlantic region and low pressure may form along the frontal boundary zone. The end result could be more showers around here later Thursday and potentially even some steadier rain from Thursday night into Friday. The weekend may turn out pretty well assuming the late week systems push off to the north and east of here.
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A prolonged and significant rain event is coming to the Mid-Atlantic region that can actually take us from drought conditions to flooding problems. Several inches of rain will be possible in some spots by the time we get to the middle of next week and strong-to-severe thunderstorms will be included in the mix as well.
Today will turn out to be quite warm and noticeably more humid than yesterday following the passage of a warm front. Temperatures this afternoon should reach into the 80’s and there are likely to be scattered showers and thunderstorms going into the evening hours. On Saturday, a cold front will head towards the east coast and showers and thunderstorms will become increasingly likely as we go through the afternoon hours and then they’ll continue during the evening. Some of the storms that form later tomorrow and tomorrow night and be strong-to-severe and some of the rain will be heavy at times. Looking ahead, the upper part of the atmosphere will evolve into a classic “omega-block” pattern and one that can produce occasional rain in the Mid-Atlantic region from Sunday into the middle of next week. Some of this rainfall is likely to be heavy at times with additional strong-to-severe thunderstorms on the table during the first half of next week.
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The change of calendar to the month of May is bringing a changing weather pattern that is likely to result in a prolonged and significant rain event for the Mid-Atlantic region...something not seen in these parts in quite awhile. While there can be scattered showers and thunderstorms between tonight and late Saturday, the main event is likely to begin on Saturday night with widespread showers and thunderstorms and occasional rain will be a threat on Sunday, Monday, Tuesday and perhaps Wednesday as well in the Mid-Atlantic region to go along with cooler conditions. The upper part of the atmosphere is evolving into a classic “omega-block” pattern which will allow for cooler and rainy weather to stick around for several days in the Mid-Atlantic region, and this should alleviate drought and fire-hazard conditions endured during the past several weeks.
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There is a growing chance that a prolonged and significant rain event is coming to the Mid-Atlantic region…something not seen in these parts in quite awhile.
While there can be some shower and thunderstorm activity from later today into later Saturday, the main event likely begins on Saturday night with heavier and steadier rainfall and then rain is likely to be a threat on Sunday, Monday, Tuesday, and perhaps even Wednesday as well. A warm front lifts through the region tonight with some shower activity and then Friday will turn into a very warm and humid day with scattered showers and thunderstorms…much of the day should be rain-free. On Saturday, a cold front will head towards the eastern US and showers and thunderstorms will become increasingly likely by the time we get to Saturday evening. Some of the rain late Saturday/Saturday night can be heavy at times with the arrival of the cold front and there can be strong-to-severe thunderstorm activity included.
Looking ahead, the upper-level pattern will evolve into an “omega-block” situation and one that can produce occasional rain and cooler conditions in the Mid-Atlantic region from Sunday into the middle of next week. Some of this rainfall during the first half of next week can be heavy at times and this unfolding scenario could put a real dent in any drought conditions that remain in the area.
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Powerful thunderstorms that pounded western and central Pennsylvania last night fell apart by the time they reached the eastern third of the state due to the very dry air in place around here and also the overall weakening of the support in the upper atmosphere. High pressure returns to the area today as a weak cold front settles just to our south. This same frontal system will turnaround later tomorrow and lift through the area as a warm front with some shower activity and perhaps a thunderstorm. It’ll turn out quite warm and downright humid on Friday with an occasional shower and an afternoon or evening thunderstorm is possible; however, much of the day should be rain-free. More widespread shower activity is expected for Saturday as a cold front arrives and then an upper-level low form in the eastern US and produce additional unsettled weather around here during the early part of next week.
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A warm front lifts through the area today and it will become quite warm with afternoon highs near 80 degrees and there should be plenty of sunshine with increasing southerly winds. A cold front arrives tonight and it can bring with it some shower activity...perhaps even an isolated thunderstorm or two. High pressure returns at mid-week, but the weather then becomes quite unsettled for the late week and early part of the weekend with a couple of low pressure systems impacting the Mid-Atlantic region.
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There have been numerous colder-than-normal air masses in recent weeks pushing into the central and eastern US from Canada and also into the western US from the eastern Pacific Ocean. The continuing influx of these colder-than-normal air masses along with an active jet stream has led to numerous severe weather outbreaks in recent weeks. Indeed, severe weather is likely later today and tonight with a focus on the Upper Midwestern states of Minnesota, Wisconsin, Iowa and Illinois though some severe thunderstorm activity can extend all the way south and west to the south-central states of Texas and Oklahoma. The overall pattern that has produced these occasional cold air and severe weather outbreaks in the US looks quite likely to last at least into the first part of May with a risk next Monday and Tuesday in the nation’s mid-section.
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The week starts off with high pressure in control and there will be plenty of sunshine today with temperatures likely peaking in the low-to-mid 70’s during the afternoon hours after a chilly start. After a dry and warm day on Tuesday, showers will be a threat on Tuesday night with the arrival of a frontal system. High pressure returns for the mid-week and partial sunshine on Wednesday should boost temperatures to the middle 70’s. Low pressure and associated frontal systems will result in unsettled weather conditions later this week into the weekend with the threat of showers from time-to-time and perhaps a thunderstorm or two.
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