Yesterday’s rain and thunderstorm activity in the Mid-Atlantic region is just the opening round in what is looking like a very active weather pattern for much of the nation in the foreseeable future. The next ten days or so will feature wave-after-wave traveling across the country in a general west-to-east fashion and each one can produce snow over the Rockies and New England, severe weather in the central and southern states, and significant rain in the Mid-Atlantic region. In fact, its been somewhat dry in recent weeks in much of the south-central and eastern US and these are the regions that are most likely to get pounded with significant rainfall in this unfolding active weather pattern. The next event is already taking shape and likely to arrive here on Friday. The late week event is likely to become a significant rain producer for the Mid-Atlantic region with up to two inches possible in parts of the I-95 corridor from Friday into Saturday. Beyond that, it appears the next wave in a series of waves will arrive here around next Tuesday of next week and this too has the potential of resulting in some soaking rainfall for the Mid-Atlantic region, and then yet another one could follow by the end of next week.
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Today's soaking rain and thunderstorm activity in the Mid-Atlantic region appears to be just the opening round in what is looking like a very active weather pattern for much of the nation in the foreseeable future. The next ten days or so will feature wave-after-wave traveling across the country in a general west-to-east fashion and each one can produce snow over the Rockies and in New England, severe weather in the central and southern states, and significant rain in the Mid-Atlantic region. In fact, its been somewhat dry in recent weeks in much of the south-central and eastern US and those are the regions that are most likely to get pounded with significant rainfall in this unfolding active weather pattern.
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Yesterday, a warm front produced showers in the region and today low pressure will combine with a cold front to generate additional rain and perhaps a couple of strong thunderstorms, some of the rain can fall heavily later today. Canadian high pressure will build into the area late tonight and on Wednesday and we’ll cool down some for much of the second half of the week. Another low pressure area will approach by the end of the week and more rain is likely on Friday and this could turn into a significant rain event for the Mid-Atlantic region.
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Unsettled weather will be the rule for the first couple of days of the new work week. A warm front will advance through the area today and then a cold front will approach on Tuesday and both systems will generate showers in the area with a thunderstorm also possible later tomorrow. Canadian high pressure will return by the middle of the week and we’ll turn colder and then it becomes unsettled again by week's end.
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There will be a rebound in temperatures this afternoon as Arctic high pressure pushes off the east coast and a southwesterly flow of air develops in the Mid-Atlantic region. This transition to milder weather will be accompanied by occasional showers later this morning and a few ice pellets can mix in across the northern suburbs. By tomorrow afternoon, temperatures should climb to 60 degrees; however, it’ll cool down once again on Sunday and Monday and there will be a pretty good chance for some rain shower activity on both days.
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Arctic high pressure will move directly overhead today and this will result in a dramatic reduction in winds compared to yesterday as the pressure gradient relaxes throughout the Mid-Atlantic region. There will be a rebound in temperatures on Friday as the high pressure system pushes off the east coast and a southwesterly flow of air develops in the region. This transition to milder weather may be accompanied by a touch of rain or a wintry mix tomorrow morning, but nothing significant is expected. By Saturday afternoon, temperatures should climb towards the 60 degree mark; however, it’ll chill down once again on Sunday and Monday and there will be a pretty good chance for some rain shower activity on both days.
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A strong cold front dropped through the region last night and ushered in yet another Arctic air mass which will keep us well below normal for the next couple of days. In addition to the cold, the winds will be quite strong today lowering wind chill values considerably from the actual air temperatures. Low temperatures should fall way down into the upper teens in many suburban locations by early tomorrow morning. It stays colder-than-normal on Thursday, but the winds should die down noticeably as Arctic high pressure moves overhead from the Ohio Valley and the pressure gradient relaxes. There will be a rebound in temperatures on Friday and then even warmer conditions as we begin the weekend, but a cool down is likely on Sunday and Monday along with an increasing chance of showers.
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After a milder day today, a strong cold front will drop through the region from the north in the overnight hours and usher in another Arctic blast for the Mid-Atlantic region. As a result, temperatures on Wednesday and Thursday will again be way below normal for this time of year. High pressure will then push off the coast late in the week and we’ll rebound in temperatures on Friday, actually reach warm levels on Saturday, but then we’ll likely cool down again on Sunday as we likely close out the weekend with some rain.
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After a cold weekend, it’ll turn a bit milder for today and Tuesday. A strong cold front, however, will put an end to the milder conditions as another Arctic cold blast arrives by tomorrow night. In fact, temperatures on Wednesday and Thursday will once again be way below normal for this time of year; however, a noticeable warm up should take place by the early part of the weekend.
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The next system to deal with in the Mid-Atlantic region will be a “clipper” system that drops southeastward from the Great Lakes later today and tonight. This system will feature three different phases that will produce a variety of weather conditions in the Mid-Atlantic region including the threat for accumulating snow on the front and back ends; primarily, in areas north of the PA/MD border. After another cold day on Sunday following the “clipper” system, it’ll turn milder early next, but then another major cold air outbreak arrives at mid-week with significantly below-normal temperatures.
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