Two separate low pressure systems will bring significant rain and possible thunderstorms to the Mid-Atlantic region over the next 48 hours and also to much of the eastern 2/3rds of the nation where it has been quite dry in recent weeks. An eastward-moving frontal system has stalled out in the eastern US and this boundary zone will act as a conduit for copious amounts of moisture to ride along into the Mid-Atlantic region from the Deep South. By the time early Thursday rolls around, many locations along the I-95 corridor from DC-to-Philly-to-NYC will have received 2 or more inches of rainfall from the two different low pressure systems. The front finally clears through the region on Thursday and high pressure with colder conditions will follow for the late week and early weekend. Looking ahead, there can be another significant rain event during the early part of next week and cold air is likely to affect most of the nation by late in the week.
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Two separate significant rain events are headed to much of the eastern US over the next few days where it has been quite dry in recent weeks. A cold frontal system will inch into the eastern states over the next couple of days and two different low pressure systems will ride up along its boundary zone creating two separate rainy periods around here – late tonight/Tuesday and then again from mid-day Wednesday into Wednesday night. The front finally clears through the region on Thursday and high pressure with colder conditions will follow for the late week and early weekend
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Low pressure over the Great Lakes will push a weak frontal system into the area today and there will be a touch of light rain or drizzle at times, but nothing significant. Another weak system could cause a PM shower on Friday and then the weekend will be primarily dry and chilly. Looking ahead to next week, there is a chance for a decent rain event in the Mid-Atlantic region in the Tuesday/Wednesday time frame – something we haven’t seen in quite awhile around here.
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High pressure will build into the area today, but only for a brief time. Low pressure to our northwest will push a weak frontal system our way and that’ll produce a touch of light rain or drizzle at times from late tonight through Thursday. There is an outside chance that some ice pellets mix in with the light rain late tonight/early tomorrow in the far northern and western suburbs. Another weak system will slide into the region on Friday and it too can produce some light rain around here during the PM hours. Looking ahead, we have a chance for some recent rain around here next Tuesday or Wednesday and that hasn't happened in quite awhile.
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We’ll remain colder-than-normal today as the Arctic air mass that arrived here on Saturday night remains in control. A frontal system will approach by Turkey Day and a bit of rain is likely at times and it may be cold enough at the onset for some ice pellets or snow to be mixed in. Another system will keep us unsettled on Friday bringing with it the chance for more showers.
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The anticipated weather pattern change to colder for the Mid-Atlantic region has begun and there will be more frequent cold air outbreaks in the next few weeks compared to the last few. An impressive frontal passage late Saturday drastically changed conditions from the balmy 70’s during the afternoon to the 30’s by late evening along with strong winds, some ice pellets and even snow in many areas. The first true Arctic blast of the season will continue to have its grips on the region both today and tomorrow with temperatures well below normal for this time of year. A frontal system will arrive in the Wednesday/Thursday time frame with showers and just a bit of a warm up.
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Today and Saturday will feature well above normal temperatures in the I-95 corridor, but all of that will change by Sunday with the passage of a strong cold frontal system. This front will blast through the region on Saturday night – perhaps accompanied by rain shower activity - and it will usher in the first true blast of Arctic air this season. As the Arctic air flows over the still relatively warm water temperatures of the Great Lakes this weekend, it will generate the first widespread Great Lakes effect snows of the season for those places just downstream; especially, in higher elevation locations. In fact, given the vast difference in temperatures expected this weekend between the warm water and cold Arctic air, thundersnows could develop explosively resulting in substantial snowfall in some places just downstream. Snow showers could even push into areas east of the mountains later this weekend and reach all the way into the immediate I-95 corridor. Winds on Sunday could gust past 40 mph out of the northwest and temperatures should be confined to the 40’s along with the aforementioned chance of snow showers. It stays quite cold on Monday and Tuesday before a slight warm-up arrives at mid-week. Unfortunately, that mid-week slight warm up will likely be accompanied by a storm system traveling northeast from the Midwest and rain showers are possible here in the Wednesday/Thursday time frame.
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The overall weather pattern begins to turn colder this weekend as there will be more frequent cold shots over the next couple of weeks compared to what we’ve experienced during the past couple of weeks. In fact, one such cold blast will arrive in the Northeast US on Saturday night and it promises to be windy and cold around here on Sunday and Monday following what will be a warm end to the week. Temperatures on Friday afternoon ahead of the weekend cold blast should soar well into the 60’s and then they’ll likely be confined to the 40’s on Sunday and Monday afternoons. This weekend cold blast will lead to the first widespread Great Lakes snow event in areas just downstream of the lakes and there could even be some snow shower activity pushing into areas east of the mountains and into the I-95 corridor.
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The overall weather pattern begins to turn colder this weekend as there will be more frequent cold shots in the next couple of weeks compared to what we’ve experienced during the past couple of weeks. In fact, one such cold blast will arrive in the Northeast US on Saturday night and Sunday promises to be windy and cold around here following what will be a warm end to the week. Indeed, temperatures on Friday afternoon ahead of the weekend winter blast should soar well into the 60’s and then they’ll likely be confined to the 40’s on Sunday afternoon following the frontal passage. This weekend cold blast will lead to the first widespread Great Lakes snow event in areas just downstream of the lakes; especially, in higher elevation locations. There could even be some snow shower activity pushing into areas east of the mountains and into the immediate I-95 corridor on Sunday and Monday as an upper-level low spins around the Northeast US.
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A blast of cold air will rush into the Mid-Atlantic region on Saturday night and Sunday promises to be a wintry day for the region with winter-like chill in the 40's, strong winds and perhaps even some snow shower activity reaching close to or actually into the immediate I-95 corridor region from DC-to-Philly-to-NYC. This weekend cold blast will turn on the Great Lakes snow machine resulting in the first widespread Great Lakes snow event of the season in higher-elevation locations just downstream from the water. This weekend blast of cold air will follow a couple of warm days around here with high temperatures on Friday afternoon soaring well into the 60’s and then returning to near 60 degrees for highs on Saturday ahead of the strong cold front that will be advancing rapidly towards us from the Great Lakes.
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