It’ll remain warm today ahead of an approaching cold front and the chance of showers will increase in the afternoon…maybe even a late day/early evening strong-to-severe thunderstorm. The best chance for a strong-to-severe thunderstorm will likely end up being across southern New Jersey and the Delmarva Peninsula. It’ll turn cooler on Friday following the passage of the cold frontal system with a chilly air mass moving into the northeastern states. High pressure with its origins in Canada will take control of the weather and there may be only limited sunshine on Saturday, but plenty on Sunday.
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A line of thunderstorms extends this morning all the way from Texas to the central Great Lakes and tornado watches as issued by the National Weather Service encompass this entire zone. This severe weather outbreak represents just the latest in a series of recent “clashes” in the atmosphere between cold, dry air to the west charging into warm, humid air to the east. Strong surface low pressure over the northwestern Great Lakes is generating blizzard conditions across the Dakotas and a powerful surface cold front extends from the center all the way south into the northern Gulf region. This same cold front reaches the eastern seaboard later Thursday and while certainly not as widespread of a threat as today, there is the chance for some strong-to-severe thunderstorm activity near the coast. Following the passage of the cold front, a chilly Canadian-borne air mass will push into the Great Lakes/Northeast/Mid-Atlantic for the upcoming Easter weekend.
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It’ll stay warm today in the Philly metro region, but there will be some cloudiness and fog through the morning and a late day shower cannot be ruled out. The weather becomes more unsettled on Thursday with the approach of a strong surface cold front edging this way from the Ohio Valley. It’ll remain warm tomorrow with a gusty SW wind and afternoon/evening showers are likely…maybe even a strong-to-severe thunderstorm. The best chance for a strong-to-severe thunderstorm will likely end up being across New Jersey and the Delmarva Peninsula. It’ll turn cooler on Friday following the passage of the cold frontal system with a chilly air mass moving into the northeastern states. High pressure with its origins in Canada will take control of the weather and there should be some sunshine on both weekend days; however, it’ll feel quite cool in the shade and during nighttime hours.
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Warmer air on the south side of a warm front will dominate the scene here today and on Wednesday as well and then a cold front will push towards the region from the Ohio Valley. Ahead of the front, the chance of showers will rise later tomorrow and tomorrow night and the passage of the system on Thursday may be accompanied by a strong to potentially severe thunderstorm. It’ll turn cooler on Friday following the passage of the frontal system with a chilly air mass moving into the northeastern states. High pressure with its origins in Canada will take control of the weather for the weekend and there should be some sunshine on both days; however, it’ll feel quite cool in the shade or during the nights.
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There have been back-to-back weeks with severe weather outbreaks in the US and it looks like another one is on the way from later tomorrow into Wednesday. The areas of concern include the Mississippi and Ohio Valleys and the ingredients that will come together to destabilize the atmosphere include jet streaks at multiple layers, cold, dry air mass charging to the south and east, and warm, humid air flowing northward from the Gulf of Mexico. Tornadoes are running at above-normal levels across the nation so far this season thanks in large part to the recent two outbreaks and, unfortunately, many more are likely from later tomorrow into Wednesday. Meanwhile, in the cold sector of the storm system, the air will be cold enough for accumulating snow all the way from the Rockies to the Dakotas and, in some spots, this could amount to as much as 1-2 feet.
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High pressure will stay in control of the weather around here today and it’ll become breezy and much milder after a frosty start to the new work week. Warmer air on the south side of a warm front will dominate the scene on Tuesday and Wednesday and then a cold front arrives on Thursday. It’ll turn somewhat cooler on Friday following the frontal passage and - at this vantage point - it appears high pressure may be in control around here for the upcoming Easter weekend.
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Strong low pressure over the eastern Great Lakes this morning continues to wreak havoc across the nation. Last night, tornadoes broke out from the Mississippi Valley to the Ohio Valley and, in the cold sector of the storm, accumulating snow fell across the Northern Plains and Upper Midwest. Snow continues today across the Great Lakes region this morning and powerful potentially damaging winds have reached the Mid-Atlantic region to along with rain, scattered strong thunderstorms, and very mild conditions. A dry slot should result in some sunshine this afternoon in the I-95 corridor which will only boost chances for late day/evening severe weather with damaging wind gusts, hail and even isolated tornadoes on the table.
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It turns much milder today with afternoon temperatures peaking in the lower 60’s. Showers will be possible this afternoon and winds will increase in strength. Temperatures will climb to even higher levels on Saturday just ahead of an incoming strong cold front perhaps reaching the 70 degree mark. There will be occasional showers on Saturday and Saturday night to go along with those unseasonably warm conditions and perhaps even a thunderstorm. A big factor on Saturday and Saturday night will be the winds with gusts to 40-50 mph on the table. Despite some sunshine, it’ll be noticeably cooler on Sunday following the passage of the strong cold front with temperatures nearly 20 degrees lower than Saturday and there will be a stiff NW wind as well.
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Tornadoes are running at above-normal levels across the nation so far this season and there is the likelihood for another outbreak on Friday night centered on the Mississippi Valley region. In much the same manner as at the end of the last week, the atmosphere will become very unstable by Friday night in the Mississippi Valley region with a multitude of ingredients coming together including vigorous upper-level support, an intrusion of warm, humid air from the Gulf of Mexico ahead of a strong surface cold front, and an influx of cold, dry air from the north and west behind it. A similar weather pattern late last week resulted in an outbreak of tornadoes across Mississippi and Alabama that tragically resulted in the death of at least 26 people. The powerful cold front that will play a major role in the severe weather outbreak on Friday night will plow eastward through the Tennessee and Ohio Valleys and into the eastern states possibly resulting in damaging wind gusts of 50-60 mph in those sections of the country.
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