An area of showers and embedded thunderstorms has developed across eastern Ohio and West Virginia associated with a cold frontal system and they’ll advance to the east over the next few hours. By later this evening, brief downpours will be possible in the I-95 corridor region and there can be an embedded strong thunderstorm or two as well. High pressure will take over for much of Wednesday and Thursday, but then a strong “clipper” system will create instability in the Mid-Atlantic/NE US on Friday and Friday night with the threat of rain and/or snow showers.
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A strong wave of upper-level energy is pushing across the Midwest this morning and it'll move overhead late in the day and early tonight. As a result, clouds will increase this morning after a bit of a break and rain returns later in the day and continues into early tonight. In addition, there may be enough instability in the atmosphere by late today and early tonight for some strong thunderstorms to form in the I-95 corridor. A cold front sweeps through the region in the overnight hours and tomorrow will turn out noticeably cooler than today and quite windy. A strong clipper system will combine with a southern stream low pressure system in the late week to possibly result in some rain shower activity anytime from Thursday night into Friday night and perhaps some flakes can mix in at times.
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A strong wave of energy is sitting off the coast of southern California at mid-day Monday and it’ll push eastward across northern Mexico and then into Texas by mid-week. This upper-level system will help to spawn the development of a strong surface low pressure system in Texas by early Wednesday and this storm will spread significant rainfall to the southern states from Texas to the Carolinas in the Wednesday/Thursday time period. By late Thursday, the southern low will push towards the Carolina coastline at the same time a northern stream wave of energy drops southeastward across the Great Lakes. This two upper-level features will likely phase together at the end of the week, but it’s a little too early to tell the exact timing and placement of the phase which will have an impact as to how far north and west the southern storm’s precipitation shield can extend. Temperatures are likely to be borderline in the Mid-Atlantic/NE US at the end of the week with respect to rain versus snow; however, colder air will be sitting just to the northwest and it certainly can feed in making this an unfolding scenario to closely monitor in coming days.
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A warming trend will intensify today and it’ll stay quite mild into the mid-week. Temperatures today should climb to the lower 60's this afternoon and then should do a repeat performance on Tuesday. A weak disturbance will bring us the chance for showers later today, tonight and on Tuesday, but it should turn out to be mainly dry at mid-week. A cooling trend will take place later in the week and we'll have to monitor two systems as the week closes out: one system heading to a position off the east coast and a second dropping southeastward across the Great Lakes.
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The weekend will turn out to be quite cold for this time of year in the Mid-Atlantic region and Northeast US, but a warming trend will begin on Sunday across the Mississippi Valley. At the same time, a strong wave of energy in the upper part of the atmosphere will crash into California and this will become one key player in the eastern half of the nation by the middle of next week. The combination of warmer and increasingly humid air and strong energy aloft may very well result in a major rain event next week from the Lower Mississippi Valley to the eastern US.
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A rather tight pressure gradient remains across the Mid-Atlantic region today and this will lead to continued breezy conditions with temperatures remaining on the cold side of normal for late February. A weak disturbance may cause a few rain and/or snow showers today and then a reinforcing shot of cold air will arrive tonight perhaps with a snow shower. As a result, the weekend promises to start off with colder-than-normal conditions, but a warming trend will begin on Sunday. This warming trend will see a return to the 60’s for highs by Tuesday, but the moderation in temperatures will come with an increasing chance of showers.
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Low pressure will continue to intensify today as it grinds its way into the interior part of the Northeast US. As this system intensifies, the overall pressure gradient in the Mid-Atlantic region will tighten and this will lead to the possibility of 50 mph wind gusts from the mid-to-late morning on through the afternoon hours. Temperatures have likely already peaked for the day and will remain colder-than-normal right through the upcoming weekend thanks to a reinforcing shot of cold air that will arrive here by the early part of the weekend.
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It’ll stay relatively quiet this afternoon in the Mid-Atlantic region with nothing more than some light rain or drizzle at times to go along with mild conditions for the latter part of February. The weather story will be quite different, however, from late tonight into the day on Thursday. A very energetic weather situation is evolving for late tonight as a strong cold front will come barreling through the Mid-Atlantic region likely with brief downpours, gusty winds and perhaps a few strong-to-severe thunderstorms. It’ll turn much colder early tomorrow with stiff NW winds and these winds will actually intensify later Thursday as low pressure intensifies dramatically over the Northeast US with gusts possible to 50 mph. This incoming colder air mass will be reinforced by the early part of the weekend leading to below-normal conditions right through the upcoming weekend.
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It’ll be rather mild again today in the Mid-Atlantic region with occasional light rain or drizzle possible and there will be some patchy fog. An energetic weather situation is evolving for tonight as a strong cold front will come barreling through the area with brief heavy downpours, gusty winds and perhaps even a strong thunderstorm or two. It’ll turn much colder late tonight following the frontal passage with stiff NW winds and the winds can gust as high as 50 mph on Thursday. The colder-than-normal conditions that kick in on Thursday will stick around through Sunday following the arrival of a reinforcing shot of cold air early this weekend.
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There will be mild conditions and occasional rain or drizzle in the Mid-Atlantic region this afternoon, tonight and on Wednesday along with patchy, dense fog at times; especially, in the overnight hours. A much more energetic weather situation is evolving for tomorrow night as a strong cold front will come barreling through the Mid-Atlantic with possible downpours and perhaps even some strong-to-severe thunderstorm activity. It’ll turn very windy and much colder following the frontal passage late Wednesday night and Thursday with NW wind gusts possible to 50 mph. The colder-than-normal air conditions that develop on Thursday will stick around right through Sunday as a reinforcing shot of cold air will arrive by the early part of the weekend.
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