Mild weather will continue today, but big temperature changes are coming to the Mid-Atlantic region on Wednesday. A strong cold front will head towards the Mid-Atlantic region from the Midwest later today and rain will break out early tonight and continue to the pre-dawn hours. The rain can come down heavily at times later tonight and there can be a thunderstorm or two mixed in. Colder air will push into the Mid-Atlantic region on Wednesday following the cold frontal passage. By late in the day on Thursday, clouds will increase around here as moisture streams eastward through the Ohio Valley and into the Mid-Atlantic region associated with low pressure dropping southeastward from the northern Plains. Snow is likely to break out in the DC-to-Philly-to-NYC corridor during Thursday night and continue into early Friday with some accumulations possible by the Friday morning rush hour. The initial low pressure over the Ohio Valley will weaken and transfer its energy to a new low pressure system by early Friday near the Mid-Atlantic coastline.
Looking ahead, it'll remain relatively cold through the weekend and there can actually be more snow or snow showers on Saturday night/early Sunday from a "clipper" type of low pressure system. Beyond that, there are signs for a major warmup by the second half of next week with 70+ degrees likely in much of the I-95 corridor. It'll turn colder again around here, however, by the middle of the month. Elsewhere, perhaps the biggest upcoming weather story will the pounding that California receives over the next few weeks with tons of rain likely in lower elevation locations and several feet of snow in the higher elevations (e.g., Sierra Mountains).
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The weather will be quite interesting this week with big changes coming to the Mid-Atlantic region around mid-week. The week is starting off quite mild with temperatures way above normal for this time of year and that mild weather will continue on Tuesday as well. By late tomorrow night, rain is likely to move into the I-95 corridor as a strong cold front approaches and that rain threat continues for the first half of Wednesday. Much colder air will pour in behind the mid-week frontal passage and then we’ll have to monitor a potential storm that should form near the Mid-Atlantic coastline on Friday. As a result of the influx of cold air and late week storm potential, accumulating snow is a threat in the DC, Philly, and New York City corridor from later Thursday night into Friday.
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A weak cool front will pass through the region today and isolated showers are possible before noon. Winds will pick up and could gust past 35 mph this afternoon as partial sunshine returns. A strong front will approach from the Midwest at mid-week and additional showers are likely ahead of this frontal system late Tuesday night and early Wednesday. Colder air will follow for the latter part of the week and a storm near the southern Mid-Atlantic coastline could throw some snow our way Thursday night and early Friday.
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Today will be the coldest day of the next five. Colder air returned to the region on Thursday following the big storm at mid-week. It’ll stay relatively cold today and on Saturday, but then spring will be in the air as we close out the weekend with high temperatures reaching the 60 degree mark on Sunday. Following another mild day to start the new work week, a cold frontal passage will send temperatures slightly lower by Tuesday. Looking ahead, there might just be another heavy rain event in the Mid-Atlantic region by around the middle of the week.
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Colder air returns to the region today in the wake of yesterday’s storm riding in on increasingly strong NW winds. There can be some residual rain shower activity this morning and then a snow shower or two possible this afternoon and evening as it’ll stay somewhat unstable until high pressure builds into the region from Friday into Saturday. Looking ahead, spring-fever alert is on for Sunday as it should turn much milder and high temperatures should flirt with the 60 degree mark.
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Numerous ingredients are coming together for thunderstorms to develop in the DC-to-Philly-to-NYC corridor late this afternoon and evening and some of these can reach strong-to-severe levels.
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Low pressure over the Tennessee Valley this morning will rapidly intensify today and track northward through the Ohio Valley and towards the western part of New York State. This storm will generate periods of light-to-moderate rainfall around here over the next several hours, but the main action associated with this system will occur later today and early tonight. Specifically, the rain will fall heavily at times, the winds will become quite strong, and there can be some thunderstorm activity up and down the I-95 corridor. In fact, thunderstorms may actually reach severe levels late today/early tonight anywhere along the DC-to-Philly-to-NYC corridor containing torrential rainfall, damaging wind gusts, possible hail and even isolated tornadoes. Cold air returns in the wake of this storm by tomorrow night and there can be some snow shower activity to go along with colder, very windy conditions.
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Today begins a stretch of unsettled weather that will continue into early Thursday as two low pressure systems impact the Mid-Atlantic region. The first surface low pressure system is rather weak and it will continue to generate generally light-to-moderate rainfall for the area before dissipating later tonight. A second and much more powerful storm will pull out of the Gulf of Mexico region on Wednesday and it’ll take an inland track through the Ohio Valley. This second storm will impact the Mid-Atlantic region with heavy rainfall, strong winds and possible thunderstorms from later tomorrow through much of tomorrow night. In fact, the thunderstorms may reach severe levels later tomorrow/tomorrow night in portions of the southern Mid-Atlantic region extending from DC to the Delmarva Peninsula to southern New Jersey and perhaps even as far north as southeastern PA.
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Two separate low pressure systems will impact the eastern US over the next few days with the second system being the stronger one and having more of an impact on the DC, Philly, NYC corridor. Light rain is likely today from the first system and a wintry mix cannot be ruled out at the onset in the far northern and western suburbs. The second system will track up through the Ohio Valley at mid-week and rain will be the result here in the I-95 corridor and it’ll fall heavily at times from later tomorrow into early Thursday and a thunderstorm cannot be ruled out. Cold air returns for the late week time period following that second storm system and winds will become quite strong on Thursday and Friday. Looking ahead, it looks like this will be the beginning of an overall colder-than-normal stretch of weather that could last right into mid-March.
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It’ll turn somewhat colder today following the mild conditions of this past weekend, but not bad for this time of year. Over the next few days, two separate low pressure systems will ride up through the eastern states with the second system being the stronger one and having more of an impact on the region. Light rain will likely break out by early Tuesday from the first system and a wintry mix cannot be ruled out at the onset in the far northern and western suburbs. The second system will take an inland track and rain is likely in the I-95 corridor and to points eastward to the coastline at mid-week and it’ll be heavy at times from later Wednesday into early Thursday. Cold air returns for the late week time period following that second storm system and winds will be quite strong as well on Thursday and Friday.
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