An Arctic front has pushed through the Northern Plains and into the Upper Midwest at mid-day and temperatures have plunged to below zero in many locations. In addition, winds are quite strong in these same areas resulting in dangerous wind chill values as low as 30 degrees below zero. This Arctic air outbreak will continue to push to the south and east over the next 24 hours and will bring some of the coldest readings yet this season to the Mid-Atlantic and Northeast US by the early part of the weekend. As has been the case for much of the winter, the cold air will be rather short-lived and temperatures will ease noticeably by Sunday afternoon in the Mid-Atlantic/NE US.
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Low pressure will pull away later today and head towards the waters off of eastern New England. The low pressure will drag a cold front through the region later in the day and an impressive cold air outbreak will arrive in the overnight hours and it'll stay quite cold into the weekend. Temperatures both tomorrow and Saturday afternoon are likely to be held in the middle 30's for highs and it'll be bitter cold tomorrow night with lows in the mid-to-upper teens - some of the coldest readings so far this season. One final note, the rocket launch that was originally scheduled for late Sunday afternoon at NASA’s Wallops Island Facility has been rescheduled for Friday, February 14th at 3:43 PM and it may be visible throughout the Mid-Atlantic region. The original launch was scrubbed due to a faulty sensor issue which should be resolved by week’s end. Weather can be an issue on Friday as winds will be quite gusty out of the northwest throughout the Mid-Atlantic region.
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There will be a break today in the recent active weather pattern as high pressure takes control for a short period of time. Another low pressure system, however, will move in this direction from the Tennessee Valley and impact us with more rainfall from late today into Thursday afternoon. Following this next system, an impressive cold air outbreak will arrive on Thursday night and it'll stay quite cold into the first part of the upcoming weekend. Temperatures on Friday and Saturday will struggle to reach the mid or upper 30’s for afternoon highs and there will be a stiff NW wind at times to make it feel even worse.
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A wave of low pressure will track along a frontal boundary zone today from southwest-to-northeast and produce more rainfall in the Mid-Atlantic region. There will be a brief break in this active and unsettled weather pattern from tonight into late Wednesday as high pressure takes over for a short period of time. Another low pressure system, however, will then impact us with more rainfall from late Wednesday into Thursday. Quite an impressive cold air outbreak will arrive here on Thursday night and temperatures will struggle to reach the middle 30’s on Friday and there will be strong winds from the northwest. One final note, the rocket launch scheduled for late Sunday afternoon at Wallops Island, VA was scrubbed due to a faulty sensor. The next attempt will be no earlier than Thursday afternoon.
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Low pressure will track to our north today and drag a cold front through the region and then another low pressure system will ride up and along the frontal boundary zone on Tuesday. As a result, the week will start on an unsettled note with occasional rain today, tonight and Tuesday. High pressure will arrive at mid-week and then we’ll have to watch for yet another system as it pulls out of the southwest and heads in this direction likely with more rainfall on Thursday. An impressive cold air outbreak will arrive here on Friday and it'll stay quite cold to begin the upcoming weekend.
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Strong low pressure will move over the interior part of Pennsylvania today on its way to eastern New England and a strong cold front will sweep eastward through the region. This frontal passage will be accompanied by more rain and winds can gust to 50 mph. In addition, there can be a strong-to-severe thunderstorm this morning containing heavy downpours, damaging wind gusts and perhaps even small hail. High pressure takes over to start the weekend, but a weak system could produce some snow showers on Saturday night.
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Low pressure is now intensifying over the Tennessee Valley and it has tremendous support in the upper part of the atmosphere with a vigorous wave of energy and a powerful jet streak. This developing storm will have a wide ranging impact in the eastern US over the next 24 hours or so with severe weather in the southeastern states, heavy rain/strong thunderstorms and potential flooding in the Mid-Atlantic region, and significant snow across interior sections of the Northeast US.
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The cold front that pushed through the region in the early morning hours on Wednesday will turn around today and move to the north as a warm front. As a result, the cold conditions that start the day will give way to milder weather this afternoon as low pressure starts to pull in this direction from the Tennessee Valley. This low pressure system will have lots of support in the upper atmosphere resulting in a soaking rain event around here from later today into early Friday. A strong cold front will push across the region on Friday and the winds should increase noticeably with gusts past 40 mph possible out of the northwest. Over the weekend, a weak wave of energy will head into the eastern states and it may produce a bit of snow in the region on Saturday night or Sunday.
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An active weather pattern will result in freezing rain for parts of the Mid-Atlantic region during the next 12-24 hours and heavy rainfall is likely from later tomorrow into early Friday with the potential of flash flooding. A strong cold frontal passage last night has resulted in a dramatic drop in temperatures from yesterday’s unseasonably mild conditions and they will drop quite close to the freezing mark in several of the northern and western suburbs along the I-95 corridor. Meanwhile, another batch of rain will arrive here from the Tennessee Valley and this can result in freezing on some surfaces in these normally colder locations. This same front will push back to the north as a warm front on Thursday and pave the way for a strong low pressure system to generate heavy rainfall from later tomorrow into early Friday.
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An active weather pattern will produce a chilly rain around here later today and tonight and there can be freezing on some surfaces well to the north and west in the overnight hours. A strong cold frontal passage in the overnight hours has resulted in a dramatic drop in temperatures from yesterday’s warmer-than-normal levels and they should drop to the low-to-mid 30's to the N and W later tonight. This same front will then push back to the north as a warm front later tomorrow and pave the way for a strong low pressure system to generate some heavy rainfall around here from tomorrow night into early Friday and the possibility of flash flooding. Yet another low pressure system will move eastward from the Ohio Valley this weekend and it could generate some snow here from Saturday night into early Sunday or a mix of snow and rain.
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