After an unusually warm day on Thursday, much colder air has pushed into the region following the late night passage of a cold front. Winds will kick up as well today with gusts to 40 mph likely throughout the Mid-Atlantic region. Low pressure can produce snow or snow showers in the region on Saturday and then a stronger system could throw some rain and/or snow this way early next week.
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The country is sharply divided today in terms of temperatures with record-breaking warmth in the East and bitter cold in much of the western half of the nation. In addition to the cold, accumulating snow is falling in a swath from the Upper Midwest to northern New England from a storm system that has impacted a large part of the nation in recent days. Snow is also falling across many western states and blizzard warnings have been posted in of all places the southern part of California. In fact, for the first time ever, blizzard warnings have been issued by the San Diego office of NOAA’s National Weather Service for the San Bernardino Mountains.
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A warm front will push through the region today as low pressure passes by to our northwest. It will become unseasonably warm this afternoon, but the next frontal system will bring colder air back to the Mid-Atlantic on Friday and winds will become quite gusty as well. Weak low pressure can produce isolated snow showers in the Mid-Atlantic on Saturday and then a stronger system could throw some rain and/or snow this way early next week.
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A cold front pushed through the region late yesterday and today will turn out to be noticeably colder with mainly cloudy skies. Rain is likely to develop this afternoon as low pressure pushes to our northwest and there is an outside chance that sleet mixes in at the onset. Following the passage of a warm front, temperatures should jump on Thursday well up into the 60’s with partly sunny skies and breezy conditions. Another cold front passes through the region tomorrow night ushering in colder and very windy conditions for Thursday night and Friday. Low pressure could produce some snow shower activity around here on Saturday, but the moisture content for this system appears to be limited.
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Low pressure will track northwest of the region today producing a residual shower this morning and additional showers in the afternoon. In addition, the winds will pick up noticeably this afternoon and there can be a gusty thunderstorm as well. It’ll turn colder later tonight on the heels of a cold frontal passage and skies will clear after midnight. On Wednesday, it’ll be a colder day and there will be the chance of rain late – perhaps mixed with sleet at the onset – as a warm front approaches from our southwest. After the passage of the warm front, temperatures could shoot up well up into the 60’s on Thursday and then another cold shot will arrive at week’s end. Low pressure could produce some rain and/or snow shower activity around here sometime during the upcoming weekend.
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The overall weather pattern across the eastern US has been active in recent weeks and there is reason to believe it’ll remain quite energetic over the next couple of weeks. In fact, the Mid-Atlantic/Northeast US can become quite a “battle zone” region with the development in coming days of high-latitude blocking across Greenland/Northeastern Canada at the same time high pressure ridging persists over the Southeast US. There will be times when the SE US ridge shows its strength with warm air surging northward into the Mid-Atlantic region and other times in which the high-latitude blocking flexes its muscle resulting in cold air dropping southward from Canada into the northeastern part of the US.
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The week ahead will feature and up and down temperature pattern and it’ll be unsettled with a series of low pressure systems moving by to our northwest. Today will be a mild day and there can be some shower activity this afternoon with the approach of a cold frontal system, but any rain is more likely later in the evening. It stays mild on Tuesday with a shower threat and then colder on Wednesday. The mildest day of the week is likely to be on Thursday before colder air returns for the end of the week.
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A strong cold front will pass through the region this morning ushering in a cold air mass for tonight and Saturday. Winds ahead of the front this morning will be from the southwest and then will shift to a northwesterly direction in the afternoon and temperatures will fall through the 40’s. Temperatures late tonight will bottom out in the mid 20’s and be confined to the low-to-mid 40’s for highs on Saturday afternoon. Temperatures will rebound on Sunday and Monday as high pressure shifts to a position off the east coast allowing for the formation of a low-level southwesterly (and milder) flow of air.
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A warm front will result in some shower activity around here later today and temperatures will again reach unseasonably mild levels in the lower 60’s for afternoon highs. A cold front will then head this way later tonight bringing with it additional showers that will last right into the morning hours on Friday. It’ll turn much colder on Friday night and Saturday, but this cold snap will be rather short-lived as temperatures should rebound for Sunday and Monday.
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The next couple of days will be unseasonably mild in the Mid-Atlantic region with lower 60’s on the table in the Philly metro region for afternoon highs. As a front approaches on Thursday, the chance for showers will be on the increase and winds will pick up in intensity as well. After the frontal passage on Friday, it’ll turn much colder for Friday night and Saturday, but - as has been the case with most recent cold snaps - this one will be rather short-lived. Temperatures will begin a noticeable rebound on Sunday and the milder pattern will continue early next week. Looking beyond, a colder weather pattern is likely to develop later next week in the Mid-Atlantic region and it could present one or more opportunities for some frozen precipitation.
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