Plenty of moisture remains entrenched in the lower levels of the atmosphere and this will result in one more day featuring plenty of clouds around here and additional light rain/drizzle and some patchy fog. A weakening cool front will cross the region tonight and it’ll have enough strength to produce clearing in the late night hours and the sun should return on Thursday to go along with a noticeable breeze. High pressure is likely to hang on long enough to result in decent weather here on Friday and for much of this weekend, but upstream disturbances could threaten us with some shower activity by early next week.
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Low pressure that formed off the east coast this weekend continues to lift northward at a snail’s pace and low-level moisture will remain abundant for another couple of days. In addition to the clouds today and Wednesday, there will be light rain or drizzle and patchy fog across the region. A cool front crosses the area on Wednesday night and sunshine should return on Thursday in the wake of the frontal passage.
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Low pressure that formed off the east coast this weekend will pass by to our northeast today and high pressure will begin to get re-established in the Mid-Atlantic region. Later this week, the chance of showers will increase again as another low pressure system will push towards the Great Lakes from the south-central states. This system will swing a cold front in our direction raising the chances at mid-week for shower activity in the region.
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Slightly milder air will move into the region today as a light south-to-southwesterly flow of air forms on the backside of a departing high pressure system. Temperatures today will climb to the lower 60’s and then into the mid or upper 60’s on Saturday afternoon with some sunshine on both days. The weather for the Phillies playoff game tonight looks good and likely for tomorrow night as well, but it’ll become somewhat questionable on Sunday as a coastal low threatens to bring us showers during the second half of the weekend.
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It’ll remain on the chilly side for another 24 hours or so in the Philly metro region and then slightly milder air will move in for the weekend as a south-to-southwesterly low-level flow forms on the backside of departing high pressure. Temperatures today will hold in the 50’s for afternoon highs, drop to frosty levels once again late tonight, and then reach near the 60 degree mark on Friday afternoon. Dry weather should prevail into the first half of the weekend, but a coastal low could bring us showers for the second half of the weekend.
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A chilly air mass remains in the Mid-Atlantic region for another couple of days and frost will be possible each of the next couple of late nights/early mornings in many suburban locations. High temperatures both today and tomorrow will likely be confined to the lower or middle 50’s which is below normal for this time of year. Milder weather will push back into the region by the end of the week and the weekend will likely remain on the mild side. However, the weekend may not stay completely dry as a system near the east coast could bring showers to the Mid-Atlantic region during the second half…still too early to be certain.
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Vigorous upper-level low pressure has pushed into the eastern US and with it some of the chilliest air so far this season. Temperatures today and Wednesday will struggle to escape the lower 50’s for afternoon highs and a frost/freeze is possible during each of the next few late nights/early mornings in suburban locations. Milder weather will return to the Mid-Atlantic by the time we get to the end of the week and upcoming weekend.
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Vigorous upper-level low pressure will push into the eastern states over the next 24 hours or so and this will result in some of the chilliest air so far this season to the Mid-Atlantic region and Northeast US. As this system pushes east, atmospheric instability will bring us lots of clouds today and perhaps a few late day showers, maybe a rumble of thunder. The colder air mass filters into the region later tonight from the northwest-to-the-southeast. High temperatures for the next couple of days will likely be confined to the lower 50’s which is colder-than-normal for this time of year and frost will be possible in suburban locations during the late night/early morning time periods of Tuesday/Wednesday/Thursday. Looking ahead, noticeably milder weather will return by week’s end and the upcoming weekend.
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A strong cool front passed through the region late yesterday and today will be slightly cooler and a lot quieter. High pressure will build into the area today and it should provide decent weather into the weekend, but then a complex of disturbances will bring about some changes by early next week. The threat of showers will increase again by Sunday night and the coldest air mass of the season should spin its way into the northeastern states for Tuesday and Wednesday of next week. In fact, lake effect snow showers could develop next week for the first time this season in the Great Lakes and Northeast US – perhaps as close as the Poconos in NE PA.
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There have been a few chilly air masses that have reached the Mid-Atlantic/Northeast US in recent weeks, but the one destined to arrive here for next Tuesday and Wednesday will likely be the chilliest so far this season. A deep upper-level trough of low pressure will tend to rotate around and intensify during the next few days over the Great Lakes and southern part of Canada and then this system will spin its way into the eastern US by the middle of next week. With lots of instability in the atmosphere and the cold air mass pushing over the still relatively warm of the Great Lakes, snow showers are likely just downstream for the first time this season.
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