Philadelphia, Pennsylvania

Philly has been through the ringer lately. How will it look through the rest of this week?

At 954PM, ET, Philadelphia was reporting a temperature of 31 degrees with mostly cloudy skies with a brisk west wind. We have returned a standing wave pattern, with a dramatic ridge out west and a broad trough in the east. The broader flow is undermined by a sharper trough in the Great Lakes and a weak jet along the Mexican border, ensuring an active pattern despite wavelengths that would seem to inhibit progression.
The wind today is a function of the undercutting trough merging with the broader one off the coast. There is a deep low moving towards the Canadian Maritimes, while there is also a brisk northwesterly flow across the Great Lakes, filling the undercutting trough with Appalachian snow and brining chilly air into the mid-Atlantic. The surface system will shift northeast and away from Philadelphia, leading to a couple of dry days to finish the week, however the undercutting jet will be reinvigorating Friday evening, and will begin the process of inducing cyclogenesis off the Carolina Coast. The end of the day Friday will see the nascent system pulling moisture from the Appalachians southeastward towards Philadelphia. It shouldn’t be able to reach the ground in Philadelphia, but expect clouds to increase late.
Tomorrow – Mostly cloudy, High 27, Low 21
Friday – Increasing clouds late High 28, Low 16

TWC: Tomorrow – Partly cloudy in the morning then becoming cloudy and windy later in the day, High 29, Low 22
Friday – Partly cloudy skies in the morning will give way to cloudy skies during the afternoon. High 31, Low 18

AW: Tomorrow – Intervals of clouds and sunshine, windy and colder with a snow shower High 27, Low 20
Friday – Turning cloudy and cold High 30, Low 17

NWS: Tomorrow – Partly sunny, Early snow flurries High 28, Low 20
Friday – Increasing clouds, late snow High 29, Low 15

WB: Tomorrow – Partly sunny, Isolated snow showers in the afternoon, High 28, Low 20
Friday – Partly sunny, High 29, Low 15

WN: Tomorrow – Partly Cloudy High 28, Low 19
Friday – Partly Cloudy High 30, Low 14

FIO: Tomorrow – Partly cloudy until evening. High 29, Low 21,
Friday – Flurries starting in the evening. High 31, Low 17

Pretty up in the air on snowfall to end the week in Philly. Take a look at the satellite with heavier activity off shore and some lower clouds across the eastern Great Lakes and mid-Atlantic.
Philadelphia

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