Philadelphia Weather Outlook

THIS WEEK’S WEATHER

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This week’s weather will be influenced by a welcome mass of cooler air from Canada (Gee, I hope they don’t start using this export in the trade war.) We’ll have this relief today through some of Thursday.

06z ECMWF-AI forecast for Tuesday at 2 PM. (Some moisture in the easterly flow may cause some showers at the shore.) (Click on image for a larger view.)

By late Thursday, the return southwesterly flow will bring back some of the heat and humidity.

00z GDPS with “AI Spectral Nudging” forecast for Thursday afternoon. The orange line is the 576 line of the 500-1000 thickness parameter. It is a convenient marker for the three dimensional “edge” of tropical air. (Click on image for a larger view.)

We’ll have to see if any warm front develops on Wednesday in advance of the return of tropical air.

Models used for this forecast: GDPS-AI, ECMWF-AI

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