PHILLY WEEKEND WEATHER FORECAST

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A frontal boundary will pass through our area this evening.  Some light showers are possible with the frontal passage.

The front is expected to stall to our south on Saturday,   Cloudy conditions are expected, but most of Saturday should be dry.  High mid 70s.

Showers develop during the late afternoon or evening Saturday as winds shift to the east and some over-running moisture develops across the stalled front to our south.

On Sunday, as high pressure builds to our north, an easterly flow will bring damp conditions and intermittent drizzle on Sunday. Low level cloudiness and cooler temperatures in the 60s are expected.

Confidence in the degree of cloudiness and the amount of precipitation on Sunday in a bit below average. There are large differences between the GFS and NAM QPF forecasts.

Gap in precipitation field
Experimental GFS forecast Sunday afternoon shows a gap in the precipitation shield in our area.

2 thoughts on “PHILLY WEEKEND WEATHER FORECAST”

  1. Much appreciated, as always. If you have the time and inclination to post any updates as things get more into focus for Sunday morning 8-10 am-ish, those of us running the Broad Street Run would love your thoughts.

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