Philly Weekend Weather Forecast

The models keep it dry in Philadelphia until late afternoon or early evening Sunday. But it will be a close call with a sharp precip cutoff.   A model error could kill this forecast.

Saturday will be partly sunny and windy. High 72.

Sunday will be cloudy and windy with showers possible late afternoon or evening. High 70.

Still a low confidence forecast for Sunday.

 

Philly Weekend Weather Update

There continues to be major differences between the GFS and NAM models’ handling of the coastal low pressure system expected to move up the coast, with the NAM shunting the precipitation to out west until late Sunday, with the GFS bringing the rain up into PHL during the afternoon.

I’m still leaning towards the drier  NAM. But this will be a good test of the two models for this season.  Updates later.

1pm update:  the GFS model is looking more like the NAM model -Keeps the showers to the south and west on Sunday, slight chance of light showers about noon.  Still a lower confidence forecast.

9pm update:  models keep it dry in Philadelphia until late afternoon or early evening Sunday.  But it will be a close call with a sharp precip cutoff.  A model error could kill this forecast.

Saturday will be partly sunny and windy. High 72.

Sunday will be cloudy and windy with showers possible late afternoon or evening.

Philly Weekend Weather Outlook

A high pressure system to our northeast and a coastal low pressure system will interact near our area over the weekend.  There remain differences between the GFS and NAM models in handling these systems, with the NAM shunting the precipitation to our south and west and the GFS shunting it to our south and east.

Either way, both models keep us mostly dry this weekend but with varying amounts of cloudiness and a cool breeze from the east.  The only chance of light showers (GFS model) is Sunday morning.

Will update this situation tomorrow.

Philly Weekend Weather Forecast

The beautiful weather continues–  High pressure moves off the coast later Saturday. A weak cold front will move through Saturday evening with the moisture and lift passing us by to our north.

Saturday will be mostly sunny with an increase in clouds late afternoon.  High 85

After the front passes through, Sunday will become mostly sunny and breezy.  Highs closer to the average of 75.

Sprawling high pressure is expected to provide continued beautiful weather through much of next week before moisture moving up the coast gives us a chance of rain next Friday.

 

Storm Forecasts & Other Things "up in the air".