WEEKEND WEATHER OUTLOOK

Last Updated

The medium range model forecast for the weekend sems to be in flux as details of the development of several systems seem to have changed over the past few days – a storm expected to develop Friday into Saturday is now forecast for Saturday into Sunday. It appears that we will get rain from this system.  I would not be surprised if the timing changes again.

There’s also a small impulse forecast for this Thursday into Friday which keeps changing intensity and track.

So a very uncertain weather outlook for this weekend in Philadelphia.

The models are consistent in the appearance of a deep dive in the jet stream for much of next week caused by arctic high pressure. As a result, well below average temperatures are likely for much of next week. Storm development with this jet dip is expected to be off-shore, but that could change.