Monthly Archives: September 2017

Philadelphia Area Weather Forecasts

A Beautiful Weekend for Philadelphia

High pressure will give us a picture perfect weekend. Sunny skies and cool temperatures for both Saturday and Sunday!  Doesn’t get much better!

High on Saturday 72.  High on Sunday 73.

An early evening update on Irma- the track through Florida continues with a more westward trend.  The ECMWF (European) has been the best performing model with an average 2 day error of about 30 miles in storm position.  The other models are having an average error of 60-70 miles in 2 day forecasts.

It would not surprise me if Irma’s track moves even further westward.

Latest tracks of best performing models for Irma
Tropical Storm Outlooks

Irma Update- Friday

Last night’s models have moved the track a bit to the west, possibly making landfall near Naples FL and then moving up through west-of-center of the state.   The storm is expected to hit Florida as a Category 4.   The consensus track (white) on the graphic below is the current most likely track.  The National Hurricane Center’s track is a bit east of this line.

Current model Tracks 12z Friday