A Beautiful Fall Weekend

A large sprawling high pressure system moves in for this weekend.  Northerly winds will bring cool and dry conditions.

Except for some instability cloudiness mid day on Saturday, there will be abundant sunshine. High temp Saturday 68 and Sunday 70.

Looks like the instability cloudiness Saturday will be more than I predicted.


Philly Weekend Weather Returns

I’ve been away the past two weeks, but I’m back and Philly Weekend Weather returns this coming weekend.

There hasn’t been much going on here weather-wise, while I was away, due to a slow blocked pattern typical of September.   (The blocked pattern has caused the remnants of Maria to be relatively stalled off the SC coastline. )

This coming weekend looks to be seasonably cooler and sunny.

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

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