Book-Ended By Heavy Rain

As I mentioned yesterday, much of today would feature rainfall across much of PA, but mostly to our west and to our east.  In fact, flooding rains fell at very intense rates earlier today out in the Laurel Highlands where several Flash Flood Warnings were issued.  Below is a graphic showing the rainfall observed over the last 12 hrs...Also note the total lack of rain where the center of highest pressure was located from yesterday's 500 mb map; OK, KS, AR, MO!

As for the upcoming pattern, there is some disagreement as to how much cooling will occur thanks to our friends from the north. The Euro is a tad more bullish on a rather potent air mass change for next week while our lovely GFS isn't quite so sure...here is the Euro's temps for the next 4 days...1st the operational run...

...and now the next 4 days as smoothed out by the Euro ensembles...rather good agreement!

Now, here is the Euro for later next week...in the 6-10 day period...again 1st the operational run...

...and now once again the Euro ensembles...not quite as good of agreement on the later period, but nonetheless, an notable air mass change.

Meanwhile, the Euro's 500 mb anomaly is very suggestive of much cooler air in the eastern third of North America!

However, the GFS for the same time frame is not signaling as strong of a 500 mb trough...it's a bit flatter and slightly more progressive.  Both do still have a ridge out over the high plains later next week with the Euro being more amplified.

So what does all of this indicate.  After what will prove to be an unsettled weekend with Sunday and Monday the most likely days to see thunderstorms in these parts, I do believe a substantial air mass change will occur next week bringing with it, somewhat cooler but noticeably drier air for the middle and latter parts of next week!

Driving home today, I was listening to our president's address in honor of MLK's famous Aug 28, 1963 "I Have a Dream" speech...so I'll leave you with the familiar Billboard top hit of that time that remained in first place for 4 weeks...sung by The Angels....

Enjoy your end of the week...

Smitty

AA:  Unsettled warm and humid weekend with Sunday and Monday the most likely days for storms.  PSU to cover the 8 at Met-Life over The Orange.  Slightly cooler but drier middle of next week!