Philly Weather Update

As mentioned yesterday, the presence of a subtropical system will affect the models and the accuracy of the forecast this weekend.

The warm coastal trough/warm front that had been expected to move through last night  has been delayed and the models show it moving through later this afternoon.  Some brightening of skies during the early afternoon. The SE surface wind flow will keep some low cloudiness and haze/fog into this late afternoon.  The winds shift to the south about 5 PM, allowing more sun later in the day.

Sunday looks to be brighter with hazy sunshine, warmer and more humid.

A complex weather pattern with a cold front and associated low in the midwest interacting with the remnants of tropical storm Ana.  The models always have trouble with these systems, affecting the forecast.

The track of the remnants of tropical storm Ana will continue to affect the accuracy of this weekend’s forecast.  Some tropical models bring the system through our area Monday into Tuesday, but the majority of the models keep it, (and much needed rain) to our east.

Philly Weekend Weather Forecast

A blocking pattern with  high pressure over the Atlantic will allow a southerly flow of warm air to be with us over the weekend.  The same blocking pattern will impede the northern movement of tropical storm Ana, although there is always uncertainty with the movement of these systems.

A weak warm front will move through Friday night and some cloudiness will linger into Saturday morning as dew points rise.  Skies should break to sunshine in the afternoon with temps getting to 80.  It will be more humid on Saturday.

The  overall dry pattern will continue for Sunday, but some moisture from tropical storm Ana may introduce some cloudiness Sunday afternoon.  Mostly sunny with some cloudiness in the afternoon. High 83 and humid.

I just want to emphasize that tropical storm Ana affects the models and introduces some increased uncertainty in this forecast.

Rose Breasted Grosbeak

We were hoping to see some Rose Breasted Grosbeaks this season; we didn’t have any last year.   But we’ve been treated to these beautiful birds again this year.  We actually have seen two males and one female.Grossbeak-staticMale enjoying the feeder…

Here’s the female.

Female Rose Breasted Grossbeak
Female Rose Breasted Grosbeak

Weather… and Other Things 'Up in the Air'