Tag Archives: Stalled Front


Today’s weather featured a bit more cloudiness than had been forecast and the temperatures weren’t able to reach the predicted high.  The front has stalled just a bit further north and over-running of moisture has to occurred today giving us the clouds.

As mentioned yesterday, it wouldn’t take much for the amount of rain expected on Sunday to increase, based on further intensification of the wave expected to form along the stalled front to our south. Indeed, the GFS and last night’s NAM suggested that rain might continue through the day on Sunday.

So while Friday’s model forecast had Philadelphia on the very northern fringe of precipitation on Sunday, things are now looking wetter.

This afternoon’s models are predicting a very cloudy and rainy Sunday. Rain starts in the morning and continues into the afternoon. High in the mid 60s.

Autumn, which begins tonight, continues with the rainy pattern we have had for much of this past summer.


A front will pass through Philadelphia tonight and some cloudiness may linger into early Saturday morning.

Clouds thin later in the morning Saturday and expect some sunshine and low humidity for much of the day before clouds roll in again during the late afternoon. High temperature 74.

The front that moved through earlier in the day Saturday stalls just to our south. A weak disturbance rides along the front Sunday morning.  The latest GFS has some heavy showers making their way through Philadelphia and areas south on Sunday morning.

The NAM is less impressive with the precipitation.

NAM Forecast
NAM 12 km forecast Sunday morning

Most of the models have the precipitation ending sometime early afternoon Sunday.  It will be cool with highs near 68.

This will be a close call—slightly more intensification or a difference in the position of the stalled front will greatly affect the amount of rain and whether the Eagles will be playing with drying conditions or showers.

[su_note note_color=”#d9f2da”]Fri night update: Tonight’s NAM has showers before daybreak Saturday, especially northwest of the city. For Sunday, showers may linger through the afternoon.  [/su_note]