FORECAST UPDATE

[su_note note_color=”#d9f2da”]Saturday morning’s NAM has backed off on the showers in eastern PA but has a slight chance for widely scattered showers in central NJ Saturday morning. Lingering periods of cloudiness in the morning still expected.  [/su_note]

Tonight’s NAM data is just becoming available and it has the front lingering over our area during Saturday morning.  This is a large change in the forecast. So there’s a chance of lingering light, scattered showers during the morning hours tomorrow, Saturday. Skies improve in the afternoon.

(GFS data not available until much later due to daylight saving time, so I can’t compare models at this time)

A weekend forecast  that appeared high confidence, now appears to have some new uncertainty.

WEEKEND WEATHER FORECAST- A FAIRLY NICE WEEKEND!

A front will move through Philadelphia late this afternoon and early evening (Friday) with showers and thunderstorms.  Some storms are developing ahead of the front this afternoon in the warm, humid air. The dynamics suggest the possibility of heavy thunderstorms in PHL, although the strongest dynamics may move through to our north.

[su_note note_color=”#d9f2da”]Updated 9 PM Fri:  The heaviest storms were well north of the Philadelphia area. Rainfall was less than forecast. The sky appearance was impressive   [/su_note]

Towering cumulonimbus
Towering cumulonimbus cloud over NE Philadephia 5:30 PM

By Saturday morning, the front will have moved off the coastline resulting in sunny skies with gradually falling humidity/dew points as the day goes on.  Highs will be around 86 with a light wind out of the west.

For Sunday, some cloudiness very early, then partly to mostly sunny. Lower dew points in the 60s and highs around 85.

A return to unsettled weather and humidity for early next week.