Update 10AM: More sun than expected today. High temperatures around 71.
As expected, the easterly flow behind the cold front that dropped down Saturday evening has resulted in considerable low-level cloudiness for today, Sunday.
The cloud layer will not be thick, so brightening skies are possible early afternoon, but overall, expect cloudy skies and cool temperatures. Some reduction in cloudiness is possible early evening. High temperatures around 67.
The warm front moved through earlier this morning, but an east-west orientation of the front may allow another batch of showers and thunderstorms to move in here about 11AM-12 PM today. These showers are currently in Lancaster and the HRRR and GFS LAMPS show their making it into the PHL area before dissipating. (They may dissipate before getting here; we’ll see how good the models are.) They will be fast-moving, lasting less than an hour.
The front returns as a cold front later today.
It does appear that the easterly flow on Sunday will result in significant low level cloudiness with some brights spots.
The weekend forecast seems to have changed somewhat over the past day or so. (A dry warm weekend was originally forecast.)
A warm front is expected to move past our area early Saturday morning. Some showers and even a thunderstorm is possible early to mid Saturday morning. Skies should break for partly sunny skies. Highs around 85.
A weak cold front drops through the area later Saturday afternoon. Another chance of showers and thunderstorms is possible late afternoon Saturday. (I’ll look into this again on Saturday morning.)
On Sunday, an easterly flow develops, keeping our temperatures much cooler. Some cloudiness is also expected yet it’s not certain how much cloudiness will result with this easterly flow. Highs around 67.
The “uncertain” forecast continues to clarify….
On and off showers are expected throughout today (Saturday) with the heaviest late morning into early afternoon. Showers taper during the evening. Today’s high temperatures only in the mid 50s.
Sunday is looking much better with sunny skies for most of the day. High 66-70.
Low pressure off the southeast coast will lift up towards our area later Sunday. An increase in clouds during the mid afternoon Sunday will preceed showers coming in for Sunday night into Monday.