Summer Weekend Hot Saturday Severe Weather Possible Less Humid Sunday
We are headed in to the weekend after 2 terrific weather days of sunshine, minimal cloud cover and minimal thunderstorm activity. On the satellite picture we are seeing just a few patchy high clouds over the region. We will watch for a pop up shower or thunderstorm this evening over Southern New Jersey and Southeastern Pennsylvania. Everywhere else it should be a quiet warm evening. Humidity levels were not all that high today except in South Jersey & Southeastern Pennsylvania which is where the pop up risk exists. Otherwise tonight will be a warm night and it will turn more humid everywhere with lows in the 60s to around 70.
Saturday will be a hot and steamy day and definitely uncomfortable with sunshine taking highs into the upper 80s and lower 90s. Dew points will be rising to the upper 60s to lower 70s. Add a cold front dropping southward from upstate NY and you have the potential for thunderstorms. The Storm Prediction Center has much of Eastern and Southern Pennsylvania northeastward into New England at a slight risk for severe weather which was upgraded from marginal risk yesterday.
As far as timing is concerned look for thunderstorms to develop in northern areas around 3pm and they will be passing through from north to south between 3pm and 7pm. With this front oriented east-west, this will keep thunderstorms strong even in coastal areas since there will no marine influence. The NAM three has an aggressive line of thunderstorms and other models have similar looks.