Thunderstorms this evening have produced minor to briefly moderate street and driving lot flooding in parts of the region as their slow movement, coupled with high water content, have yielded some rather quick downpours that have produced a lot of rain in a short amount of time.
Rainfall estimates per doppler radar (seen below) show that most of the thunderstorm activity today occurred along and north of the PA Turnpike and Interstate 195 in New Jersey, generally resting along a dead frontal boundary. In these areas, anywhere from a few tenths to a couple of inches of rain have fallen, with lesser amounts to the south except in Delaware along the path of a thunderstorm that pushed northward. Jackson Township in Ocean County picked up 3.35" of rain in an hour's time earlier this evening!
Storms are slow moving and due to an atmospheric disturbance pushing through the region. While we will see storms taper off this evening, the thunder threat may very well stick around in various parts of the region through the night...especially north and northwest. Thunderstorms across Central Pennsylvania are moving slowly east-northeast and could be around the Lehigh Valley and Poconos later into tonight. Any storm that does move through those areas could produce heavy rains in a short enough period of time to cause localized flooding or ponding of water. Not everyone, especially south of the city, deals with storms tonight as the threat for thunder looks low south of town.
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