Monday is looking pretty interesting. I guess I could have put this in the other thread given the severe potential. Nice write-up by Mount Holly this afternoon, although I wouldn't characterize this period as one featuring "extreme heat" lol.
So far, our weather has remained rather benign outside of the extreme heat. But, as expected with the introduction of a well- defined boundary into an airmass characterized by temperatures in the 90s and dew points in the 60s-70s, the main story Monday is the development of showers and thunderstorms, with some potentially severe. The best upper support looks to stay off to our north at this time. Current guidance indicates development in the mid to late afternoon with the most coverage across Delmarva and southern NJ. Taking a look at some parameters and forecast soundings, this seems to fit with progged instability and shear which are highest to the south. MLCAPE could reach around 2000 J/kg coupled with 0-6 km shear around 30 kt. As a result, SPC has placed our entire CWA within a slight risk (2/5) for severe weather and WPC has introduced a marginal risk (1/5) for excessive rainfall, though we`ve been fairly dry over the past week and this should help to limit widespread flash flood concerns.