HRRR at 21z targets coastal Connecticut overnight, and area just inland. The entire state gets storms, but the strongest part of the line appears to go just inland and along the sound.
Looks like models have a line developing now over Maryland, then it tracks NE from NYC > SNE.
Looks like 1am Fairfield county. Through to ORH/PVD 4 am > fizzling near 128 5-6 am.
Elevated instability is there for solid storms across interior Sne.