I WAS low-key wondering about the steep low-level lapse rates, weak instability and deep northwesterly flow for tomorrow after seeing today's 12z CAMs. Apparently the SPC is low-key watching as well.
...Delmarva/Chesapeake Vicinity...
Moderate northwesterly deep layer flow is forecast across the region
as a strong upper low moves offshore the Northeast coast and an
upper ridge slides slowly eastward across the Midwest. Surface
dewpoints are forecast to increase into the upper 40s and low 50s
beneath modest midlevel lapse rates, resulting in weak instability
during the afternoon and evening. Furthermore, forecast soundings
show a well-mixed boundary layer developing as temperatures warm
into the 70s. While severe storms are not expected given weak
instability, a couple of convective showers and/or storms could
produce locally strong gusts.
..Leitman.. 04/05/2021