Also from the spc
..Eastern U.S...
Seasonally strong upper trough is currently located over IL and should advance into the OH Valley by 18z as stronger 500mb flow develops across western PA/NY. With time, 50+kt flow should translate into the Middle Atlantic, coincident/just ahead of the primary synoptic front. Latest model guidance suggests modest 0-3km lapse rates will develop by mid day as the boundary layer warms ahead of the wind shift, especially from the Carolinas into Upstate NY. In fact, much of the I-95 corridor over the Middle Atlantic will warm quickly through the 80s to near 90F, effectively removing any inhibition. As a result, convection should readily develop within a very moist environment (PWs 1.75-2 inches) characterized by MLCAPE in excess of 2000 J/kg. Forecast soundings exhibit deep west-southwesterly flow with 0-6km bulk shear around 30kt. These profiles favor organized line segments and clusters, and severe wind gusts will likely be noted with the most robust activity. Convection should spread off the Middle Atlantic Coast during the evening hours.
Full discussion from the spc is in the link below
https://www.spc.noaa.gov/products/outlook/day1otlk.html