The Mid Atlantic is outlooked for a severe weather threat on Sunday.
0z GFS model guidance indicates the presence of 3000-4000 j/kg of instability present on Sunday over the Mid Atlantic region. Considering this area resides close to the mountains, any air that is pushed up the mountain slopes could very well ignite a thunderstorm. Lifting oughtn't be an issue due to the presence of these mountains.
Concerning the tornado threat, there looks to be minimal rotation due to the mountainous terrain. With such high instability, I am confident that the main threats will be damaging winds and hail.