A severe thunderstorm watch has been posted for D.C., parts Of Maryland and northern Virginia until 8 PM.
A cold front is sagging south from Pennsylvania into a hot and humid airmass, and thunderstorms should become more widespread by rush hour. I must note though that as of 3:20 the radar was not looking very impressive for the immediate D.C. area, with most storms either well north or east of the city. More updates to come as necessary.