I wouldn't be surprised if we started to see some widely isolated stuff develop during the early afternoon but it's probably after 4-5 when we would really see stuff develop. The mesos are really all over the place so they probably won't be helpful today. My guess with this is because the forcing is on the weak side so it will be localized influences aiding in the development of convection (orographic, for example). Mesos do target along where the sea-breeze will be, but I think the degree of development along the boundary is underdone. In airmasses like today we tend to be active along it.