Storm Watch = Severe thunderstorms are possible in and near the area. Stay informed and be ready to act if a warning is issued. The watch area is typically large, covering numerous counties or even states.
Storm Warning = Severe weather has been reported by spotters or seen on radar. Warnings indicate imminent danger to life and property. Warnings typically encompass a much smaller area (around the size of a city or small county) that may be impacted by a large hail or damaging wind identified by an NWS forecaster on radar or by a trained spotter/law enforcement who is watching the storm.