The National Weather Service in Indianapolis has issued a Severe Thunderstorm Warning for... Central Knox County in southwestern Indiana... Central Daviess County in southwestern Indiana... * Until 545 PM EDT. * At 502 PM EDT, a severe thunderstorm was located 7 miles southeast of Vincennes, moving northeast at 50 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Vincennes, Washington, Bicknell, Elnora, Monroe City, Wheatland,Plainville, Sandborn, Edwardsport and Decker. PRECAUTIONARY/PREPAREDNESS ACTIONS... A tornado watch remains in effect for the warned area. Tornadoes can develop quickly from severe thunderstorms. Although a tornado is not immediately likely, if one is spotted, act quickly and move to a place of safety inside a sturdy structure such as a basement or small interior room. For your protection move to an interior room on the lowest floor of a building. Intense thunderstorm lines can produce brief tornadoes and widespread significant wind damage. Although a tornado is not immediately likely, it is best to move to an interior room on the lowest floor of a building. This storm may cause serious injury and significant property damage.