There is an increased risk for severe thunderstorms today across parts of southern lower Michigan. The primary threats are for hail an inch in diameter or greater along with winds greater than 60 mph. An isolated tornado is possible. The stronger thunderstorms this morning will contain primarily hail. This afternoon as a warm front lifts into southern lower Michigan the atmosphere will become increasingly unstable. As a result the risk for larger hail, damaging winds and possibly tornadoes will increase. The area south of a line from Benton Harbor to St. Johns is in the slight risk area for severe weather issued by the Storm Prediction Center. A moderate risk for severe thunderstorms exists in parts of Ohio and Indiana. Stay tuned through the day as adjustments to these severe weather threat areas could be made.