The Storm Prediction Center has issued Severe Thunderstorm Watch #588 for eastern Missouri and south central Illinois. The watch is in effect until 8:00pm CT Sunday.
A few of the communities included in the watch include: Missouri: Chesterfield, Columbua, Farmington, O'Fallon, St. Louis, Ste. Genevieve; Illinois: Belleville, Centralia, Du Quoin, Edwardsville, Effingham, Flora and Mt. Vernon.
Thunderstorms are beginning to flare up in the watch area along a weak front. Heating of the day is allowing the atmosphere to become unstable. Combine the instability and a lifting mechanism (the front) and you can get several strong thunderstorms.
The main severe weather threat will be hail. The storms will also be capable of producing heavy downpours. A few of the thunderstorms could produce some strong winds as storms collapse.
The thunderstorms are expected to move east at 25-30 mph.
Remember that you can check out the radar and the latest warnings by using the tabs at the top of my page.