SEVERE WEATHER OUTLOOK
The Storm Prediction Center has issued a moderate risk for severe weather development today, April 3 across all of Arkansas, central and southern Missouri, southern Illinois, extreme southern Indiana, western Kentucky and Tennessee, northwestern Mississippi, and northern Louisiana.
The primary threats from any storms that do develop appear to be damaging winds and large (perhaps 2 inches in diameter or larger) hail. Tornadoes, including "significant tornadoes" are also possible, particularly this afternoon and this evening.
Tornado warnings were issued earlier this morning for portions of St. Louis City and St. Louis County as well as for portions of Madison, Clinton and St. Clair counties in Illinois, with concurrent severe thunderstorm warnings in effect for adjacent areas. These storms were obviously dangerous but were not, so to speak, the "main event."
Storms will move through this morning, we should experience a period of clearing, and then expect re-development later in the day. To quote from the SPC Convective Outlook, "Multiple rounds of severe thunderstorms with large hail . . . damaging gusts and a few strong tornadoes are possible in and near the moderate risk area today and tonight."
A slight risk of severe weather development also exists today for a broad area from the Gulf Coast north and east toward the Great Lakes, and there are current flood/flash flood watches, warnings and advisories in effect from eastern Kansas eastward all the way into central Ohio.