MIDWEST — Isolated severe storms are possible across a broad swath of the Midwest on Sunday, May 3, 2026, with Kansas City, St. Louis, and Springfield Illinois all sitting inside a Marginal Risk categorical outlook zone. A couple of supercells carrying large hail and damaging winds represent the primary hazards for the day. Tornado risk is described as very low to zero, keeping the overall threat level manageable but not ignorable for communities across the risk zone.
Isolated Supercells With Large Hail and Damaging Winds Expected Across the Risk Zone
The primary severe weather mode for Sunday is isolated supercell development, with forecasters expecting a couple of discrete storms capable of producing large hail and damaging winds across the Marginal Risk area. The highest confidence threat zone sits across a darker green inner core covering Kansas City through St. Louis and into Springfield Illinois, where supercell potential is most concentrated…