Tornado Threat Intensifies Near Cape Girardeau into S Illinois — SevereWX

A cluster of thunderstorms is firing up near Cape Girardeau along I-55 in southeast Missouri, showing signs of rotation on the edge of a larger storm system tied to a mid-level vortex.

The setup features a moist, unstable atmosphere with CAPE around 1000-1500 J/kg, supporting storm growth. Modest wind shear is present, and a strengthening southwesterly low-level jet will boost low-level shear into early evening, heightening tornado odds alongside gusty winds.

SPC's Mesoscale Discussion #1336 highlights potential for a few severe storms with peak tornado winds of 85-110 mph (EF1-EF2), gusts to 55-70 mph, and hail up to 1.25 inches. The risk area spans southeast Missouri into southern Illinois and western Kentucky.

A watch issuance is 60% likely within the next couple hours as trends develop. Storms could produce locally significant impacts—stay tuned to radar and warnings from NWS Paducah (PAH) and St. Louis (LSX).

Prep now: Know your safe spot, monitor local alerts via NOAA Weather Radio or apps, and have a severe weather plan ready. Safety first as evening risks peak.