Violent Tornadoes Possible as Supercells Fire Near Iowa-Missouri Border — SevereWX

Storms are ramping up fast across northeast Missouri into southern and eastern Iowa and far western Illinois, where the setup screams supercells with serious tornado potential.

A retreating outflow boundary and surging cold front are colliding with juicy, high-dewpoint air—low 70s F and precipitable water over 1.8 inches—fueling an explosive environment. Low-level shear is primed for rotation, with 0-1 km SRH exceeding 200 m²/s². Expect initial supercells near the front and warm advection zone, capable of rightward-hopping motion.

The Storm Prediction Center's Mesoscale Discussion 1089 flags a 95% chance of a Tornado Watch within the hour, valid until around 4:45 PM CDT. Most probable peak threats include tornadoes with 140-170 mph winds (EF3-EF4 intensity), hail 1.5-2.5 inches, and wind gusts 65-80 mph. A few strong tornadoes look increasingly likely as storms cluster or bow out.

This comes amid a busy severe weather pattern in the Midwest, but this pocket stands out for its high-end tornado odds. Keep eyes on radar—action could start soon.

Stay prepared: Review your safe room or shelter plan, monitor local NWS updates and apps like SevereWX.net, and have helmets or pillows ready for protection. Heed all warnings.