Tornado Outbreak Underway Across Central Illinois, Missouri, Arkansas and the St. Louis Metro With Millions at Risk Starting 3 to 4 PM
CENTRAL ILLINOIS, MISSOURI AND ARKANSAS — A significant tornado outbreak is expected today across central Illinois through Arkansas including the St. Louis Metro, with multiple rounds of supercells capable of producing strong to violent tornadoes beginning as early as 3:00 to 4:00 PM CDT. Millions of people are at risk from this outbreak across the Ohio Valley and Mid-South.
Significant Tornado Outbreak Now Confirmed
Forecasters are no longer treating this as a potential event — a significant tornado outbreak is expected across the pink circled zone covering central Illinois, Missouri, and Arkansas. Multiple strong tornadoes are possible within this corridor, with EF3-plus tornadoes explicitly possible inside the highest-risk zone.
Outside the pink circled region, damaging winds and large hail are the primary risks — but tornadoes remain possible across a broader area as well.
Timing — Storms Fire Starting 3 to 4 PM
The HRRR model simulated reflectivity valid today into tonight shows the primary supercell activity developing and intensifying across the Missouri-Illinois corridor beginning in the mid-afternoon hours. The threat will continue into the overnight hours across the region.
| Phase | Timing | Primary Threat |
|---|---|---|
| Storm initiation | 3:00 PM to 4:00 PM CDT | Supercells firing across Missouri and Illinois |
| Peak outbreak | Afternoon into evening | Strong to violent tornadoes, large hail, damaging winds |
| Overnight continuation | Evening into tonight | Ongoing tornado and severe wind threat |
Primary Threats for the Outbreak Zone
- Multiple strong to violent tornadoes — EF3-plus possible inside the highest-risk zone
- Large hail — significant threat with any organized supercell
- Damaging winds — expected across the broader outbreak area outside the pink zone
- Millions of people at risk across the Ohio Valley and Mid-South corridor
Who Is in the Outbreak Zone Right Now
The pink circled significant tornado threat zone covers a corridor running from central Illinois through Missouri and into Arkansas — including the St. Louis Metro area. Anyone within or near this zone must be sheltered and prepared before 3:00 PM today.
Outside the pink zone, the red outlined broader area covers a multi-state region where damaging winds and large hail are also expected with storm cells throughout the afternoon and evening.
This Is Not a Drill — Act Before 3 PM
- Get to the lowest floor of a sturdy permanent building now
- Have multiple ways to receive tornado warnings active and with you at all times
- Do not be outdoors at 3:00 PM or after in the outbreak zone
- Mobile homes will not protect you — evacuate to a permanent structure immediately
- If a tornado warning is issued for your location, move to your shelter without delay
Stay with CabarrusWeekly.com for continuous live coverage of today’s tornado outbreak across Illinois, Missouri, and Arkansas.
