Midwest high-end tornado risk hinges on early Monday storm evolution

Key Points:

• A potential high-end tornado outbreak is forecast for parts of the Mid-Mississippi Valley on Monday, affecting over 60 million people from southern Minnesota to northern Alabama, with conditions hinging on early thunderstorm activity and cloud cover.
• Severe weather has been ongoing since last Thursday, including an EF-4 tornado in Enid, Oklahoma, and deadly twisters in Texas, with recent storms causing large hail, damaging winds, and flash flooding across Kansas, Missouri, and parts of the Midwest.
• The NOAA Storm Prediction Center has issued a Level 3 out of 5 severe thunderstorm risk, including a Level 4 risk for wind gusts over 60 mph, particularly threatening Missouri, Illinois, Indiana, and western Kentucky metro areas with potential long-track EF-3+ tornadoes.
• Storms are expected to begin Monday afternoon after 2 p.m. and continue through 10 p.m., with a broader Level 2 threat extending into southern Wisconsin, Iowa, Arkansas, and Middle Tennessee, including major cities like Chicago, Indianapolis, Memphis, and Nashville.
• On Tuesday, severe weather will shift east across the Lower Mississippi Valley, with a Level 2 threat from northeast Texas to central Kentucky, where storms could bring large hail, damaging winds, and isolated tornadoes, depending on Monday’s storm developments.