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Tornadoes

High Probability of Tornadoes for the Midwest on Wednesday

Christy Bowen

2 hours ago
NOAA Storm Prediction Center Day 2 categorical severe weather outlook issued at 0559Z June 16, 2026, valid from 1200Z Wednesday June 17 through 1200Z Thursday June 18, showing a Moderate (Level 4 of 5) risk centered over central and southern Illinois and Indiana, an Enhanced (Level 3) risk across a broader corridor from Iowa through Kentucky, and Slight and Marginal risks extending through the Ohio Valley and into the Northeast — where all modes of severe weather including tornadoes, wind gusts up to 85 mph, and large hail are expected
The NOAA Storm Prediction Center's Day 2 outlook shows a Moderate risk of severe weather centered over Illinois and Indiana on Wednesday June 17 — where discrete supercells, strong tornadoes, and overnight twisters are among the most serious threats.

Forecasters are putting people in the Midwest on alert for a high probability of a tornado outbreak on Wednesday. Who is in the path of the potential severe weather, and why are meteorologists so concerned about the impending threat? We have everything that you need to know right here.

Chances of Tornadic Outbreak on Wednesday Increase

A new severe weather outbreak is looming on the horizon for the storm-weary Midwest. It has been a volatile start to the month of June in the nation's heartland. While conditions have improved to start the new work week, forecasters are warning that Wednesday is shaping up to be a hazardous day.

NOAA Weather Prediction Center national forecast map valid from 8am EDT Wednesday June 17 through 8am EDT Thursday June 18, 2026, showing severe thunderstorms possible across Iowa, Illinois, Indiana, Missouri, Ohio, and Kentucky, with heavy rain and flash flooding possible across the same zone and extending south through Louisiana and the Gulf Coast
Wednesday's NOAA/WPC forecast map shows the full scope of the threat — severe thunderstorms from Iowa through Indiana and Kentucky, with heavy rain and flash flooding extending south to the Gulf Coast. (NOAA/NWS/WPC)

All modes of severe weather are on the table for Wednesday's outbreak. High winds, hail, flash flooding, and frequent lightning strikes are all possible. The winds will be powerful enough to carry the chance of long-lasting power outages. Most concerning is the chance that a widespread tornado outbreak could pose a significant risk to lives and property in the impact zone.

Why are forecasters turning their attention to Wednesday's weather pattern? A strong area of low pressure is expected to churn across the Midwest at this time. While these types of low-pressure events are common during the spring months, they are generally not this strong by the time that June rolls around. The storm will find an abundance of warm and humid air to play with, supporting the development of a rash of thunderstorms.

Some of these storm cells will likely go on to produce tornadic activity. The greatest risk of tornadoes on Wednesday is across southern and central portions of Illinois through the heart of Indiana.

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high chance of tornadoes on wednesdaysevere weather threats this weektravel disruptions likely on wednesday and thursday

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