NEBRASKA — Significant severe weather is forecast to continue tomorrow Saturday May 16 across a broad corridor stretching from Colorado all the way through to Ohio, with very large hail, damaging winds, and a few tornadoes all possible as the active severe weather pattern maintains its grip across the central United States.
Max Velocity Weather updated the categorical outlook at 4:04 AM ET on May 15, 2026, placing the core Slight Risk zone centered over Omaha and Des Moines while a broader Marginal and Thunder risk extends across a massive multistate footprint.
Slight Risk Core Centered Over Omaha and Des Moines Saturday With Highest Severe Probability
The highest concentration of Saturday’s severe weather threat is outlined in the yellow Slight Risk zone centered over Omaha, Nebraska and Des Moines, Iowa, extending westward toward Denver, Colorado and representing the area with the greatest probability of significant severe weather activity during the day.
Communities within and surrounding the Slight Risk core including Sioux Falls, Omaha, Des Moines, Kansas City, and Denver face the best chance of encountering very large hail, damaging winds, and tornado activity as Saturday’s storm system develops across the region.
The Slight Risk designation indicates a 15 percent or greater probability of severe thunderstorms within 25 miles of any point in the outlined zone, making Saturday a day that residents across Nebraska, Iowa, and eastern Colorado need to take seriously.
Very Large Hail Damaging Winds and Tornadoes All Possible Across the Threat Corridor
Forecasters have identified very large hail, damaging winds, and a few tornadoes as all possible hazards with Saturday’s severe weather setup stretching from Colorado through Ohio, giving the event a multi-hazard character that residents across the entire corridor need to be aware of.
The combination of an active storm system and favorable atmospheric conditions across the central United States creates the environment needed for organized severe storm development capable of producing all three hazard types simultaneously across different portions of the threat zone.
Cities including Kansas City, St. Louis, Springfield IL, Indianapolis, Columbus, Cincinnati, Cleveland, and Pittsburgh all fall within the broader Marginal and Thunder risk zones, indicating that the severe weather footprint extends well into the Midwest and toward the Ohio Valley on Saturday.
Broad Marginal and Thunder Risk Spreading From Colorado Through Ohio and Into Pittsburgh
Beyond the core Slight Risk zone, a substantial Marginal risk zone spreads across a much wider area covering portions of Colorado, Nebraska, Kansas, Missouri, Illinois, Indiana, Ohio, and into western Pennsylvania including Pittsburgh on Saturday May 16.
The Thunder risk zone extends even further, blanketing an enormous geographic footprint from the Central Plains all the way through the Great Lakes region and into the mid-Atlantic corridor.
Residents across the entire swath from Denver and Colorado eastward through Columbus, Cleveland, and Pittsburgh should remain weather aware throughout Saturday and monitor updates from Max Velocity Weather as the severe weather pattern continues its multi-day run across the central United States. Stay with GordonRamsayClub.com for the latest updates.
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