Tornado Warning Active in Iowa; Severe Storms Slam Nebraska — June 6, 2026 — SevereWX

Severe Storms Overnight Across Iowa and Nebraska

The Storm Prediction Center maintains a Slight risk of severe thunderstorms across Iowa and Nebraska today, June 6, where scattered storms are producing damaging wind gusts, large hail, and at least one confirmed tornado threat. Multiple severe thunderstorm watches cover parts of the region until 4:00 AM EDT, fueling a rash of severe thunderstorm warnings from southeast Nebraska into southwest Iowa, plus a tornado warning now underway in Cass County, Iowa. Residents from northeast Kansas to southeast Iowa should monitor radar closely as storms pulse and intensify.

Storms earlier fired in northeast Kansas and northwest Missouri, but the focus has shifted eastward with intense activity over Nebraska and Iowa right now. York, Fillmore, and Hamilton counties in Nebraska along with numerous Iowa counties face ongoing severe thunderstorm warnings into the next hour.

Timeline

6:48 PM EDT — Severe Thunderstorm Watch issued for southwest Iowa, southeast Nebraska until 1:00 AM EDT

A severe thunderstorm watch covers Fremont, Mills, Montgomery, Page, and Pottawattamie counties in Iowa plus Butler, Cass, Douglas, Gage, and Jefferson counties in Nebraska until 1:00 AM EDT. Storms in this area may bring damaging winds and large hail. Prepare now by knowing where to seek shelter.

6:49 PM EDT — Severe Thunderstorm Watch issued for northeast Kansas until 1:00 AM EDT

Counties across northeast Kansas including Brown, Marshall, Nemaha, Republic, and Washington are under a severe thunderstorm watch until 1:00 AM EDT. Expect potential for strong wind gusts and hail from developing thunderstorms. Stay weather-aware this evening.

6:49 PM EDT — Severe Thunderstorm Watch issued for northeast Kansas, northwest Missouri until 1:00 AM EDT

Doniphan County in Kansas along with Andrew, Atchison, Holt, and Nodaway counties in Missouri fall under this severe thunderstorm watch through 1:00 AM EDT. Thunderstorms capable of severe impacts are possible. Have a safety plan ready.

10:18 PM EDT — Mesoscale discussion flags severe threat in southern/eastern Wisconsin, adjacent Minnesota/Iowa

The Storm Prediction Center highlights a growing severe thunderstorm threat across parts of southern and eastern Wisconsin and adjacent southeast Minnesota and northeast Iowa. Conditions favor storms with damaging winds and large hail, potentially leading to a severe thunderstorm watch. Activity here remains a concern into the overnight hours.

10:35 PM EDT — Severe Thunderstorm Watch issued for north-central Kansas, south-central Nebraska until 1:00 AM EDT

Jewell County in Kansas plus Clay, Fillmore, Hamilton, Nuckolls, Polk, Thayer, and York counties in Nebraska are under this watch until 1:00 AM EDT. Pulsing storms could produce severe wind and hail. Monitor for warnings.

10:50 PM EDT — Severe Thunderstorm Watch issued for southeast Iowa until 4:00 AM EDT

Henry, Iowa, Jefferson, Johnson, Keokuk, Van Buren, and Washington counties in Iowa have a severe thunderstorm watch in place until 4:00 AM EDT. Longer-lived storms may bring damaging winds and isolated large hail overnight. Stay informed.

11:06 PM EDT — Severe Thunderstorm Watch issued for southern Iowa until 4:00 AM EDT

Adair, Adams, Appanoose, Cass, Clarke, Davis, Decatur, Jasper, Lucas, and Madison counties in Iowa are covered by this watch through 4:00 AM EDT. Strong to severe thunderstorms are expected with wind and hail threats. Heed any warnings issued.

11:10 PM EDT — Mesoscale discussion outlines severe risk eastern Nebraska, northwest Missouri, southwest Iowa

SPC notes increasing severe potential across eastern Nebraska into northwest Missouri and southwest Iowa. Storms here could intensify, prompting severe thunderstorm watch coverage. Damaging winds and hail are primary concerns right now.

12:11 AM EDT — Tornado Warning issued for Cass County, Iowa until 1:00 AM EDT

A tornado warning is in effect for Cass County, Iowa until 1:00 AM EDT, radar-indicated with severe thunderstorms nearby. Seek shelter immediately in a sturdy building away from windows. This marks the first tornado warning of the event.

12:33 AM EDT — Mesoscale discussion details severe threat across southern Iowa

The latest SPC mesoscale discussion emphasizes the ongoing severe weather threat in southern Iowa under severe thunderstorm watch 276. Storms continue to pose risks of damaging winds and large hail into the coming hours. Additional upgrades possible.

What's Next

Multiple severe thunderstorm watches persist until 4:00 AM EDT across Iowa, with storms pushing eastward and more severe thunderstorm warnings likely in the next couple of hours. Isolated tornado risk remains as long as discrete cells develop amid the Slight risk area. Check local NWS offices and radar for updates as conditions evolve overnight.

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