⚠️ Severe Thunderstorm Warning – Cedar, IA; Iowa, IA; Johnson, IA; Linn, IA – Saturday, July 4, 2026

Severe Thunderstorm Warning issued July 4 at 4:25AM CDT until July 4 at 5:30AM CDT by NWS Quad Cities IA IL

Details

SVRDVN

The National Weather Service in the Quad Cities has issued a

* Severe Thunderstorm Warning for…
Cedar County in east central Iowa…
Northern Johnson County in east central Iowa…
Southern Linn County in east central Iowa…
Northeastern Iowa County in east central Iowa…

* Until 530 AM CDT.

* At 424 AM CDT, a severe thunderstorm was located over F.W. Kent
Park, or 10 miles northwest of Iowa City, moving east at 40 mph.

HAZARD…60 mph wind gusts and penny size hail.

SOURCE…Radar indicated.

IMPACT…Expect damage to roofs, siding, and trees.

* Locations impacted include…
Cedar Rapids, Iowa City, Tipton, West Branch, Mechanicsville,
Stanwood, Coralville, North Liberty, Mount Vernon, Lisbon, Solon,
Tiffin, Ely, Walford, University Heights, Swisher, Oxford,
Shueyville, Lake Macbride State Park, and Rochester.

This includes the following highways…
Interstate 80 in Iowa between mile markers 224 and 269.
Interstate 380 between mile markers 1 and 14.

Instructions

For your protection move to an interior room on the lowest floor of a
sturdy building.

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in the Quad Cities.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.