⚠️ Severe Thunderstorm Warning – Benton, IA; Cedar, IA; Iowa, IA; Johnson, IA; Linn, IA – Wednesday, August 12, 2026

Severe Thunderstorm Warning issued August 12 at 5:25AM CDT until August 12 at 6:30AM CDT by NWS Quad Cities IA IL

Details

SVRDVN

The National Weather Service in the Quad Cities has issued a

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

* Until 630 AM CDT.

* At 525 AM CDT, a severe thunderstorm was located over East Amana,
or 12 miles southwest of Cedar Rapids, moving east at 35 mph.

HAZARD…60 mph wind gusts and quarter size hail.

SOURCE…Radar indicated.

IMPACT…Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.

* Locations impacted include…
Cedar Rapids, Iowa City, West Branch, Coralville, North Liberty,
Solon, Tiffin, Ely, Walford, Swisher, Oxford, Shueyville, Oakdale,
Amana, Lake Macbride State Park, Rochester, Buchanan, Middle Amana,
Newport, and Cedar Valley.

This includes the following highways…
Interstate 80 in Iowa between mile markers 236 and 264.
Interstate 380 between mile markers 1 and 13.

Instructions

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature’s leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

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.