⚠️ Severe Thunderstorm Warning – Benton, IA; Cedar, IA; Iowa, IA; Johnson, IA; Jones, IA; Linn, IA; Muscatine, IA; Washington, IA – Monday, July 20, 2026

Severe Thunderstorm Warning issued July 20 at 10:51AM CDT until July 20 at 11:45AM 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…
Johnson County in east central Iowa…
Southern Benton County in east central Iowa…
Northern Washington County in southeastern Iowa…
Southern Jones County in east central Iowa…
Northern Muscatine County in east central Iowa…
Southern Linn County in east central Iowa…
Eastern Iowa County in east central Iowa…

* Until 1145 AM CDT.

* At 1051 AM CDT, severe thunderstorms were located along a line
extending from near Hale to near Hannen Lake Park, moving southeast
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, Muscatine, Anamosa, Tipton, Marengo, West
Branch, Durant, Mechanicsville, Stanwood, Marion, Coralville, North
Liberty, Hiawatha, Mount Vernon, West Liberty, Robins,
Williamsburg, Wilton, and Kalona.

This includes the following highways…
Interstate 80 in Iowa between mile markers 219 and 278.
Interstate 380 between mile markers 1 and 26.

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 these storms.
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 these storms, 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.