⚠️ Severe Thunderstorm Warning – Dubuque, IA – Friday, August 21, 2026

Severe Thunderstorm Warning issued August 21 at 4:26PM CDT until August 21 at 5:30PM CDT by NWS Quad Cities IA IL

Details

SVRDVN

The National Weather Service in the Quad Cities has issued a

* Severe Thunderstorm Warning for…
Eastern Dubuque County in northeastern Iowa…

* Until 530 PM CDT.

* At 425 PM CDT, a severe thunderstorm was located over Waupeton, or
13 miles southeast of Guttenberg, moving southeast at 20 mph.

HAZARD…60 mph wind gusts and half dollar size hail.

SOURCE…Radar indicated.

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

* Locations impacted include…
Dubuque, Asbury, Rickardsville, Sherrill, Sageville, Balltown,
Durango, Swiss Valley Park, Lock And Dam 11, Key West, Edmore,
Dubuque Regional Airport, Mud Lake Park, Finley’s Landing Park,
Rockdale, Cottage Hill, Mines of Spain, Waupeton, Five Points, and
East Rickardsville.

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.

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.

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