An upper level shortwave traveling across the region, paired with modest MUCAPE and moisture above the midlevels allowed for sub-severe to severe hail across portions of Northern Iowa through the late evening. Large hail of 2-3 inches occurred in Humboldt and Hancock counties with these storms.

Hail in HANCOCK, IOWA
From 11-AUG-23 09:10:00 to 11-AUG-23 09:10:00 (CST-6)
Location: KLEMME
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in HANCOCK, IOWA
From 11-AUG-23 09:14:00 to 11-AUG-23 09:14:00 (CST-6)
Location: GOODELL
Magnitude: 3.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CERRO GORDO, IOWA
From 11-AUG-23 20:21:00 to 11-AUG-23 20:21:00 (CST-6)
Location: THORNTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in FRANKLIN, IOWA
From 11-AUG-23 09:40:00 to 11-AUG-23 09:40:00 (CST-6)
Location: CHAPIN
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Delayed report of ping pong ball to quarter sized hail.

Hail in WRIGHT, IOWA
From 11-AUG-23 09:50:00 to 11-AUG-23 09:50:00 (CST-6)
Location: BELMOND
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in FRANKLIN, IOWA
From 11-AUG-23 09:55:00 to 11-AUG-23 09:55:00 (CST-6)
Location: HANSELL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Delayed report that was time estimated from radar.

Hail in BUTLER, IOWA
From 11-AUG-23 10:04:00 to 11-AUG-23 10:04:00 (CST-6)
Location: DUMONT
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Reported at intersection of IA HWY 3 and Evergreen Ave near Dumont.

Hail in PALO ALTO, IOWA
From 11-AUG-23 08:58:00 to 11-AUG-23 08:58:00 (CST-6)
Location: MALLARD
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Delayed report relayed via social media that was time estimated from radar.

Thunderstorm Wind in BUTLER, IOWA
From 11-AUG-23 20:30:00 to 11-AUG-23 20:30:00 (CST-6)
Location: PACKARD
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Report of trees down near the intersection of 160th and Noble Avenue which was time estimated.

Hail in HANCOCK, IOWA
From 11-AUG-23 08:13:00 to 11-AUG-23 08:13:00 (CST-6)
Location: HUTCHINS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Delayed report with time estimated from radar.

Hail in PALO ALTO, IOWA
From 11-AUG-23 08:58:00 to 11-AUG-23 08:58:00 (CST-6)
Location: MALLARD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in HANCOCK, IOWA
From 11-AUG-23 20:02:00 to 11-AUG-23 20:02:00 (CST-6)
Location: KLEMME
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Delayed report of 2 inch hail in Klemme relayed via social media, with time estimated from radar.

Hail in HUMBOLDT, IOWA
From 11-AUG-23 09:28:00 to 11-AUG-23 09:28:00 (CST-6)
Location: LIVERMORE
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

From 1 SW Lu Verne and is time estimated. Hail shattered the windshield of the car.