A fairly traditional setup for severe weather was in place over the state, a nice departure from events to this point in the season, with a cold front situated to the northwest moving towards and into the area. Convective initiation was expected along and ahead of the frontal boundary during the afternoon and evening hours, which came to fruition. Supporting features of the environment included SB and MUCAPE values around 1000-2000+ J/kg and effective bulk shear in the 30 to 40 kt range. More borderline support for severe potential was seen for hail with CAPE values in the hail growth region around 500 J/kg and DCAPE values around 800-1000 J/kg. All in all, initiated storms were either of the isolated or multi-cellular variety throughout much of the event. With a semi-supportive environment for severe weather, the storms acted as much with multiple reports of nickel to quarter sized hail and wind damage including large tree branches and farm outbuildings.

Hail in WINNEBAGO, IOWA
From 25-JUL-18 15:47:00 to 25-JUL-18 15:47:00 (CST-6)
Location: VINJE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported nickel sized hail.

Hail in WEBSTER, IOWA
From 25-JUL-18 19:19:00 to 25-JUL-18 19:19:00 (CST-6)
Location: FT DODGE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Public reported quarter sized hail. This is a delayed report.

Hail in HAMILTON, IOWA
From 25-JUL-18 19:38:00 to 25-JUL-18 19:38:00 (CST-6)
Location: KAMRAR
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Public reported nickel sized hail. This is a delayed report.

Thunderstorm Wind in WINNEBAGO, IOWA
From 25-JUL-18 17:05:00 to 25-JUL-18 17:05:00 (CST-6)
Location: RAKE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Public reported large limbs, 3 to 4 inches in diameter, down at farmsteads between 60th and 90th avenues on 490th St. This is a delayed report.

Hail in CERRO GORDO, IOWA
From 25-JUL-18 17:55:00 to 25-JUL-18 17:55:00 (CST-6)
Location: PORTLAND
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported quarter sized hail.

Thunderstorm Wind in CERRO GORDO, IOWA
From 25-JUL-18 18:00:00 to 25-JUL-18 18:00:00 (CST-6)
Location: MASON CITY
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported several large branches and one larger tree down. This is a delayed report and was made via social media.

Hail in CERRO GORDO, IOWA
From 25-JUL-18 18:03:00 to 25-JUL-18 18:03:00 (CST-6)
Location: MASON CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Public reported quarter sized hail. This is a delayed report.

Thunderstorm Wind in HANCOCK, IOWA
From 25-JUL-18 18:21:00 to 25-JUL-18 18:21:00 (CST-6)
Location: KANAWHA
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Social Media

Public reported their fence blown down in their yard. This is a delayed report.

Hail in HUMBOLDT, IOWA
From 25-JUL-18 18:50:00 to 25-JUL-18 18:50:00 (CST-6)
Location: RUTLAND
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported a mix of pea to quarter sized hail and some branches of about an inch in diameter or less down.

Hail in WINNEBAGO, IOWA
From 25-JUL-18 16:00:00 to 25-JUL-18 16:00:00 (CST-6)
Location: NEILS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported quarter sized hail.

Thunderstorm Wind in WRIGHT, IOWA
From 25-JUL-18 18:55:00 to 25-JUL-18 18:55:00 (CST-6)
Location: DOWS
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Fire department reported large limbs down in town of around 6 to 8 inches in diameter.

Thunderstorm Wind in BREMER, IOWA
From 25-JUL-18 19:02:00 to 25-JUL-18 19:02:00 (CST-6)
Location: WAVERLY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported a large limb broken, wind speed unknown at the time. This is a delayed report.

Thunderstorm Wind in BUTLER, IOWA
From 25-JUL-18 19:00:00 to 25-JUL-18 19:00:00 (CST-6)
Location: BRISTOW
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Local radio station relayed report of grain bin damage north of Bristow. This is a delayed report.