Widespread thunderstorms developed in south central South Dakota late in the afternoon and continued across northwest Iowa during the evening hours. The storms produced quite a swath of hail as they progressed across the area.

Hail in SIOUX, IOWA
From 29-JUN-17 16:24:00 to 29-JUN-17 16:24:00 (CST-6)
Location: SIOUX CENTER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CLAY, IOWA
From 29-JUN-17 16:45:00 to 29-JUN-17 16:45:00 (CST-6)
Location: (3SE)SPENCER MUNI AR
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SIOUX, IOWA
From 29-JUN-17 16:50:00 to 29-JUN-17 16:50:00 (CST-6)
Location: BOYDEN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in WOODBURY, IOWA
From 29-JUN-17 17:00:00 to 29-JUN-17 17:00:00 (CST-6)
Location: SMITHLAND
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in WOODBURY, IOWA
From 29-JUN-17 15:15:00 to 29-JUN-17 15:15:00 (CST-6)
Location: SIOUX CITY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in PLYMOUTH, IOWA
From 29-JUN-17 15:20:00 to 29-JUN-17 15:20:00 (CST-6)
Location: MILLNERVILLE
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in WOODBURY, IOWA
From 29-JUN-17 17:00:00 to 29-JUN-17 17:00:00 (CST-6)
Location: SMITHLAND
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in IDA, IOWA
From 29-JUN-17 17:10:00 to 29-JUN-17 17:10:00 (CST-6)
Location: BATTLE CREEK
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in WOODBURY, IOWA
From 29-JUN-17 15:22:00 to 29-JUN-17 15:22:00 (CST-6)
Location: SIOUX CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in WOODBURY, IOWA
From 29-JUN-17 15:33:00 to 29-JUN-17 15:33:00 (CST-6)
Location: (SUX)SIOUX CITY ARPT
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Funnel Cloud in WOODBURY, IOWA
From 29-JUN-17 15:35:00 to 29-JUN-17 15:35:00 (CST-6)
Location: (SUX)SIOUX CITY ARPT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Reported by FSS tower personnel.

Hail in PLYMOUTH, IOWA
From 29-JUN-17 15:43:00 to 29-JUN-17 15:43:00 (CST-6)
Location: RUBLE
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in WOODBURY, IOWA
From 29-JUN-17 15:59:00 to 29-JUN-17 15:59:00 (CST-6)
Location: BRONSON
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SIOUX, IOWA
From 29-JUN-17 16:08:00 to 29-JUN-17 16:08:00 (CST-6)
Location: IRETON
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail covering the ground.

Hail in WOODBURY, IOWA
From 29-JUN-17 16:18:00 to 29-JUN-17 16:18:00 (CST-6)
Location: CLIMBING HILL
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SIOUX, IOWA
From 29-JUN-17 16:30:00 to 29-JUN-17 16:30:00 (CST-6)
Location: SIOUX CENTER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter