A shortwave dropped across Iowa, helping to increase warm air advection and moisture transport into the area. Steep lapse rates around 8 C/km and MLCAPE of 1000 J/kg was accompanied by deep layer shear of over 40 knots, creating an environment supportive of large hail. Scattered storms strengthened through the afternoon, with a few producing quarter to ping pong ball sized hail through the evening.

Hail in POLK, IOWA
From 22-JUN-21 16:48:00 to 22-JUN-21 16:48:00 (CST-6)
Location: JOHNSTON
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report via mping of ping pong ball sized hail.

Hail in POLK, IOWA
From 22-JUN-21 16:49:00 to 22-JUN-21 16:49:00 (CST-6)
Location: WEST DES MOINES
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report via mping of penny sized hail.

Hail in WARREN, IOWA
From 22-JUN-21 16:58:00 to 22-JUN-21 16:58:00 (CST-6)
Location: NORWALK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report via mping of quarter sized hail.

Hail in WARREN, IOWA
From 22-JUN-21 17:00:00 to 22-JUN-21 17:00:00 (CST-6)
Location: NORWALK
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report from social media of nickel sized hail relayed via social media. Time estimated via radar.

Hail in WARREN, IOWA
From 22-JUN-21 17:05:00 to 22-JUN-21 17:05:00 (CST-6)
Location: SUMMERSET
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported road completely covered with dime to quarter sized hail along highway G24 near Highway 65/69 intersection. Time estimated via radar.

Hail in POLK, IOWA
From 22-JUN-21 16:22:00 to 22-JUN-21 16:22:00 (CST-6)
Location: GRIMES
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public report of nickel sized hail.

Hail in POLK, IOWA
From 22-JUN-21 16:25:00 to 22-JUN-21 16:25:00 (CST-6)
Location: GRIMES
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

NWS employee reported nickel to quarter sized hail.

Thunderstorm Wind in DALLAS, IOWA
From 22-JUN-21 16:28:00 to 22-JUN-21 16:28:00 (CST-6)
Location: HADDEN HILL
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency manager reported 60 mph wind gust.

Hail in POLK, IOWA
From 22-JUN-21 16:30:00 to 22-JUN-21 16:30:00 (CST-6)
Location: DODGE FLD ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported quarter sized hail.

Hail in POLK, IOWA
From 22-JUN-21 16:30:00 to 22-JUN-21 16:30:00 (CST-6)
Location: GRIMES
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report via mping of quarter sized hail.

Hail in WARREN, IOWA
From 22-JUN-21 17:21:00 to 22-JUN-21 17:21:00 (CST-6)
Location: INDIANOLA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report via mping of penny sized hail.

Hail in WARREN, IOWA
From 22-JUN-21 17:22:00 to 22-JUN-21 17:22:00 (CST-6)
Location: INDIANOLA
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency manager reported quarter to ping pong ball sized hail.

Hail in WARREN, IOWA
From 22-JUN-21 17:25:00 to 22-JUN-21 17:25:00 (CST-6)
Location: ACKWORTH
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Ping pong ball sized hail along highway 92 east of Indianola. Time estimated via radar.

Hail in WARREN, IOWA
From 22-JUN-21 17:30:00 to 22-JUN-21 17:30:00 (CST-6)
Location: BEECH
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report via mping of quarter sized hail.

Hail in WARREN, IOWA
From 22-JUN-21 17:30:00 to 22-JUN-21 17:30:00 (CST-6)
Location: MILO
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report via mping of penny sized hail.

Hail in POLK, IOWA
From 22-JUN-21 16:33:00 to 22-JUN-21 16:33:00 (CST-6)
Location: GRIMES
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Delayed report of quarter sized hail. Time estimated via radar.

Hail in POLK, IOWA
From 22-JUN-21 16:35:00 to 22-JUN-21 16:35:00 (CST-6)
Location: RIDER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public report via mping of quarter sized hail.

Hail in POLK, IOWA
From 22-JUN-21 16:38:00 to 22-JUN-21 16:38:00 (CST-6)
Location: DODGE FLD ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report via social media of quarter sized hail.

Thunderstorm Wind in DALLAS, IOWA
From 22-JUN-21 16:38:00 to 22-JUN-21 16:38:00 (CST-6)
Location: HADDEN HILL
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Personal weather station recorded 66 mph wind gust.

Hail in POLK, IOWA
From 22-JUN-21 16:39:00 to 22-JUN-21 16:39:00 (CST-6)
Location: CLIVE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Storm chaser reported quarter sized hail.

Hail in WARREN, IOWA
From 22-JUN-21 17:31:00 to 22-JUN-21 17:31:00 (CST-6)
Location: BEECH
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report via mping of ping pong ball sized hail.

Hail in GREENE, IOWA
From 22-JUN-21 17:40:00 to 22-JUN-21 17:40:00 (CST-6)
Location: SCRANTON
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report via social media of ping pong ball sized hail. Time estimated by radar.

Hail in GREENE, IOWA
From 22-JUN-21 17:50:00 to 22-JUN-21 17:50:00 (CST-6)
Location: COOPER
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported half dollar sized hail.

Hail in GUTHRIE, IOWA
From 22-JUN-21 18:00:00 to 22-JUN-21 18:02:00 (CST-6)
Location: BAGLEY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency manager reported two to three minutes of dime to quarter sized hail.

Hail in SAC, IOWA
From 22-JUN-21 16:39:00 to 22-JUN-21 16:39:00 (CST-6)
Location: LYTTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported mostly pea to nickel sized hail with a few quarter sized stones mixed in.

Hail in POLK, IOWA
From 22-JUN-21 16:42:00 to 22-JUN-21 16:42:00 (CST-6)
Location: LOVINGTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter sized hail reported via mping.

Hail in POLK, IOWA
From 22-JUN-21 16:45:00 to 22-JUN-21 16:45:00 (CST-6)
Location: CLIVE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported lots of quarter sized hail.

Hail in SAC, IOWA
From 22-JUN-21 16:45:00 to 22-JUN-21 16:45:00 (CST-6)
Location: LYTTON
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported ping pong ball sized hail.

Hail in POLK, IOWA
From 22-JUN-21 16:46:00 to 22-JUN-21 16:46:00 (CST-6)
Location: WINDSOR HGTS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported quarter sized hail.