A shortwave trough supplied enough moisture and weak lift to sustain non sever convection through much of the morning of September 17th. By evening a secondary lobe of low pressure lifted into Iowa, enhancing convective development. MLCAPE over 2000 J/kg, curve hodographs, and steep mid level lapse rates supported large hail development. Convection lasted much of the evening and overnight across southern Iowa with several of the multicell storms producing severe hail. In addition, storms produced pockets of heavy rain with area receiving three to five inches of rain.

Hail in POLK, IOWA
From 17-SEP-22 19:00:00 to 17-SEP-22 19:00:00 (CST-6)
Location: DODGE FLD ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Hail in POLK, IOWA
From 17-SEP-22 19:12:00 to 17-SEP-22 19:12:00 (CST-6)
Location: LOVINGTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MONROE, IOWA
From 17-SEP-22 18:50:00 to 17-SEP-22 18:50:00 (CST-6)
Location: HOCKING
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DALLAS, IOWA
From 17-SEP-22 18:47:00 to 17-SEP-22 18:47:00 (CST-6)
Location: HADDEN HILL
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MARION, IOWA
From 17-SEP-22 19:36:00 to 17-SEP-22 19:36:00 (CST-6)
Location: LAKE RED ROCK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MARION, IOWA
From 17-SEP-22 19:50:00 to 17-SEP-22 19:50:00 (CST-6)
Location: PELLA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DALLAS, IOWA
From 17-SEP-22 19:50:00 to 17-SEP-22 19:50:00 (CST-6)
Location: MINBURN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Hail in MARION, IOWA
From 17-SEP-22 19:50:00 to 17-SEP-22 19:50:00 (CST-6)
Location: PELLA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in CASS, IOWA
From 17-SEP-22 19:58:00 to 17-SEP-22 19:58:00 (CST-6)
Location: GRISWOLD
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Lightning in DALLAS, IOWA
From 17-SEP-22 20:00:00 to 17-SEP-22 20:00:00 (CST-6)
Location: DALLAS CENTER ARPT
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Vehicle struck by lightning at intersection of Highway 44 and Sportsmans Club Road. Delayed report from Dallas Center FD. Time estimated by radar.

Hail in TAYLOR, IOWA
From 17-SEP-22 20:00:00 to 17-SEP-22 20:00:00 (CST-6)
Location: LENOX ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Dime to quarter sized hail.

Hail in UNION, IOWA
From 17-SEP-22 20:31:00 to 17-SEP-22 20:31:00 (CST-6)
Location: CRESTON ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report via Spotter Network.

Hail in UNION, IOWA
From 17-SEP-22 20:47:00 to 17-SEP-22 20:47:00 (CST-6)
Location: CRESTON
Magnitude: 1.75 
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail damage to vehicles with one possibly totaled. Delayed report, time estimated by radar.

Hail in UNION, IOWA
From 17-SEP-22 20:51:00 to 17-SEP-22 20:51:00 (CST-6)
Location: CRESTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report from Spotter Network.

Hail in ADAMS, IOWA
From 17-SEP-22 21:45:00 to 17-SEP-22 21:45:00 (CST-6)
Location: QUINCY
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Ping pong sized hail at Lake Acaria.

Hail in ADAMS, IOWA
From 17-SEP-22 21:45:00 to 17-SEP-22 21:45:00 (CST-6)
Location: CORNING
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ADAMS, IOWA
From 17-SEP-22 21:55:00 to 17-SEP-22 21:55:00 (CST-6)
Location: CORNING
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Time estimated by radar.

Hail in BLACK HAWK, IOWA
From 17-SEP-22 22:05:00 to 17-SEP-22 22:05:00 (CST-6)
Location: HUDSON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BLACK HAWK, IOWA
From 17-SEP-22 22:03:00 to 17-SEP-22 22:03:00 (CST-6)
Location: ORANGE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Delayed report via social media. Time estimated by radar.

Hail in MONROE, IOWA
From 18-SEP-22 01:55:00 to 18-SEP-22 01:55:00 (CST-6)
Location: ALBIA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Delayed report, time estimated by radar.

Heavy Rain in MARION, IOWA
From 17-SEP-22 00:00:00 to 17-SEP-22 21:08:00 (CST-6)
Location: PELLA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Day total up to 10 pm. Heaviest rain fell between 730 pm and 9 pm.

Heavy Rain in LUCAS, IOWA
From 17-SEP-22 01:07:00 to 18-SEP-22 01:07:00 (CST-6)
Location: LUCAS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A 24 hour rain total of 3.38 inches.

Heavy Rain in WAPELLO, IOWA
From 17-SEP-22 02:05:00 to 18-SEP-22 02:05:00 (CST-6)
Location: BLAKESBURG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A 24 hour rain total of 3.46 inches.

Heavy Rain in WAPELLO, IOWA
From 17-SEP-22 02:06:00 to 18-SEP-22 02:06:00 (CST-6)
Location: RUTLEDGE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A 24 hour rain total of 3.50 inches.

Heavy Rain in MARION, IOWA
From 17-SEP-22 04:00:00 to 18-SEP-22 04:00:00 (CST-6)
Location: PELLA MUNI ARPT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A 24 hour rain total of 4.45 inches.

Heavy Rain in MARION, IOWA
From 17-SEP-22 04:00:00 to 18-SEP-22 04:00:00 (CST-6)
Location: FIFIELD
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A 24 hour rain total of 4.45 inches.

Heavy Rain in MARION, IOWA
From 17-SEP-22 04:15:00 to 18-SEP-22 04:15:00 (CST-6)
Location: PELLA MUNI ARPT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

A 24 hour rain total of 3.30 inches.

Heavy Rain in WAPELLO, IOWA
From 17-SEP-22 04:15:00 to 18-SEP-22 04:15:00 (CST-6)
Location: BLAKESBURG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A 24 hour rain total of 3.69 inches.

Heavy Rain in WAPELLO, IOWA
From 17-SEP-22 04:19:00 to 18-SEP-22 04:19:00 (CST-6)
Location: RUTLEDGE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A 24 hour rain total of 3.70 inches.

Heavy Rain in LUCAS, IOWA
From 17-SEP-22 05:00:00 to 18-SEP-22 05:00:00 (CST-6)
Location: WILLIAMSON
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A 24 hour rain total of 5.23 inches.

Heavy Rain in CLARKE, IOWA
From 17-SEP-22 06:00:00 to 18-SEP-22 06:00:00 (CST-6)
Location: OSCEOLA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A 24 hour rain total of 3.15 inches.

Heavy Rain in DAVIS, IOWA
From 17-SEP-22 06:00:00 to 18-SEP-22 06:00:00 (CST-6)
Location: FLORIS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A 24 hour rain total of 3.17 inches.

Heavy Rain in DAVIS, IOWA
From 17-SEP-22 06:00:00 to 18-SEP-22 06:00:00 (CST-6)
Location: ASH GROVE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A 24 hour rain total of 3.30 inches.

Heavy Rain in WAPELLO, IOWA
From 17-SEP-22 06:14:00 to 18-SEP-22 06:14:00 (CST-6)
Location: OTTUMWA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A 24 hour rain total of 3.54 inches.

Heavy Rain in WAPELLO, IOWA
From 17-SEP-22 06:30:00 to 18-SEP-22 06:30:00 (CST-6)
Location: OTTUMWA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A 24 hour rain total of 3.75 inches.

Heavy Rain in LUCAS, IOWA
From 17-SEP-22 07:15:00 to 18-SEP-22 07:15:00 (CST-6)
Location: CHARITON
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A 24 hour rain total of 3.60 inches.

Heavy Rain in LUCAS, IOWA
From 17-SEP-22 08:00:00 to 18-SEP-22 08:00:00 (CST-6)
Location: LUCAS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A 24 hour rain total of 4.70 inches.

Heavy Rain in LUCAS, IOWA
From 17-SEP-22 08:00:00 to 18-SEP-22 08:00:00 (CST-6)
Location: WILLIAMSON
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A 24 hour rain total of 5.23 inches.

Heavy Rain in APPANOOSE, IOWA
From 17-SEP-22 08:00:00 to 18-SEP-22 08:00:00 (CST-6)
Location: ICONIUM
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A 24 hour rain total of 3.50 inches.

Heavy Rain in DAVIS, IOWA
From 17-SEP-22 08:00:00 to 18-SEP-22 08:00:00 (CST-6)
Location: PULASKI
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A 24 hour rain total of 3.40 inches.

Heavy Rain in DAVIS, IOWA
From 17-SEP-22 08:00:00 to 18-SEP-22 08:00:00 (CST-6)
Location: PARIS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A 24 hour rain total of 3.30 inches.

Heavy Rain in DAVIS, IOWA
From 17-SEP-22 08:00:00 to 18-SEP-22 08:00:00 (CST-6)
Location: FLORIS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A 24 hour rain total of 3.40 inches.

Heavy Rain in MAHASKA, IOWA
From 17-SEP-22 08:15:00 to 18-SEP-22 08:15:00 (CST-6)
Location: OSKALOOSA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A 24 hour rain total of 4.70 inches.

Heavy Rain in APPANOOSE, IOWA
From 17-SEP-22 10:00:00 to 18-SEP-22 14:48:00 (CST-6)
Location: UNIONVILLE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A 24 hour rain total of 5.50 inches.

Hail in JASPER, IOWA
From 17-SEP-22 16:53:00 to 17-SEP-22 16:53:00 (CST-6)
Location: NEWTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Penny and nickel sized hail with some up to quarter sized mixed in.

Hail in LUCAS, IOWA
From 17-SEP-22 17:42:00 to 17-SEP-22 17:42:00 (CST-6)
Location: CHARITON MUNI ARPT
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LUCAS, IOWA
From 17-SEP-22 17:58:00 to 17-SEP-22 17:58:00 (CST-6)
Location: CHARITON
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail received from broadcast media via social media.

Hail in WARREN, IOWA
From 17-SEP-22 18:09:00 to 17-SEP-22 18:09:00 (CST-6)
Location: NORWALK
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail just shy of quarter sized. Time estimated by radar.

Hail in WARREN, IOWA
From 17-SEP-22 18:12:00 to 17-SEP-22 18:12:00 (CST-6)
Location: NORWALK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Pea to quarter sized hail reported.

Hail in POLK, IOWA
From 17-SEP-22 18:17:00 to 17-SEP-22 18:17:00 (CST-6)
Location: FT DES MOINES
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter sized hail. Time estimated by radar.

Hail in POLK, IOWA
From 17-SEP-22 18:20:00 to 17-SEP-22 18:20:00 (CST-6)
Location: DES MOINES
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MONROE, IOWA
From 17-SEP-22 18:32:00 to 17-SEP-22 18:32:00 (CST-6)
Location: MELROSE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in WARREN, IOWA
From 17-SEP-22 18:23:00 to 17-SEP-22 18:23:00 (CST-6)
Location: SCOTCH RIDGE
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter to ping pong ball sized hail.

Hail in JASPER, IOWA
From 17-SEP-22 20:40:00 to 17-SEP-22 20:40:00 (CST-6)
Location: BAXTER
Magnitude: 1.00 
Reported by: Trained Spotter

Report of corn stripped due to hail. Delayed report. Time estimated via radar.

Hail in MONROE, IOWA
From 17-SEP-22 18:49:00 to 17-SEP-22 18:49:00 (CST-6)
Location: HOCKING
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Delayed report. Time estimated via radar.

Hail in POLK, IOWA
From 17-SEP-22 18:55:00 to 17-SEP-22 18:55:00 (CST-6)
Location: RIDER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MONROE, IOWA
From 17-SEP-22 18:55:00 to 17-SEP-22 18:55:00 (CST-6)
Location: ALBIA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Delayed report, time estimated via radar.

Hail in POLK, IOWA
From 17-SEP-22 18:58:00 to 17-SEP-22 18:58:00 (CST-6)
Location: GRIMES
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter