A low pressure system slowly dropping SE form the eastern Dakotas and SW Minnesota dragged a cold front across the state during the evening and overnight hours of the 24th of June. Within the warm sector, MUCAPE values peaked in excess of 3000 J/kg during peak heating and scaled back a bit overnight but remained around or in excess of 2000 J/kg. Effective shear values were supportive for organized convection, residing in the 35 to around 50 kt range. Morning and lingering convective activity likely played a role in initiating some storms with remnant outflow boundaries around. As a result, a number of isolated or clustered organized storms were seen during the evening and overnight hours and produced a number of reports of large hail and damaging winds. The largest hail reported was 3 inches in both Palo Alto and Black Hawk counties. A couple of funnel clouds were reported as well.

Hail in WARREN, IOWA
From 24-JUN-23 13:30:00 to 24-JUN-23 13:30:00 (CST-6)
Location: INDIANOLA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported 1 inch hail, relayed from NWS Chat.

Hail in WARREN, IOWA
From 24-JUN-23 13:31:00 to 24-JUN-23 13:31:00 (CST-6)
Location: INDIANOLA
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

KCCI relayed viewer report of 1.75 inch hail. Delayed report.

Hail in FRANKLIN, IOWA
From 24-JUN-23 15:00:00 to 24-JUN-23 15:00:00 (CST-6)
Location: HANSELL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported hail, with largest stones being quarter sized.

Funnel Cloud in BOONE, IOWA
From 24-JUN-23 15:10:00 to 24-JUN-23 15:10:00 (CST-6)
Location: BOONE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported a brief funnel cloud north of Boone. Image viewed on social media.

Thunderstorm Wind in BLACK HAWK, IOWA
From 24-JUN-23 15:44:00 to 24-JUN-23 15:44:00 (CST-6)
Location: NORTH CEDAR
Magnitude: 56.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Broadcast Media

KWWL relayed images of uprooted tree and gazebo damage. Time estimated from radar.

Hail in WAPELLO, IOWA
From 24-JUN-23 15:49:00 to 24-JUN-23 15:49:00 (CST-6)
Location: DUDLEY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported penny sized hail via mPing app.

Hail in BREMER, IOWA
From 24-JUN-23 15:55:00 to 24-JUN-23 15:55:00 (CST-6)
Location: WAVERLY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported quarter sized hail via mPing app.

Hail in WAPELLO, IOWA
From 24-JUN-23 15:59:00 to 24-JUN-23 15:59:00 (CST-6)
Location: BLAKESBURG ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported quarter sized hail via mPing app.

Hail in WAPELLO, IOWA
From 24-JUN-23 16:02:00 to 24-JUN-23 16:02:00 (CST-6)
Location: BLAKESBURG
Magnitude: 1.00 
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported at least quarter sized hail. Also noted flag pole snapped in front yard.

Hail in WAPELLO, IOWA
From 24-JUN-23 16:04:00 to 24-JUN-23 16:04:00 (CST-6)
Location: BLAKESBURG ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported quarter sized hail.

Hail in BUTLER, IOWA
From 24-JUN-23 16:08:00 to 24-JUN-23 16:08:00 (CST-6)
Location: AREDALE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported quarter sized hail via mPing app.

Thunderstorm Wind in CASS, IOWA
From 24-JUN-23 16:13:00 to 24-JUN-23 16:13:00 (CST-6)
Location: MARNE
Magnitude: 56.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported power lines down and debris along Boston rd. This is a delayed report.

Hail in WAPELLO, IOWA
From 24-JUN-23 16:16:00 to 24-JUN-23 16:16:00 (CST-6)
Location: RUTLEDGE
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported half dollar sized hail via spotternetwork.org.

Hail in WAPELLO, IOWA
From 24-JUN-23 16:22:00 to 24-JUN-23 16:22:00 (CST-6)
Location: RUTLEDGE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported quarter sized hail via mPing app.

Thunderstorm Wind in CASS, IOWA
From 24-JUN-23 16:23:00 to 24-JUN-23 16:23:00 (CST-6)
Location: MARNE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported, via social media, multiple large branches down on the road 2 miles west of Marne.

Hail in WAPELLO, IOWA
From 24-JUN-23 16:25:00 to 24-JUN-23 16:25:00 (CST-6)
Location: AGENCY
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported tennis ball sized hail.

Hail in WAPELLO, IOWA
From 24-JUN-23 16:26:00 to 24-JUN-23 16:26:00 (CST-6)
Location: OTTUMWA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported quarter sized hail.

Hail in WAPELLO, IOWA
From 24-JUN-23 16:57:00 to 24-JUN-23 16:57:00 (CST-6)
Location: ELDON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported quarter sized hail via mPing app.

Hail in KOSSUTH, IOWA
From 24-JUN-23 20:28:00 to 24-JUN-23 20:28:00 (CST-6)
Location: SEXTON
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported half dollar sized hail east of Algona on Highway 18. Location estimated from radar.

Hail in PALO ALTO, IOWA
From 24-JUN-23 21:52:00 to 24-JUN-23 21:52:00 (CST-6)
Location: EMMETSBURG
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported golf ball sized hail falling in Emmetsburg.

Hail in PALO ALTO, IOWA
From 24-JUN-23 21:55:00 to 24-JUN-23 21:55:00 (CST-6)
Location: EMMETSBURG
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement relayed report of nearly baseball sized hail in Emmetsburg. This is a delayed report and time estimated from radar.

Hail in PALO ALTO, IOWA
From 24-JUN-23 22:04:00 to 24-JUN-23 22:04:00 (CST-6)
Location: CYLINDER
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency manager reported golf ball sized hail intermixed with quarter sized hail north of Cylinder.

Hail in PALO ALTO, IOWA
From 24-JUN-23 22:00:00 to 24-JUN-23 22:00:00 (CST-6)
Location: CYLINDER
Magnitude: 3.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Local media relayed report of measured 3 inch hail west of Cylinder. This is a delayed report and time and location estimated from radar.

Hail in BLACK HAWK, IOWA
From 24-JUN-23 23:49:00 to 24-JUN-23 23:49:00 (CST-6)
Location: CEDAR FALLS
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter measured ping pong ball sized hail in Cedar Falls. .

Hail in BLACK HAWK, IOWA
From 24-JUN-23 23:48:00 to 24-JUN-23 23:48:00 (CST-6)
Location: WATERLOO
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported golf ball sized hail via mPing app.

Hail in BLACK HAWK, IOWA
From 25-JUN-23 00:00:00 to 25-JUN-23 00:00:00 (CST-6)
Location: EVANSDALE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

KWWL forwarded report of golf ball sized hail.

Hail in BLACK HAWK, IOWA
From 25-JUN-23 00:00:00 to 25-JUN-23 00:00:00 (CST-6)
Location: CASEBEER HGTS
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported half dollar sized hail.

Hail in BLACK HAWK, IOWA
From 25-JUN-23 00:03:00 to 25-JUN-23 00:03:00 (CST-6)
Location: ORANGE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported golf ball sized hail via mPing app.

Hail in BLACK HAWK, IOWA
From 24-JUN-23 23:55:00 to 24-JUN-23 23:55:00 (CST-6)
Location: EVANSDALE
Magnitude: 3.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported baseball and larger hail.

Hail in BLACK HAWK, IOWA
From 24-JUN-23 23:50:00 to 24-JUN-23 23:50:00 (CST-6)
Location: WATERLOO
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 BLACK HAWK, IOWA
From 24-JUN-23 23:52:00 to 24-JUN-23 23:52:00 (CST-6)
Location: WATERLOO
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported golf ball sized hail.

Hail in BLACK HAWK, IOWA
From 24-JUN-23 23:55:00 to 24-JUN-23 23:55:00 (CST-6)
Location: WATERLOO
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

KWWL relayed viewer report of baseball sized hail.

Hail in BLACK HAWK, IOWA
From 25-JUN-23 00:00:00 to 25-JUN-23 00:00:00 (CST-6)
Location: GILBERTVILLE
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

CoCoRaHS observer reported shredded leaves from ping pong ball sized hail. This is a delayed report.

Hail in PALO ALTO, IOWA
From 24-JUN-23 22:00:00 to 24-JUN-23 22:00:00 (CST-6)
Location: CYLINDER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported quarter sized hail.

Hail in BLACK HAWK, IOWA
From 24-JUN-23 23:45:00 to 24-JUN-23 23:45:00 (CST-6)
Location: WATERLOO
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

CoCoRaHS observer reported shredded leaves from ping pong ball sized hail.

Hail in PALO ALTO, IOWA
From 24-JUN-23 21:55:00 to 24-JUN-23 21:55:00 (CST-6)
Location: EMMETSBURG
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency manager reported leaf damage to tress around down and some brachhes down as well from golf ball sized hail. This is a delayed report.

Thunderstorm Wind in KOSSUTH, IOWA
From 24-JUN-23 22:15:00 to 24-JUN-23 22:15:00 (CST-6)
Location: SWEA CITY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Large tree branch downed in Swea City. Time estimated from radar.

Tornado in POCAHONTAS, IOWA
From 24-JUN-23 22:02:00 to 24-JUN-23 22:07:00 (CST-6)
Location: POCAHONTAS MUNI ARPT
Tornado F-scale: EF0
Property damage: 10.00K
Crop damage: 0.30K
Reported by: Social Media

Tornado developed north of Pocahontas and moved east northeast through many open cropland. The tornado did move a grain bin off its foundation and rolled it into a field across the road. The tornado continued for another half mile before lifting.