An upper level low pressure system was in place with a surface boundary stretched across Iowa from Storm Lake southeastward into southeast Iowa. This boundary provided the focus for thunderstorm development throughout the late afternoon and evening hours. The low level environment provided the needed conditions for many of these storms to rotate and produce funnel clouds and brief, weak tornadoes. Many of the tornadoes that occurred were brief touchdowns in open ares with no damage.

Funnel Cloud in POWESHIEK, IOWA
From 29-MAY-19 17:46:00 to 29-MAY-19 17:46:00 (CST-6)
Location: MONTEZUMA EAST ARPT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Mahaska County Sheriff, Poweshiek County Sheriff, and trained spotters reported on and off funnel clouds in the area.

Funnel Cloud in HAMILTON, IOWA
From 29-MAY-19 17:47:00 to 29-MAY-19 17:47:00 (CST-6)
Location: ELLSWORTH
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Local fire deparment reported a funnel cloud seen near the Hamilton/Hardin county line.

Tornado in SAC, IOWA
From 29-MAY-19 15:11:00 to 29-MAY-19 15:14:00 (CST-6)
Location: EARLY
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Several pictures of a brief tornado south of Early in open farmland.  Rated EF-Unknown as no damage indicators were impacted.

Funnel Cloud in SAC, IOWA
From 29-MAY-19 14:57:00 to 29-MAY-19 14:57:00 (CST-6)
Location: SCHALLER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Schaller fire department reported a funnel cloud.

Tornado in POCAHONTAS, IOWA
From 29-MAY-19 15:49:00 to 29-MAY-19 15:56:00 (CST-6)
Location: POCAHONTAS MUNI ARPT
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Tornado developed and moved southwest before becoming nearly stationary in open cropland. Persisted for several minutes before dissipating. Rated EF-Unknown as no damage indicators were impacted.

Hail in BREMER, IOWA
From 29-MAY-19 21:36:00 to 29-MAY-19 21:36:00 (CST-6)
Location: WAVERLY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported quarter sized hail.

Funnel Cloud in POWESHIEK, IOWA
From 29-MAY-19 17:58:00 to 29-MAY-19 17:58:00 (CST-6)
Location: MONTEZUMA SIG ARPT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported a funnel cloud.

Funnel Cloud in POWESHIEK, IOWA
From 29-MAY-19 18:01:00 to 29-MAY-19 18:01:00 (CST-6)
Location: MONTEZUMA EAST ARPT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported a funnel cloud.

Funnel Cloud in HARDIN, IOWA
From 29-MAY-19 18:30:00 to 29-MAY-19 18:30:00 (CST-6)
Location: BUCKEYE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported a funnel cloud via social media.

Funnel Cloud in HARDIN, IOWA
From 29-MAY-19 18:34:00 to 29-MAY-19 18:34:00 (CST-6)
Location: RADCLIFFE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported a funnel cloud visible from Ames.

Funnel Cloud in HARDIN, IOWA
From 29-MAY-19 18:35:00 to 29-MAY-19 18:35:00 (CST-6)
Location: DRAKE FLD ARPT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported a brief funnel cloud.

Tornado in HARDIN, IOWA
From 29-MAY-19 18:37:00 to 29-MAY-19 18:41:00 (CST-6)
Location: GARDEN CITY
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Tornado captured on video east of Garden City. The tornado remained mostly in open farmland but did some minor tree damage to a farmstead that was grazed.

Tornado in POWESHIEK, IOWA
From 29-MAY-19 18:01:00 to 29-MAY-19 18:14:00 (CST-6)
Location: MONTEZUMA EAST ARPT
Tornado F-scale: EF1
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Tornado extended to the ground after several minutes as a funnel cloud. Upon reaching the ground, the tornado encountered a farmstead, destroying an old barn and producing tree damage. Another farmstead was hit a bit further down the path with a large hoop building damaged. The remainder of the path was in open farmland.

Tornado in HARDIN, IOWA
From 29-MAY-19 19:15:00 to 29-MAY-19 19:19:00 (CST-6)
Location: NEW PROVIDENCE
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Storm chaser video shows tornado heading north through trees then across open fields before dissipating. Little if any damage occurred other than some minor tree damage.

Funnel Cloud in MARSHALL, IOWA
From 29-MAY-19 18:36:00 to 29-MAY-19 18:36:00 (CST-6)
Location: BANGOR
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported a funnel cloud.

Funnel Cloud in STORY, IOWA
From 29-MAY-19 18:39:00 to 29-MAY-19 18:39:00 (CST-6)
Location: ROLAND
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported several spotter reports of funnel clouds in the Roland area.

Funnel Cloud in TAMA, IOWA
From 29-MAY-19 19:06:00 to 29-MAY-19 19:06:00 (CST-6)
Location: LINCOLN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported a funnel cloud.

Tornado in SAC, IOWA
From 29-MAY-19 15:00:00 to 29-MAY-19 15:06:00 (CST-6)
Location: ODEBOLT
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

First of several weak tornadoes on this day. Tornado remained in open farmland several miles south of Schaller.  Rated EF-Unknown as no damage indicators were impacted.

Tornado in HUMBOLDT, IOWA
From 29-MAY-19 17:21:00 to 29-MAY-19 17:24:00 (CST-6)
Location: BRADGATE
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Relatively weak tornado was captured on video and remained in open rural areas.  Rated EF-Unknown as no damage indicators were impacted.

Funnel Cloud in HARDIN, IOWA
From 29-MAY-19 19:14:00 to 29-MAY-19 19:14:00 (CST-6)
Location: WHITTEN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported a funnel cloud.

Funnel Cloud in HARDIN, IOWA
From 29-MAY-19 19:30:00 to 29-MAY-19 19:30:00 (CST-6)
Location: WHITTEN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported a funnel cloud.

Tornado in POWESHIEK, IOWA
From 29-MAY-19 18:28:00 to 29-MAY-19 18:32:00 (CST-6)
Location: DEEP RIVER
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Tornado occurred in farmland northeast of Deep River.  Rated EF-Unknown as no damage indicators were impacted.

Tornado in POWESHIEK, IOWA
From 29-MAY-19 18:39:00 to 29-MAY-19 18:43:00 (CST-6)
Location: GUERNSEY
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Tornado captured on video by storm chasers, remained in open farmland with no damage. Rated EF-Unknown as no damage indicators were impacted.

Tornado in HARDIN, IOWA
From 29-MAY-19 19:29:00 to 29-MAY-19 19:31:00 (CST-6)
Location: ELDORA MUNI ARPT
Tornado F-scale: EF0
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Tornado occurred southwest of Eldora and was captured on video. The tornado removed the roof of a barn but otherwise remained in open farmland.

Tornado in HARDIN, IOWA
From 29-MAY-19 19:31:00 to 29-MAY-19 19:36:00 (CST-6)
Location: IOWA FALLS MUNI ARPT
Tornado F-scale: EF0
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Tornado reported from multiple sources just north of Highway 20 and moved northward. Slightly damaged a barn and did some tree damage at another farmstead. Otherwise, the tornado remained in open farmland.

Funnel Cloud in SAC, IOWA
From 29-MAY-19 15:06:00 to 29-MAY-19 15:06:00 (CST-6)
Location: ODEBOLT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Sac County Sheriff's Office relayed a public report of a funnel cloud or possible landspout spotted south of Highway 20 along Fox Ave, near Odebolt.

Funnel Cloud in HUMBOLDT, IOWA
From 29-MAY-19 17:23:00 to 29-MAY-19 17:23:00 (CST-6)
Location: RUTLAND
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported a funnel cloud.

Funnel Cloud in TAMA, IOWA
From 29-MAY-19 19:32:00 to 29-MAY-19 19:32:00 (CST-6)
Location: GARWIN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Local fired department reported a funnel cloud.

Funnel Cloud in HARDIN, IOWA
From 29-MAY-19 20:03:00 to 29-MAY-19 20:03:00 (CST-6)
Location: STEAMBOAT ROCK
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported a funnel cloud.

Funnel Cloud in FRANKLIN, IOWA
From 29-MAY-19 20:20:00 to 29-MAY-19 20:20:00 (CST-6)
Location: GENEVA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported a funnel cloud that persisted for one minute then lifted. The spotter could not confirm if it had made contact with the ground due to darkness.

Funnel Cloud in MADISON, IOWA
From 30-MAY-19 10:47:00 to 30-MAY-19 10:47:00 (CST-6)
Location: PITZER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported a funnel cloud a quarter of the way to the ground. This is a delayed report, time estimated.

Funnel Cloud in DALLAS, IOWA
From 30-MAY-19 10:53:00 to 30-MAY-19 10:53:00 (CST-6)
Location: DEXTER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported a funnel cloud. This is a delayed report, time estimated.

Tornado in HARDIN, IOWA
From 29-MAY-19 19:54:00 to 29-MAY-19 19:56:00 (CST-6)
Location: STEAMBOAT ROCK
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Weak tornado reported northeast of Steamboat Rock along with spotter video. Remained in open farmland.  Rated EF-Unknown as no damage indicators were impacted.

Funnel Cloud in SAC, IOWA
From 29-MAY-19 15:51:00 to 29-MAY-19 15:51:00 (CST-6)
Location: EARLY
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported a funnel cloud, via social media.

Funnel Cloud in HUMBOLDT, IOWA
From 29-MAY-19 17:29:00 to 29-MAY-19 17:29:00 (CST-6)
Location: BODE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported a funnel cloud that did not last long, but a wall cloud remained still rotating.

Funnel Cloud in MAHASKA, IOWA
From 29-MAY-19 17:29:00 to 29-MAY-19 17:29:00 (CST-6)
Location: BARNES CITY
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported a funnel cloud, via social media.