A low pressure system moved into the state during the day, dragging behind it a cold front that helped trigger off storms across portions of central and southern Iowa. Hail, damaging winds and a tornado occurred with the storms. The tornado moved from Monroe County into Wapello County damaging multiple farmsteads, power poles and a house.

Funnel Cloud in WAPELLO, IOWA
From 20-JUN-15 17:10:00 to 20-JUN-15 17:10:00 (CST-6)
Location: EDDYVILLE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reports strong low level rotation and a brief funnel cloud approximately 2 miles southeast of Eddyville.

Thunderstorm Wind in WAPELLO, IOWA
From 20-JUN-15 17:10:00 to 20-JUN-15 17:10:00 (CST-6)
Location: DUDLEY
Magnitude: 80.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Media report of narrow swath of wind damage going from NW to SE from Monroe-Wapello Road to 140th street.  Multiple farm silos and outbuildings damaged or destroyed.  Large wooden power lines leaning or snapped.  Time radar estimated.

Thunderstorm Wind in WAPELLO, IOWA
From 20-JUN-15 17:15:00 to 20-JUN-15 17:15:00 (CST-6)
Location: CHILLICOTHE
Magnitude: 75.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement report of a roof off of a house and numerous trees down in town.

Thunderstorm Wind in WAPELLO, IOWA
From 20-JUN-15 17:28:00 to 20-JUN-15 17:28:00 (CST-6)
Location: AGENCY
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter report of tree branches down on a power line.  Report came via social media.

Thunderstorm Wind in WAPELLO, IOWA
From 20-JUN-15 17:30:00 to 20-JUN-15 17:30:00 (CST-6)
Location: OTTUMWA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported approximately 60 mph wind gusts entering Ottumwa.

Thunderstorm Wind in WAPELLO, IOWA
From 20-JUN-15 17:33:00 to 20-JUN-15 17:33:00 (CST-6)
Location: OTTUMWA
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet/RWIS measured 60 mph wind gust in Ottumwa within Railroad Park.

Thunderstorm Wind in DAVIS, IOWA
From 20-JUN-15 18:20:00 to 20-JUN-15 18:20:00 (CST-6)
Location: FLORIS
Magnitude: 61.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter report of estimated thunderstorm wind gust of 70 mph.  Also reported a large tree had fallen on a garage in town.

Thunderstorm Wind in WAPELLO, IOWA
From 20-JUN-15 17:40:00 to 20-JUN-15 17:40:00 (CST-6)
Location: ELDON
Magnitude: 65.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Public

Public report of trees down in town.

Thunderstorm Wind in WAPELLO, IOWA
From 20-JUN-15 17:42:00 to 20-JUN-15 17:42:00 (CST-6)
Location: BLADENSBURG
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public report of estimated 60 mph wind gust approximately 4 miles east of Agency.

Thunderstorm Wind in WAPELLO, IOWA
From 20-JUN-15 17:42:00 to 20-JUN-15 17:42:00 (CST-6)
Location: OTTUMWA
Magnitude: 60.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Public

Public/Chaser report of trees down and debris 2 miles E of Ottumwa.

Hail in WAPELLO, IOWA
From 20-JUN-15 17:38:00 to 20-JUN-15 17:38:00 (CST-6)
Location: OTTUMWA
Magnitude: 1.75 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Thunderstorm Wind in WAPELLO, IOWA
From 20-JUN-15 17:39:00 to 20-JUN-15 17:39:00 (CST-6)
Location: OTTUMWA
Magnitude: 65.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Chaser reported large trees down across roads just north of Ottumwa.

Hail in WAPELLO, IOWA
From 20-JUN-15 17:41:00 to 20-JUN-15 17:41:00 (CST-6)
Location: OTTUMWA
Magnitude: 1.25 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in DAVIS, IOWA
From 20-JUN-15 18:30:00 to 20-JUN-15 18:30:00 (CST-6)
Location: BLOOMFIELD
Magnitude: 75.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Social Media

Public report of trees and power lines down and traffic light bent within the city of Bloomfield.  Also observed pea to quarter sized hail.

Thunderstorm Wind in WAPELLO, IOWA
From 20-JUN-15 17:39:00 to 20-JUN-15 17:39:00 (CST-6)
Location: OTTUMWA
Magnitude: 70.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter estimated wind gusts of 80 mph with reports of large tree limbs down in town.

Tornado in MONROE, IOWA
From 20-JUN-15 17:09:00 to 20-JUN-15 17:10:00 (CST-6)
Location: AVERY
Tornado F-scale: EF1
Property damage: 5.00K
Crop damage: 1.00K
Reported by: NWS Storm Survey

Tornado started in far northeast Monroe county and moved southeast staying in rural areas but doing EF1 damage to a power line before exiting the county.  This tornado moved into Wapello county.

Tornado in WAPELLO, IOWA
From 20-JUN-15 17:10:00 to 20-JUN-15 17:14:00 (CST-6)
Location: DUDLEY
Tornado F-scale: EF1
Property damage: 75.00K
Crop damage: 10.00K
Reported by: NWS Storm Survey

This tornado moved from Monroe into Wapello county.  This is the Wapello county portion.  The circulation for this short-lived tornado originated on the northern flank of a small squall line bow segment. This circulation rapidly tightened south of Eddyville and broke off the line, where it became tornadic. Damage included multiple farmsteads that lost silos and outbuildings, bent power lines, snapped trees, and a house that lost its roof and east wall. Downburst damage also occurred upstream and downstream of the tornado track.

Hail in MARION, IOWA
From 20-JUN-15 15:48:00 to 20-JUN-15 15:48:00 (CST-6)
Location: PELLA
Magnitude: 1.75 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Hail in MARION, IOWA
From 20-JUN-15 16:20:00 to 20-JUN-15 16:20:00 (CST-6)
Location: HARVEY
Magnitude: 3.00 
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter report of 3 to 3.5 inch hail as storm passed over his home around 5pm.

Hail in MARION, IOWA
From 20-JUN-15 16:26:00 to 20-JUN-15 16:26:00 (CST-6)
Location: HARVEY
Magnitude: 4.00 
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Public

Public report of measured hailstones around 4 inches in diameter.  Photos were on twitter and the KCCI ulocal page.  Time radar estimated.

Funnel Cloud in MARION, IOWA
From 20-JUN-15 16:30:00 to 20-JUN-15 16:30:00 (CST-6)
Location: BUSSEY
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter noted a funnel cloud with no contact to the ground and was dissipating at the time of the report.

Hail in MARION, IOWA
From 20-JUN-15 16:25:00 to 20-JUN-15 16:25:00 (CST-6)
Location: PELLA
Magnitude: 2.50 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Social Media

Tennis ball size was estimated via the photos on social media.

Hail in MAHASKA, IOWA
From 20-JUN-15 16:50:00 to 20-JUN-15 16:50:00 (CST-6)
Location: OSKALOOSA
Magnitude: 2.00 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Public report of hail around 2 inches in diameter in Oskaloosa.  Photos from KCCI ulocal page.

Hail in MAHASKA, IOWA
From 20-JUN-15 16:55:00 to 20-JUN-15 16:55:00 (CST-6)
Location: UNIVERSITY PARK
Magnitude: 1.75 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Public report of golf ball sized hail with photos taken from the KCCI ulocal page.