Widespread severe thunderstorms from the late morning through the evening hours June 20th, produced large hail, damaging winds, and heavy rains.  In addition 4 tornadoes occurred.  One tornado resulted in 2 injuries when a house was destroyed.  Another person was injured by a lightning strike.

Tornado in HENRY, IOWA
From 20-JUN-15 18:18:00 to 20-JUN-15 18:24:00 (CST-6)
Location: MT PLEASANT MUNI ARP
Tornado F-scale: EF1
Property damage: 100.00K
Crop damage: 10.00K
Reported by: NWS Storm Survey

An NWS Storm Survey found a tornado touched down 2.5 miles southeast of Mount Pleasant and remained on the ground for 3.45 miles before lifting 2.67 miles southwest of New London. The tornado was rated EF-1 with peak winds estimated at 105 MPH. The damage was primarily to farm outbuildings and trees. Two people were injured when a mobile home was rolled over by the tornado.

Hail in LINN, IOWA
From 20-JUN-15 10:20:00 to 20-JUN-15 10:20:00 (CST-6)
Location: MARION MC BRIDE ARPT
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in DES MOINES, IOWA
From 20-JUN-15 18:26:00 to 20-JUN-15 18:26:00 (CST-6)
Location: DANVILLE
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A large, 24 inch diameter limb snapped off a tree at mile marker 252 on Highway 34.

Thunderstorm Wind in LEE, IOWA
From 20-JUN-15 18:35:00 to 20-JUN-15 18:35:00 (CST-6)
Location: DENMARK
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A camping trailer was blown off of support jacks.

Hail in DUBUQUE, IOWA
From 20-JUN-15 13:35:00 to 20-JUN-15 13:35:00 (CST-6)
Location: HOLY CROSS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in DELAWARE, IOWA
From 20-JUN-15 16:12:00 to 20-JUN-15 16:12:00 (CST-6)
Location: HOPKINTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in LINN, IOWA
From 20-JUN-15 10:23:00 to 20-JUN-15 10:23:00 (CST-6)
Location: MARION MC BRIDE ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LINN, IOWA
From 20-JUN-15 10:23:00 to 20-JUN-15 10:23:00 (CST-6)
Location: MARION
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in HENRY, IOWA
From 20-JUN-15 18:17:00 to 20-JUN-15 18:17:00 (CST-6)
Location: MT PLEASANT
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several trees around 12 inches in diameter were snapped off.

Thunderstorm Wind in HENRY, IOWA
From 20-JUN-15 18:41:00 to 20-JUN-15 18:41:00 (CST-6)
Location: MT PLEASANT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter reports significant tree and road sign damage near mile marker 229 on Highway 34 west of Mt. Pleasant.

Tornado in LEE, IOWA
From 20-JUN-15 18:34:00 to 20-JUN-15 18:38:00 (CST-6)
Location: FT MADISON MUNI ARPT
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

NWS Storm Survey teams showed that this tornado produced damage to trees along its path, including snapping the trunks of hardwood trees.  The EF1, 100 mph wind-producing tornado was narrow.

Thunderstorm Wind in LEE, IOWA
From 20-JUN-15 18:14:00 to 20-JUN-15 18:14:00 (CST-6)
Location: MT HAMILL
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several trees were snapped at the base.  Tree limbs were down on IA 16.

Tornado in DES MOINES, IOWA
From 20-JUN-15 18:32:00 to 20-JUN-15 18:36:00 (CST-6)
Location: MIDDLETOWN
Tornado F-scale: EF1
Property damage: 300.00K
Crop damage: 0.00K
Reported by: Emergency Manager

An EF1 tornado touched down briefly on the northwest side of the Iowa Army Ammunition Plant and tracked southeast for about 3 miles.  Trees, roofs, outbuildings, power poles, and vehicles were damaged along the path.   The maximum wind was estimated at 95 mph.

Hail in BENTON, IOWA
From 20-JUN-15 16:33:00 to 20-JUN-15 16:33:00 (CST-6)
Location: BELLE PLAINE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SCOTT, IOWA
From 20-JUN-15 13:20:00 to 20-JUN-15 13:20:00 (CST-6)
Location: GAMBRILL
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in SCOTT, IOWA
From 20-JUN-15 13:18:00 to 20-JUN-15 13:18:00 (CST-6)
Location: SCOTT COUNTY PARK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LINN, IOWA
From 20-JUN-15 10:30:00 to 20-JUN-15 10:30:00 (CST-6)
Location: MARION
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in LINN, IOWA
From 20-JUN-15 10:25:00 to 20-JUN-15 10:35:00 (CST-6)
Location: SPRINGVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotters reported that it hailed for 10 minutes, between 1025 and 1035 am with quarter size hail.

Thunderstorm Wind in HENRY, IOWA
From 20-JUN-15 18:13:00 to 20-JUN-15 18:13:00 (CST-6)
Location: MT PLEASANT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A member of the public reported tree and road sign damage.

Thunderstorm Wind in VAN BUREN, IOWA
From 20-JUN-15 18:25:00 to 20-JUN-15 18:25:00 (CST-6)
Location: FARMINGTON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Tree was reported blown down, estimated wind by storm chaser at 60 mph.

Thunderstorm Wind in LEE, IOWA
From 20-JUN-15 18:45:00 to 20-JUN-15 18:45:00 (CST-6)
Location: FT MADISON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several 3 to 6 inch diameter tree limbs were reported down.

Thunderstorm Wind in DES MOINES, IOWA
From 20-JUN-15 19:02:00 to 20-JUN-15 19:02:00 (CST-6)
Location: MEDIAPOLIS
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Twelve inch diameter trees were blown down on north side of town, power was also reported out.

Thunderstorm Wind in DES MOINES, IOWA
From 20-JUN-15 18:38:00 to 20-JUN-15 18:38:00 (CST-6)
Location: LENOX PARK
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Very large trees reported down near 2200 block of Isabella,
and a dumpster was in the road near Sunnyside and
Roosevelt  streets.

Thunderstorm Wind in DES MOINES, IOWA
From 20-JUN-15 18:45:00 to 20-JUN-15 18:45:00 (CST-6)
Location: LENOX PARK
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter reported large trees uprooted and snapped off in town.

Thunderstorm Wind in JEFFERSON, IOWA
From 20-JUN-15 17:55:00 to 20-JUN-15 17:55:00 (CST-6)
Location: FAIRFIELD
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Thunderstorm Wind in JEFFERSON, IOWA
From 20-JUN-15 18:09:00 to 20-JUN-15 18:09:00 (CST-6)
Location: CAPPOCK
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter estimated a 60 mph wind gust.

Hail in LINN, IOWA
From 20-JUN-15 10:07:00 to 20-JUN-15 10:07:00 (CST-6)
Location: TODDVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in LEE, IOWA
From 20-JUN-15 18:32:00 to 20-JUN-15 18:32:00 (CST-6)
Location: DENMARK
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter reported numerous trees damaged, camper blown onto side, and a telephone pole down.

Lightning in JOHNSON, IOWA
From 20-JUN-15 18:20:00 to 20-JUN-15 18:20:00 (CST-6)
Location: HILLS
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Officials reported two power lines down and transformer on fire.

Hail in DUBUQUE, IOWA
From 20-JUN-15 13:52:00 to 20-JUN-15 13:52:00 (CST-6)
Location: SHERRILL
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in CLINTON, IOWA
From 20-JUN-15 12:45:00 to 20-JUN-15 12:45:00 (CST-6)
Location: TORONTO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

COOP observer reports damaged soybean crops between Toronto and Wheatland due to hail.

Thunderstorm Wind in BUCHANAN, IOWA
From 20-JUN-15 09:30:00 to 20-JUN-15 09:30:00 (CST-6)
Location: WINTHROP
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Tree branches between 6 and 10 inches in diameter were blown down.

Thunderstorm Wind in DES MOINES, IOWA
From 20-JUN-15 18:37:00 to 20-JUN-15 18:37:00 (CST-6)
Location: DODGEVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

An emergency manager reported estimated 62 mph winds.

Thunderstorm Wind in DES MOINES, IOWA
From 20-JUN-15 18:39:00 to 20-JUN-15 18:39:00 (CST-6)
Location: WEST BURLINGTON
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter reported winds estimated over 65 mph.

Thunderstorm Wind in DES MOINES, IOWA
From 20-JUN-15 18:51:00 to 20-JUN-15 18:51:00 (CST-6)
Location: WEST BURLINGTON
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter reported large trees down in road.

Hail in LINN, IOWA
From 20-JUN-15 10:15:00 to 20-JUN-15 10:18:00 (CST-6)
Location: PALO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CEDAR, IOWA
From 20-JUN-15 12:35:00 to 20-JUN-15 12:35:00 (CST-6)
Location: CLARENCE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CEDAR, IOWA
From 20-JUN-15 12:38:00 to 20-JUN-15 12:43:00 (CST-6)
Location: LOWDEN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hail in CLINTON, IOWA
From 20-JUN-15 12:52:00 to 20-JUN-15 12:52:00 (CST-6)
Location: CALAMUS
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CLINTON, IOWA
From 20-JUN-15 12:53:00 to 20-JUN-15 12:53:00 (CST-6)
Location: CALAMUS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in LINN, IOWA
From 20-JUN-15 10:18:00 to 20-JUN-15 10:18:00 (CST-6)
Location: ROBINS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Lightning in LINN, IOWA
From 20-JUN-15 16:34:00 to 20-JUN-15 16:34:00 (CST-6)
Location: PALO
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A 42 year old female was struck and killed by lightning while camping at the Pleasant Creek State Recreation Area near Palo.

Tornado in WASHINGTON, IOWA
From 20-JUN-15 18:01:00 to 20-JUN-15 18:08:00 (CST-6)
Location: NOBLE
Tornado F-scale: EF1
Property damage: 50.00K
Crop damage: 10.00K
Reported by: NWS Storm Survey

An NWS Storm Survey determined that a tornado touched down 1.8 miles northwest of Wayland and was on the ground for 1.38 miles before lifting 0.9 miles north of Wayland. The tornado caused damage primarily to farm outbuildings and trees along its path with a rating of EF-1 and peak winds estimated at 100 MPH.

Thunderstorm Wind in DES MOINES, IOWA
From 20-JUN-15 18:45:00 to 20-JUN-15 18:45:00 (CST-6)
Location: WEST BURLINGTON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter reported multiple 3 inch diameter limbs down.