A very dynamic weather pattern was in place over over Iowa.  A warm front lifted north into the state.  Temperatures warmed in the 80s with dew point readings in the upper 60s to mid 70s.  The atmosphere became very unstable with 3000 to 4000 J/kg of CAPE and downdraft CAPE of 1000 to 1500 J/kg.  The shear was strong with 50 to 60 kts available.  The freezing level was quite high, between 13,000 and 14,000 feet wtih CAPE in the -10 to -30 C layer of the atmosphere between 700 and 900 J/kg.  The precipitable water value was a between 1.5 and 1.8 inches.  The LCL was relatively low, around 1000 meters.  Thunderstorms moved into western Iowa out of Nebraska. As the afternoon and evening progressed, the thunderstorm complex evolved into one that was more outflow dominated.  The system raced southeast and produced high winds across the Des Moines metro area and to the east and south.  Winds of 60 to 80 MPH caused considerable tree and power line damage.  Power outages were reported by 27,000 customers in Des Moines at the height of the storm.  As the storms moved through the heart of Des Moines, a homeless individual died when a large tree branch fell on him at a homeless settlement along the banks of the Raccoon River east of Fluer Blvd.

Thunderstorm Wind in BUTLER, IOWA
From 16-JUN-14 18:27:00 to 16-JUN-14 18:37:00 (CST-6)
Location: AREDALE
Magnitude: 70.00 EG
Property damage: 80.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Two empty grain bins ripped from foundation and thrown 75 yards to the SE. Swath of area 4 miles south and several miles east of this point also had tree limb damage.

Thunderstorm Wind in BUTLER, IOWA
From 16-JUN-14 18:44:00 to 16-JUN-14 18:48:00 (CST-6)
Location: CLARKSVILLE
Magnitude: 70.00 EG
Property damage: 70.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Swath of RFD winds south of the two tornadoes. Large tree snapped on farmstead. Empty grain bin rolled 75 yards to the ENE. Many tree limbs downed for a mile north and several miles E and W of this point.

Thunderstorm Wind in BUTLER, IOWA
From 16-JUN-14 18:56:00 to 16-JUN-14 18:58:00 (CST-6)
Location: SHELL ROCK
Magnitude: 70.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Area of wind damage downstream of the dissipating tornado east of Clarksville. Limb damage to over a dozen trees and an outbuilding with a west facing entrance was pulled from the ground.

Thunderstorm Wind in WRIGHT, IOWA
From 16-JUN-14 17:51:00 to 16-JUN-14 17:53:00 (CST-6)
Location: PALSVILLE
Magnitude: 65.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Swath of wind damage in far eastern Wright County in which a tornado was embedded. Damaged trees and a grain bin.

Thunderstorm Wind in FRANKLIN, IOWA
From 16-JUN-14 17:53:00 to 16-JUN-14 17:58:00 (CST-6)
Location: ALEXANDER
Magnitude: 91.00 EG
Property damage: 400.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Swath of wind damage that began in far NE Wright County broadened and strengthened as it entered NW Franklin County. An EF1 tornado was embedded within this wind damage. Wind gusts of 70-80 mph were found in a 1 to 2 mile wide and 4 to 5 mile long corridor, with locally higher gusts over 100 mph. One house lost half of its roof and multiple outbuildings were destroyed. One hog confinement building disintegrated--its remnants scattered for over 2 miles to the south. Damage point is at the house that lost its roof. Hog building was 1.5 miles SE of this point.

Thunderstorm Wind in WRIGHT, IOWA
From 16-JUN-14 17:21:00 to 16-JUN-14 17:28:00 (CST-6)
Location: EAGLE GROVE
Magnitude: 60.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Multiple locations in SW Wright County sustained light to moderate tree damage. Light roof damage to several farm houses.

Thunderstorm Wind in PALO ALTO, IOWA
From 16-JUN-14 16:35:00 to 16-JUN-14 16:40:00 (CST-6)
Location: AYRSHIRE
Magnitude: 56.00 EG
Reported by: Emergency Manager

Barn damage reported by the EM.

Thunderstorm Wind in HANCOCK, IOWA
From 16-JUN-14 17:30:00 to 16-JUN-14 17:30:00 (CST-6)
Location: MILLER
Magnitude: 61.00 EG
Property damage: 70.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Outbuilding heavily damaged. Debris strewn into a field to the ENE.

Thunderstorm Wind in BREMER, IOWA
From 16-JUN-14 19:25:00 to 16-JUN-14 19:27:00 (CST-6)
Location: BUCK CREEK
Magnitude: 83.00 EG
Property damage: 200.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Narrow but strong area of wind damage in east central Bremer County. Worst damage was on a farmstead (point used for this event). A barn was flattened, multiple trees were snapped, and several empty grain bins were thrown into the trees.

Thunderstorm Wind in TAMA, IOWA
From 16-JUN-14 20:20:00 to 16-JUN-14 20:20:00 (CST-6)
Location: DYSART
Magnitude: 52.00 EG
Reported by: Trained Spotter

Winds gust estimated at 60 MPH. Emergency manager reported tree damage on several farmsteads in this general area as well.

Tornado in BREMER, IOWA
From 16-JUN-14 19:12:00 to 16-JUN-14 19:16:00 (CST-6)
Location: TRIPOLI
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 4.00K
Reported by: Public

Public picture of tornado west of Tripoli that remained in open agricultural fields for the duration of its path.

Hail in HUMBOLDT, IOWA
From 16-JUN-14 16:53:00 to 16-JUN-14 16:53:00 (CST-6)
Location: BRADGATE
Magnitude: 1.00 
Reported by: Trained Spotter

Thunderstorm Wind in POCAHONTAS, IOWA
From 16-JUN-14 18:35:00 to 16-JUN-14 18:35:00 (CST-6)
Location: ROLFE
Magnitude: 52.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several 3 to 4 inch diameter tree limbs down, some over 6 inches.

Thunderstorm Wind in HAMILTON, IOWA
From 16-JUN-14 17:48:00 to 16-JUN-14 17:48:00 (CST-6)
Location: WILLIAMS
Magnitude: 57.00 MG
Reported by: Mesonet

Thunderstorm Wind in POLK, IOWA
From 17-JUN-14 00:09:00 to 17-JUN-14 00:09:00 (CST-6)
Location: POLK CITY
Magnitude: 58.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Measured on the Saylorville bridge.

Thunderstorm Wind in LUCAS, IOWA
From 17-JUN-14 01:15:00 to 17-JUN-14 01:15:00 (CST-6)
Location: CHARITON MUNI ARPT
Magnitude: 57.00 MG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: AWOS

Thunderstorm Wind in POWESHIEK, IOWA
From 17-JUN-14 01:16:00 to 17-JUN-14 01:16:00 (CST-6)
Location: BROOKLYN
Magnitude: 52.00 MG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Mesonet

Hail in EMMET, IOWA
From 16-JUN-14 16:10:00 to 16-JUN-14 16:10:00 (CST-6)
Location: DOLLIVER
Magnitude: 0.88 
Reported by: Emergency Manager

Thunderstorm Wind in HARDIN, IOWA
From 16-JUN-14 19:15:00 to 16-JUN-14 19:15:00 (CST-6)
Location: HUBBARD
Magnitude: 53.00 MG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: NWS Employee

Small branches damaged and a few larger ones to 9 inches in diameter.

Thunderstorm Wind in CERRO GORDO, IOWA
From 16-JUN-14 18:44:00 to 16-JUN-14 18:44:00 (CST-6)
Location: (MCW)MASON CITY MUNI
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Thunderstorm Wind in BUTLER, IOWA
From 16-JUN-14 18:51:00 to 16-JUN-14 18:51:00 (CST-6)
Location: PARKERSBURG
Magnitude: 55.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: COOP Observer

Several large tree limbs down throughout Parkersburg.

Thunderstorm Wind in MARION, IOWA
From 17-JUN-14 01:00:00 to 17-JUN-14 01:00:00 (CST-6)
Location: RED ROCK
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Measured on the Red Rock bridge.

Thunderstorm Wind in POLK, IOWA
From 17-JUN-14 00:14:00 to 17-JUN-14 00:14:00 (CST-6)
Location: POLK CITY
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Social Media

Wind gust estimated at 65 MPH.

Thunderstorm Wind in POLK, IOWA
From 17-JUN-14 00:20:00 to 17-JUN-14 00:20:00 (CST-6)
Location: ALTOONA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Estimated gust.

Thunderstorm Wind in POLK, IOWA
From 17-JUN-14 00:23:00 to 17-JUN-14 00:23:00 (CST-6)
Location: DES MOINES
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winds estimated at 60 MPH.

Thunderstorm Wind in BUTLER, IOWA
From 16-JUN-14 18:48:00 to 16-JUN-14 18:54:00 (CST-6)
Location: CLARKSVILLE
Magnitude: 70.00 EG
Property damage: 250.00K
Reported by: NWS Storm Survey

Numerous trees and power lines down throughout town. Worst trees damage was on the southern and western side of town. Most trees in this region sustained limb damage or were snapped. Winds lasted six minutes based on spotter account. The falling trees damaged several houses, buildings, and power lines.

Thunderstorm Wind in POLK, IOWA
From 17-JUN-14 00:18:00 to 17-JUN-14 00:18:00 (CST-6)
Location: CLOVER HILLS
Magnitude: 56.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: NWS Employee

Winds gusts estimated to 65 MPH with small branches down.

Thunderstorm Wind in DALLAS, IOWA
From 16-JUN-14 23:57:00 to 16-JUN-14 23:57:00 (CST-6)
Location: DALLAS CENTER
Magnitude: 56.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Ten to twelve inch diameter trees down and two power poles.

Thunderstorm Wind in BLACK HAWK, IOWA
From 16-JUN-14 19:18:00 to 16-JUN-14 19:21:00 (CST-6)
Location: (ALO)WATERLOO MUNI A
Magnitude: 60.00 MG
Reported by: ASOS

Sustained winds of 60 MPH for three minutes.

Thunderstorm Wind in POLK, IOWA
From 17-JUN-14 00:19:00 to 17-JUN-14 00:19:00 (CST-6)
Location: ANKENY
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gust estimated 60 to 70 MPH.

Thunderstorm Wind in JASPER, IOWA
From 17-JUN-14 00:51:00 to 17-JUN-14 00:51:00 (CST-6)
Location: MONROE
Magnitude: 54.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winds gust estimated 58 to 65 MPH with several tree limbs down.  Moved heavy patio furniture 3 to 5 feet.

Thunderstorm Wind in EMMET, IOWA
From 16-JUN-14 16:10:00 to 16-JUN-14 16:41:00 (CST-6)
Location: ESTHERVILLE ARPT
Magnitude: 69.00 MG
Reported by: ASOS

A 69 kt peak wind gust was recorded at 2213Z, with winds sustained or gusting above severe levels (52 kts) from 2210 to 2241Z.

Thunderstorm Wind in BOONE, IOWA
From 16-JUN-14 22:31:00 to 16-JUN-14 22:32:00 (CST-6)
Location: BOONE MUNI ARPT
Magnitude: 55.00 MG
Reported by: AWOS

AWOS reports in 20 minute intervals. Report of wind was in the 0435Z ob. Radar used to estimate actual time of wind gust.

Thunderstorm Wind in POLK, IOWA
From 17-JUN-14 00:24:00 to 17-JUN-14 00:24:00 (CST-6)
Location: ALTOONA
Magnitude: 55.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

One and one half foot diameter tree downed.

Thunderstorm Wind in POLK, IOWA
From 17-JUN-14 00:14:00 to 17-JUN-14 00:14:00 (CST-6)
Location: JOHNSTON
Magnitude: 56.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Estimaged 65 MPH winds broke 6 inch diameter branches.

Hail in HUMBOLDT, IOWA
From 16-JUN-14 17:04:00 to 16-JUN-14 17:04:00 (CST-6)
Location: DAKOTA CITY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in CERRO GORDO, IOWA
From 16-JUN-14 17:53:00 to 16-JUN-14 17:53:00 (CST-6)
Location: CLEAR LAKE
Magnitude: 52.00 EG
Reported by: Social Media

Three to four inch tree limbs down.

Thunderstorm Wind in POLK, IOWA
From 17-JUN-14 00:31:00 to 17-JUN-14 00:31:00 (CST-6)
Location: YOUNGSTOWN
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Eight inch diameter tree limbs down.

Thunderstorm Wind in CRAWFORD, IOWA
From 16-JUN-14 23:07:00 to 16-JUN-14 23:07:00 (CST-6)
Location: BUCK GROVE
Magnitude: 51.00 MG
Reported by: Mesonet

Measured by an RWIS site.

Thunderstorm Wind in POLK, IOWA
From 17-JUN-14 00:20:00 to 17-JUN-14 00:20:00 (CST-6)
Location: WINDSOR HGTS
Magnitude: 61.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: NWS Employee

Estimated 70 MPH winds downed large branches and some whole trees.

Thunderstorm Wind in CERRO GORDO, IOWA
From 16-JUN-14 17:57:00 to 16-JUN-14 17:57:00 (CST-6)
Location: FREEMAN
Magnitude: 65.00 EG
Reported by: Trained Spotter

Wind damage to farm outbuildings.  Roof damage to homes and power lines down along 320th St north of Mason City.

Thunderstorm Wind in POLK, IOWA
From 17-JUN-14 00:26:00 to 17-JUN-14 00:26:00 (CST-6)
Location: DES MOINES
Magnitude: 56.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Eight inch tree limbs snapped.  Several tree limbs larger than two inches broken.

Hail in HUMBOLDT, IOWA
From 16-JUN-14 17:04:00 to 16-JUN-14 17:04:00 (CST-6)
Location: DAKOTA CITY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in HUMBOLDT, IOWA
From 16-JUN-14 17:04:00 to 16-JUN-14 17:04:00 (CST-6)
Location: RUTLAND
Magnitude: 1.75 
Reported by: Trained Spotter

Thunderstorm Wind in POLK, IOWA
From 17-JUN-14 00:19:00 to 17-JUN-14 00:19:00 (CST-6)
Location: WINDSOR HGTS
Magnitude: 64.00 MG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Public

Measured 74 MPH and dime size hail at Waveland golf course.

Thunderstorm Wind in JASPER, IOWA
From 17-JUN-14 00:42:00 to 17-JUN-14 00:42:00 (CST-6)
Location: PRAIRIE CITY
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Several tree branches 6 inches in diameter down.  Two food diameter tree downed.

Thunderstorm Wind in MAHASKA, IOWA
From 17-JUN-14 01:22:00 to 17-JUN-14 01:22:00 (CST-6)
Location: OSKALOOSA
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A large tree about 8 inches in diameter was snapped.

Thunderstorm Wind in HANCOCK, IOWA
From 16-JUN-14 17:36:00 to 16-JUN-14 17:36:00 (CST-6)
Location: MILLER
Magnitude: 65.00 EG
Property damage: 150.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Machine shed completely destroyed.   Damage to power lines and trees.

Thunderstorm Wind in HANCOCK, IOWA
From 16-JUN-14 17:35:00 to 16-JUN-14 17:35:00 (CST-6)
Location: MILLER
Magnitude: 60.00 EG
Reported by: Emergency Manager

Several large tree limbs down near 280th and Sioux Ave (no Sioux Ave found in maps, maybe meant Sage Ave).  Structural damage to a large machine shed.

Hail in PALO ALTO, IOWA
From 16-JUN-14 16:50:00 to 16-JUN-14 16:50:00 (CST-6)
Location: GRAETTINGER
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in HUMBOLDT, IOWA
From 16-JUN-14 17:00:00 to 16-JUN-14 17:00:00 (CST-6)
Location: UNIQUE
Magnitude: 1.75 
Reported by: Trained Spotter

Thunderstorm Wind in BUTLER, IOWA
From 16-JUN-14 18:40:00 to 16-JUN-14 18:40:00 (CST-6)
Location: WILMAR
Magnitude: 56.00 EG
Reported by: Emergency Manager

Wind gust estimate of 65 MPH.

Thunderstorm Wind in POLK, IOWA
From 17-JUN-14 00:21:00 to 17-JUN-14 00:21:00 (CST-6)
Location: URBANDALE
Magnitude: 54.00 MG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in EMMET, IOWA
From 16-JUN-14 15:45:00 to 16-JUN-14 15:45:00 (CST-6)
Location: WELLINGFORD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Hail in EMMET, IOWA
From 16-JUN-14 16:00:00 to 16-JUN-14 16:00:00 (CST-6)
Location: ESTHERVILLE
Magnitude: 1.75 
Reported by: Trained Spotter

Thunderstorm Wind in POLK, IOWA
From 17-JUN-14 00:20:00 to 17-JUN-14 00:20:00 (CST-6)
Location: DES MOINES
Magnitude: 56.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds blew down a large tree branch.  A homeless individual died when a the branch fell on him at a homeless settlement along the banks of the Raccoon River east of Fluer Blvd.

Tornado in POCAHONTAS, IOWA
From 16-JUN-14 16:44:00 to 16-JUN-14 16:49:00 (CST-6)
Location: PLOVER
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 5.00K
Reported by: Trained Spotter

Tornado developed northeast of Plover and moved across rural areas of northern Pocahontas county with no damage.  Tornado continued into Palo Alto county.

Thunderstorm Wind in WRIGHT, IOWA
From 16-JUN-14 18:35:00 to 16-JUN-14 18:35:00 (CST-6)
Location: EAGLE GROVE
Magnitude: 54.00 EG
Reported by: Trained Spotter

Several tree limbs down, mostly 4 inches in diameter with a few larger.

Thunderstorm Wind in WINNEBAGO, IOWA
From 16-JUN-14 17:02:00 to 16-JUN-14 17:02:00 (CST-6)
Location: BUFFALO CENTER
Magnitude: 58.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several large tree limbs down with power lines down.

Thunderstorm Wind in POLK, IOWA
From 17-JUN-14 00:21:00 to 17-JUN-14 00:21:00 (CST-6)
Location: SWANWOOD
Magnitude: 57.00 MG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: AWOS

Thunderstorm Wind in BUTLER, IOWA
From 16-JUN-14 18:40:00 to 16-JUN-14 18:40:00 (CST-6)
Location: GREENE
Magnitude: 65.00 EG
Reported by: Emergency Manager

Wind gusts estimated of 75 MPH.

Tornado in PALO ALTO, IOWA
From 16-JUN-14 16:49:00 to 16-JUN-14 16:55:00 (CST-6)
Location: MALLARD
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 5.00K
Reported by: Trained Spotter

This tornado entered from Pocahontas county.  It continued to the northeast in rural areas of southern Palo Alto with only crop damage.

Thunderstorm Wind in KOSSUTH, IOWA
From 16-JUN-14 17:03:00 to 16-JUN-14 17:03:00 (CST-6)
Location: ALGONA MUNI ARPT
Magnitude: 54.00 MG
Reported by: AWOS

AWOS report of 54 kts came in at 2315Z. Since the AWOS reports only once every 20 minutes, the time of the actual gust was estimated from radar.

Thunderstorm Wind in BLACK HAWK, IOWA
From 16-JUN-14 19:28:00 to 16-JUN-14 19:28:00 (CST-6)
Location: DEWAR
Magnitude: 59.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winds gust estimated at 65 to 70 MPH with several tree limbs down.

Thunderstorm Wind in EMMET, IOWA
From 16-JUN-14 15:57:00 to 16-JUN-14 15:57:00 (CST-6)
Location: ESTHERVILLE
Magnitude: 61.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tree branches of 6 to 8 inches in diameter were blown down.

Tornado in CERRO GORDO, IOWA
From 16-JUN-14 17:48:00 to 16-JUN-14 17:53:00 (CST-6)
Location: (MCW)MASON CITY MUNI
Tornado F-scale: EF1
Property damage: 50.00K
Crop damage: 9.00K
Reported by: Emergency Manager

Tornado is evident in high resolution satellite imagery early in track when crossing open agricultural fields.  Most property damage occurred toward the end of the track.

Hail in POCAHONTAS, IOWA
From 16-JUN-14 16:49:00 to 16-JUN-14 16:49:00 (CST-6)
Location: ROLFE
Magnitude: 1.00 
Reported by: Trained Spotter

Thunderstorm Wind in POLK, IOWA
From 17-JUN-14 00:19:00 to 17-JUN-14 00:19:00 (CST-6)
Location: ANKENY
Magnitude: 51.00 MG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Social Media

Thunderstorm Wind in POLK, IOWA
From 17-JUN-14 00:20:00 to 17-JUN-14 00:20:00 (CST-6)
Location: MITCHELLVILLE
Magnitude: 57.00 MG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in WINNEBAGO, IOWA
From 16-JUN-14 16:55:00 to 16-JUN-14 16:55:00 (CST-6)
Location: RAKE
Magnitude: 60.00 EG
Reported by: Emergency Manager

Large limbs down along with power lines in Rake.

Thunderstorm Wind in WINNEBAGO, IOWA
From 16-JUN-14 17:28:00 to 16-JUN-14 17:28:00 (CST-6)
Location: FOREST CITY
Magnitude: 60.00 EG
Reported by: Emergency Manager

Several power lines down and tree limbs down throughout town.

Hail in HUMBOLDT, IOWA
From 16-JUN-14 17:08:00 to 16-JUN-14 17:08:00 (CST-6)
Location: ARNOLD
Magnitude: 3.50 
Reported by: Trained Spotter

Thunderstorm Wind in KOSSUTH, IOWA
From 16-JUN-14 17:05:00 to 16-JUN-14 17:05:00 (CST-6)
Location: ALGONA
Magnitude: 56.00 EG
Reported by: Public

Four to five inch diameter tree branches down.  Dime size hail and 2 inches of ponding water on road.

Thunderstorm Wind in GRUNDY, IOWA
From 16-JUN-14 19:39:00 to 16-JUN-14 19:39:00 (CST-6)
Location: BEAMAN
Magnitude: 52.00 EG
Reported by: Trained Spotter

Wind gust estimated at 60 MPH.

Thunderstorm Wind in POLK, IOWA
From 17-JUN-14 00:04:00 to 17-JUN-14 00:04:00 (CST-6)
Location: DODGE FLD ARPT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Wind gust estimate of 60 MPH.

Tornado in WRIGHT, IOWA
From 16-JUN-14 17:52:00 to 16-JUN-14 17:53:00 (CST-6)
Location: PALSVILLE
Tornado F-scale: EF0
Property damage: 2.00K
Crop damage: 1.00K
Reported by: Emergency Manager

Tornado spun up within a larger wind damage field in far eastern Wright county producing tree damage at a farmstead before moving into Franklin county.

Tornado in FRANKLIN, IOWA
From 16-JUN-14 17:53:00 to 16-JUN-14 17:56:00 (CST-6)
Location: ALEXANDER
Tornado F-scale: EF1
Property damage: 25.00K
Crop damage: 2.00K
Reported by: Emergency Manager

This tornado moved in from Wright county and produce its most intense damage as it entered the county when it hit a farmstead.  It then continued to the southeast remaining mostly in open farm fields.

Thunderstorm Wind in WINNEBAGO, IOWA
From 16-JUN-14 17:33:00 to 16-JUN-14 17:33:00 (CST-6)
Location: LELAND
Magnitude: 58.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several power lines and trees down throughout town.  Leland without electricity.

Thunderstorm Wind in WINNEBAGO, IOWA
From 16-JUN-14 17:32:00 to 16-JUN-14 17:32:00 (CST-6)
Location: LAKE MILLS
Magnitude: 58.00 EG
Reported by: Emergency Manager

Several trees and power lines down throughout town.

Tornado in CERRO GORDO, IOWA
From 16-JUN-14 17:56:00 to 16-JUN-14 17:57:00 (CST-6)
Location: FREEMAN
Tornado F-scale: EF0
Property damage: 5.00K
Crop damage: 2.00K
Reported by: Emergency Manager

This tornado developed in a larger wind damage field and produced extensive tree damage done to house on west side of Highway 65.  High resolution satellite imagery also had convergent area of crop residue in agricultural field east of the damage.

Flash Flood in FRANKLIN, IOWA
From 16-JUN-14 18:55:00 to 16-JUN-14 22:00:00 (CST-6)
Location: HAMPTON
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

At least 6 inches of water flowing cross portions of highway 3 in the Hampton area.  flooding of farm fields approaching roads and highways.

Tornado in BUTLER, IOWA
From 16-JUN-14 18:39:00 to 16-JUN-14 18:46:00 (CST-6)
Location: ALLISON MUNI ARPT
Tornado F-scale: EF1
Property damage: 200.00K
Crop damage: 5.00K
Reported by: NWS Storm Survey

This is the first of three tornadoes that formed around the Clarksville area. This narrow tornado formed north of Allison and tracked just south of due east, hitting several farmsteads and causing primarily tree damage. The tornado strengthened to an EF1 as it passed over a farmstead towards the end of its track, completely destroying a barn and heavily damaging a shelter belt. The tornado dissipated shortly thereafter as the second tornado passed just to the south.

Flash Flood in WEBSTER, IOWA
From 16-JUN-14 19:42:00 to 16-JUN-14 22:00:00 (CST-6)
Location: CLAY WORKS
Flood cause: Heavy Rain
Property damage: 60.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported several cars stalled throughout town as water was 2 to 3 feet deep in places.

Thunderstorm Wind in FRANKLIN, IOWA
From 16-JUN-14 18:40:00 to 16-JUN-14 18:41:00 (CST-6)
Location: HAMPTON
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous branches down.

Thunderstorm Wind in FRANKLIN, IOWA
From 16-JUN-14 18:25:00 to 16-JUN-14 18:25:00 (CST-6)
Location: GENEVA
Magnitude: 70.00 EG
Property damage: 225.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Large tree limbs down throughout the city. Empty grain bin on the east side of the town blown down.

Heavy Rain in FRANKLIN, IOWA
From 16-JUN-14 19:00:00 to 16-JUN-14 19:00:00 (CST-6)
Location: HAMPTON
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Rainfall 2.95 inches so far.

Tornado in BUTLER, IOWA
From 16-JUN-14 18:45:00 to 16-JUN-14 18:48:00 (CST-6)
Location: ALLISON MUNI ARPT
Tornado F-scale: EF0
Property damage: 400.00K
Crop damage: 1.00K
Reported by: NWS Storm Survey

This second tornado near Clarksville formed just south of tornado #1 as it was in the latter stages of its life. It heavily damaged multiple shelter belts and destroyed several outbuildings on a farmstead before dissipating. It caused EF1 damage to both the shelter belts and the farmstead.

Tornado in BUTLER, IOWA
From 16-JUN-14 18:52:00 to 16-JUN-14 18:55:00 (CST-6)
Location: CLARKSVILLE
Tornado F-scale: EF1
Property damage: 200.00K
Crop damage: 2.00K
Reported by: NWS Storm Survey

This short-lived tornado formed east of Clarksville and caused damage to multiple shelter belts. It strengthened to an EF1 as it passed over a house and removed part of its roof. The tornado damaged another house a mile further east before dissipating shortly thereafter.

Heavy Rain in BUTLER, IOWA
From 16-JUN-14 18:00:00 to 16-JUN-14 21:27:00 (CST-6)
Location: PARKERSBURG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Rainfall of 3.98 inches since 7:00pm CDT (6:00pm CST).

Thunderstorm Wind in BLACK HAWK, IOWA
From 16-JUN-14 19:22:00 to 16-JUN-14 19:22:00 (CST-6)
Location: (ALO)WATERLOO MUNI A
Magnitude: 56.00 EG
Reported by: Social Media

Downed trees blocking roads.

Tornado in HUMBOLDT, IOWA
From 16-JUN-14 17:22:00 to 16-JUN-14 17:30:00 (CST-6)
Location: ARNOLD
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 10.00K
Reported by: Storm Chaser

Tornado developed just east of the East Fork of the Des Moines river and moved eastward with time.   Little damage occurred.