A cold front moved into northwest Iowa during the afternoon.  The airmass was relatively unstable given a considerable amount of cloud debris was left over from the previous night.  Temperatures rose into the low to mid 80s, with dewpoint temperatures in the low 70s.  CAPE values increased to 1500 to 3000 J/kg, with lifted indices in the -4 to -6 C range.   There was weak convergence ahead of the cold front as a weak outflow boundary pushed southwest into the state.  Precipitable water values increased to between 1.7 and 1.9 inches.  The freezing level was quite high, around 14,500 feet with about 500 J/kg of CAPE available in the -10 to -30 C layer of the atmosphere.  Downdraft CAPE was also around 500 J/kg.  The atmosphere was weakly sheared with 20 to 30 kts of shear available during the early afternoon.  This increased to 25 to 35 kts as the storms moved through.   The LCL level was relatively low, around 750 meters.  A narrow line of thunderstorms formed along the outflow boundary in southern Minnesota and dropped south into Iowa.  A few of the storms intensified over Kossuth County and produced gusty winds and small hail.  A MARC signature developed along the leading edge of the storms as they began to bow out.  This produced high winds west of the Burt area.  Telephone poles were blown down and damage was done to a building.  The thunderstorms continued to move south along the instability axis.  Winds of 60 to 70 MPH caused tree damage east of Fort Dodge in Webster County.  At another nearby location, a hog confinement building was destroyed.  Trees and a windmill also were blown over by the high winds.  Strong winds continued as the system moved south.  Winds around 70 MPH flattened corn fields south of Fort Dodge toward the Boone area.

Hail in DALLAS, IOWA
From 05-JUL-11 18:03:00 to 05-JUL-11 18:03:00 (CST-6)
Location: BOUTON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 5.00K
Reported by: Emergency Manager

Wind gusting 35 to 40 MPH as well.

Thunderstorm Wind in WEBSTER, IOWA
From 05-JUL-11 16:20:00 to 05-JUL-11 16:20:00 (CST-6)
Location: FT DODGE
Magnitude: 57.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Large tree limbs down on the northeast side of Fort Dodge.

Thunderstorm Wind in KOSSUTH, IOWA
From 05-JUL-11 14:22:00 to 05-JUL-11 14:22:00 (CST-6)
Location: BURT
Magnitude: 69.00 EG
Property damage: 50.00K
Crop damage: 5.00K
Reported by: Broadcast Media

A listener reported telephone poles down, damage to a building, and possibly a trailer.  Relayed by KLGA radio.

Thunderstorm Wind in WEBSTER, IOWA
From 05-JUL-11 16:19:00 to 05-JUL-11 16:19:00 (CST-6)
Location: FT DODGE
Magnitude: 56.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tree limbs blown down by high winds.  Rainfall of 1.5 inches in 30 minutes.

Thunderstorm Wind in KOSSUTH, IOWA
From 05-JUL-11 15:07:00 to 05-JUL-11 15:07:00 (CST-6)
Location: BURT
Magnitude: 57.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: SHAVE Project

Power lines and trees down.

Thunderstorm Wind in BOONE, IOWA
From 05-JUL-11 17:15:00 to 05-JUL-11 17:15:00 (CST-6)
Location: BOXHOLM
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 50.00K
Reported by: Law Enforcement

Corn field flattened by wind gust.

Thunderstorm Wind in KOSSUTH, IOWA
From 05-JUL-11 15:12:00 to 05-JUL-11 15:12:00 (CST-6)
Location: BURT
Magnitude: 57.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Maple tree blown down in front yard with limbs broken in half.  Eight to ten inch diameter tree limbs down.  Power was knocked out.

Thunderstorm Wind in WEBSTER, IOWA
From 05-JUL-11 16:55:00 to 05-JUL-11 16:55:00 (CST-6)
Location: DAYTON
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 50.00K
Reported by: Public

Green snap observed in farm fields.

Thunderstorm Wind in DALLAS, IOWA
From 05-JUL-11 18:05:00 to 05-JUL-11 18:05:00 (CST-6)
Location: PERRY
Magnitude: 57.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Amateur Radio

One large 15 inch diameter tree limb blocking one lane of a highway.  Several smaller 4 inch diameter limbs down.

Hail in WEBSTER, IOWA
From 05-JUL-11 17:10:00 to 05-JUL-11 17:20:00 (CST-6)
Location: DAYTON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 5.00K
Reported by: SHAVE Project

Hail in KOSSUTH, IOWA
From 05-JUL-11 15:04:00 to 05-JUL-11 15:04:00 (CST-6)
Location: BURT
Magnitude: 1.00 
Property damage: 2.00K
Crop damage: 10.00K
Reported by: SHAVE Project

Thunderstorm Wind in KOSSUTH, IOWA
From 05-JUL-11 14:15:00 to 05-JUL-11 14:30:00 (CST-6)
Location: LONE ROCK
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: SHAVE Project

Some 2 to 3 inch diameter branches down.

Thunderstorm Wind in WEBSTER, IOWA
From 05-JUL-11 16:43:00 to 05-JUL-11 16:43:00 (CST-6)
Location: PALM GROVE
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 75.00K
Reported by: Trained Spotter

Large tree limbs and a half tree down at addresses 2128 to 2148 320th Street.  Corn was partially flattened.

Thunderstorm Wind in WEBSTER, IOWA
From 05-JUL-11 16:20:00 to 05-JUL-11 16:20:00 (CST-6)
Location: INDUSTRY
Magnitude: 61.00 EG
Property damage: 60.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hog building destroyed.  Trees and a windmill down.