A nearly stationary frontal boundary was in place across Iowa.  It extended from the southwest corner of the state, northeast to near Des Moines and Davenoprt.  There was a sharp contrast across the boundary with temperatures in the 50s north of the front and upper 70s to low 80s south of the front.  Dew points climbed into the mid to upper 60s.  Most unstable CAPES were in the 2000 to 4000 J/kg range with lifted indices of -4 to -9 C.  Downdraft CAPE was in the 800-1000 J/kg range with an effective shear of 50 to 65 kts.  The LCL was relatively low at 750 to 1000 meters.  Significant CAPE was available in the -10 to -30 C. layer of the atmosphere and was between 400 and 900 J/kg.  Plenty of moisture was available with precipitable water values of 1.4 to 1.6 inches.  Thunderstorms fired up during the late afternoon.  The main event was a small cluster of supercells.  When the first cell formed, a tornado touched down briefly in Cass County west of Anita.  It was a landspout and was only on the ground briefly.  Damage from a weak EF0 tornado took place through corn fields near the intersection of R Ave and 278th St in Dallas County.  The weak path continued for about 1.5 miles east with the most intense damage along 270th St.  A 30 yard convergent path of severe tree damage was observed through a residence there.  The tornado lifted shortly after that.  Fallen trees damaged a garage and vehicles at this residence.  The mesocyclone weakened after this.  As the storms progressed east it left a path of high winds and hail along its path.  The storm hit the northwest side of the metropolitan Des Moines area and produced tornadoes in Dallas and Polk Counties.  The storm produced winds of 60 to 80 MPH and produced considerable tree and power line damage.  A semi-tractor trailer truck was blown off of U.S. Highway 30 in Tama County.  Storms continued to fire into the night.  A round of thunderstorms moved across southeast Iowa and produced golf ball size hail in Davis County in the Bloomfield area.  High winds in the Bloomfield area damaged several businesses, knocking out windows.  A partial roof collapse was reported at an area school.  The combination of wind and hail broke out all of the windows on the west side of buildings in the downtown business district.

Tornado in CASS, IOWA
From 07-JUN-09 16:17:00 to 07-JUN-09 16:17:00 (CST-6)
Location: ANITA MUNI ARPT
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A brief landspout touchdown with no damage.

Thunderstorm Wind in POLK, IOWA
From 07-JUN-09 17:50:00 to 07-JUN-09 17:50:00 (CST-6)
Location: RIDER
Magnitude: 57.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A 2 foot diameter tree was blown down onto a house.

Hail in RINGGOLD, IOWA
From 07-JUN-09 23:12:00 to 07-JUN-09 23:12:00 (CST-6)
Location: MT AYR MUNI ARPT
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 5.00K
Reported by: Public

Tornado in DALLAS, IOWA
From 07-JUN-09 17:33:00 to 07-JUN-09 17:37:00 (CST-6)
Location: ORTONVILLE
Tornado F-scale: EF0
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tornado was reported as rain wrapped by spotter.

Thunderstorm Wind in DAVIS, IOWA
From 07-JUN-09 21:15:00 to 07-JUN-09 21:15:00 (CST-6)
Location: BLOOMFIELD
Magnitude: 61.00 EG
Property damage: 1.00M
Crop damage: 0.00K
Reported by: Broadcast Media

KMEM Radio reported that the Davis County Courthouse and several businesses had shattered windows and a local high school had a partial roof collapse.  Damage was caused by combination of wind and hail.

Thunderstorm Wind in CASS, IOWA
From 07-JUN-09 16:12:00 to 07-JUN-09 16:12:00 (CST-6)
Location: ANITA
Magnitude: 61.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Newspaper

Hail in GUTHRIE, IOWA
From 07-JUN-09 17:00:00 to 07-JUN-09 17:00:00 (CST-6)
Location: GUTHRIE CENTER
Magnitude: 1.00 
Property damage: 1.00K
Crop damage: 5.00K
Reported by: Amateur Radio

Hail in GUTHRIE, IOWA
From 07-JUN-09 17:01:00 to 07-JUN-09 17:01:00 (CST-6)
Location: MONTEITH
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 5.00K
Reported by: Trained Spotter

Hail in DALLAS, IOWA
From 07-JUN-09 17:34:00 to 07-JUN-09 17:34:00 (CST-6)
Location: ADEL
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 5.00K
Reported by: Law Enforcement

Hail in POLK, IOWA
From 07-JUN-09 17:57:00 to 07-JUN-09 17:57:00 (CST-6)
Location: DODGE FLD ARPT
Magnitude: 1.00 
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The hail was reported near Saylorville Dam.

Hail in DAVIS, IOWA
From 07-JUN-09 21:15:00 to 07-JUN-09 21:15:00 (CST-6)
Location: BLOOMFIELD
Magnitude: 1.75 
Property damage: 25.00K
Crop damage: 750.00K
Reported by: Public

Hail in DAVIS, IOWA
From 07-JUN-09 21:23:00 to 07-JUN-09 21:23:00 (CST-6)
Location: FLORIS
Magnitude: 1.75 
Property damage: 5.00K
Crop damage: 750.00K
Reported by: Trained Spotter

Hail in DAVIS, IOWA
From 07-JUN-09 21:32:00 to 07-JUN-09 21:32:00 (CST-6)
Location: FLORIS
Magnitude: 1.50 
Property damage: 5.00K
Crop damage: 750.00K
Reported by: Trained Spotter

Heavy Rain in MARSHALL, IOWA
From 07-JUN-09 19:28:00 to 07-JUN-09 19:43:00 (CST-6)
Location: MARSHALLTOWN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported 2.25 inches of rain in 15 minutes.

Thunderstorm Wind in DALLAS, IOWA
From 07-JUN-09 17:27:00 to 07-JUN-09 17:27:00 (CST-6)
Location: ADEL
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Tree branches up to 10 inches in diameter were reported down.

Thunderstorm Wind in DALLAS, IOWA
From 07-JUN-09 17:40:00 to 07-JUN-09 17:40:00 (CST-6)
Location: ORTONVILLE
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Three to 4 inch diameter limbs down.

Thunderstorm Wind in POLK, IOWA
From 07-JUN-09 17:50:00 to 07-JUN-09 17:50:00 (CST-6)
Location: DODGE FLD ARPT
Magnitude: 57.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A trailer was blown across a parking lot.

Thunderstorm Wind in POLK, IOWA
From 07-JUN-09 17:52:00 to 07-JUN-09 17:52:00 (CST-6)
Location: RIDER
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm Wind in DALLAS, IOWA
From 07-JUN-09 17:23:00 to 07-JUN-09 17:23:00 (CST-6)
Location: ADEL
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Tree damage was reported.

Thunderstorm Wind in POLK, IOWA
From 07-JUN-09 18:04:00 to 07-JUN-09 18:04:00 (CST-6)
Location: POLK CITY
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in POLK, IOWA
From 07-JUN-09 18:13:00 to 07-JUN-09 18:13:00 (CST-6)
Location: RIDER
Magnitude: 57.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Large trees were down in the 6600 block of northwest 100th St in Johnston.

Thunderstorm Wind in POLK, IOWA
From 07-JUN-09 18:20:00 to 07-JUN-09 18:20:00 (CST-6)
Location: ANKENY
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in TAMA, IOWA
From 07-JUN-09 19:30:00 to 07-JUN-09 19:30:00 (CST-6)
Location: MONTOUR
Magnitude: 57.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A semi-tractortrailer was blown off of U.S. Highway 30 by winds.

Thunderstorm Wind in POLK, IOWA
From 07-JUN-09 17:54:00 to 07-JUN-09 17:54:00 (CST-6)
Location: RIDER
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Funnel Cloud in POLK, IOWA
From 07-JUN-09 18:09:00 to 07-JUN-09 18:09:00 (CST-6)
Location: ORALABOR
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in ADAIR, IOWA
From 07-JUN-09 16:42:00 to 07-JUN-09 16:42:00 (CST-6)
Location: ADAIR
Magnitude: 1.00 
Property damage: 3.00K
Crop damage: 5.00K
Reported by: Law Enforcement

Hail in GUTHRIE, IOWA
From 07-JUN-09 16:43:00 to 07-JUN-09 16:43:00 (CST-6)
Location: ADAIR
Magnitude: 1.00 
Property damage: 3.00K
Crop damage: 5.00K
Reported by: Trained Spotter