A very warm, moist, and unstable airmass was in place over Iowa from 8th into the 9th.  Surface temperatures on the 8th warmed into the upper 80s and 90s, with dew point readings in the 70s.  A weak cold front moved into the state during the evening of the 8th and early morning of the 9th.  There was little thunderstorm development initially as the airmass was capped.  Temperatures at the 700 mb level were +14 to +17 C.   During the early morning hours of the 9th, a short wave lifted northeast out of the southern Rockies.  This resulted in cooling of the mid levels of the atmosphere, thus destabilizing the airmass.  The cold front stall out during the morning of the 9th as a second short wave lifted northast.   Eventually, the front moved south of the state on the night of the 9th.  Overall lifted indices were in the -6 to -10 C range with CAPE values in the 3000 to 4000 J/kg range.  Downdraft CAPE was in the 800 to 1400 J/kg range with 30 to 50 kts of shear available.  CAOE available in the -10 to -30 C layer of the atmosphere was between 300 and 700 J/kg, with a freezing level of 14,000 to 14,500 feet.  The LCL was relatively high across the area ranging from just below 1000 meters to about 1250 meters.  Plenty of moisture was available with precipitable water values between 1.75 and 2.25 inches.  Thunderstorms developed initially over Nebraska and tracked east-northeast into Iowa shortly after sunrise.  One supercell continued to track across the state and produced a swath of wind and hail damage from Sac County east to Black Hawk County.  Additional thunderstorms formed along the cold frontal boundary by mid morning and progressed into the state.  The storms remained below severe levels for several hours, but did become severe by mid afternoon.  A broken like of storms formed with two primary areas tracking east across central and southern Iowa.  These two areas featured mini bow echoes.  The predominant mode of severe weather in the afternoon was high winds.  Several of the storms produced hail, but the hail was sub-severe.  A long lived supercell Thunderstorm tracked across northern Iowa Sunday morning with the Highway 20 corridor receiving the brunt of the damage.  Reports of quarter to golf ball sized hail were common with some hail stones reported to be in excess of two inches approaching the size of a tennis ball.  The hail was wind blown as well, at speeds of 50 to 70 mph, making it extremely damaging and dangerous striping siding off houses and knocking out windows.   A measured wind speed of 68 mph was recorded at a KCCI TV SchoolNet site near Jewell in Hamilton County.   Significant hail damage was received all along the track with areas near Otho, Callender, Radcliffe, Eldora and Grundy Center hit particularly hard.  In Eldora, many homes had windows broken out and tree and power line damage left the city without power. Winds of over 100 MPH toppled a communication tower in Eldora.  A short time before the winds hit Eldora, a 102 MPH wind gust was recorded at the landfill northwest of town.  Wind driven hail of 2 to 3 inches in diameter broke all siding and windows out on the north and west walls of most homes, with hail stones reported landing inside of houses.  Damage in the town of Eldora was expected to be greater than the damage done in the town of Parkersburg by the EF5 tornado a year earlier.  A 150 square mile area of crops was affected in Hardin County.  Total losses were reported on 45,000 acres, with 60% or greater loss on another 55,000 acres.  Hail damage in the Otho to Callender areas was described as the worst seen in 20 years.  MODIS satellite pictures of the crop damage area included in this report.  Estimates of crop damage from this one supercell were over $175,000,000.  Governor Culver declared Hardin County a state disaster area within a day or two of the storm, and declared Webster County a disaster area about a week later.  Formal paperwork was turned in to make 8 Iowa counties federal disaster areas,  They were Calhoun, Grundy, Hamilton, Hardin, Ida, Sac, Webster, and Woodbury.  Following the storms, a shelter was set up for those who felt they should not stay in their homes. Luckily the evening round of storms tracked south. Campers at nearby Pine Lake State Park, gathered for an archery event, were bruised by hail.  There were 22 reports of injuries in Hardin County, 11 serious enough for people to be taken to hospital, but there are no known life threatening injuries.  A second round of severe weather rolled roughly along I-80 between 1630 and 1800 CST, producing a lot of tree and power line damage but apparently little structural damage.  As the storms moved through the metropolitan Des Moines area, winds damaged power lines and knocked out power to 12,000 homes.  One storm produced a wet microburst in Union County.  The winds took the roof and shingles off of a two story brick building near Afton.  The afternoon round of storms produced some hail, but most of the hail was not severe as mentioned above, and was pea size or smaller.  During the morning round of storms, lightning struck a building in Waverly.  The lightning struck an antenna on the building and melted screws all the way down the side of the building, starting a small fire and blowing hole in the wall.

Thunderstorm Wind in CASS, IOWA
From 09-AUG-09 15:17:00 to 09-AUG-09 15:17:00 (CST-6)
Location: CUMBERLAND
Magnitude: 61.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotters reported the top of a chimney was blown off of a house.  Small tree limbs down as well.

Thunderstorm Wind in CASS, IOWA
From 09-AUG-09 15:31:00 to 09-AUG-09 15:31:00 (CST-6)
Location: CUMBERLAND
Magnitude: 57.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tree limbs up to 12 inches in diameter down.

Thunderstorm Wind in POLK, IOWA
From 09-AUG-09 16:35:00 to 09-AUG-09 16:35:00 (CST-6)
Location: CLOVER HILLS
Magnitude: 57.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

A 12 inch wide Maple tree was blown down, snapped off just above the ground.

Thunderstorm Wind in POLK, IOWA
From 09-AUG-09 16:40:00 to 09-AUG-09 16:40:00 (CST-6)
Location: DES MOINES
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Large tree down.

Thunderstorm Wind in TAYLOR, IOWA
From 09-AUG-09 17:15:00 to 09-AUG-09 17:15:00 (CST-6)
Location: BEDFORD ARPT
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Six to eight inch diameter tree limb down.

Thunderstorm Wind in POLK, IOWA
From 09-AUG-09 16:51:00 to 09-AUG-09 16:51:00 (CST-6)
Location: ANKENY
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winds blow 12 inch limbs from a tree.  Large branches blocked NE 5th and Grant in Ankeny.

Thunderstorm Wind in POLK, IOWA
From 09-AUG-09 16:39:00 to 09-AUG-09 16:39:00 (CST-6)
Location: LOVINGTON
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Large tree limbs down.

Thunderstorm Wind in TAYLOR, IOWA
From 09-AUG-09 17:30:00 to 09-AUG-09 17:30:00 (CST-6)
Location: BEDFORD
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Tree limbs and power lines were blown down in Bedford.

Thunderstorm Wind in RINGGOLD, IOWA
From 09-AUG-09 17:46:00 to 09-AUG-09 17:46:00 (CST-6)
Location: KNOWLTON
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees were blown down and power was out.

Thunderstorm Wind in JASPER, IOWA
From 09-AUG-09 17:30:00 to 09-AUG-09 17:30:00 (CST-6)
Location: BAXTER
Magnitude: 61.00 EG
Property damage: 15.00K
Crop damage: 5.00K
Reported by: Amateur Radio

Two 18 inch diameter trees and one 30 inch diameter tree was blown down.  Rainfall of 1.25 inches in an hour.

Thunderstorm Wind in POLK, IOWA
From 09-AUG-09 16:51:00 to 09-AUG-09 16:51:00 (CST-6)
Location: ANKENY
Magnitude: 61.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple 3-4 inch tree limbs down between Ankeny BLVD and Delaware Rd.  A power pole was snapped off near Bel Aire Road.

Thunderstorm Wind in CALHOUN, IOWA
From 09-AUG-09 08:12:00 to 09-AUG-09 08:12:00 (CST-6)
Location: SOMERS
Magnitude: 65.00 EG
Property damage: 15.00K
Crop damage: 10.00K
Reported by: Trained Spotter

A modular home list part of a roof and west side of the house due to high winds.

Thunderstorm Wind in CALHOUN, IOWA
From 09-AUG-09 08:05:00 to 09-AUG-09 08:05:00 (CST-6)
Location: SOMERS
Magnitude: 65.00 EG
Property damage: 500.00K
Crop damage: 5.00M
Reported by: Trained Spotter

A trained spotter reports extensive tree, window, roof, and crop damage fro high winds and large hail around somers.

Thunderstorm Wind in WEBSTER, IOWA
From 09-AUG-09 08:15:00 to 09-AUG-09 08:15:00 (CST-6)
Location: CALLENDER
Magnitude: 65.00 EG
Property damage: 250.00K
Crop damage: 5.00M
Reported by: Trained Spotter

Extensive tree, window, roof, and crop damage from high winds and inch diameter.  Large hail remained on the ground in the Callender area for a few hours.

Thunderstorm Wind in HARDIN, IOWA
From 09-AUG-09 09:26:00 to 09-AUG-09 09:26:00 (CST-6)
Location: HUBBARD
Magnitude: 61.00 EG
Property damage: 25.00K
Crop damage: 10.00K
Reported by: Trained Spotter

Tree branches up to a foot in diameter broken.

Thunderstorm Wind in HARDIN, IOWA
From 09-AUG-09 09:40:00 to 09-AUG-09 09:40:00 (CST-6)
Location: ELDORA
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 10.00K
Reported by: Trained Spotter

Four foot diameter tree blown down and some power lines.

Thunderstorm Wind in GRUNDY, IOWA
From 09-AUG-09 10:00:00 to 09-AUG-09 10:00:00 (CST-6)
Location: GRUNDY CENTER
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 5.00K
Reported by: Trained Spotter

Two to three inch diameter branches blow down.  Nickel size hail.

Hail in GRUNDY, IOWA
From 09-AUG-09 10:11:00 to 09-AUG-09 10:11:00 (CST-6)
Location: GRUNDY CENTER
Magnitude: 1.00 
Property damage: 3.00K
Crop damage: 15.00M
Reported by: Amateur Radio

Hail in HARDIN, IOWA
From 09-AUG-09 09:40:00 to 09-AUG-09 09:40:00 (CST-6)
Location: ELDORA
Magnitude: 1.25 
Property damage: 25.00K
Crop damage: 500.00K
Reported by: Trained Spotter

Windows broken by hail.

Hail in BLACK HAWK, IOWA
From 09-AUG-09 10:44:00 to 09-AUG-09 10:44:00 (CST-6)
Location: WASHBURN
Magnitude: 1.00 
Property damage: 10.00K
Crop damage: 15.00K
Reported by: Trained Spotter

Hail in BLACK HAWK, IOWA
From 09-AUG-09 10:40:00 to 09-AUG-09 10:40:00 (CST-6)
Location: ORANGE
Magnitude: 1.00 
Property damage: 10.00K
Crop damage: 10.00K
Reported by: Broadcast Media

Pea to quarter size hail.

Hail in BLACK HAWK, IOWA
From 09-AUG-09 10:40:00 to 09-AUG-09 10:40:00 (CST-6)
Location: WASHBURN
Magnitude: 1.00 
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

One inch diameter hail in Washburn.

Hail in HARDIN, IOWA
From 09-AUG-09 08:19:00 to 09-AUG-09 08:19:00 (CST-6)
Location: ELDORA
Magnitude: 1.75 
Property damage: 500.00K
Crop damage: 500.00K
Reported by: Trained Spotter

Hail of at least golf ball size resulted in broken windows.

Hail in BLACK HAWK, IOWA
From 09-AUG-09 10:40:00 to 09-AUG-09 10:40:00 (CST-6)
Location: WASHBURN
Magnitude: 1.00 
Property damage: 50.00K
Crop damage: 100.00K
Reported by: Storm Chaser

Windows broken by hain and high wind.

Hail in JASPER, IOWA
From 09-AUG-09 16:51:00 to 09-AUG-09 16:51:00 (CST-6)
Location: NEWTON
Magnitude: 0.88 
Property damage: 1.00K
Crop damage: 5.00K
Reported by: Trained Spotter

Hail in SAC, IOWA
From 09-AUG-09 07:08:00 to 09-AUG-09 07:08:00 (CST-6)
Location: HERRING
Magnitude: 1.00 
Property damage: 10.00K
Crop damage: 5.00M
Reported by: Public

Quarter size hail driven by 60 MPH winds.  Crops 50 to 100% damaged with hail on the ground 4 hours after it fell.

Hail in SAC, IOWA
From 09-AUG-09 07:18:00 to 09-AUG-09 07:18:00 (CST-6)
Location: WALL LAKE MUNI ARPT
Magnitude: 2.75 
Property damage: 25.00K
Crop damage: 30.00M
Reported by: Public

Wind driven hail with crops completly destroyed.

Thunderstorm Wind in SAC, IOWA
From 09-AUG-09 07:05:00 to 09-AUG-09 07:05:00 (CST-6)
Location: ODEBOLT
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 50.00K
Reported by: Public

Wind driven hail.

Thunderstorm Wind in GRUNDY, IOWA
From 09-AUG-09 09:50:00 to 09-AUG-09 09:50:00 (CST-6)
Location: WELLSBURG
Magnitude: 77.00 EG
Property damage: 250.00K
Crop damage: 25.00K
Reported by: Newspaper

Grain bins and metal outbuildings were destroyed by high wind.

Hail in GRUNDY, IOWA
From 09-AUG-09 09:55:00 to 09-AUG-09 09:55:00 (CST-6)
Location: WELLSBURG
Magnitude: 2.50 
Property damage: 250.00K
Crop damage: 1.00M
Reported by: Newspaper

Lightning in BREMER, IOWA
From 09-AUG-09 10:37:00 to 09-AUG-09 10:37:00 (CST-6)
Location: WAVERLY
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Newspaper

Thunderstorm Wind in HARDIN, IOWA
From 09-AUG-09 09:32:00 to 09-AUG-09 09:32:00 (CST-6)
Location: OWASA
Magnitude: 89.00 MG
Property damage: 25.00K
Crop damage: 50.00K
Reported by: Newspaper

A wind gust of 102 MPH was recorded at the Landfill northwest of Eldora.

Thunderstorm Wind in POLK, IOWA
From 09-AUG-09 16:35:00 to 09-AUG-09 16:35:00 (CST-6)
Location: ASHAWA
Magnitude: 57.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Winds of up to 65 MPH reported at Western Hills Drive between E. P. True and Ashworth Road.

Thunderstorm Wind in POLK, IOWA
From 09-AUG-09 16:38:00 to 09-AUG-09 16:38:00 (CST-6)
Location: URBANDALE
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Minor tree limb damage.

Thunderstorm Wind in POLK, IOWA
From 09-AUG-09 16:49:00 to 09-AUG-09 16:49:00 (CST-6)
Location: SAYLORVILLE
Magnitude: 57.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter reported pea size hail and winds of up to 65 MPH.

Thunderstorm Wind in POLK, IOWA
From 09-AUG-09 16:53:00 to 09-AUG-09 16:53:00 (CST-6)
Location: ANKENY
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Eight inch diameter branches blown down.

Thunderstorm Wind in POLK, IOWA
From 09-AUG-09 16:43:00 to 09-AUG-09 16:43:00 (CST-6)
Location: RIDER
Magnitude: 65.00 EG
Property damage: 25.00K
Crop damage: 5.00K
Reported by: Trained Spotter

Straight line winds of 70 to 80 MPH with pea size hail.

Thunderstorm Wind in POLK, IOWA
From 09-AUG-09 16:53:00 to 09-AUG-09 16:53:00 (CST-6)
Location: ANKENY
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Pea size hail with high winds.

Thunderstorm Wind in POLK, IOWA
From 09-AUG-09 17:03:00 to 09-AUG-09 17:03:00 (CST-6)
Location: SWANWOOD
Magnitude: 57.00 MG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: AWOS

Thunderstorm Wind in POLK, IOWA
From 09-AUG-09 16:50:00 to 09-AUG-09 16:50:00 (CST-6)
Location: ANKENY
Magnitude: 61.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Eight to 10 inch diameter branches down.  Some damage to door and roof of house.

Thunderstorm Wind in POLK, IOWA
From 09-AUG-09 17:04:00 to 09-AUG-09 17:04:00 (CST-6)
Location: BONDURANT
Magnitude: 57.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Amateur Radio

High winds and pea hail.

Thunderstorm Wind in POLK, IOWA
From 09-AUG-09 17:01:00 to 09-AUG-09 17:01:00 (CST-6)
Location: ALTOONA
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in TAYLOR, IOWA
From 09-AUG-09 17:15:00 to 09-AUG-09 17:15:00 (CST-6)
Location: BEDFORD ARPT
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous trees were downed 4 miles west and 4 miles southwest of Bedford.

Thunderstorm Wind in TAYLOR, IOWA
From 09-AUG-09 17:51:00 to 09-AUG-09 17:51:00 (CST-6)
Location: BEDFORD ARPT
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous trees were blown down west and southwest of Bedford.

Hail in WEBSTER, IOWA
From 09-AUG-09 08:30:00 to 09-AUG-09 08:30:00 (CST-6)
Location: CLAY WORKS
Magnitude: 1.50 
Property damage: 10.00K
Crop damage: 100.00K
Reported by: Trained Spotter

Hail in SAC, IOWA
From 09-AUG-09 07:16:00 to 09-AUG-09 07:16:00 (CST-6)
Location: WALL LAKE
Magnitude: 1.00 
Property damage: 5.00K
Crop damage: 50.00K
Reported by: Trained Spotter

Hail in SAC, IOWA
From 09-AUG-09 07:18:00 to 09-AUG-09 07:18:00 (CST-6)
Location: WALL LAKE
Magnitude: 1.75 
Property damage: 25.00K
Crop damage: 100.00K
Reported by: Trained Spotter

Hail in CARROLL, IOWA
From 09-AUG-09 07:27:00 to 09-AUG-09 07:27:00 (CST-6)
Location: BREDA
Magnitude: 1.00 
Property damage: 5.00K
Crop damage: 5.00K
Reported by: Fire Department/Rescue

Hail in CALHOUN, IOWA
From 09-AUG-09 07:37:00 to 09-AUG-09 07:37:00 (CST-6)
Location: YETTER
Magnitude: 1.50 
Property damage: 25.00K
Crop damage: 15.00M
Reported by: Trained Spotter

Hail in CALHOUN, IOWA
From 09-AUG-09 07:50:00 to 09-AUG-09 07:50:00 (CST-6)
Location: ROCKWELL CITY
Magnitude: 1.25 
Property damage: 15.00K
Crop damage: 15.00M
Reported by: Trained Spotter

Hail in CALHOUN, IOWA
From 09-AUG-09 07:30:00 to 09-AUG-09 07:30:00 (CST-6)
Location: YETTER
Magnitude: 1.50 
Property damage: 10.00K
Crop damage: 25.00K
Reported by: Trained Spotter

Hail broke out 2 windows of a house.

Hail in CALHOUN, IOWA
From 09-AUG-09 08:10:00 to 09-AUG-09 08:10:00 (CST-6)
Location: SOMERS
Magnitude: 1.00 
Property damage: 3.00K
Crop damage: 10.00K
Reported by: Trained Spotter

Thunderstorm Wind in JASPER, IOWA
From 09-AUG-09 17:05:00 to 09-AUG-09 17:05:00 (CST-6)
Location: PRAIRIE CITY
Magnitude: 61.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Storm Chaser

High winds and small hail reported.

Thunderstorm Wind in JASPER, IOWA
From 09-AUG-09 17:30:00 to 09-AUG-09 17:30:00 (CST-6)
Location: BAXTER
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in MARSHALL, IOWA
From 09-AUG-09 17:44:00 to 09-AUG-09 17:44:00 (CST-6)
Location: MARSHALLTOWN
Magnitude: 65.00 MG
Property damage: 10.00K
Crop damage: 25.00K
Reported by: Mesonet

Thunderstorm Wind in POWESHIEK, IOWA
From 09-AUG-09 18:07:00 to 09-AUG-09 18:07:00 (CST-6)
Location: BROOKLYN
Magnitude: 55.00 MG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in MAHASKA, IOWA
From 09-AUG-09 18:04:00 to 09-AUG-09 18:04:00 (CST-6)
Location: KEOMAH
Magnitude: 52.00 MG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Storm Chaser

On Highway 92 near Snyder Ave.

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

High winds and small hail reported.

Thunderstorm Wind in UNION, IOWA
From 09-AUG-09 17:53:00 to 09-AUG-09 17:53:00 (CST-6)
Location: AFTON
Magnitude: 64.00 MG
Property damage: 25.00K
Crop damage: 10.00K
Reported by: Mesonet

Thunderstorm Wind in DALLAS, IOWA
From 09-AUG-09 16:30:00 to 09-AUG-09 16:30:00 (CST-6)
Location: HADDEN HILL
Magnitude: 57.00 EG
Property damage: 10.00K
Crop damage: 5.00K
Reported by: Trained Spotter

Winds of 60 to 70 MPH with pea size hail.

Thunderstorm Wind in CALHOUN, IOWA
From 09-AUG-09 07:46:00 to 09-AUG-09 07:46:00 (CST-6)
Location: YETTER
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Three inch diameter branches broken.

Thunderstorm Wind in WEBSTER, IOWA
From 09-AUG-09 08:19:00 to 09-AUG-09 08:19:00 (CST-6)
Location: CALLENDER
Magnitude: 61.00 EG
Property damage: 25.00K
Crop damage: 10.00K
Reported by: Amateur Radio

Trees were downed on a roof.  Damage caused by combination of silver dollar size hail and high winds.

Thunderstorm Wind in CALHOUN, IOWA
From 09-AUG-09 08:10:00 to 09-AUG-09 08:10:00 (CST-6)
Location: SOMERS
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Large trees blown down.

Thunderstorm Wind in HARDIN, IOWA
From 09-AUG-09 09:14:00 to 09-AUG-09 09:14:00 (CST-6)
Location: RADCLIFFE
Magnitude: 61.00 EG
Property damage: 500.00K
Crop damage: 100.00K
Reported by: Trained Spotter

Extensive crop damage.  Several houses with broken windows from the  hail on the west sides of them.  Crop damage swath a mile to mile and one half wide.

Thunderstorm Wind in HARDIN, IOWA
From 09-AUG-09 09:40:00 to 09-AUG-09 09:40:00 (CST-6)
Location: STEAMBOAT ROCK
Magnitude: 57.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Large trees blown down.

Hail in WEBSTER, IOWA
From 09-AUG-09 08:35:00 to 09-AUG-09 08:35:00 (CST-6)
Location: OTHO
Magnitude: 1.75 
Property damage: 500.00K
Crop damage: 30.00M
Reported by: Trained Spotter

Windows broken in houses.

Hail in WEBSTER, IOWA
From 09-AUG-09 08:40:00 to 09-AUG-09 08:40:00 (CST-6)
Location: BRUSHY
Magnitude: 1.00 
Property damage: 250.00K
Crop damage: 1.00M
Reported by: Trained Spotter

Hail in HAMILTON, IOWA
From 09-AUG-09 09:05:00 to 09-AUG-09 09:05:00 (CST-6)
Location: ELLSWORTH
Magnitude: 1.00 
Property damage: 10.00K
Crop damage: 50.00K
Reported by: Law Enforcement

Windshield broken by hail.

Hail in WEBSTER, IOWA
From 09-AUG-09 08:30:00 to 09-AUG-09 08:30:00 (CST-6)
Location: KALO
Magnitude: 1.75 
Property damage: 250.00K
Crop damage: 1.00M
Reported by: Trained Spotter

Spotter reports larger than golf ball size hail.  It fell at Nelson Ave and Woodmans Hollow Road north of Coalville.  Small branches were also blown down by high winds.

Hail in HARDIN, IOWA
From 09-AUG-09 09:40:00 to 09-AUG-09 09:40:00 (CST-6)
Location: ELDORA
Magnitude: 1.00 
Property damage: 2.00K
Crop damage: 10.00K
Reported by: Trained Spotter

One inch hail reported in Pine Lake State Park.

Hail in WEBSTER, IOWA
From 09-AUG-09 08:19:00 to 09-AUG-09 08:19:00 (CST-6)
Location: CLAY WORKS
Magnitude: 1.00 
Property damage: 10.00K
Crop damage: 5.00K
Reported by: Trained Spotter

Hail in HARDIN, IOWA
From 09-AUG-09 09:40:00 to 09-AUG-09 09:40:00 (CST-6)
Location: ELDORA
Magnitude: 3.00 
Property damage: 20.00M
Crop damage: 55.00M
Reported by: Trained Spotter

Large hail brok windows out of a residence and caused considerable crop damage.

Thunderstorm Wind in HARDIN, IOWA
From 09-AUG-09 09:38:00 to 09-AUG-09 09:38:00 (CST-6)
Location: ELDORA
Magnitude: 90.00 EG
Property damage: 1.00M
Crop damage: 500.00K
Reported by: Amateur Radio

Many Residences in town have broken windows.  The Red Cross set up a shelter and treated several injuries.  A communications tower was toppled by the high wind.

Thunderstorm Wind in UNION, IOWA
From 09-AUG-09 17:53:00 to 09-AUG-09 17:53:00 (CST-6)
Location: AFTON
Magnitude: 89.00 EG
Property damage: 500.00K
Crop damage: 50.00K
Reported by: Emergency Manager

A two-story brick building with wooden roof and shingles was damaged.  Roof and shingles were blown off.  A 4 foot diameter tree was uprooted in the city park and 3 air handling units were blown off of the East Union High School in Afton.  Tin was blown off the feed mill.

Hail in HARDIN, IOWA
From 09-AUG-09 09:38:00 to 09-AUG-09 09:38:00 (CST-6)
Location: ELDORA
Magnitude: 1.75 
Property damage: 100.00K
Crop damage: 100.00K
Reported by: Trained Spotter

Thunderstorm Wind in JASPER, IOWA
From 09-AUG-09 17:36:00 to 09-AUG-09 17:36:00 (CST-6)
Location: KELLOGG
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Tree branches down.

Thunderstorm Wind in POLK, IOWA
From 09-AUG-09 16:34:00 to 09-AUG-09 16:34:00 (CST-6)
Location: CLIVE
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Tree branches down.

Thunderstorm Wind in POLK, IOWA
From 09-AUG-09 16:31:00 to 09-AUG-09 16:31:00 (CST-6)
Location: JOHNSTON
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Some tree branch damage.

Thunderstorm Wind in HAMILTON, IOWA
From 09-AUG-09 09:00:00 to 09-AUG-09 09:00:00 (CST-6)
Location: JEWELL
Magnitude: 68.00 MG
Property damage: 10.00K
Crop damage: 10.00K
Reported by: Trained Spotter

Thunderstorm Wind in GRUNDY, IOWA
From 09-AUG-09 09:58:00 to 09-AUG-09 09:58:00 (CST-6)
Location: GRUNDY CENTER
Magnitude: 57.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Winds of up to 65 MPH took out the power in Grundy Center.

Thunderstorm Wind in GRUNDY, IOWA
From 09-AUG-09 10:02:00 to 09-AUG-09 10:02:00 (CST-6)
Location: HOLLAND
Magnitude: 61.00 EG
Property damage: 50.00K
Crop damage: 75.00K
Reported by: Trained Spotter

Shingle debris flying in the wind along with golf ball size hail.

Thunderstorm Wind in CASS, IOWA
From 09-AUG-09 15:00:00 to 09-AUG-09 15:00:00 (CST-6)
Location: GRISWOLD
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Trained Spotter

High winds and heavy rain.

Thunderstorm Wind in CASS, IOWA
From 09-AUG-09 15:21:00 to 09-AUG-09 15:21:00 (CST-6)
Location: CUMBERLAND
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tree limbs blown down by high winds.

Thunderstorm Wind in DALLAS, IOWA
From 09-AUG-09 16:29:00 to 09-AUG-09 16:29:00 (CST-6)
Location: SHULER MINE
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: NWS Employee

Minor tree limb damage.