During the afternoon of September 21, a cold front pushed a line of showers and thunderstorms across eastern Iowa, northwest Illinois and northeast Missouri. Hail up to the size of a golf ball fell in and around Cedar Rapids and wind gusts in excess of 60 mph were observed in areas along and north of Interstate 80.

Hail in BENTON, IOWA
From 21-SEP-10 12:03:00 to 21-SEP-10 12:03:00 (CST-6)
Location: ATKINS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Quarter-sized hail fell in Atkins, IA at 103 pm CDT September 21.

Hail in LINN, IOWA
From 21-SEP-10 12:18:00 to 21-SEP-10 12:18:00 (CST-6)
Location: HIAWATHA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter-sized hail fell in Hiawatha, IA at 118 pm CDT September 21.

Hail in LINN, IOWA
From 21-SEP-10 12:19:00 to 21-SEP-10 12:19:00 (CST-6)
Location: HIAWATHA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter-sized hail fell about 5 miles north northeast of Cedar Rapids, IA at 119 pm CDT September 21.

Hail in BENTON, IOWA
From 21-SEP-10 12:30:00 to 21-SEP-10 12:30:00 (CST-6)
Location: BELLE PLAINE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LINN, IOWA
From 21-SEP-10 12:31:00 to 21-SEP-10 12:31:00 (CST-6)
Location: MARION
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Ping pong ball-sized hail fell about 2 miles northwest of Marion, IA at 131 pm CDT September 21.

Hail in LINN, IOWA
From 21-SEP-10 12:40:00 to 21-SEP-10 12:40:00 (CST-6)
Location: CEDAR RAPIDS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter-sized hail fell in Cedar Rapids, IA at 140 pm CDT September 21.  This report was relayed by Linn County EMA.

Thunderstorm Wind in JONES, IOWA
From 21-SEP-10 12:54:00 to 21-SEP-10 12:54:00 (CST-6)
Location: MONTICELLO
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts estimated to be 60 mph were observed in Monticello, IA at 154 pm CDT September 21.

Thunderstorm Wind in JONES, IOWA
From 21-SEP-10 12:54:00 to 21-SEP-10 12:54:00 (CST-6)
Location: MONTICELLO
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts estimated to be 60 mph blew down several 2 inch diameter tree branches in Monticello, IA at 154 pm CDT September 21.

Thunderstorm Wind in JONES, IOWA
From 21-SEP-10 12:55:00 to 21-SEP-10 12:55:00 (CST-6)
Location: MONTICELLO
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Wind gusts estimated to be 65 mph blew a power pole and large tree down in Monticello, IA around 155 pm CDT September 21.

Thunderstorm Wind in JONES, IOWA
From 21-SEP-10 12:55:00 to 21-SEP-10 12:55:00 (CST-6)
Location: MONTICELLO
Magnitude: 61.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts estimated to be 70 mph snapped some large trees off at the base in a mobile home park about 1 mile north of Monticello, IA around 155 pm CDT September 21.  Some of the trees fell onto some cars.

Thunderstorm Wind in JONES, IOWA
From 21-SEP-10 13:00:00 to 21-SEP-10 13:00:00 (CST-6)
Location: TEMPLE HILL
Magnitude: 65.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Wind gusts estimated to be 75 mph blew a semi-truck over on Highway 136 about 3 miles south of Cascade, IA around 2 pm CDT September 21.

Thunderstorm Wind in JONES, IOWA
From 21-SEP-10 13:05:00 to 21-SEP-10 13:05:00 (CST-6)
Location: MONTICELLO MUNI ARPT
Magnitude: 61.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

Wind gusts estimated to be 70 mph blew a tree and flagpole down about 1 mile north of  Monticello, IA around 205 pm CDT September 21.  A trampoline was also blown over onto its side.  This report was relayed by NWS MKX.

Hail in DUBUQUE, IOWA
From 21-SEP-10 13:35:00 to 21-SEP-10 13:35:00 (CST-6)
Location: KEY WEST
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter-sized hail fell in Key West, IA at 235 pm CDT September 21.

Thunderstorm Wind in CEDAR, IOWA
From 21-SEP-10 13:50:00 to 21-SEP-10 13:50:00 (CST-6)
Location: TIPTON
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Wind gusts estimated to be 65 mph split a tree in half in Tipton, IA around 250 pm CDT September 21.  A large branch from the tree fell onto some power lines.

Thunderstorm Wind in CLINTON, IOWA
From 21-SEP-10 14:10:00 to 21-SEP-10 14:10:00 (CST-6)
Location: BIG ROCK
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts estimated to be 60 mph were observed about 4 miles south southwest of Wheatland, IA around 310 pm CDT September 21.

Hail in JONES, IOWA
From 21-SEP-10 12:54:00 to 21-SEP-10 12:54:00 (CST-6)
Location: MONTICELLO
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LINN, IOWA
From 21-SEP-10 12:25:00 to 21-SEP-10 12:25:00 (CST-6)
Location: MARION
Magnitude: 1.75 
Property damage: 500.00K
Crop damage: 0.00K
Reported by: Public

Golf ball-sized hail fell in Marion, IA at 125 pm CDT September 21.  This report was relayed by KCRG.

Hail in LINN, IOWA
From 21-SEP-10 12:25:00 to 21-SEP-10 12:25:00 (CST-6)
Location: CEDAR RAPIDS
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Golf ball-sized hail fell in Cedar Rapids, IA at 125 pm CDT September 21.

Hail in LINN, IOWA
From 21-SEP-10 12:25:00 to 21-SEP-10 12:25:00 (CST-6)
Location: MARION
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Quarter-sized hail fell in Marion, IA at 125 pm CDT September 21.