Showers and thunderstorms moved northeastward across the area April 30th, as a cold front pushed into central Iowa.  Some of the storms surpassed severe  thresholds, producing damaging winds and large hail. Torrential downpours of rain were also common as the storms moved through, dumping a quick half inch to an inch and a quarter of rain across the area. Daytime high temperatures ranged from the lower 70s near Independence to around 80 in Freeport, the Quad Cities, and Muscatine.

Hail in KEOKUK, IOWA
From 30-APR-10 11:40:00 to 30-APR-10 11:40:00 (CST-6)
Location: OLLIE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter sized hail fell 1 mile west of Ollie, IA at 1240 pm April 30.

Hail in JOHNSON, IOWA
From 30-APR-10 12:25:00 to 30-APR-10 12:25:00 (CST-6)
Location: IOWA CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter sized hail fell at the Highway 1 and Interstate 80 interchange on the northeast side of Iowa City, IA at 125 pm April 30.

Hail in JOHNSON, IOWA
From 30-APR-10 12:24:00 to 30-APR-10 12:24:00 (CST-6)
Location: IOWA CITY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Non-severe hail (<1.0) fell in Iowa City, IA at 124 pm April 30.

Hail in LEE, IOWA
From 30-APR-10 14:05:00 to 30-APR-10 14:05:00 (CST-6)
Location: DONNELLSON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Non-severe hail (<1.0) fell near Donnellson, IA around 305 pm April 30.

Hail in LEE, IOWA
From 30-APR-10 14:00:00 to 30-APR-10 14:00:00 (CST-6)
Location: DONNELLSON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Non-severe hail (<1.0) fell in Donnellson, IA at 300 pm April 30.  The hail covered the ground.

Thunderstorm Wind in LEE, IOWA
From 30-APR-10 14:05:00 to 30-APR-10 14:05:00 (CST-6)
Location: DONNELLSON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts estimated to be 60 mph blew some branches down in Donnellson, IA around 305 pm April 30.

Thunderstorm Wind in LEE, IOWA
From 30-APR-10 14:05:00 to 30-APR-10 14:05:00 (CST-6)
Location: DONNELLSON
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 Donnellson, IA around 305 pm April 30.

Thunderstorm Wind in CEDAR, IOWA
From 30-APR-10 12:40:00 to 30-APR-10 12:40:00 (CST-6)
Location: LIME CITY
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Wind gusts estimated to be 70 mph blew down some trees and branches just southeast of Rochester, IA around 140 pm April 30.  This report was relayed by KCRG TV.

Thunderstorm Wind in CEDAR, IOWA
From 30-APR-10 12:44:00 to 30-APR-10 12:44:00 (CST-6)
Location: LIME CITY
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A 65 mph wind gust was measured about 2 miles southeast of Rochester, IA at 144 pm April 30.

Hail in CLINTON, IOWA
From 30-APR-10 13:12:00 to 30-APR-10 13:12:00 (CST-6)
Location: DEWITT
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Non-severe hail (<1.0) fell about 1 mile north of De Witt, IA on Highway 61 at 212 pm April 30.

Thunderstorm Wind in CLINTON, IOWA
From 30-APR-10 13:12:00 to 30-APR-10 13:12:00 (CST-6)
Location: WELTON
Magnitude: 56.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Wind gusts estimated to be 65 mph damaged a barn about 2 miles northeast of Welton, IA at 212 pm April 30.

Thunderstorm Wind in DUBUQUE, IOWA
From 30-APR-10 13:25:00 to 30-APR-10 13:25:00 (CST-6)
Location: (DBQ)DUBUQUE MUNI AR
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts estimated to be 60 mph blew a semi truck into the median of Highway 61 about 1 mile north northeast of the Dubuque, IA Regional Airport around 225 pm April 30.

Thunderstorm Wind in DUBUQUE, IOWA
From 30-APR-10 13:25:00 to 30-APR-10 13:25:00 (CST-6)
Location: (DBQ)DUBUQUE MUNI AR
Magnitude: 61.00 EG
Property damage: 500.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Wind gusts estimated to be 70 mph destroyed a hanger at the Dubuque, IA Regional Airport at 225 pm April 30.  Parts of the hanger were lofted into two other hanger buildings damaging them.  In addition, several airplanes inside the hangers were also heavily damaged. An airport official also contributed to this report.