High level clouds were common across the area April 26, as a warm front lifted northward to between Highways 30 and 20. Some heavy rain-producing showers and thunderstorms developed during the late afternoon northwest of Highway 151. One produced large hail and a tornado as it tracked from northern Linn County into southern Delaware County.

Flash Flood in BENTON, IOWA
From 26-APR-09 20:00:00 to 26-APR-09 22:00:00 (CST-6)
Location: VINTON MEML ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Heavy rains of 1 to 3 inches fell across the area on April 26 resulting in some flash flooding.  Bear Creek flooded out of its banks and over the county road about 5 miles north of Vinton, IA making it impassable.

Flash Flood in BUCHANAN, IOWA
From 26-APR-09 19:00:00 to 26-APR-09 22:00:00 (CST-6)
Location: JESUP
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy rains of 1 to 3 inches fell across the area on April 26.  Flash flooding of several fields, waterways, and ditches along Highway 20 from just south of Jesup, IA to the Winthrop-Quasqueton exit was observed between 8 and 9 pm.

Hail in LINN, IOWA
From 26-APR-09 15:42:00 to 26-APR-09 15:42:00 (CST-6)
Location: CENTER PT
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in DELAWARE, IOWA
From 26-APR-09 16:15:00 to 26-APR-09 16:15:00 (CST-6)
Location: DELHI
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Tornado in LINN, IOWA
From 26-APR-09 15:52:00 to 26-APR-09 16:10:00 (CST-6)
Location: LAFAYETTE
Tornado F-scale: EF1
Property damage: 500.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF1 tornado with estimated wind speeds of up to 100 mph touched down near Lafayette, IA around 452 pm and proceeded to track northeast crossing the Linn-Delaware County line around 510 pm, finally lifting just north of Buck Creek, IA around 530 pm.  Several farms sustained structural and equipment damage, trees were uprooted or snapped off, some camping trailers were destroyed, and several power lines were blown down.

Tornado in DELAWARE, IOWA
From 26-APR-09 16:10:00 to 26-APR-09 16:30:00 (CST-6)
Location: RYAN
Tornado F-scale: EF1
Property damage: 500.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Continued from Linn County. An EF1 tornado with estimated wind speeds of up to 100 mph touched down near Lafayette, IA around 452 pm and proceeded to track northeast crossing the Linn-Delaware County line around 510 pm, finally lifting just north of Buck Creek, IA around 530 pm.  Several farms sustained structural and equipment damage, trees were uprooted or snapped off, some camping trailers were destroyed, and several power lines were blown down.

Hail in LINN, IOWA
From 26-APR-09 15:49:00 to 26-APR-09 15:49:00 (CST-6)
Location: LAFAYETTE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter-sized hail fell about 5 miles east of Center Point, IA at 449 pm.

Hail in DELAWARE, IOWA
From 26-APR-09 16:07:00 to 26-APR-09 16:07:00 (CST-6)
Location: RYAN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Quarter-sized hail fell in Ryan, IA at 507 pm.

Hail in LINN, IOWA
From 26-APR-09 16:07:00 to 26-APR-09 16:07:00 (CST-6)
Location: COGGON
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Golf ball-sized hail fell about 3 miles west of Coggon, IA at 507 pm.