Warm and humid conditions were found across Eastern Iowa, Western Illinois, and Northeast Missouri May 11th, Mother's Day, as a warm front lifted into the area. Thunderstorms developed along the front in southeast Iowa and northwest Illinois during the mid to late afternoon. Some of the storms were severe, producing large hail up to the size of a golf ball, a brief tornado touchdown, and an isolated wind gust around 60 mph. Near Fairfield, IA, a hailstorm lasted for over 20 minutes. Heavy rains were also noted with the stronger storms, with some areas picking up over an inch in a short amount of time.

Hail in DES MOINES, IOWA
From 11-MAY-14 16:40:00 to 11-MAY-14 16:40:00 (CST-6)
Location: MEDIAPOLIS
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in VAN BUREN, IOWA
From 11-MAY-14 16:59:00 to 11-MAY-14 16:59:00 (CST-6)
Location: CANTRIL
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Half dollar sized hail fell in Cantril, IA at 559 pm CDT May 11.

Hail in DES MOINES, IOWA
From 11-MAY-14 16:43:00 to 11-MAY-14 16:43:00 (CST-6)
Location: HURON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in DES MOINES, IOWA
From 11-MAY-14 16:43:00 to 11-MAY-14 16:43:00 (CST-6)
Location: HURON
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 southeast of Oakville, IA at 543 pm CDT May 11.

Hail in KEOKUK, IOWA
From 11-MAY-14 13:53:00 to 11-MAY-14 13:53:00 (CST-6)
Location: HEDRICK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A few quarter sized to slightly larger hailstones fell in Hedrick, IA around 253 pm CDT May 11.

Hail in LEE, IOWA
From 11-MAY-14 15:10:00 to 11-MAY-14 15:10:00 (CST-6)
Location: ARGYLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter sized hail fell about 1 mile west of Argyle, IA around 410 pm CDT May 11.

Tornado in LEE, IOWA
From 11-MAY-14 15:24:00 to 11-MAY-14 15:24:00 (CST-6)
Location: CHARLESTON
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Spotters reported a funnel going up and down for several miles.  An NWS storm survey found a single area of damage to tree limbs.

Hail in KEOKUK, IOWA
From 11-MAY-14 13:45:00 to 11-MAY-14 13:53:00 (CST-6)
Location: HEDRICK
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Pea to nickel size hail fell for about 8 minutes in Hedrick, IA the afternoon of May 11, 2014.  Heavy rain was also observed.

Hail in JEFFERSON, IOWA
From 11-MAY-14 14:44:00 to 11-MAY-14 14:44:00 (CST-6)
Location: BATAVIA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter sized hail fell in Batavia, IA at 344 pm CDT May 11.

Hail in JEFFERSON, IOWA
From 11-MAY-14 14:59:00 to 11-MAY-14 15:22:00 (CST-6)
Location: FAIRFIELD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel to quarter sized hail fell about 2 miles south of Fairfield, IA near the Highway 34 and Highway 1 interchange from 359 pm to 422 pm CDT May 11.

Hail in WASHINGTON, IOWA
From 11-MAY-14 14:43:00 to 11-MAY-14 14:47:00 (CST-6)
Location: BRIGHTON
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Golf ball sized hail fell in Brighton, IA for over 4 minutes from 343 pm to 347 pm CDT May 11.

Hail in JEFFERSON, IOWA
From 11-MAY-14 14:59:00 to 11-MAY-14 14:59:00 (CST-6)
Location: FAIRFIELD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter sized hail fell 3 miles southwest of Fairfield, IA at 359 pm CDT May 11.

Hail in JEFFERSON, IOWA
From 11-MAY-14 15:00:00 to 11-MAY-14 15:00:00 (CST-6)
Location: FAIRFIELD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter sized hail fell 2 miles west of Fairfield, IA at 400 pm CDT May 11.

Hail in JEFFERSON, IOWA
From 11-MAY-14 14:54:00 to 11-MAY-14 15:04:00 (CST-6)
Location: FAIRFIELD
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Dime to nickel sized hail fell in Fairfield, IA from 354 pm to 404 pm CDT May 11.

Hail in VAN BUREN, IOWA
From 11-MAY-14 15:05:00 to 11-MAY-14 15:05:00 (CST-6)
Location: INDIAN LAKE PARK
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Half dollar sized hail fell 5 miles northwest of Croton, IA at 405 pm CDT May 11.

Hail in JEFFERSON, IOWA
From 11-MAY-14 15:06:00 to 11-MAY-14 15:06:00 (CST-6)
Location: FAIRFIELD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter sized hail fell in Fairfield, IA at 406 pm CDT May 11.

Hail in VAN BUREN, IOWA
From 11-MAY-14 15:10:00 to 11-MAY-14 15:10:00 (CST-6)
Location: FARMINGTON
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Golf ball sized hail fell in Farmington, IA at 410 pm CDT May 11.

Hail in LEE, IOWA
From 11-MAY-14 15:18:00 to 11-MAY-14 15:18:00 (CST-6)
Location: DONNELLSON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter sized hail fell in Donnellson, IA at 418 pm CDT May 11.  It partially covered the ground.

Hail in LEE, IOWA
From 11-MAY-14 15:25:00 to 11-MAY-14 15:25:00 (CST-6)
Location: DONNELLSON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JEFFERSON, IOWA
From 11-MAY-14 15:46:00 to 11-MAY-14 15:46:00 (CST-6)
Location: LOCKRIDGE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JEFFERSON, IOWA
From 11-MAY-14 15:40:00 to 11-MAY-14 15:40:00 (CST-6)
Location: LOCKRIDGE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter sized hail fell in Lockridge, IA at 440 pm CDT May 11.

Hail in DES MOINES, IOWA
From 11-MAY-14 16:31:00 to 11-MAY-14 16:31:00 (CST-6)
Location: MEDIAPOLIS
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Golf ball sized hail fell 1 mile north of Mediapolis, IA at 531 pm CDT May 11.