The seasons first severe thunderstorms developed during the evening hours of April 9th. These storms were north of a warm front that was draped across central Iowa.  The storms produced large hail across Fillmore and Houston Counties with up to ping pong sized hail falling near Harmony (Fillmore County).

Heavy Rain in WINONA, MINNESOTA
From 09-APR-13 06:00:00 to 10-APR-13 06:00:00 (CST-6)
Location: WHITMAN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP observer near Minnesota City reported 2.11 inches of rain.

Heavy Rain in FILLMORE, MINNESOTA
From 09-APR-13 05:15:00 to 10-APR-13 06:04:00 (CST-6)
Location: PETERSON
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A rainfall report of 2.07 inches was received from the public near Peterson.

Heavy Rain in FILLMORE, MINNESOTA
From 09-APR-13 05:15:00 to 10-APR-13 07:33:00 (CST-6)
Location: HARMONY
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A rainfall report of 3.14 inches was received from the public near Harmony.

Heavy Rain in OLMSTED, MINNESOTA
From 09-APR-13 04:15:00 to 10-APR-13 06:40:00 (CST-6)
Location: ROCHESTER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A rainfall report of 2.5 inches was received from the public in Rochester.

Heavy Rain in FILLMORE, MINNESOTA
From 09-APR-13 05:15:00 to 10-APR-13 07:00:00 (CST-6)
Location: PRESTON
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP observer near Preston reported 2.3 inches of rain.

Heavy Rain in HOUSTON, MINNESOTA
From 09-APR-13 06:15:00 to 10-APR-13 06:00:00 (CST-6)
Location: RIVER JCT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP observer in La Crescent reported 2.22 inches of rain.

Hail in MOWER, MINNESOTA
From 09-APR-13 18:52:00 to 09-APR-13 18:52:00 (CST-6)
Location: LE ROY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in FILLMORE, MINNESOTA
From 09-APR-13 19:29:00 to 09-APR-13 19:29:00 (CST-6)
Location: HARMONY
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Ping pong sized hail fell just north of Harmony.

Heavy Rain in OLMSTED, MINNESOTA
From 09-APR-13 04:00:00 to 10-APR-13 07:52:00 (CST-6)
Location: GENOA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A rainfall reported of 2.9 inches was reported by the public northwest of Rochester.

Hail in FILLMORE, MINNESOTA
From 09-APR-13 19:30:00 to 09-APR-13 19:30:00 (CST-6)
Location: HUTTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Quarter sized hail was reported by a sheriff deputy along U.S. Highway 52 north of Harmony.

Hail in FILLMORE, MINNESOTA
From 09-APR-13 19:30:00 to 09-APR-13 19:30:00 (CST-6)
Location: HARMONY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in HOUSTON, MINNESOTA
From 09-APR-13 20:00:00 to 09-APR-13 20:00:00 (CST-6)
Location: HOUSTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter sized hail fell southeast of Houston.

Hail in FILLMORE, MINNESOTA
From 09-APR-13 19:10:00 to 09-APR-13 19:10:00 (CST-6)
Location: CHERRY GROVE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hail in FILLMORE, MINNESOTA
From 09-APR-13 19:30:00 to 09-APR-13 19:30:00 (CST-6)
Location: HARMONY
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Half dollar sized hail was reported in Harmony.

Hail in FILLMORE, MINNESOTA
From 09-APR-13 19:25:00 to 09-APR-13 19:25:00 (CST-6)
Location: PRESTON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Heavy Rain in WINONA, MINNESOTA
From 09-APR-13 06:15:00 to 10-APR-13 05:00:00 (CST-6)
Location: DRESBACH
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP observer north of La Crescent reported 2.25 inches of rain.

Heavy Rain in HOUSTON, MINNESOTA
From 09-APR-13 05:15:00 to 10-APR-13 06:00:00 (CST-6)
Location: BLACK HAMMER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The COOP observer near Spring Grove reported 2.71 inches of rain.