Persistent thunderstorms produced large hail, damaging winds, and numerous reports of flash flooding in much of southwest Minnesota during the late afternoon and evening of September 22nd.

Hail in COTTONWOOD, MINNESOTA
From 22-SEP-10 17:53:00 to 22-SEP-10 17:53:00 (CST-6)
Location: DELFT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in PIPESTONE, MINNESOTA
From 22-SEP-10 17:56:00 to 22-SEP-10 17:56:00 (CST-6)
Location: AIRLIE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Flash Flood in NOBLES, MINNESOTA
From 22-SEP-10 22:00:00 to 23-SEP-10 00:00:00 (CST-6)
Location: ORG
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Heavy rain caused flash flooding of several streets and other low areas.

Hail in COTTONWOOD, MINNESOTA
From 22-SEP-10 18:05:00 to 22-SEP-10 18:05:00 (CST-6)
Location: MOUNTAIN LAKE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in PIPESTONE, MINNESOTA
From 22-SEP-10 18:50:00 to 22-SEP-10 18:50:00 (CST-6)
Location: EDGERTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in PIPESTONE, MINNESOTA
From 22-SEP-10 18:55:00 to 22-SEP-10 18:55:00 (CST-6)
Location: EDGERTON
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm winds caused tree damage, including moderate size branches blown down.

Flash Flood in COTTONWOOD, MINNESOTA
From 22-SEP-10 21:00:00 to 23-SEP-10 00:30:00 (CST-6)
Location: WINDOM
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Heavy rainfall of 5.75 inches caused widespread flash flooding of roads and basements, with sewer backups in Windom. One basement collapsed.

Flash Flood in MURRAY, MINNESOTA
From 22-SEP-10 21:09:00 to 23-SEP-10 00:30:00 (CST-6)
Location: LAKE WILSON
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Heavy rain caused flash flooding in much of southern Murray County. Numerous roads were flooded, including Minnesota Highway 30 in several areas. Numerous basements were flooded, especially in Fulda.

Flash Flood in PIPESTONE, MINNESOTA
From 22-SEP-10 22:00:00 to 23-SEP-10 00:30:00 (CST-6)
Location: TROSKY
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Heavy rain caused flash flooding of numerous roads in much of central and southern Pipestone County, including Minnesota Highway 30 at several locations. The town of Edgerton was temporarily isolated by the flooding. Several motorists were stranded, and some water rescues were needed. there was widespread flooding of fields, parks and other lowlands, as well as basement flooding.

Flash Flood in JACKSON, MINNESOTA
From 22-SEP-10 22:00:00 to 23-SEP-10 00:30:00 (CST-6)
Location: OKABENA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Heavy rain caused flooding of streets and a few basements, and there was a sewer backup into some homes.

Hail in ROCK, MINNESOTA
From 22-SEP-10 15:03:00 to 22-SEP-10 15:03:00 (CST-6)
Location: HILLS
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Flash Flood in LYON, MINNESOTA
From 22-SEP-10 20:00:00 to 23-SEP-10 00:30:00 (CST-6)
Location: BALATON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Heavy rain of several inches over the southern part of Lyon County caused flash flooding of numerous roads, fields, and basements. The roads flooded included U.S. Highway 14 near Tracy and U.S. Highway 59 near Garvin.

Thunderstorm Wind in COTTONWOOD, MINNESOTA
From 22-SEP-10 17:39:00 to 22-SEP-10 17:39:00 (CST-6)
Location: JEFFERS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds caused minor tree damage. The winds were accompanied by quarter size hail.

Hail in COTTONWOOD, MINNESOTA
From 22-SEP-10 17:39:00 to 22-SEP-10 17:39:00 (CST-6)
Location: JEFFERS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Large hail was accompanied by estimated 60 mph wind gusts.