Thunderstorms developed late Tuesday evening along an elevated frontal boundary across far southern Minnesota. Initially, torrential rainfall caused flooding around New Ulm and Mankato, then it evolved into a wind damage threat as it moved eastward across south central Minnesota. Significant damage occurred in Albert Lea as a downburst likely caused a home to be destroyed. The flash flooding in Mankato and other areas of Blue Earth County damaged an estimated 215 homes, mostly due to water seepage into basements, but about 15-20 homes had cracked or otherwise damaged foundations.

Heavy Rain in NICOLLET, MINNESOTA
From 17-JUN-14 22:00:00 to 18-JUN-14 03:00:00 (CST-6)
Location: NORTH MANKATO
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

There was a 24 hour measured rainfall amount of 3.51 inches in North Mankato.   All of the rain fell late on the 17th and during the early morning hours of the 18th.

Heavy Rain in BLUE EARTH, MINNESOTA
From 17-JUN-14 22:00:00 to 18-JUN-14 03:00:00 (CST-6)
Location: MANKATO
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

There was a 24 hour measured rainfall amount of 4.75 inches west of Mankato.   All of the rain fell late on the 17th and during the early morning hours of the 18th.

Hail in HENNEPIN, MINNESOTA
From 17-JUN-14 21:50:00 to 17-JUN-14 21:50:00 (CST-6)
Location: ST LOUIS PARK
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in HENNEPIN, MINNESOTA
From 17-JUN-14 21:58:00 to 17-JUN-14 21:58:00 (CST-6)
Location: ST LOUIS PARK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in HENNEPIN, MINNESOTA
From 17-JUN-14 22:00:00 to 17-JUN-14 22:00:00 (CST-6)
Location: MINNEAPOLIS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BLUE EARTH, MINNESOTA
From 17-JUN-14 22:13:00 to 17-JUN-14 22:13:00 (CST-6)
Location: GOOD THUNDER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in BLUE EARTH, MINNESOTA
From 17-JUN-14 23:09:00 to 17-JUN-14 23:09:00 (CST-6)
Location: MANKATO
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BLUE EARTH, MINNESOTA
From 17-JUN-14 22:38:00 to 17-JUN-14 22:38:00 (CST-6)
Location: MANKATO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BLUE EARTH, MINNESOTA
From 17-JUN-14 23:22:00 to 17-JUN-14 23:22:00 (CST-6)
Location: MANKATO
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in RICE, MINNESOTA
From 18-JUN-14 00:03:00 to 18-JUN-14 00:18:00 (CST-6)
Location: FARIBAULT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

There were several reports of large hail throughout the city of Faribault as it lasted for around 15 minutes.

Thunderstorm Wind in BROWN, MINNESOTA
From 18-JUN-14 01:30:00 to 18-JUN-14 01:30:00 (CST-6)
Location: NEW ULM ARPT
Magnitude: 61.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A 40 by 60 feet pole barn was leveled near the intersection of Highway 29 and 12, or approximately 2 miles northwest of the New Ulm airport, which measured a wind gust of 56 mph around the same time.

Thunderstorm Wind in FREEBORN, MINNESOTA
From 18-JUN-14 02:17:00 to 18-JUN-14 02:19:00 (CST-6)
Location: ALDEN
Magnitude: 61.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: State Official

Several roofs were blown off sheds, and multiple grain bins were blown down around the city of Alden.

Thunderstorm Wind in FREEBORN, MINNESOTA
From 18-JUN-14 02:30:00 to 18-JUN-14 02:30:00 (CST-6)
Location: (AEL)ALBERT LEA ARPT
Magnitude: 70.00 EG
Property damage: 200.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A severe downburst produced considerable damage to a home residence. Damage included the loss of the roof, and structure damage throughout the home, including total destruction of their garage.

Flash Flood in BLUE EARTH, MINNESOTA
From 17-JUN-14 23:40:00 to 18-JUN-14 03:00:00 (CST-6)
Location: EAGLE LAKE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several roads in the city limits of Mankato were impassable for a few hours, plus water was reported up to car bumpers in Rapidan, and the highway department closed a portion of Minnesota 66 south of Mankato due to a mudslide.

Flash Flood in BROWN, MINNESOTA
From 18-JUN-14 02:00:00 to 18-JUN-14 05:00:00 (CST-6)
Location: NEW ULM
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Due to excessive rainfall numerous roads were flooded, especially in New Ulm, and slumping took place in several locations.

Flash Flood in NICOLLET, MINNESOTA
From 17-JUN-14 23:40:00 to 18-JUN-14 03:00:00 (CST-6)
Location: NORTH MANKATO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The excessive rainfall caused a mudslide on Highway 169 in North Mankato on Judson Bottom Road, and there were also numerous flooded streets in the city limits of North Mankato.

Heavy Rain in BLUE EARTH, MINNESOTA
From 17-JUN-14 22:00:00 to 18-JUN-14 03:00:00 (CST-6)
Location: MANKATO
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

There was a 24 hour measured rainfall amount of 5.10 inches southwest of downtown Mankato.  All of the rain fell late on the 17th and during the early morning hours of the 18th.

Heavy Rain in BLUE EARTH, MINNESOTA
From 17-JUN-14 22:00:00 to 18-JUN-14 03:00:00 (CST-6)
Location: EAGLE LAKE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

There was a 24 hour measured rainfall amount of 5.08 inches east of Mankato.   All of the rain fell late on the 17th and during the early morning hours of the 18th.

Hail in BLUE EARTH, MINNESOTA
From 17-JUN-14 22:25:00 to 17-JUN-14 22:25:00 (CST-6)
Location: GOOD THUNDER
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public