During the morning of Saturday, September 20th, a complex of thunderstorms developed across eastern North Dakota, and moved southeast across west central Minnesota by the afternoon, and through most of southern Minnesota by the early evening. Embedded thunderstorms formed lines and caused severe wind gusts from west central, southeast to southeast Minnesota. Most of the gusts were between 40 and 55 mph, but a few gusted over 60 mph and caused wind damage. In addition, hail formed near Waseca, and dropped a considerable amount in a short period of time.

Thunderstorm Wind in SWIFT, MINNESOTA
From 20-SEP-14 14:20:00 to 20-SEP-14 14:20:00 (CST-6)
Location: BENSON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A 10 inch wide apple tree was uprooted. There were also several other reporting sites that had wind gusts over 50 mph.

Thunderstorm Wind in KANDIYOHI, MINNESOTA
From 20-SEP-14 15:15:00 to 20-SEP-14 15:15:00 (CST-6)
Location: ATWATER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A large pear tree was uprooted.

Hail in MCLEOD, MINNESOTA
From 20-SEP-14 15:44:00 to 20-SEP-14 15:44:00 (CST-6)
Location: HUTCHINSON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in MCLEOD, MINNESOTA
From 20-SEP-14 15:43:00 to 20-SEP-14 15:43:00 (CST-6)
Location: HUTCHINSON
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A storm chaser measured a wind gust of 60 mph on his car anemometer west of Hutchinson.

Thunderstorm Wind in MCLEOD, MINNESOTA
From 20-SEP-14 15:45:00 to 20-SEP-14 15:48:00 (CST-6)
Location: HUTCHINSON
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Several large trees were snapped off or uprooted throughout the city of Hutchinson.  There was also a measured wind gust of 54 mph at the Hutchinson Airport.

Thunderstorm Wind in WRIGHT, MINNESOTA
From 20-SEP-14 16:00:00 to 20-SEP-14 16:00:00 (CST-6)
Location: WAVERLY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous large tree limbs were blown off near Waverly.

Thunderstorm Wind in NICOLLET, MINNESOTA
From 20-SEP-14 16:18:00 to 20-SEP-14 16:20:00 (CST-6)
Location: ST GEORGE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Large trees were blown down across Highway 21 north of New Ulm.

Thunderstorm Wind in MCLEOD, MINNESOTA
From 20-SEP-14 16:05:00 to 20-SEP-14 16:05:00 (CST-6)
Location: BISCAY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A large tree branch was blown off in the town of Biscay.

Thunderstorm Wind in CARVER, MINNESOTA
From 20-SEP-14 16:20:00 to 20-SEP-14 16:20:00 (CST-6)
Location: DAHLGREN
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A measured wind gust of 51 knots was reported south of Victoria. In addition, numerous large tree branches were blown down.

Thunderstorm Wind in BLUE EARTH, MINNESOTA
From 20-SEP-14 16:34:00 to 20-SEP-14 16:34:00 (CST-6)
Location: CAMBRIA
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A roof was blown off and power lines were down in the town of Cambria.

Hail in WASECA, MINNESOTA
From 20-SEP-14 16:45:00 to 20-SEP-14 16:46:00 (CST-6)
Location: WASECA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail was piled up in town, with some areas up to 6 inches deep in the town of Waseca.

Thunderstorm Wind in WATONWAN, MINNESOTA
From 20-SEP-14 16:45:00 to 20-SEP-14 16:45:00 (CST-6)
Location: MADELIA
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous trees and large branches were blown down in the town of Madelia.

Thunderstorm Wind in BLUE EARTH, MINNESOTA
From 20-SEP-14 16:40:00 to 20-SEP-14 16:40:00 (CST-6)
Location: LAKE CRYSTAL
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Power lines were blown down in Lake Crystal.

Thunderstorm Wind in BLUE EARTH, MINNESOTA
From 20-SEP-14 16:50:00 to 20-SEP-14 16:55:00 (CST-6)
Location: MANKATO
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees were blown down around the city of Mankato. There was also a measured wind gust of 51 mph at the Mankato Airport.

Hail in BLUE EARTH, MINNESOTA
From 20-SEP-14 16:50:00 to 20-SEP-14 16:50:00 (CST-6)
Location: MANKATO
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in STEELE, MINNESOTA
From 20-SEP-14 16:55:00 to 20-SEP-14 17:15:00 (CST-6)
Location: MERIDEN
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

There was a large swath of hail, mainly penny size or smaller, that moved from east of Waseca along the Steele, Waseca County line, southeast to near Blooming Prairie. There was damage to corn crops associated with the hail.

Thunderstorm Wind in BROWN, MINNESOTA
From 20-SEP-14 16:18:00 to 20-SEP-14 16:20:00 (CST-6)
Location: NEW ULM ARPT
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several large trees were blown down in the city of New Ulm.

Thunderstorm Wind in KANDIYOHI, MINNESOTA
From 20-SEP-14 15:05:00 to 20-SEP-14 15:05:00 (CST-6)
Location: ATWATER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A few trees were blown down near Diamond Lake.

Thunderstorm Wind in WASECA, MINNESOTA
From 20-SEP-14 16:40:00 to 20-SEP-14 16:45:00 (CST-6)
Location: WASECA
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Nearly 100 trees were blown down in the city of Waseca. It was also accompanied by large hail. In addition, an outdoor tent was blown down trapping approximately 30-40 people underneath the tent.