The afternoon of Tuesday, May 29th, thunderstorms began to develop across southwest Minnesota, and move northward. Most of the storms were sub-severe with occasional gusts of 40 to 50 mph noted on airport ASOS/AWOS sites. Other thunderstorms began to develop across south central Minnesota and moved northward toward the Twin Cities area.
By the mid to late afternoon, temperatures rose into the 90s with CAPE values of 1500-2000 J/Kg. Due to weak wind shear, most of the storms were outflow dominant, but occasional severe wind gusts occurred with the stronger cores. Two storms produced significant wind damage near Geneva, north of Albert Lea, Minnesota, and Hutchinson, Minnesota. A turkey barn was destroyed near Geneva, and three people were injured but recovered from their injuries. Around Hutchinson, there were numerous reports of downed trees and power lines. Some of the trees caused damage to homes.  The local emergency manager in McLeod County determined that there were about 5-6 houses in Hutchinson that received structural damage from trees.
In addition, McLeod County declared a state of emergency on May 30, 2018 as a result of these high winds. An initial damage assessment was conducted and determined that there was about $54,000 in estimated public assistance damages.
Other storms produced an occasional hail stone up to quarter size. However, most of the storms were only producing dime to nickel size hail with wind gusts of 40 to 50 mph.

Hail in MCLEOD, MINNESOTA
From 29-MAY-18 14:15:00 to 29-MAY-18 14:15:00 (CST-6)
Location: HUTCHINSON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in TODD, MINNESOTA
From 29-MAY-18 14:25:00 to 29-MAY-18 14:25:00 (CST-6)
Location: BROWERVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ANOKA, MINNESOTA
From 29-MAY-18 14:26:00 to 29-MAY-18 14:26:00 (CST-6)
Location: ST FRANCIS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MCLEOD, MINNESOTA
From 29-MAY-18 14:35:00 to 29-MAY-18 14:35:00 (CST-6)
Location: SUMTER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in ISANTI, MINNESOTA
From 29-MAY-18 14:40:00 to 29-MAY-18 14:40:00 (CST-6)
Location: OXLIP
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SHERBURNE, MINNESOTA
From 29-MAY-18 15:30:00 to 29-MAY-18 15:30:00 (CST-6)
Location: BECKER
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in MILLE LACS, MINNESOTA
From 29-MAY-18 15:42:00 to 29-MAY-18 15:45:00 (CST-6)
Location: ISLE
Magnitude: 56.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The local emergency manager reported that several large 100 year old trees were blown down along the 3000 block of View Point Road, in Isle, Minnesota. One home was severely damaged by a tree, and another smaller building was damaged.

Thunderstorm Wind in WRIGHT, MINNESOTA
From 29-MAY-18 14:35:00 to 29-MAY-18 14:37:00 (CST-6)
Location: STOCKHOLM
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A farmer reported significant damage associated with a downburst southwest of Stockholm, Minnesota. The farm was located near the intersection of County Road 30 SW and County Road 1 SW. The farmer lost approximately 15 trees on his farm.

Hail in MORRISON, MINNESOTA
From 29-MAY-18 15:50:00 to 29-MAY-18 15:50:00 (CST-6)
Location: PIERZ
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Thunderstorm Wind in MCLEOD, MINNESOTA
From 29-MAY-18 14:15:00 to 29-MAY-18 14:15:00 (CST-6)
Location: HUTCHINSON ARPT
Magnitude: 60.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Thunderstorm Wind in KANABEC, MINNESOTA
From 29-MAY-18 15:05:00 to 29-MAY-18 15:05:00 (CST-6)
Location: OGILVIE
Magnitude: 52.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Trained Spotter

Several pieces of a metal shed were blown down.

Thunderstorm Wind in FREEBORN, MINNESOTA
From 29-MAY-18 15:04:00 to 29-MAY-18 15:08:00 (CST-6)
Location: GENEVA
Magnitude: 70.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A NWS storm survey indicated that a severe downburst wind, with an estimated wind of 80 mph, occurred from near the intersection of 310th Street, and 820th Avenue,
north-northeast for approximately one mile. Several trees were uprooted, with a trailer and a turkey barn that were destroyed near the end of the path. Three injuries occurred, but were not life threatening. Other trees and power lines were blown down in the city of Geneva which is likely associated with another downburst around the same time.

Hail in REDWOOD, MINNESOTA
From 29-MAY-18 12:32:00 to 29-MAY-18 12:32:00 (CST-6)
Location: VESTA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in YELLOW MEDICINE, MINNESOTA
From 29-MAY-18 13:05:00 to 29-MAY-18 13:05:00 (CST-6)
Location: ECHO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in STEARNS, MINNESOTA
From 29-MAY-18 15:28:00 to 29-MAY-18 15:28:00 (CST-6)
Location: ST AUGUSTA
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in MORRISON, MINNESOTA
From 29-MAY-18 15:50:00 to 29-MAY-18 15:50:00 (CST-6)
Location: PIERZ
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Thunderstorm Wind in MCLEOD, MINNESOTA
From 29-MAY-18 14:15:00 to 29-MAY-18 14:20:00 (CST-6)
Location: HUTCHINSON ARPT
Magnitude: 61.00 EG
Property damage: 54.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The local emergency manager conducted a survey of the damage that occurred in Hutchinson, and areas to the south of town. There was a semi that was blown over on Hwy 15 about 2 miles south of Hutchinson. There were also about 5 power poles damaged in this area as well. There was minor damage to a shed at the McLeod County Fairgrounds, on the south side of Hutchinson. Several trees were snapped, or uprooted.  The main concentrated area of damage was in the south central part of Hutchinson. There were about 5-6 houses in Hutchinson that received structural damage from trees.
McLeod County declared a state of emergency on May 30, 2018 as a result of these high winds. An initial damage assessment was conducted and determined that there was about $54,000 in estimated public assistance damages.

Hail in DOUGLAS, MINNESOTA
From 29-MAY-18 13:30:00 to 29-MAY-18 13:30:00 (CST-6)
Location: ALEXANDRIA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in DAKOTA, MINNESOTA
From 29-MAY-18 13:35:00 to 29-MAY-18 13:35:00 (CST-6)
Location: EAGAN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DOUGLAS, MINNESOTA
From 29-MAY-18 13:35:00 to 29-MAY-18 13:35:00 (CST-6)
Location: MILTONA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in ISANTI, MINNESOTA
From 29-MAY-18 15:05:00 to 29-MAY-18 15:05:00 (CST-6)
Location: BRADFORD
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Sporadic trees and power lines were blown down around Bradford, Minnesota.

Thunderstorm Wind in MCLEOD, MINNESOTA
From 29-MAY-18 15:18:00 to 29-MAY-18 15:18:00 (CST-6)
Location: GLENCOE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several large trees, up to 12 inches in diameter, and a few power lines were either snapped or blown down southwest of Glencoe.

Hail in DAKOTA, MINNESOTA
From 29-MAY-18 13:27:00 to 29-MAY-18 13:40:00 (CST-6)
Location: EAGAN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The observer reported hail for approximately 13 minutes, with the largest hail stone of quarter size.

Hail in DAKOTA, MINNESOTA
From 29-MAY-18 13:40:00 to 29-MAY-18 13:40:00 (CST-6)
Location: EAGAN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in SCOTT, MINNESOTA
From 29-MAY-18 16:38:00 to 29-MAY-18 16:40:00 (CST-6)
Location: ELKO NEW MARKET
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Local law enforcement officials reported large limbs blown down near the intersection of 267th Street East, and Pillsbury Road. This is approximately two miles east of Elko/New Market, just east of I-35.