Severe thunderstorms moved across portions of northeast Minnesota. The storms' winds blew down many trees and produced hail stones that ranged from dime size to tennis ball size.

Thunderstorm Wind in CROW WING, MINNESOTA
From 17-JUL-17 17:10:00 to 17-JUL-17 17:10:00 (CST-6)
Location: NISSWA
Magnitude: 52.00 EG
Reported by: Trained Spotter

A six inch diameter tree was blown down.

Thunderstorm Wind in CASS, MINNESOTA
From 17-JUL-17 15:55:00 to 17-JUL-17 15:55:00 (CST-6)
Location: LEADER
Magnitude: 52.00 EG
Reported by: Public

Trees were blown down across Highway 64.

Thunderstorm Wind in CASS, MINNESOTA
From 17-JUL-17 16:05:00 to 17-JUL-17 16:05:00 (CST-6)
Location: REMER MUNI ARPT
Magnitude: 52.00 EG
Reported by: Trained Spotter

A box elder tree measuring 12 to 16 inches in diameter had a portion of its trunk snapped off about 8 to 10 feet off the ground.

Thunderstorm Wind in CROW WING, MINNESOTA
From 17-JUL-17 16:18:00 to 17-JUL-17 16:18:00 (CST-6)
Location: PEQUOT LAKES ARPT
Magnitude: 52.00 EG
Reported by: Public

A few 6 inch diameter trees were snapped a couple feet off the ground.

Thunderstorm Wind in CROW WING, MINNESOTA
From 17-JUL-17 16:23:00 to 17-JUL-17 16:23:00 (CST-6)
Location: BRAINERD
Magnitude: 56.00 MG
Reported by: Trained Spotter

Thunderstorm Wind in CROW WING, MINNESOTA
From 17-JUL-17 16:30:00 to 17-JUL-17 16:30:00 (CST-6)
Location: WOODROW
Magnitude: 52.00 EG
Reported by: Trained Spotter

A few trees were blown down on Nelson and Tower Roads.

Thunderstorm Wind in CASS, MINNESOTA
From 17-JUL-17 16:33:00 to 17-JUL-17 16:33:00 (CST-6)
Location: EAST GULL LAKE
Magnitude: 56.00 EG
Reported by: Public

A dock was damaged by when it was slammed by wind-whipped boats on the western end of Gull Lake.

Thunderstorm Wind in CROW WING, MINNESOTA
From 17-JUL-17 16:37:00 to 17-JUL-17 16:37:00 (CST-6)
Location: CROSBY
Magnitude: 56.00 EG
Reported by: Law Enforcement

Several trees were blown down in the town of Crosby.

Thunderstorm Wind in ST. LOUIS, MINNESOTA
From 17-JUL-17 18:59:00 to 17-JUL-17 18:59:00 (CST-6)
Location: MARKHAM
Magnitude: 52.00 EG
Reported by: Park/Forest Service

A few 6 inch diameter trees were blown down at the Whiteface Reservoir campground.

Thunderstorm Wind in AITKIN, MINNESOTA
From 17-JUL-17 17:09:00 to 17-JUL-17 17:09:00 (CST-6)
Location: LIBBY
Magnitude: 52.00 EG
Reported by: Trained Spotter

A few trees were blown down on the north end of Big Sandy Lake.

Thunderstorm Wind in CROW WING, MINNESOTA
From 17-JUL-17 17:12:00 to 17-JUL-17 17:12:00 (CST-6)
Location: PINE CENTER
Magnitude: 52.00 MG
Reported by: Trained Spotter

Hail in ST. LOUIS, MINNESOTA
From 17-JUL-17 17:45:00 to 17-JUL-17 17:45:00 (CST-6)
Location: BIWABIK
Magnitude: 1.75 
Reported by: Broadcast Media

Hail in ST. LOUIS, MINNESOTA
From 17-JUL-17 17:53:00 to 17-JUL-17 17:53:00 (CST-6)
Location: BIWABIK
Magnitude: 1.00 
Reported by: Law Enforcement

Hail in ST. LOUIS, MINNESOTA
From 17-JUL-17 17:59:00 to 17-JUL-17 17:59:00 (CST-6)
Location: PARKVILLE
Magnitude: 2.50 
Reported by: Trained Spotter

Hail in ST. LOUIS, MINNESOTA
From 17-JUL-17 18:00:00 to 17-JUL-17 18:00:00 (CST-6)
Location: PARKVILLE
Magnitude: 1.25 
Reported by: Public

Hail in ST. LOUIS, MINNESOTA
From 17-JUL-17 18:03:00 to 17-JUL-17 18:03:00 (CST-6)
Location: FRASER
Magnitude: 0.75 
Reported by: Public

Thunderstorm Wind in CARLTON, MINNESOTA
From 17-JUL-17 18:05:00 to 17-JUL-17 18:05:00 (CST-6)
Location: MOOSE LAKE MUNI ARPT
Magnitude: 52.00 MG
Reported by: Trained Spotter

Thunderstorm Wind in PINE, MINNESOTA
From 17-JUL-17 18:05:00 to 17-JUL-17 18:05:00 (CST-6)
Location: STURGEON LAKE
Magnitude: 52.00 MG
Reported by: Trained Spotter

Thunderstorm Wind in PINE, MINNESOTA
From 17-JUL-17 18:25:00 to 17-JUL-17 18:25:00 (CST-6)
Location: HINCKLEY
Magnitude: 56.00 EG
Reported by: Trained Spotter

A few trees were either blown down or their trunks were snapped aloft. The largest tree affected was a 26 inch diameter elm tree snapped 8 feet off the ground.

Hail in ITASCA, MINNESOTA
From 17-JUL-17 17:40:00 to 17-JUL-17 17:40:00 (CST-6)
Location: KEEWATIN
Magnitude: 0.75 
Reported by: Amateur Radio