Severe thunderstorms that rolled across Minnesota produced damaging winds and hail across multiple counties. Several trees were blown down, damaging power lines and in one case, a home. The storms also contained hail, with the largest the size of golf balls.
One thunderstorm that developed in Ontario produced a long-tracked tornado that tracked from near McEwen Lake in the wilderness of Quetico Provincial Park for about 7.6 miles and another 0.9 miles into the Boundary Waters Canoe Wilderness Area of northern Minnesota before dissipating. Not only is there satellite evidence of the tornado's path through the wilderness, but Environment Canada conducted a storm survey of the damage. The Canadians rated the damage as high as EF-2 in Canada, and the damage on the short segment into Minnesota as EF-1. The tornado lasted about 17 minutes from its beginning to Canada to its end in Minnesota.

Hail in ST. LOUIS, MINNESOTA
From 06-JUL-17 08:17:00 to 06-JUL-17 08:19:00 (CST-6)
Location: ELY ARPT
Magnitude: 0.75 
Reported by: Trained Spotter

Hail fell for two minutes.

Thunderstorm Wind in ST. LOUIS, MINNESOTA
From 06-JUL-17 05:05:00 to 06-JUL-17 05:05:00 (CST-6)
Location: HUNTERS PARK
Magnitude: 52.00 EG
Reported by: State Official

Several trees were blown down on North 47th East.

Thunderstorm Wind in ITASCA, MINNESOTA
From 06-JUL-17 03:52:00 to 06-JUL-17 03:52:00 (CST-6)
Location: BIGFORK
Magnitude: 56.00 EG
Reported by: Public

A home was damaged when a large uprooted spruce tree fell on it.

Hail in PINE, MINNESOTA
From 06-JUL-17 03:45:00 to 06-JUL-17 03:45:00 (CST-6)
Location: HINCKLEY
Magnitude: 1.00 
Reported by: Trained Spotter

Thunderstorm Wind in ST. LOUIS, MINNESOTA
From 06-JUL-17 04:40:00 to 06-JUL-17 04:40:00 (CST-6)
Location: ENDION
Magnitude: 60.00 EG
Reported by: Trained Spotter

A tree was blown down and took down a power line.

Thunderstorm Wind in ST. LOUIS, MINNESOTA
From 06-JUL-17 04:37:00 to 06-JUL-17 04:37:00 (CST-6)
Location: DULUTH
Magnitude: 56.00 EG
Reported by: Broadcast Media

A large tree was snapped off at its base on North 13th Avenue East.

Hail in CARLTON, MINNESOTA
From 06-JUL-17 00:00:00 to 06-JUL-17 00:00:00 (CST-6)
Location: KETTLE RIVER
Magnitude: 1.50 
Reported by: Trained Spotter

Hail in AITKIN, MINNESOTA
From 06-JUL-17 00:30:00 to 06-JUL-17 00:30:00 (CST-6)
Location: MC GRATH
Magnitude: 1.75 
Property damage: 8.00K
Reported by: Trained Spotter

A car was so damaged by the hail that it was declared totaled.

Thunderstorm Wind in ITASCA, MINNESOTA
From 06-JUL-17 03:30:00 to 06-JUL-17 03:30:00 (CST-6)
Location: GRAND RAPIDS ARPT
Magnitude: 50.00 EG
Reported by: Public

A six inch diameter tree was blown down.

Hail in CARLTON, MINNESOTA
From 06-JUL-17 00:30:00 to 06-JUL-17 00:30:00 (CST-6)
Location: MOOSE LAKE
Magnitude: 1.00 
Reported by: Public

Thunderstorm Wind in CASS, MINNESOTA
From 06-JUL-17 03:04:00 to 06-JUL-17 03:04:00 (CST-6)
Location: REMER MUNI ARPT
Magnitude: 52.00 EG
Reported by: Trained Spotter

An eight inch diameter tree was blown down on Highway 6.

Thunderstorm Wind in AITKIN, MINNESOTA
From 06-JUL-17 03:23:00 to 06-JUL-17 03:23:00 (CST-6)
Location: HILL CITY
Magnitude: 50.00 EG
Reported by: State Official

A tree was blown down on Highway 200.

Hail in PINE, MINNESOTA
From 06-JUL-17 03:32:00 to 06-JUL-17 03:32:00 (CST-6)
Location: FINLAYSON
Magnitude: 1.00 
Reported by: Trained Spotter

Thunderstorm Wind in ST. LOUIS, MINNESOTA
From 06-JUL-17 04:23:00 to 06-JUL-17 04:23:00 (CST-6)
Location: TWIG
Magnitude: 52.00 EG
Reported by: State Official

A large tree that was blown down was blocking a road.

Thunderstorm Wind in ST. LOUIS, MINNESOTA
From 06-JUL-17 04:37:00 to 06-JUL-17 04:37:00 (CST-6)
Location: DULUTH
Magnitude: 52.00 EG
Reported by: State Official

Several trees were blown down on East 9th street and 9th Avenue.