Around the noon hour of Thursday, June 28th, an east to west stationary boundary was located across southern North Dakota into central Minnesota. It was warm and muggy, with temperatures in the 80s and dew points in the low 70s along the boundary. Thunderstorms tracking from west to east along highway 2 became severe over the Grand Forks-East Grand Forks area just after the noon hour CDT, dropping heavy rain and large hail. During the afternoon, other storms flared up, mainly between highways 2 and 200.

Hail in POLK, MINNESOTA
From 28-JUN-18 11:45:00 to 28-JUN-18 11:45:00 (CST-6)
Location: EAST GRAND FORKS
Magnitude: 1.00 
Reported by: Social Media

Nickel to quarter sized hail fell.

Hail in POLK, MINNESOTA
From 28-JUN-18 12:00:00 to 28-JUN-18 12:00:00 (CST-6)
Location: EAST GRAND FORKS
Magnitude: 1.25 
Reported by: Social Media

Hail in POLK, MINNESOTA
From 28-JUN-18 12:00:00 to 28-JUN-18 12:00:00 (CST-6)
Location: EAST GRAND FORKS
Magnitude: 0.88 
Reported by: Social Media

Hail in POLK, MINNESOTA
From 28-JUN-18 12:40:00 to 28-JUN-18 12:40:00 (CST-6)
Location: ANGLIM
Magnitude: 1.00 
Reported by: Trained Spotter

Thunderstorm Wind in POLK, MINNESOTA
From 28-JUN-18 12:50:00 to 28-JUN-18 12:52:00 (CST-6)
Location: CLIMAX
Magnitude: 50.00 EG
Reported by: Public

Tree damage was reported in the town of Climax. A few minutes of pea to penny sized hail also fell.

Hail in BELTRAMI, MINNESOTA
From 28-JUN-18 13:20:00 to 28-JUN-18 13:20:00 (CST-6)
Location: FARLEY
Magnitude: 0.75 
Reported by: State Official

Hail in BELTRAMI, MINNESOTA
From 28-JUN-18 13:25:00 to 28-JUN-18 13:27:00 (CST-6)
Location: LAVINIA
Magnitude: 1.50 
Reported by: Social Media

Hail in BELTRAMI, MINNESOTA
From 28-JUN-18 13:30:00 to 28-JUN-18 13:30:00 (CST-6)
Location: TURTLE RIVER
Magnitude: 1.00 
Reported by: Trained Spotter

Very heavy rain also fell.

Hail in POLK, MINNESOTA
From 28-JUN-18 13:40:00 to 28-JUN-18 13:40:00 (CST-6)
Location: FERTILE
Magnitude: 1.00 
Reported by: Public

Funnel Cloud in NORMAN, MINNESOTA
From 28-JUN-18 13:44:00 to 28-JUN-18 13:44:00 (CST-6)
Location: SUNDAHL
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A brief funnel cloud was reported.

Hail in BELTRAMI, MINNESOTA
From 28-JUN-18 13:45:00 to 28-JUN-18 13:45:00 (CST-6)
Location: BIRCHMONT
Magnitude: 0.75 
Reported by: Social Media

Hail in POLK, MINNESOTA
From 28-JUN-18 13:45:00 to 28-JUN-18 13:45:00 (CST-6)
Location: TRAIL
Magnitude: 1.00 
Reported by: Public

Strong winds accompanied the hail.

Tornado in NORMAN, MINNESOTA
From 28-JUN-18 13:51:00 to 28-JUN-18 13:54:00 (CST-6)
Location: RANUM
Tornado F-scale: EF1
Reported by: NWS Storm Survey

A large tree was snapped and fell to the north, while a nearby power pole was snapped and fell to the east. No field scarring was noted. Peak winds were estimated at 105 mph.

Hail in CLEARWATER, MINNESOTA
From 28-JUN-18 14:30:00 to 28-JUN-18 14:30:00 (CST-6)
Location: BERNER
Magnitude: 1.00 
Reported by: Trained Spotter

The hail fell along highway 1, off the southwest edge of Lower Red Lake.

Hail in MAHNOMEN, MINNESOTA
From 28-JUN-18 14:45:00 to 28-JUN-18 14:45:00 (CST-6)
Location: MAHNOMEN
Magnitude: 0.75 
Reported by: Trained Spotter