A strong short-wave trough pushed into the Northern Plains, with severe storms initiating over eastern Montana into northeast Wyoming. Severe thunderstorms eventually pushed into North Dakota, where very strong instability and deep layer shear were noted. There were five tornadoes.

Tornado in MORTON, NORTH DAKOTA
From 01-JUN-18 16:53:00 to 01-JUN-18 17:08:00 (CST-6)
Location: HEBRON
Tornado F-scale: EF0
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A tornado developed south of Hebron, and clipped the far eastern edge of Hebron, before it pushed through rural areas to the north-northeast. Along its path, it caused minor damage to trees in a shelter-belt. The minor tree damage corresponded to EF0. From that winds were estimated around 70 mph.

Tornado in MERCER, NORTH DAKOTA
From 01-JUN-18 17:25:00 to 01-JUN-18 17:28:00 (CST-6)
Location: GOLDEN VLY
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

The tornado remained over rural areas. No damage occurred and so the tornado was rated EF0.

Hail in STARK, NORTH DAKOTA
From 01-JUN-18 13:30:00 to 01-JUN-18 13:33:00 (MST-7)
Location: DICKINSON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Funnel Cloud in MCKENZIE, NORTH DAKOTA
From 01-JUN-18 14:29:00 to 01-JUN-18 14:32:00 (MST-7)
Location: GRASSY BUTTE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in MCKENZIE, NORTH DAKOTA
From 01-JUN-18 14:52:00 to 01-JUN-18 14:55:00 (MST-7)
Location: WATFORD CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in DUNN, NORTH DAKOTA
From 01-JUN-18 15:41:00 to 01-JUN-18 15:44:00 (MST-7)
Location: KILLDEER
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in GRANT, NORTH DAKOTA
From 01-JUN-18 15:47:00 to 01-JUN-18 15:52:00 (MST-7)
Location: ELGIN
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in GRANT, NORTH DAKOTA
From 01-JUN-18 15:30:00 to 01-JUN-18 15:33:00 (MST-7)
Location: CARSON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in GRANT, NORTH DAKOTA
From 01-JUN-18 16:20:00 to 01-JUN-18 16:24:00 (MST-7)
Location: LEITH
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in WILLIAMS, NORTH DAKOTA
From 01-JUN-18 16:40:00 to 01-JUN-18 16:42:00 (CST-6)
Location: WILLISTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MERCER, NORTH DAKOTA
From 01-JUN-18 17:00:00 to 01-JUN-18 17:03:00 (CST-6)
Location: BEULAH
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MCLEAN, NORTH DAKOTA
From 01-JUN-18 17:18:00 to 01-JUN-18 17:21:00 (CST-6)
Location: ROSEGLEN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in MORTON, NORTH DAKOTA
From 01-JUN-18 17:20:00 to 01-JUN-18 17:25:00 (CST-6)
Location: HEBRON
Magnitude: 61.00 EG
Property damage: 55.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A semi-truck flipped over on Interstate 94.

Thunderstorm Wind in MCLEAN, NORTH DAKOTA
From 01-JUN-18 17:39:00 to 01-JUN-18 17:42:00 (CST-6)
Location: GARRISON
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Hail in WARD, NORTH DAKOTA
From 01-JUN-18 17:49:00 to 01-JUN-18 17:52:00 (CST-6)
Location: MAKOTI
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MOUNTRAIL, NORTH DAKOTA
From 01-JUN-18 17:55:00 to 01-JUN-18 17:58:00 (CST-6)
Location: PLAZA
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in OLIVER, NORTH DAKOTA
From 01-JUN-18 18:30:00 to 01-JUN-18 18:33:00 (CST-6)
Location: HANNOVER
Magnitude: 52.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Public

Small trees were blown over.

Thunderstorm Wind in LOGAN, NORTH DAKOTA
From 01-JUN-18 19:25:00 to 01-JUN-18 19:35:00 (CST-6)
Location: BURNSTAD
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The strong winds combined with nickel-size hail to break some windows.

Thunderstorm Wind in STUTSMAN, NORTH DAKOTA
From 01-JUN-18 20:30:00 to 01-JUN-18 20:33:00 (CST-6)
Location: PINGREE
Magnitude: 61.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Medium size trees were uprooted.

Thunderstorm Wind in MORTON, NORTH DAKOTA
From 01-JUN-18 17:05:00 to 01-JUN-18 17:08:00 (CST-6)
Location: GLEN ULLIN
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A large sport-utility vehicle was hit broadside by the wind gust and pushed sideways.

Funnel Cloud in MCKENZIE, NORTH DAKOTA
From 01-JUN-18 16:10:00 to 01-JUN-18 16:13:00 (MST-7)
Location: CHARLSON
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Tornado in DUNN, NORTH DAKOTA
From 01-JUN-18 15:26:00 to 01-JUN-18 15:27:00 (MST-7)
Location: KILLDEER
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

This was the first of two tornadoes in Dunn County this day. This tornado remained in an open field.  No damage occurred and so it was rated EF0. A second tornado in Dunn County later this day was rated EF2.

Tornado in DUNN, NORTH DAKOTA
From 01-JUN-18 15:34:00 to 01-JUN-18 15:42:00 (MST-7)
Location: KILLDEER
Tornado F-scale: EF2
Property damage: 175.00K
Crop damage: 0.00K
Reported by: Emergency Manager

This was the second of two tornadoes in Dunn County this day. The earlier tornado hit nothing and so was rated EF0. This second tornado was rated EF2. It initially struck a mobile home shortly after it touched down, completely destroying the structure. Based on that damage the tornado at this location was EF2. From that EF2 rating the winds were estimated at 125 mph. No one was home at the time so there were no injuries or deaths at this location. The tornado then proceeded generally northward to a farmstead, where a stock trailer was flipped, a truck was pushed 200 yards through a fence, and an old out-building was completely destroyed. At the farm the damage corresponded to EF1. There were no injuries or deaths as all on the farm reached safety before the tornado struck. The tornado then continued to the north until it dissipated. The overall tornado rating is EF2.

Tornado in MCKENZIE, NORTH DAKOTA
From 01-JUN-18 15:55:00 to 01-JUN-18 15:56:00 (MST-7)
Location: MANDAREE
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The tornado remained in an open field. No damage occurred and so the tornado was rated EF0.