A very strong short wave approached the region while very strong instability and shear were noted across much of western and central North Dakota. Storms initially produced large hail, particularly over Bowman County where hail up to baseball size was reported. Thunderstorms later in the evening became prolific straight line wind producers. The strongest winds were reported in Burleigh County, where winds blew up to 90 mph.  Extensive tree and power line damage with some structural damage was reported in the city of Bismarck and surrounding rural areas. Power outages lasted up to 72 hours.

Thunderstorm Wind in MORTON, NORTH DAKOTA
From 19-JUN-15 19:53:00 to 19-JUN-15 19:55:00 (CST-6)
Location: MANDAN
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in BURLEIGH, NORTH DAKOTA
From 19-JUN-15 19:49:00 to 19-JUN-15 19:51:00 (CST-6)
Location: BALDWIN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Strong wind gusts estimated by amateur radio operator.

Thunderstorm Wind in MORTON, NORTH DAKOTA
From 19-JUN-15 20:09:00 to 19-JUN-15 20:11:00 (CST-6)
Location: MANDAN
Magnitude: 66.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Thunderstorm Wind in BURLEIGH, NORTH DAKOTA
From 19-JUN-15 20:47:00 to 19-JUN-15 20:49:00 (CST-6)
Location: MOFFIT
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in BURLEIGH, NORTH DAKOTA
From 19-JUN-15 20:10:00 to 19-JUN-15 20:12:00 (CST-6)
Location: (BIS)BISMARCK MUNI A
Magnitude: 66.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in MCKENZIE, NORTH DAKOTA
From 19-JUN-15 16:49:00 to 19-JUN-15 16:51:00 (MST-7)
Location: WATFORD CITY
Magnitude: 67.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in DUNN, NORTH DAKOTA
From 19-JUN-15 16:55:00 to 19-JUN-15 16:57:00 (MST-7)
Location: KILLDEER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A power outage was reported with the strong wind gusts.

Thunderstorm Wind in STARK, NORTH DAKOTA
From 19-JUN-15 17:40:00 to 19-JUN-15 17:43:00 (MST-7)
Location: DICKINSON
Magnitude: 56.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Tree limbs were downed as a result of the strong wind gusts.

Thunderstorm Wind in MORTON, NORTH DAKOTA
From 19-JUN-15 19:54:00 to 19-JUN-15 19:56:00 (CST-6)
Location: MANDAN
Magnitude: 70.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Many branches were broken by the strong wind gusts.

Thunderstorm Wind in MORTON, NORTH DAKOTA
From 19-JUN-15 20:10:00 to 19-JUN-15 20:12:00 (CST-6)
Location: MANDAN
Magnitude: 66.00 MG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Parts of a roof were torn off of a group home.

Thunderstorm Wind in BURLEIGH, NORTH DAKOTA
From 19-JUN-15 20:01:00 to 19-JUN-15 20:05:00 (CST-6)
Location: (BIS)BISMARCK MUNI A
Magnitude: 78.00 EG
Property damage: 350.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Very strong thunderstorm winds were reported near the city of Lincoln.  A camper rolled out of a yard.  A stack of large hay bales collapsed.  Garage doors buckled. Trees were uprooted and others snapped and there was a lot of damage to outside lawn furniture and children's play sets. Power lines were downed.

Thunderstorm Wind in EMMONS, NORTH DAKOTA
From 19-JUN-15 20:35:00 to 19-JUN-15 20:38:00 (CST-6)
Location: HAZELTON
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Lawn furniture was damaged.

Thunderstorm Wind in BURLEIGH, NORTH DAKOTA
From 19-JUN-15 20:03:00 to 19-JUN-15 20:10:00 (CST-6)
Location: (BIS)BISMARCK MUNI A
Magnitude: 71.00 MG
Property damage: 1.00M
Crop damage: 0.00K
Reported by: ASOS

Trees and power poles were extensively damaged, especially just east and north of the downtown area. Power outages lasted three days in some areas. A roof was torn off a building along Broadway Avenue. A small plane flipped over on the north side of the Bismarck Municipal Airport.

Hail in MCKENZIE, NORTH DAKOTA
From 19-JUN-15 15:25:00 to 19-JUN-15 15:27:00 (MST-7)
Location: EAST FAIRVIEW
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BOWMAN, NORTH DAKOTA
From 19-JUN-15 17:13:00 to 19-JUN-15 17:14:00 (MST-7)
Location: RHAME
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in MORTON, NORTH DAKOTA
From 19-JUN-15 19:25:00 to 19-JUN-15 19:27:00 (CST-6)
Location: NEW SALEM
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Strong thunderstorm wind gusts were reported in New Salem.

Thunderstorm Wind in GOLDEN VALLEY, NORTH DAKOTA
From 19-JUN-15 16:30:00 to 19-JUN-15 16:34:00 (MST-7)
Location: BEACH
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Hail in BOWMAN, NORTH DAKOTA
From 19-JUN-15 16:48:00 to 19-JUN-15 16:51:00 (MST-7)
Location: RHAME
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BOWMAN, NORTH DAKOTA
From 19-JUN-15 16:50:00 to 19-JUN-15 16:52:00 (MST-7)
Location: RHAME
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm Wind in MORTON, NORTH DAKOTA
From 19-JUN-15 19:40:00 to 19-JUN-15 19:43:00 (CST-6)
Location: MANDAN
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

An amateur radio operator reported the very strong thunderstorm wind gusts.

Thunderstorm Wind in MORTON, NORTH DAKOTA
From 19-JUN-15 19:45:00 to 19-JUN-15 19:48:00 (CST-6)
Location: SWEET BRIAR
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The strong wind gusts combined with heavy rain to reduce visibility to around 10 feet.

Thunderstorm Wind in BURLEIGH, NORTH DAKOTA
From 19-JUN-15 20:04:00 to 19-JUN-15 20:06:00 (CST-6)
Location: BISMARCK
Magnitude: 69.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet