A cold front moving into a very unstable air mass combined with an approaching upper level trough to produce thunderstorms over parts of western and central North Dakota.  Severe thunderstorms developed, with some storms producing very large hail and very strong wind gusts, resulting in property damage. The largest hail of three inches in diameter was reported in Divide County. The strongest wind gusts of 85 mph were reported in McKenzie County.

Thunderstorm Wind in MOUNTRAIL, NORTH DAKOTA
From 04-JUL-15 16:57:00 to 04-JUL-15 16:59:00 (CST-6)
Location: STANLEY
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DIVIDE, NORTH DAKOTA
From 04-JUL-15 14:15:00 to 04-JUL-15 14:19:00 (CST-6)
Location: AMBROSE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DIVIDE, NORTH DAKOTA
From 04-JUL-15 14:35:00 to 04-JUL-15 14:38:00 (CST-6)
Location: CROSBY
Magnitude: 3.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DIVIDE, NORTH DAKOTA
From 04-JUL-15 14:47:00 to 04-JUL-15 14:50:00 (CST-6)
Location: CROSBY
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DIVIDE, NORTH DAKOTA
From 04-JUL-15 14:48:00 to 04-JUL-15 14:55:00 (CST-6)
Location: NOONAN
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in WILLIAMS, NORTH DAKOTA
From 04-JUL-15 15:35:00 to 04-JUL-15 15:40:00 (CST-6)
Location: RAY
Magnitude: 56.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Public

Wind speed estimate is based off of widespread tree damage around Ray.

Thunderstorm Wind in MCKENZIE, NORTH DAKOTA
From 04-JUL-15 16:15:00 to 04-JUL-15 16:18:00 (MST-7)
Location: MANDAREE
Magnitude: 74.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Law Enforcement

An off-duty police officer estimated the wind speed.  The officer was in his vehicle which was blown off the road.

Hail in RENVILLE, NORTH DAKOTA
From 04-JUL-15 16:41:00 to 04-JUL-15 16:51:00 (CST-6)
Location: TOLLEY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in RENVILLE, NORTH DAKOTA
From 04-JUL-15 16:45:00 to 04-JUL-15 16:55:00 (CST-6)
Location: TOLLEY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in RENVILLE, NORTH DAKOTA
From 04-JUL-15 17:51:00 to 04-JUL-15 17:53:00 (CST-6)
Location: TOLLEY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in MOUNTRAIL, NORTH DAKOTA
From 04-JUL-15 18:00:00 to 04-JUL-15 18:07:00 (CST-6)
Location: PARSHALL ARPT
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm wind gust speed was estimated by a member of the public.

Hail in WELLS, NORTH DAKOTA
From 04-JUL-15 22:00:00 to 04-JUL-15 22:03:00 (CST-6)
Location: BREMEN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in FOSTER, NORTH DAKOTA
From 04-JUL-15 23:25:00 to 04-JUL-15 23:28:00 (CST-6)
Location: BARLOW
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DIVIDE, NORTH DAKOTA
From 04-JUL-15 14:35:00 to 04-JUL-15 14:42:00 (CST-6)
Location: CROSBY
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DIVIDE, NORTH DAKOTA
From 04-JUL-15 14:35:00 to 04-JUL-15 14:45:00 (CST-6)
Location: CROSBY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm Wind in MCKENZIE, NORTH DAKOTA
From 04-JUL-15 16:16:00 to 04-JUL-15 16:19:00 (MST-7)
Location: CHARLSON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The thunderstorm wind gusts were estimated by a trained spotter located west of Four Bears Casino and Lodge.

Thunderstorm Wind in WARD, NORTH DAKOTA
From 04-JUL-15 18:00:00 to 04-JUL-15 18:05:00 (CST-6)
Location: NIOBE
Magnitude: 65.00 EG
Property damage: 150.00K
Crop damage: 50.00K
Reported by: Newspaper

Large evergreen trees were snapped.  Two roofs were torn from out-buildings.  Three empty grain bins were tipped.  Wind speed was estimated from the damage.