A strong short-wave trough moved into an area of very high instability over the Northern Plains. Initially, one long-lived supercell thunderstorm developed over southwest North Dakota, and tracked east-southeast producing large hail. The largest hail was golf ball size, and fell over the communities of Elgin and Leith in Grant County. Late at night a line of severe thunderstorms producing damaging winds tracked eastward across southwest and south central North Dakota, which caused extensive damage to many structures. The strongest thunderstorm wind gust was 91 mph, and occurred near Moffit in Burleigh County.

Thunderstorm Wind in BURLEIGH, NORTH DAKOTA
From 03-JUL-18 04:14:00 to 03-JUL-18 04:17:00 (CST-6)
Location: (BIS)BISMARCK MUNI A
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Thunderstorm Wind in MORTON, NORTH DAKOTA
From 03-JUL-18 04:15:00 to 03-JUL-18 04:19:00 (CST-6)
Location: MANDAN MUNI ARPT
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Thunderstorm Wind in BURLEIGH, NORTH DAKOTA
From 03-JUL-18 04:18:00 to 03-JUL-18 04:21:00 (CST-6)
Location: BISMARCK
Magnitude: 56.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

A medium size tree blew over.

Thunderstorm Wind in KIDDER, NORTH DAKOTA
From 03-JUL-18 04:45:00 to 03-JUL-18 04:48:00 (CST-6)
Location: DAWSON
Magnitude: 61.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous large branches were snapped in the yard. Some trees were uprooted.

Thunderstorm Wind in BURLEIGH, NORTH DAKOTA
From 03-JUL-18 04:47:00 to 03-JUL-18 04:50:00 (CST-6)
Location: MOFFIT
Magnitude: 79.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in MCINTOSH, NORTH DAKOTA
From 03-JUL-18 05:00:00 to 03-JUL-18 05:04:00 (CST-6)
Location: DANZIG
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter estimated thunderstorm wind gusts of 60 mph.

Hail in DICKEY, NORTH DAKOTA
From 03-JUL-18 05:19:00 to 03-JUL-18 05:22:00 (CST-6)
Location: MERRICOURT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in STUTSMAN, NORTH DAKOTA
From 03-JUL-18 05:46:00 to 03-JUL-18 05:49:00 (CST-6)
Location: STREETER
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Hail in HETTINGER, NORTH DAKOTA
From 02-JUL-18 17:16:00 to 02-JUL-18 17:23:00 (MST-7)
Location: NEW ENGLAND
Magnitude: 1.25 
Property damage: 5.00K
Crop damage: 100.00K
Reported by: Public

Multiple crops were destroyed and many trees had leaves stripped.

Hail in GRANT, NORTH DAKOTA
From 02-JUL-18 18:35:00 to 02-JUL-18 18:43:00 (MST-7)
Location: ELGIN
Magnitude: 1.75 
Property damage: 250.00K
Crop damage: 50.00K
Reported by: Law Enforcement

Significant damage to vehicles and roofs occurred in the city of Elgin.

Hail in GRANT, NORTH DAKOTA
From 02-JUL-18 18:50:00 to 02-JUL-18 19:02:00 (MST-7)
Location: LEITH
Magnitude: 1.75 
Property damage: 75.00K
Crop damage: 50.00K
Reported by: Public

Large hail occurred for an extended period in the community of Leith, causing damage to homes and vehicles.

Thunderstorm Wind in MORTON, NORTH DAKOTA
From 03-JUL-18 03:21:00 to 03-JUL-18 03:24:00 (CST-6)
Location: ALMONT
Magnitude: 65.00 EG
Property damage: 35.00K
Crop damage: 0.00K
Reported by: Public

A garage had its roof completely torn off and broken into pieces. A garage door was also blown off.

Thunderstorm Wind in EMMONS, NORTH DAKOTA
From 03-JUL-18 04:50:00 to 03-JUL-18 04:58:00 (CST-6)
Location: WESTFIELD
Magnitude: 70.00 EG
Property damage: 90.00K
Crop damage: 0.00K
Reported by: Public

The Bakker School near Westfield had its roof torn off, including some rafters. Sections of the roof blew across the road. The roof appears to have been added onto the structure which may have originally had a flat roof. The interior of the school suffered water damage after the roof was torn off.

Thunderstorm Wind in EMMONS, NORTH DAKOTA
From 03-JUL-18 04:30:00 to 03-JUL-18 04:35:00 (CST-6)
Location: KINTYRE
Magnitude: 74.00 EG
Property damage: 300.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Widespread damage occurred in the Kintyre area. A farm house about one mile northeast of town was extensively damaged.  In the farmyard, three buildings sustained major damage with many broken trees. In town, many trees were damaged, with many evergreen trees snapped off about ten feet off the ground. Other trees were uprooted.

Thunderstorm Wind in MORTON, NORTH DAKOTA
From 03-JUL-18 03:25:00 to 03-JUL-18 03:28:00 (CST-6)
Location: ALMONT
Magnitude: 70.00 EG
Property damage: 150.00K
Crop damage: 0.00K
Reported by: Public

A large well-constructed pole barn was destroyed with multiple pieces of farm equipment inside.

Hail in HETTINGER, NORTH DAKOTA
From 02-JUL-18 17:10:00 to 02-JUL-18 17:13:00 (MST-7)
Location: NEW ENGLAND
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in HETTINGER, NORTH DAKOTA
From 02-JUL-18 17:35:00 to 02-JUL-18 17:39:00 (MST-7)
Location: REGENT
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in GOLDEN VALLEY, NORTH DAKOTA
From 02-JUL-18 23:15:00 to 02-JUL-18 23:18:00 (MST-7)
Location: BEACH
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in GOLDEN VALLEY, NORTH DAKOTA
From 02-JUL-18 23:30:00 to 02-JUL-18 23:33:00 (MST-7)
Location: SENTINEL BUTTE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Local fire department officials estimated thunderstorm wind gusts of 60 mph.

Thunderstorm Wind in BOWMAN, NORTH DAKOTA
From 03-JUL-18 00:25:00 to 03-JUL-18 00:28:00 (MST-7)
Location: BOWMAN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management estimated thunderstorm wind gusts of 60 mph.

Thunderstorm Wind in SLOPE, NORTH DAKOTA
From 03-JUL-18 00:30:00 to 03-JUL-18 00:34:00 (MST-7)
Location: AMIDON
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Hail in BOWMAN, NORTH DAKOTA
From 03-JUL-18 00:33:00 to 03-JUL-18 00:35:00 (MST-7)
Location: BOWMAN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in STARK, NORTH DAKOTA
From 03-JUL-18 00:58:00 to 03-JUL-18 01:02:00 (MST-7)
Location: (DIK)DICKINSON MUNI
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Thunderstorm Wind in ADAMS, NORTH DAKOTA
From 03-JUL-18 01:18:00 to 03-JUL-18 01:21:00 (MST-7)
Location: HETTINGER ARPT
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Thunderstorm Wind in HETTINGER, NORTH DAKOTA
From 03-JUL-18 01:22:00 to 03-JUL-18 01:24:00 (MST-7)
Location: MOTT
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in GRANT, NORTH DAKOTA
From 03-JUL-18 02:05:00 to 03-JUL-18 02:08:00 (MST-7)
Location: ELGIN MUNI ARPT
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter estimated thunderstorm wind gusts of 70 mph.

Thunderstorm Wind in GRANT, NORTH DAKOTA
From 03-JUL-18 02:23:00 to 03-JUL-18 02:25:00 (MST-7)
Location: LARK
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in MORTON, NORTH DAKOTA
From 03-JUL-18 02:55:00 to 03-JUL-18 02:58:00 (CST-6)
Location: GLEN ULLIN
Magnitude: 58.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Thunderstorm Wind in MORTON, NORTH DAKOTA
From 03-JUL-18 03:20:00 to 03-JUL-18 03:23:00 (CST-6)
Location: ALMONT
Magnitude: 64.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in MORTON, NORTH DAKOTA
From 03-JUL-18 03:23:00 to 03-JUL-18 03:26:00 (CST-6)
Location: JUDSON
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in SIOUX, NORTH DAKOTA
From 03-JUL-18 03:25:00 to 03-JUL-18 03:28:00 (MST-7)
Location: SELFRIDGE
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in MORTON, NORTH DAKOTA
From 03-JUL-18 03:33:00 to 03-JUL-18 03:36:00 (CST-6)
Location: NEW SALEM
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in MORTON, NORTH DAKOTA
From 03-JUL-18 04:00:00 to 03-JUL-18 04:04:00 (CST-6)
Location: MANDAN
Magnitude: 56.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

A tree blew over.