Thunderstorms formed along a frontal boundary over western North Dakota in the afternoon in an environment with extremely high instability. Initial storms that developed produced a tornado over Mountrail County. The severe threat then quickly shifted primarily towards large hail as the storms progressed east.

Hail in WARD, NORTH DAKOTA
From 20-JUL-16 16:23:00 to 20-JUL-16 16:26:00 (CST-6)
Location: BERTHOLD
Magnitude: 2.75 
Property damage: 100.00K
Crop damage: 50.00K
Reported by: Law Enforcement

Hail in WARD, NORTH DAKOTA
From 20-JUL-16 16:34:00 to 20-JUL-16 16:37:00 (CST-6)
Location: BURLINGTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in GRANT, NORTH DAKOTA
From 20-JUL-16 16:52:00 to 20-JUL-16 16:55:00 (MST-7)
Location: NEW LEIPZIG
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in GRANT, NORTH DAKOTA
From 20-JUL-16 17:10:00 to 20-JUL-16 17:13:00 (MST-7)
Location: ELGIN
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in GRANT, NORTH DAKOTA
From 20-JUL-16 17:29:00 to 20-JUL-16 17:33:00 (MST-7)
Location: NEW LEIPZIG
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in ROLETTE, NORTH DAKOTA
From 20-JUL-16 18:16:00 to 20-JUL-16 18:19:00 (CST-6)
Location: ST JOHN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public estimated thunderstorm wind gusts of 60 mph.

Hail in ROLETTE, NORTH DAKOTA
From 20-JUL-16 18:16:00 to 20-JUL-16 18:19:00 (CST-6)
Location: ST JOHN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MCHENRY, NORTH DAKOTA
From 20-JUL-16 18:20:00 to 20-JUL-16 18:24:00 (CST-6)
Location: GUTHRIE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in OLIVER, NORTH DAKOTA
From 20-JUL-16 18:50:00 to 20-JUL-16 18:53:00 (CST-6)
Location: HANNOVER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MERCER, NORTH DAKOTA
From 20-JUL-16 19:35:00 to 20-JUL-16 19:39:00 (CST-6)
Location: STANTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in PIERCE, NORTH DAKOTA
From 20-JUL-16 19:37:00 to 20-JUL-16 19:40:00 (CST-6)
Location: SELZ
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in OLIVER, NORTH DAKOTA
From 20-JUL-16 19:59:00 to 20-JUL-16 20:03:00 (CST-6)
Location: CENTER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in PIERCE, NORTH DAKOTA
From 20-JUL-16 20:00:00 to 20-JUL-16 20:04:00 (CST-6)
Location: SELZ
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in OLIVER, NORTH DAKOTA
From 20-JUL-16 20:10:00 to 20-JUL-16 20:13:00 (CST-6)
Location: CENTER
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in OLIVER, NORTH DAKOTA
From 20-JUL-16 20:23:00 to 20-JUL-16 20:26:00 (CST-6)
Location: CENTER
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SHERIDAN, NORTH DAKOTA
From 20-JUL-16 20:25:00 to 20-JUL-16 20:28:00 (CST-6)
Location: MCCLUSKY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in SHERIDAN, NORTH DAKOTA
From 20-JUL-16 20:32:00 to 20-JUL-16 20:36:00 (CST-6)
Location: MCCLUSKY
Magnitude: 2.50 
Property damage: 50.00K
Crop damage: 20.00K
Reported by: Trained Spotter

Hail in SHERIDAN, NORTH DAKOTA
From 20-JUL-16 20:32:00 to 20-JUL-16 20:36:00 (CST-6)
Location: MCCLUSKY
Magnitude: 2.50 
Property damage: 30.00K
Crop damage: 20.00K
Reported by: Trained Spotter

Thunderstorm Wind in FOSTER, NORTH DAKOTA
From 20-JUL-16 21:40:00 to 20-JUL-16 21:44:00 (CST-6)
Location: CARRINGTON ARPT
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Tornado in MOUNTRAIL, NORTH DAKOTA
From 20-JUL-16 15:42:00 to 20-JUL-16 15:46:00 (CST-6)
Location: PALERMO
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tornado touched down in a rural area south of Palermo and traveled nearly one mile. No damage, injuries, or fatalities were reported. No structures were impacted and so the tornado was rated EF-0.

Funnel Cloud in OLIVER, NORTH DAKOTA
From 20-JUL-16 20:12:00 to 20-JUL-16 20:15:00 (CST-6)
Location: HANNOVER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in WARD, NORTH DAKOTA
From 20-JUL-16 16:47:00 to 20-JUL-16 16:50:00 (CST-6)
Location: BURLINGTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MCHENRY, NORTH DAKOTA
From 20-JUL-16 17:56:00 to 20-JUL-16 17:59:00 (CST-6)
Location: DENBIGH
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in OLIVER, NORTH DAKOTA
From 20-JUL-16 20:35:00 to 20-JUL-16 20:39:00 (CST-6)
Location: CENTER
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MOUNTRAIL, NORTH DAKOTA
From 20-JUL-16 16:02:00 to 20-JUL-16 16:05:00 (CST-6)
Location: TAGUS
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter