A cold front pushing through the region produced some severe thunderstorms that caused some damage as it moved eastward towards the North Dakota border. The most significant damage was in Richland County from Highway 201 from Girard eastward to Highway 16.

Thunderstorm Wind in RICHLAND, MONTANA
From 26-JUN-12 16:00:00 to 26-JUN-12 16:00:00 (MST-7)
Location: FAIRVIEW
Magnitude: 61.00 EG
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Six power poles and lines were snapped and damaged.

Thunderstorm Wind in RICHLAND, MONTANA
From 26-JUN-12 16:00:00 to 26-JUN-12 16:15:00 (MST-7)
Location: FAIRVIEW
Magnitude: 64.00 MG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A total of 21 wooden power poles over a 2.1 mile stretch were snapped off at the bases with an additional two leaning enough to need replacement.  A 4000 bushel grain bin was tipped over and an open steel shed had the roof blown off and thrown 150 yards to the north.  The measured wind gust was from a Richland County agrimet station right in the area of the poles that were down.

Thunderstorm Wind in DAWSON, MONTANA
From 26-JUN-12 15:15:00 to 26-JUN-12 15:15:00 (MST-7)
Location: GLENDIVE
Magnitude: 48.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A portion of a roof in downtown Glendive was torn off.  The 30 foot by 30 foot section of roofing was blown into the building next door.  The highest measured winds at the Glendive Airport were from the south-southwest at 28 mph gusting to 38 mph, a direction this area doesn't see often with winds.

Thunderstorm Wind in WIBAUX, MONTANA
From 26-JUN-12 16:04:00 to 26-JUN-12 16:04:00 (MST-7)
Location: BEAVER HILL DOT
Magnitude: 60.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The gust was measured at the Beaver Hill DOT Site.

Hail in SHERIDAN, MONTANA
From 26-JUN-12 19:04:00 to 26-JUN-12 19:04:00 (MST-7)
Location: RAYMOND
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Pea to quarter size hail fell, with wind gusts of of 40 to 50 mph.

Hail in SHERIDAN, MONTANA
From 26-JUN-12 19:05:00 to 26-JUN-12 19:05:00 (MST-7)
Location: DOOLEY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail from pea to quarter size fell.

Thunderstorm Wind in RICHLAND, MONTANA
From 26-JUN-12 16:00:00 to 26-JUN-12 16:00:00 (MST-7)
Location: LAMBERT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Snapped off branches from trees.  Pea sized hail also fell.

Thunderstorm Wind in MCCONE, MONTANA
From 26-JUN-12 17:44:00 to 26-JUN-12 17:49:00 (MST-7)
Location: BROCKWAY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Storm hit with strong gusts to 60 mph.  After the winds hit, then hail from pea to dime size fell.

Thunderstorm Wind in DANIELS, MONTANA
From 26-JUN-12 18:08:00 to 26-JUN-12 18:15:00 (MST-7)
Location: WHITETAIL
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public report of winds estimated to be up to 60 mph.  There are not many trees or building in the area for there to be any significant damage with this gust.