Severe thunderstorms developed north of Wolf Point (Roosevelt County) and marched southeast into Richland County. Hail the size of tennis balls and damaging winds occurred in central Roosevelt County.

Hail in RICHLAND, MONTANA
From 29-JUL-10 17:25:00 to 29-JUL-10 17:25:00 (MST-7)
Location: SIDNEY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in VALLEY, MONTANA
From 29-JUL-10 15:50:00 to 29-JUL-10 15:50:00 (MST-7)
Location: LUSTRE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported nickel size hail at his neighbors home.

Thunderstorm Wind in ROOSEVELT, MONTANA
From 29-JUL-10 17:20:00 to 29-JUL-10 17:20:00 (MST-7)
Location: POPLAR RAWS
Magnitude: 60.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

Hail in MCCONE, MONTANA
From 29-JUL-10 18:18:00 to 29-JUL-10 18:18:00 (MST-7)
Location: FT PECK LAKE HANDAR
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Fell along with heavy rain.

Hail in RICHLAND, MONTANA
From 29-JUL-10 18:15:00 to 29-JUL-10 18:15:00 (MST-7)
Location: FAIRVIEW
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The mixture of hail and heavy rain destroyed the garden.

Thunderstorm Wind in ROOSEVELT, MONTANA
From 29-JUL-10 16:10:00 to 29-JUL-10 16:10:00 (MST-7)
Location: POPLAR
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Strong winds lifted a work rig over, a treater tank was blown apart. Power lines were downed.

Hail in DANIELS, MONTANA
From 29-JUL-10 16:00:00 to 29-JUL-10 16:05:00 (MST-7)
Location: SCOBEY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

At 1600 MST 10 miles southeast of Scobey spotter observed 1 inch hail and heavy rain which damaged crop. At 1605 MST 8 miles south-southeast of Scobey 0.75 hail fell.

Hail in ROOSEVELT, MONTANA
From 29-JUL-10 15:35:00 to 29-JUL-10 15:45:00 (MST-7)
Location: WOLF PT
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

At 1535 MST 17 miles northeast of Wolf Point 2.5 hail along with heavy rain occurred.  Total rainfall was 1.5 and hail completely covered the ground.

Thunderstorm Wind in ROOSEVELT, MONTANA
From 29-JUL-10 16:05:00 to 29-JUL-10 16:10:00 (MST-7)
Location: POPLAR
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A measured wind gust of 60 mph occurred 3 miles north-northeast of Poplar at the airport.

Thunderstorm Wind in RICHLAND, MONTANA
From 29-JUL-10 18:10:00 to 29-JUL-10 18:12:00 (MST-7)
Location: FAIRVIEW
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

At 1810 MST in Fairview, an estimated 60 mph wind gust occurred. At 1812 1 mile southwest of Fairview, an estimated 70 mph wind caused a 4 inch diameter tree to snap at the base.

Thunderstorm Wind in MCCONE, MONTANA
From 29-JUL-10 18:18:00 to 29-JUL-10 18:18:00 (MST-7)
Location: FT PECK LAKE HANDAR
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter estimated wind gust of 60 mph.

Hail in VALLEY, MONTANA
From 29-JUL-10 14:55:00 to 29-JUL-10 14:55:00 (MST-7)
Location: LUSTRE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Mixed with nickel size hail.

Hail in ROOSEVELT, MONTANA
From 29-JUL-10 16:55:00 to 29-JUL-10 16:55:00 (MST-7)
Location: BROCKTON
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter observed hail ranging in size from small marbles to golfball size.