Severe thunderstorms moved across mainly the western portions of the forecast area, as well as Carter and Custer Counties in the far Southeastern areas.

Thunderstorm Wind in CARTER, MONTANA
From 30-JUN-10 17:28:00 to 30-JUN-10 17:28:00 (MST-7)
Location: RIDGE
Magnitude: 52.00 EG
Reported by: Trained Spotter

Estimated winds of 60 mph resulting in down tree branches was reported 5 miles northeast of Ridge.

Thunderstorm Wind in CARTER, MONTANA
From 30-JUN-10 17:30:00 to 30-JUN-10 17:30:00 (MST-7)
Location: ALZADA
Magnitude: 70.00 EG
Reported by: Public

Estimated winds of 75-80 mph was reported 7 miles north of Alzada. A 60 X 64 shed was picked up and destroyed sending it about 3/4 of a mile and scattered debris in all directions.

Hail in SWEET GRASS, MONTANA
From 30-JUN-10 14:00:00 to 30-JUN-10 14:00:00 (MST-7)
Location: MELVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SWEET GRASS, MONTANA
From 30-JUN-10 14:20:00 to 30-JUN-10 14:20:00 (MST-7)
Location: MELVILLE
Magnitude: 1.75 
Reported by: Trained Spotter

Thunderstorm Wind in SWEET GRASS, MONTANA
From 30-JUN-10 14:20:00 to 30-JUN-10 14:20:00 (MST-7)
Location: MELVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

An estimated thunderstorm wind gust of 60 mph was estimated 11 miles north of Big Timber.

Thunderstorm Wind in CARTER, MONTANA
From 30-JUN-10 18:12:00 to 30-JUN-10 18:12:00 (MST-7)
Location: ALBION
Magnitude: 52.00 EG
Reported by: Trained Spotter

An estimated wind gust of 60 mph was reported 1 mile north/northeast of Albion.

Thunderstorm Wind in CUSTER, MONTANA
From 30-JUN-10 18:45:00 to 30-JUN-10 18:45:00 (MST-7)
Location: MILES CITY
Magnitude: 52.00 EG
Reported by: Trained Spotter

Estimated wind gusts of 60 mph were reported 2 miles south/southeast of Miles City. Trees of 6.5 in diameter were broken, as well as a 12 diameter by 7 foot long branch fell across a sidewalk. Traffic barriers were blown into a main street intersection. Many branches up to 3 in diameter were blown down. In addition, wide spread power outages were reported.

Hail in CUSTER, MONTANA
From 30-JUN-10 19:00:00 to 30-JUN-10 19:00:00 (MST-7)
Location: ISMAY
Magnitude: 1.25 
Reported by: Trained Spotter

Wind gusts of 60 mph were estimated 3 miles northeast of Ismay with 4 diameter tree branches down.

Thunderstorm Wind in CUSTER, MONTANA
From 30-JUN-10 19:00:00 to 30-JUN-10 19:00:00 (MST-7)
Location: MIZPAH
Magnitude: 52.00 EG
Reported by: Trained Spotter

An estimated wind gust of 60 mph was reported 17 miles southwest of Mizpah.

Hail in SWEET GRASS, MONTANA
From 30-JUN-10 14:40:00 to 30-JUN-10 14:40:00 (MST-7)
Location: MELVILLE
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in SWEET GRASS, MONTANA
From 30-JUN-10 14:43:00 to 30-JUN-10 14:43:00 (MST-7)
Location: MELVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in SWEET GRASS, MONTANA
From 30-JUN-10 14:49:00 to 30-JUN-10 14:49:00 (MST-7)
Location: MELVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in PARK, MONTANA
From 30-JUN-10 15:40:00 to 30-JUN-10 15:40:00 (MST-7)
Location: HUNTERS HOT SPGS
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in PARK, MONTANA
From 30-JUN-10 15:42:00 to 30-JUN-10 15:42:00 (MST-7)
Location: CLYDE PARK
Magnitude: 1.50 
Reported by: Trained Spotter

Broken windows were reported.

Hail in PARK, MONTANA
From 30-JUN-10 15:42:00 to 30-JUN-10 15:42:00 (MST-7)
Location: CLYDE PARK
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in PARK, MONTANA
From 30-JUN-10 15:45:00 to 30-JUN-10 15:45:00 (MST-7)
Location: GRANNIS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in PARK, MONTANA
From 30-JUN-10 15:52:00 to 30-JUN-10 15:52:00 (MST-7)
Location: GRANNIS
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in PARK, MONTANA
From 30-JUN-10 16:12:00 to 30-JUN-10 16:12:00 (MST-7)
Location: HUNTERS HOT SPGS
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in SWEET GRASS, MONTANA
From 30-JUN-10 16:20:00 to 30-JUN-10 16:20:00 (MST-7)
Location: BIG TIMBER
Magnitude: 1.75 
Reported by: Public

Damage from hail resulted in windows being knocked out of a two-story house, as well as a broken vehicle windshield.

Thunderstorm Wind in SWEET GRASS, MONTANA
From 30-JUN-10 16:20:00 to 30-JUN-10 16:20:00 (MST-7)
Location: MELVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

An estimated wind gust of 60 mph was reported 11 miles north of Big Timber.

Hail in SWEET GRASS, MONTANA
From 30-JUN-10 16:20:00 to 30-JUN-10 16:20:00 (MST-7)
Location: BIG TIMBER
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CARTER, MONTANA
From 30-JUN-10 17:10:00 to 30-JUN-10 17:10:00 (MST-7)
Location: RIDGE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in GOLDEN VALLEY, MONTANA
From 30-JUN-10 17:15:00 to 30-JUN-10 17:15:00 (MST-7)
Location: RYEGATE ARPT
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CARTER, MONTANA
From 30-JUN-10 17:22:00 to 30-JUN-10 17:22:00 (MST-7)
Location: RIDGE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in CUSTER, MONTANA
From 29-JUN-10 23:50:00 to 29-JUN-10 23:50:00 (MST-7)
Location: ISMAY
Magnitude: 61.00 MG
Reported by: Mesonet

Thunderstorm Wind in GOLDEN VALLEY, MONTANA
From 30-JUN-10 17:15:00 to 30-JUN-10 17:15:00 (MST-7)
Location: RYEGATE ARPT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

An estimated wind gust of 60 mph was reported 5 miles south of Ryegate.