An unstable atmosphere and a stalled front from central through eastern Montana allowed strong to severe thunderstorms to persist through evening and late night hours.

Hail in DAWSON, MONTANA
From 09-JUN-16 18:00:00 to 09-JUN-16 18:00:00 (MST-7)
Location: LINDSAY
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported golf ball sized hail.

Thunderstorm Wind in GARFIELD, MONTANA
From 09-JUN-16 18:08:00 to 09-JUN-16 18:08:00 (MST-7)
Location: JORDAN AIRPORT (KJDN)
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported trees blown down by estimated 70 mph winds.

Hail in DAWSON, MONTANA
From 09-JUN-16 18:25:00 to 09-JUN-16 18:25:00 (MST-7)
Location: HOYT
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Dawson County Emergency Manager reported baseball sized hail.

Hail in DAWSON, MONTANA
From 09-JUN-16 18:25:00 to 09-JUN-16 18:25:00 (MST-7)
Location: GLENDIVE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported quarter sized hail.

Hail in DAWSON, MONTANA
From 09-JUN-16 18:30:00 to 09-JUN-16 18:30:00 (MST-7)
Location: GLENDIVE
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported half dollar sized hail.

Hail in DAWSON, MONTANA
From 09-JUN-16 18:33:00 to 09-JUN-16 18:33:00 (MST-7)
Location: GLENDIVE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Dawson County Emergency Manager reported penny sized hail and strong winds.

Hail in DAWSON, MONTANA
From 09-JUN-16 18:34:00 to 09-JUN-16 18:34:00 (MST-7)
Location: GLENDIVE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported quarter sized hail.

Hail in WIBAUX, MONTANA
From 09-JUN-16 19:10:00 to 09-JUN-16 19:10:00 (MST-7)
Location: WIBAUX
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported nickel sized hail.

Thunderstorm Wind in PRAIRIE, MONTANA
From 09-JUN-16 19:25:00 to 09-JUN-16 19:25:00 (MST-7)
Location: MC CLOUD
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public estimated 70 mph wind gusts.

Thunderstorm Wind in SHERIDAN, MONTANA
From 09-JUN-16 13:20:00 to 09-JUN-16 13:20:00 (MST-7)
Location: COMERTOWN DOT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public estimated 60 mph winds.

Hail in SHERIDAN, MONTANA
From 09-JUN-16 13:20:00 to 09-JUN-16 13:20:00 (MST-7)
Location: COMERTOWN DOT
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported nickel sized hail.

Hail in PETROLEUM, MONTANA
From 09-JUN-16 14:18:00 to 09-JUN-16 14:18:00 (MST-7)
Location: TEIGEN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported quarter sized hail.

Hail in GARFIELD, MONTANA
From 09-JUN-16 15:10:00 to 09-JUN-16 15:30:00 (MST-7)
Location: SAND SPGS
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported crops destroyed from golf ball to tennis ball sized hail.  At least four windows in homes were shattered. Hail continued for 20 minutes.

Hail in GARFIELD, MONTANA
From 09-JUN-16 15:45:00 to 09-JUN-16 15:45:00 (MST-7)
Location: BRUSETT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported quarter sized hail.

Thunderstorm Wind in PRAIRIE, MONTANA
From 09-JUN-16 19:43:00 to 09-JUN-16 19:43:00 (MST-7)
Location: MC CLOUD
Magnitude: 64.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported 74 mph wind gusts.

Thunderstorm Wind in MCCONE, MONTANA
From 09-JUN-16 17:00:00 to 09-JUN-16 17:20:00 (MST-7)
Location: BROCKWAY
Magnitude: 104.00 EG
Property damage: 280.00K
Crop damage: 0.00K
Reported by: Utility Company

Significant damage to 30 power transmission poles and 30-40 power distribution poles along Highway 200 between Van Norman and Brockway.  A large camper was rolled in the Timber Creek area along Highway 24.

Hail in GARFIELD, MONTANA
From 09-JUN-16 16:25:00 to 09-JUN-16 16:25:00 (MST-7)
Location: COHAGEN
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported tennis ball sized hail.

Hail in GARFIELD, MONTANA
From 09-JUN-16 17:00:00 to 09-JUN-16 17:00:00 (MST-7)
Location: VAN NORMAN
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Off-duty NWS employee reported quarter to golf ball sized hail along with damaging winds.

Thunderstorm Wind in GARFIELD, MONTANA
From 09-JUN-16 17:00:00 to 09-JUN-16 17:00:00 (MST-7)
Location: COHAGEN
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported 10,000-bushel grain bins knocked over and overhead steel doors from a quonset-sytle storage building damaged. Straight-line wind gusts estimated at 80 mph.

Thunderstorm Wind in GARFIELD, MONTANA
From 09-JUN-16 17:00:00 to 09-JUN-16 17:00:00 (MST-7)
Location: VAN NORMAN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Off-duty NWS employee reported 60 mph wind gusts along with large hail.

Hail in PETROLEUM, MONTANA
From 09-JUN-16 17:15:00 to 09-JUN-16 17:15:00 (MST-7)
Location: WINNETT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported quarter sized hail.

Hail in GARFIELD, MONTANA
From 09-JUN-16 17:25:00 to 09-JUN-16 17:25:00 (MST-7)
Location: LUFBOROUGH HILL DOT
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Off-duty police chief reported a cracked windshield from tennis ball sized hail along with damaging winds, heavy rain and near zero visibility.

Hail in DAWSON, MONTANA
From 09-JUN-16 17:45:00 to 09-JUN-16 17:55:00 (MST-7)
Location: LINDSAY
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported quarter to golf ball sized hail lasting for 10 minutes.

Hail in GARFIELD, MONTANA
From 09-JUN-16 17:55:00 to 09-JUN-16 17:55:00 (MST-7)
Location: SAND SPGS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported quarter sized hail.

Thunderstorm Wind in GARFIELD, MONTANA
From 09-JUN-16 17:25:00 to 09-JUN-16 17:25:00 (MST-7)
Location: LUFBOROUGH HILL DOT
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Off-duty police chief reported 80 mph along with large hail, heavy rain, and near zero visibility.

Hail in GARFIELD, MONTANA
From 09-JUN-16 16:00:00 to 09-JUN-16 16:00:00 (MST-7)
Location: BRUSETT
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Storm chaser reported several broken windshields and windows from baseball sized hail along Highway 200, approximately 20 miles west of Jordan.

Thunderstorm Wind in GARFIELD, MONTANA
From 09-JUN-16 16:00:00 to 09-JUN-16 16:00:00 (MST-7)
Location: BRUSETT
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Storm chaser estimated a 70 mph wind gust along Highway 200 approximately 20 miles west of Jordan.

Hail in PETROLEUM, MONTANA
From 09-JUN-16 16:45:00 to 09-JUN-16 16:54:00 (MST-7)
Location: WINNETT
Magnitude: 2.00 
Property damage: 500.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Petroleum County Emergency Manager reported hen egg sized hail, wind gusts to 50 mph, trees downed, roofs and siding damaged, and power outages. Event also resulted in 1 injury: A man was blown off his horse and later transported with injuries to Billings, MT.

Hail in GARFIELD, MONTANA
From 09-JUN-16 17:20:00 to 09-JUN-16 17:20:00 (MST-7)
Location: MOSBY
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Off-duty NWS Employee reported ping pong ball sized hail.

Thunderstorm Wind in GARFIELD, MONTANA
From 09-JUN-16 17:20:00 to 09-JUN-16 17:20:00 (MST-7)
Location: MOSBY
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Off-duty NWS Employee estimated 65 mph wind gusts.

Thunderstorm Wind in VALLEY, MONTANA
From 09-JUN-16 16:18:00 to 09-JUN-16 16:18:00 (MST-7)
Location: HINSDALE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Cooperative observer reported wind gusts up to 60 mph along with heavy rain and visibility around 100 yards.

Hail in GARFIELD, MONTANA
From 09-JUN-16 15:14:00 to 09-JUN-16 15:14:00 (MST-7)
Location: BENZIEN
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported hen egg sized hail.