Severe thunderstorms developed across the Hi-Line during the evening of the 29th. Hail the size of golf balls and wind gusts in excess of 80 mph were reported.

Hail in GLACIER, MONTANA
From 29-JUN-07 13:53:00 to 29-JUN-07 13:53:00 (MST-7)
Location: BLACKFOOT
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A severe thunderstorm dropped 1.75 inch diameter hail at Blackfoot 26N (the U.S. Customs office at Del Bonita).

Hail in TOOLE, MONTANA
From 29-JUN-07 15:35:00 to 29-JUN-07 15:35:00 (MST-7)
Location: SWEETGRASS
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

A severe thunderstorm dropped 1.75 inch diameter hail at the Sweet Grass Port of Entry.

Hail in CHOUTEAU, MONTANA
From 29-JUN-07 18:30:00 to 29-JUN-07 18:30:00 (MST-7)
Location: FLOWEREE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm dropped .75 inch diameter hail at Power 15E.

Hail in LIBERTY, MONTANA
From 29-JUN-07 19:10:00 to 29-JUN-07 19:10:00 (MST-7)
Location: CHESTER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm dropped .75 inch diameter hail at Chester 23S.

Thunderstorm Wind in LIBERTY, MONTANA
From 29-JUN-07 19:10:00 to 29-JUN-07 19:10:00 (MST-7)
Location: MARIAS
Magnitude: 69.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm produced a wind gust to 80 mph at Goose Bill Butte 10NNW.

Hail in LIBERTY, MONTANA
From 29-JUN-07 19:30:00 to 29-JUN-07 19:30:00 (MST-7)
Location: BUELOW
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm dropped .75 inch hail at Rudyard 16SW. The hail stripped leaves from trees. The storm also produced 1.40 inches of rain in 30 minutes.

Thunderstorm Wind in HILL, MONTANA
From 29-JUN-07 19:35:00 to 29-JUN-07 19:35:00 (MST-7)
Location: RUDYARD
Magnitude: 61.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm produced a wind gust to 70 ,ph at Rudyard.

Heavy Rain in HILL, MONTANA
From 29-JUN-07 19:40:00 to 29-JUN-07 19:40:00 (MST-7)
Location: INVERNESS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A thunderstorm produced .40 inches of rain in 5 ,imutes.

Thunderstorm Wind in HILL, MONTANA
From 29-JUN-07 20:10:00 to 29-JUN-07 20:10:00 (MST-7)
Location: HINGHAM
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm produced a wind gust to 65 mph at Hingham 12N.

Thunderstorm Wind in CHOUTEAU, MONTANA
From 29-JUN-07 20:10:00 to 29-JUN-07 20:10:00 (MST-7)
Location: BIG SANDY
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm produced a wind gust to 70 mph at Big Sandy 6N. The storm also produced between 0.50 and 0.75 inches of rain in 20 minutes.

Thunderstorm Wind in HILL, MONTANA
From 29-JUN-07 20:05:00 to 29-JUN-07 20:05:00 (MST-7)
Location: RUDYARD
Magnitude: 82.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A thunderstorm produced a wind gust to 95 mph at Rudyard. The storm broke tree branches up to 8 inches in diameter, knocked down a metal shed bolted to a concrete foundation and blew a trampoline into power lines. Power was reported out in Rudyard.