A strong upper level disturbance moved across Southeast Montana during the late afternoon and early evening hours of the 22nd. Strong vertical shear along with moderate buoyancy resulted in severe thunderstorms,  a few of which were supercells, across portions of the Billings Forecast area.

Hail in ROSEBUD, MONTANA
From 22-JUL-14 13:35:00 to 22-JUL-14 13:35:00 (MST-7)
Location: ROCK SPGS
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in FALLON, MONTANA
From 22-JUL-14 14:50:00 to 22-JUL-14 14:50:00 (MST-7)
Location: WESTMORE
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in FALLON, MONTANA
From 22-JUL-14 14:55:00 to 22-JUL-14 14:55:00 (MST-7)
Location: BAKER ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CARTER, MONTANA
From 22-JUL-14 15:20:00 to 22-JUL-14 15:20:00 (MST-7)
Location: PINIELE
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Hail in FALLON, MONTANA
From 22-JUL-14 15:27:00 to 22-JUL-14 15:27:00 (MST-7)
Location: OLLIE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in FALLON, MONTANA
From 22-JUL-14 15:15:00 to 22-JUL-14 15:15:00 (MST-7)
Location: CABIN CREEK
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in FALLON, MONTANA
From 22-JUL-14 15:41:00 to 22-JUL-14 15:41:00 (MST-7)
Location: WESTMORE
Magnitude: 70.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A large water tank was torn out and thrown into a field. In addition, numerous tree limbs were down.

Thunderstorm Wind in FALLON, MONTANA
From 22-JUL-14 15:45:00 to 22-JUL-14 15:45:00 (MST-7)
Location: WESTMORE
Magnitude: 61.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in FALLON, MONTANA
From 22-JUL-14 15:50:00 to 22-JUL-14 15:50:00 (MST-7)
Location: WESTMORE
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A roof was blown off an old trailer house. Windows were blown out and holes were in the siding from wind-driven hail. Trees were also blown down with some branches stuck into the side of the house. In addition, a horse trailer rolled 50 to 70 yards.

Thunderstorm Wind in FALLON, MONTANA
From 22-JUL-14 16:05:00 to 22-JUL-14 16:05:00 (MST-7)
Location: PLEVNA
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in FALLON, MONTANA
From 22-JUL-14 16:18:00 to 22-JUL-14 16:18:00 (MST-7)
Location: WILLARD
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in FALLON, MONTANA
From 22-JUL-14 16:20:00 to 22-JUL-14 16:20:00 (MST-7)
Location: WILLARD
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Large hail resulted in severe damage to house and car windows, as well as an RV. Trees were stripped of leaves and some crops were destroyed.

Thunderstorm Wind in SWEET GRASS, MONTANA
From 22-JUL-14 16:25:00 to 22-JUL-14 16:25:00 (MST-7)
Location: MC LEOD
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Four to five large Cottonwood trees were downed.

Thunderstorm Wind in CARTER, MONTANA
From 22-JUL-14 16:30:00 to 22-JUL-14 16:30:00 (MST-7)
Location: ALZADA
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Carter County dispatch reported an RV and another vehicle were blown off Highway 212 between mile markers 138 and 139.

Hail in CARTER, MONTANA
From 22-JUL-14 16:35:00 to 22-JUL-14 16:35:00 (MST-7)
Location: MILL IRON
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hail in CARTER, MONTANA
From 22-JUL-14 16:40:00 to 22-JUL-14 16:40:00 (MST-7)
Location: MILL IRON
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tennis ball size hail took out all north-facing windows of a home and caused significant roof and siding damage. The hail also destroyed car windows.

Thunderstorm Wind in STILLWATER, MONTANA
From 22-JUL-14 16:57:00 to 22-JUL-14 16:57:00 (MST-7)
Location: AOSAROKEE
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Power lines and trees were down in portions of Absarokee.

Thunderstorm Wind in STILLWATER, MONTANA
From 22-JUL-14 17:20:00 to 22-JUL-14 17:20:00 (MST-7)
Location: DEAN
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Thunderstorm Wind in STILLWATER, MONTANA
From 22-JUL-14 17:32:00 to 22-JUL-14 17:32:00 (MST-7)
Location: PARK CITY
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

There were a couple of reports of trees down in Park City. A homeowner had a tree down on their house. Another tree took a power line down across the roadway.

Thunderstorm Wind in STILLWATER, MONTANA
From 22-JUL-14 17:45:00 to 22-JUL-14 17:45:00 (MST-7)
Location: PARK CITY
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in YELLOWSTONE, MONTANA
From 22-JUL-14 17:58:00 to 22-JUL-14 17:58:00 (MST-7)
Location: LOCKWOOD
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in YELLOWSTONE, MONTANA
From 22-JUL-14 18:03:00 to 22-JUL-14 18:03:00 (MST-7)
Location: (BIL)LOGAN ARPT BILL
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Thunderstorm Wind in YELLOWSTONE, MONTANA
From 22-JUL-14 18:15:00 to 22-JUL-14 18:15:00 (MST-7)
Location: LOCKWOOD
Magnitude: 61.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in BIG HORN, MONTANA
From 22-JUL-14 18:40:00 to 22-JUL-14 18:40:00 (MST-7)
Location: FT SMITH
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in BIG HORN, MONTANA
From 22-JUL-14 19:20:00 to 22-JUL-14 19:20:00 (MST-7)
Location: WYOLA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quite a few Cottonwood tree branches were downed.

Thunderstorm Wind in BIG HORN, MONTANA
From 22-JUL-14 19:53:00 to 22-JUL-14 19:53:00 (MST-7)
Location: DECKER
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A pick up camper's hatch roof was ripped off during the storm. Winds were estimated at 65 to 80 mph.

Thunderstorm Wind in STILLWATER, MONTANA
From 22-JUL-14 17:11:00 to 22-JUL-14 17:11:00 (MST-7)
Location: COLUMBUS
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

There were numerous reports of trees down on houses, power lines and across roads in the town of Columbus.