Numerous severe thunderstorms developed during the late afternoon and early evening hours on the 19th.  The severe thunderstorms occurred to the north and west of Billings.

Thunderstorm Wind in WHEATLAND, MONTANA
From 19-JUN-13 18:31:00 to 19-JUN-13 18:31:00 (MST-7)
Location: JUDITH GAP
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Thunderstorm Wind in MUSSELSHELL, MONTANA
From 19-JUN-13 19:00:00 to 19-JUN-13 19:00:00 (MST-7)
Location: KLEIN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Large tree branches were broken.

Hail in MUSSELSHELL, MONTANA
From 19-JUN-13 19:00:00 to 19-JUN-13 19:00:00 (MST-7)
Location: ROUNDUP
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Pea to quarter size hail with winds estimated at 50 mph were reported.

Hail in MUSSELSHELL, MONTANA
From 19-JUN-13 19:00:00 to 19-JUN-13 19:00:00 (MST-7)
Location: ROUNDUP
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Pea to quarter size hail was reported.

Thunderstorm Wind in PARK, MONTANA
From 19-JUN-13 16:51:00 to 19-JUN-13 16:51:00 (MST-7)
Location: LIVINGSTON
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Hail in MUSSELSHELL, MONTANA
From 19-JUN-13 19:00:00 to 19-JUN-13 19:00:00 (MST-7)
Location: ROUNDUP
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SWEET GRASS, MONTANA
From 19-JUN-13 15:14:00 to 19-JUN-13 15:14:00 (MST-7)
Location: BIG TIMBER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Funnel Cloud in SWEET GRASS, MONTANA
From 19-JUN-13 14:45:00 to 19-JUN-13 14:45:00 (MST-7)
Location: BIG TIMBER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A funnel cloud was reported over the Big Timber Airport.

Hail in STILLWATER, MONTANA
From 19-JUN-13 15:15:00 to 19-JUN-13 15:15:00 (MST-7)
Location: RAPIDS
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in STILLWATER, MONTANA
From 19-JUN-13 15:10:00 to 19-JUN-13 15:10:00 (MST-7)
Location: COLUMBUS
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in STILLWATER, MONTANA
From 19-JUN-13 15:00:00 to 19-JUN-13 15:00:00 (MST-7)
Location: RAPIDS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail was peal to quarter size and it shredded the leaves off trees.

Hail in STILLWATER, MONTANA
From 19-JUN-13 18:09:00 to 19-JUN-13 18:09:00 (MST-7)
Location: RAPELJE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MUSSELSHELL, MONTANA
From 19-JUN-13 19:16:00 to 19-JUN-13 19:16:00 (MST-7)
Location: ROUNDUP
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MUSSELSHELL, MONTANA
From 19-JUN-13 19:15:00 to 19-JUN-13 19:15:00 (MST-7)
Location: ROUNDUP
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail was quarter to half dollar size and was accompanied by 50 mph winds.

Hail in MUSSELSHELL, MONTANA
From 19-JUN-13 19:20:00 to 19-JUN-13 19:20:00 (MST-7)
Location: ROUNDUP
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail was nickel to quarter size and was accompanied by winds estimated at 70 to 80 mph.

Funnel Cloud in MUSSELSHELL, MONTANA
From 19-JUN-13 19:15:00 to 19-JUN-13 19:15:00 (MST-7)
Location: KLEIN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

There were multiple funnel cloud reports.

Thunderstorm Wind in MUSSELSHELL, MONTANA
From 19-JUN-13 19:15:00 to 19-JUN-13 19:15:00 (MST-7)
Location: ROUNDUP
Magnitude: 62.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Thunderstorm Wind in MUSSELSHELL, MONTANA
From 19-JUN-13 20:10:00 to 19-JUN-13 20:10:00 (MST-7)
Location: MUSSELSHELL
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous power poles were snapped.

Flash Flood in MUSSELSHELL, MONTANA
From 19-JUN-13 20:30:00 to 19-JUN-13 22:15:00 (MST-7)
Location: KLEIN
Flood cause: Heavy Rain / Burn Area
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Flash flooding occurred across portions of the Wilson and Dahl Fire burn scar areas. Radar estimated between 1 and 2 inches of rain fell in an hour.

Flash Flood in MUSSELSHELL, MONTANA
From 19-JUN-13 20:45:00 to 19-JUN-13 22:35:00 (MST-7)
Location: DELPHIA
Flood cause: Heavy Rain / Burn Area
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Fast moving water, approximately 1 foot deep, flooded private roadways.

Thunderstorm Wind in MUSSELSHELL, MONTANA
From 19-JUN-13 20:10:00 to 19-JUN-13 20:10:00 (MST-7)
Location: MUSSELSHELL
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Two 5000 gallon oilfield tanks were pushed uphill from their storage area and located one mile away.

Hail in STILLWATER, MONTANA
From 19-JUN-13 15:25:00 to 19-JUN-13 15:25:00 (MST-7)
Location: RAPIDS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail was dime to quarter size.