A major severe weather episode occurred from mid-afternoon on the 2nd through the pre-dawn hours of the 3rd.  A very moist and unstable southwest flow aloft was responsible for the severe weather. Although the majority of the reports were of either large hail or strong wind gusts, there were a few spots that had flash flooding.

Flash Flood in SHERIDAN, MONTANA
From 02-JUL-07 13:30:00 to 02-JUL-07 15:00:00 (MST-7)
Location: PLENTYWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Two inches of rain fell in less than an hour with a total of over 3 inches of rain in 2 hours.  The heavy rain led to flash flooding in a parking lot.

Hail in SHERIDAN, MONTANA
From 02-JUL-07 13:40:00 to 02-JUL-07 13:40:00 (MST-7)
Location: PLENTYWOOD
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in SHERIDAN, MONTANA
From 02-JUL-07 13:30:00 to 02-JUL-07 13:45:00 (MST-7)
Location: RAYMOND
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in VALLEY, MONTANA
From 02-JUL-07 19:15:00 to 02-JUL-07 19:15:00 (MST-7)
Location: LARSLAN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in SHERIDAN, MONTANA
From 02-JUL-07 20:10:00 to 02-JUL-07 20:10:00 (MST-7)
Location: PLENTYWOOD
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The hail was accompanied by wind estimated at 40 to 45 mph and very heavy rain.

Thunderstorm Wind in SHERIDAN, MONTANA
From 02-JUL-07 20:58:00 to 02-JUL-07 20:58:00 (MST-7)
Location: MEDICINE LAKE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The wind was accompanied by heavy rainfall.

Thunderstorm Wind in DAWSON, MONTANA
From 02-JUL-07 22:00:00 to 02-JUL-07 22:00:00 (MST-7)
Location: LINDSAY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in WIBAUX, MONTANA
From 02-JUL-07 23:08:00 to 02-JUL-07 23:08:00 (MST-7)
Location: WIBAUX
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Measured 1.15 inches of rain with the thunderstorms.

Hail in DAWSON, MONTANA
From 03-JUL-07 00:00:00 to 03-JUL-07 00:00:00 (MST-7)
Location: HOYT
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in PRAIRIE, MONTANA
From 03-JUL-07 01:00:00 to 03-JUL-07 01:00:00 (MST-7)
Location: TERRY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in WIBAUX, MONTANA
From 03-JUL-07 03:00:00 to 03-JUL-07 03:00:00 (MST-7)
Location: CARLYLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash Flood in PHILLIPS, MONTANA
From 02-JUL-07 17:30:00 to 02-JUL-07 18:30:00 (MST-7)
Location: DODSON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Water was covering and flowing across Highway 204.

Hail in VALLEY, MONTANA
From 02-JUL-07 18:40:00 to 02-JUL-07 18:40:00 (MST-7)
Location: OPHEIM
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in VALLEY, MONTANA
From 02-JUL-07 18:42:00 to 02-JUL-07 18:42:00 (MST-7)
Location: OPHEIM
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The hail ranged in size from quarter to golf ball, and was accompanied by wind estimated at 50 mph.

Hail in VALLEY, MONTANA
From 02-JUL-07 18:57:00 to 02-JUL-07 18:57:00 (MST-7)
Location: LARSLAN
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in VALLEY, MONTANA
From 02-JUL-07 18:54:00 to 02-JUL-07 18:59:00 (MST-7)
Location: LARSLAN
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Rain in PHILLIPS, MONTANA
From 02-JUL-07 18:40:00 to 02-JUL-07 19:00:00 (MST-7)
Location: DODSON
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Measured eight tenths of an inch of rain in 20 minutes.

Hail in ROOSEVELT, MONTANA
From 02-JUL-07 19:40:00 to 02-JUL-07 19:40:00 (MST-7)
Location: VOLT
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in SHERIDAN, MONTANA
From 02-JUL-07 15:20:00 to 02-JUL-07 15:20:00 (MST-7)
Location: ANTELOPE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in SHERIDAN, MONTANA
From 02-JUL-07 15:20:00 to 02-JUL-07 15:20:00 (MST-7)
Location: ANTELOPE
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in SHERIDAN, MONTANA
From 02-JUL-07 15:25:00 to 02-JUL-07 15:25:00 (MST-7)
Location: COALRIDGE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SHERIDAN, MONTANA
From 02-JUL-07 15:45:00 to 02-JUL-07 15:45:00 (MST-7)
Location: PLENTYWOOD
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in SHERIDAN, MONTANA
From 02-JUL-07 15:45:00 to 02-JUL-07 15:45:00 (MST-7)
Location: PLENTYWOOD
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in SHERIDAN, MONTANA
From 02-JUL-07 16:02:00 to 02-JUL-07 16:02:00 (MST-7)
Location: RESERVE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in PHILLIPS, MONTANA
From 02-JUL-07 17:00:00 to 02-JUL-07 17:00:00 (MST-7)
Location: DODSON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in SHERIDAN, MONTANA
From 02-JUL-07 13:30:00 to 02-JUL-07 13:40:00 (MST-7)
Location: PLENTYWOOD
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Heavy Rain in SHERIDAN, MONTANA
From 02-JUL-07 12:40:00 to 02-JUL-07 13:40:00 (MST-7)
Location: PLENTYWOOD
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Two inches of rain fell in less than an hour.

Hail in SHERIDAN, MONTANA
From 02-JUL-07 14:40:00 to 02-JUL-07 14:40:00 (MST-7)
Location: PLENTYWOOD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The hail ranged in size from dime to quarter and covered the ground.

Thunderstorm Wind in SHERIDAN, MONTANA
From 02-JUL-07 13:30:00 to 02-JUL-07 13:30:00 (MST-7)
Location: PLENTYWOOD
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hail in SHERIDAN, MONTANA
From 02-JUL-07 13:30:00 to 02-JUL-07 13:45:00 (MST-7)
Location: PLENTYWOOD
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The hail ranged in size from pea to nickel and more than covered the ground. There were banks of hail on the property.

Hail in VALLEY, MONTANA
From 02-JUL-07 18:30:00 to 02-JUL-07 18:30:00 (MST-7)
Location: OPHEIM
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in VALLEY, MONTANA
From 02-JUL-07 18:30:00 to 02-JUL-07 18:30:00 (MST-7)
Location: OPHEIM
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ROOSEVELT, MONTANA
From 02-JUL-07 19:40:00 to 02-JUL-07 19:47:00 (MST-7)
Location: VOLT
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash Flood in SHERIDAN, MONTANA
From 02-JUL-07 20:30:00 to 02-JUL-07 21:30:00 (MST-7)
Location: PLENTYWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A series of thunderstorms crossed the area during the afternoon and evening hours.  Numerous streets were flooding in the town of Plentywood from heavy rainfall caused by thunderstorms. Most of the rain during the afternoon fell to the north of town, and the water was running in from the north.

Hail in DAWSON, MONTANA
From 02-JUL-07 23:35:00 to 02-JUL-07 23:35:00 (MST-7)
Location: GLENDIVE
Magnitude: 1.00 
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The hail caused the window in a home to crack.

Hail in PRAIRIE, MONTANA
From 02-JUL-07 23:30:00 to 02-JUL-07 23:36:00 (MST-7)
Location: FALLON
Magnitude: 1.75 
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

The hail destroyed a kitchen window.

Hail in SHERIDAN, MONTANA
From 02-JUL-07 13:30:00 to 02-JUL-07 13:45:00 (MST-7)
Location: PLENTYWOOD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The hail ranged in size from pea to quarter.