A strong system ejecting out of the central Rockies brought heavy rainfall and severe thunderstorms to the area during the evening. This episode produced an EF1 tornado in northern McCone county and a microburst in eastern Roosevelt county that killed one person near Froid, MT.

Flood in WIBAUX, MONTANA
From 17-JUN-10 03:00:00 to 17-JUN-10 03:00:00 (MST-7)
Location: WIBAUX
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Heavy rainfall occurred in southern Wibaux and northern Fallon County. Reports of rainfall up to 5 in this area were received by NWS Billings spotters.   This water flowed into the Beaver Creek, which flows northward into the town of Wibaux.   It was out of it's banks in many places by the morning of June 17th.  No major damage was caused.

Hail in RICHLAND, MONTANA
From 16-JUN-10 19:32:00 to 16-JUN-10 19:32:00 (MST-7)
Location: LAMBERT
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel size hail was reported by a trained spotter.

Thunderstorm Wind in RICHLAND, MONTANA
From 16-JUN-10 19:50:00 to 16-JUN-10 19:50:00 (MST-7)
Location: LAMBERT
Magnitude: 61.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The spotter reported pea size hail along with the wind.

Hail in SHERIDAN, MONTANA
From 16-JUN-10 20:28:00 to 16-JUN-10 20:30:00 (MST-7)
Location: PLENTYWOOD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Penny size hail was reported 4 miles east-southeast of Archer at 20:28 MST. 1.0 hail was reported 8 miles west of Plentywood at 20:30 MST.

Thunderstorm Wind in DAWSON, MONTANA
From 16-JUN-10 18:50:00 to 16-JUN-10 18:50:00 (MST-7)
Location: GLENDIVE
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Estimated 60 to 70 mph winds were observed.

Hail in ROOSEVELT, MONTANA
From 16-JUN-10 20:37:00 to 16-JUN-10 20:37:00 (MST-7)
Location: FROID
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter reported strong winds and heavy rain with the storm.

Tornado in MCCONE, MONTANA
From 16-JUN-10 19:56:00 to 16-JUN-10 20:04:00 (MST-7)
Location: FT PECK LAKE HANDAR
Tornado F-scale: EF1
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Public

Landowner reported a tornado that snapped numerous trees and damaged some metal storage sheds across his property. Tornadic winds were estimated from NWS Survey at 100 mph.

Hail in WIBAUX, MONTANA
From 16-JUN-10 17:57:00 to 16-JUN-10 17:57:00 (MST-7)
Location: WIBAUX
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported quarter size hail.

Heavy Rain in PHILLIPS, MONTANA
From 16-JUN-10 18:11:00 to 16-JUN-10 19:48:00 (MST-7)
Location: MANNING CORRAL RAWS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported basement flooding. At 1948 MST, the spotter reported 2.4 inches of total rainfall since it started during the afternoon.

Thunderstorm Wind in DAWSON, MONTANA
From 16-JUN-10 19:22:00 to 16-JUN-10 19:22:00 (MST-7)
Location: BLOOMFIELD
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public estimated 60 mph wind gust.

Thunderstorm Wind in RICHLAND, MONTANA
From 16-JUN-10 19:07:00 to 16-JUN-10 19:07:00 (MST-7)
Location: ENID
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter recorded wind gust with a Kestrel unit. Power was then lost while pea size hail fell.

Thunderstorm Wind in DANIELS, MONTANA
From 16-JUN-10 20:43:00 to 16-JUN-10 20:43:00 (MST-7)
Location: SCOBEY
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter reported power poles downed; roofs were lifted off of small sheds as well.

Thunderstorm Wind in ROOSEVELT, MONTANA
From 16-JUN-10 20:00:00 to 16-JUN-10 20:10:00 (MST-7)
Location: FROID
Magnitude: 96.00 EG
Property damage: 250.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Severe thunderstorms across the region had widespread reports of winds in the 60 to 75 mph range, but a microburst 3 miles west of the town of Froid produced winds estimated based off of the damage survey at 110 to 125 mph.  The winds hit just after 9 pm MDT.   A modular home that was strapped to the ground had the straps snapped, and it was lifted from its foundation, thrown 30 feet to the north-northeast and flipped over.   Two people were in the home at the time and a female ended up approximately 250-280 feet north-northeast of the main debris area.  The female victim died shortly afterwards and the male victim was hospitalized with injuries including a broken arm and collarbone.  The home was a total loss.  A garage next to the home had damage to the garage doors, the siding on the west side of the home, and some of the roofing shingles torn off.

Thunderstorm Wind in ROOSEVELT, MONTANA
From 16-JUN-10 20:12:00 to 16-JUN-10 20:28:00 (MST-7)
Location: POPLAR
Magnitude: 63.00 MG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter reported trees down with heavy rain and wind speed was unknown. Poplar RAWS reported a wind gust of 72 mph at 20:28 MST.  A long metal building near the Poplar Airport had the southwest corner of the metal roof peeled back and blown downstream.

Hail in DAWSON, MONTANA
From 16-JUN-10 18:35:00 to 16-JUN-10 18:50:00 (MST-7)
Location: GLENDIVE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter 8S Glendive reported the largest hail at 1835 MST. At 1837 MST the storm produced up one inch hail 1S Glendive. The storm produced 0.25 inch hail with a strong wind at 1850 MST 2W of Glendive.

Thunderstorm Wind in DAWSON, MONTANA
From 16-JUN-10 18:45:00 to 16-JUN-10 18:45:00 (MST-7)
Location: GLENDIVE DAWSON ARPT
Magnitude: 73.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Glendive Airport AWOS reported a gust of 84 mph.

Hail in RICHLAND, MONTANA
From 16-JUN-10 19:07:00 to 16-JUN-10 19:07:00 (MST-7)
Location: ENID
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported golfball size hail.

Heavy Rain in VALLEY, MONTANA
From 16-JUN-10 21:43:00 to 16-JUN-10 22:59:00 (MST-7)
Location: HINSDALE
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Five miles west of Hinsdale received 0.99 in about 17 minutes, through 9 pm MST. 11 miles west of Glasgow along the Tampico Road, two older power poles were snapped and down due to heavy rain and a wind gust to 45 mph. At 2130 MST, 1.6 of rainfall fell during this event. Through 11 pm MST, 10 miles west of Glasgow 2.09 of rain fell.

Hail in MCCONE, MONTANA
From 16-JUN-10 18:50:00 to 16-JUN-10 18:50:00 (MST-7)
Location: BROCKWAY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported nickel size hail.

Thunderstorm Wind in WIBAUX, MONTANA
From 16-JUN-10 19:03:00 to 16-JUN-10 19:03:00 (MST-7)
Location: CARLYLE
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The trained spotter reported pea size hail with the strong wind.

Thunderstorm Wind in ROOSEVELT, MONTANA
From 16-JUN-10 21:15:00 to 16-JUN-10 21:15:00 (MST-7)
Location: BROCKTON
Magnitude: 70.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter reported that the roof was blown off a pole barn and two walls of the pole barn had collapsed.

Flash Flood in PHILLIPS, MONTANA
From 16-JUN-10 20:12:00 to 16-JUN-10 20:12:00 (MST-7)
Location: MANNING CORRAL RAWS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter reported that Second Creek was out of it's banks and water was over the spillway and roadway.