A strong trough of low pressure, a cold front, and plentiful surface moisture combined with a moderate to very unstable atmosphere to produce and sustain many severe thunderstorms across most of eastern Montana.

Hail in WIBAUX, MONTANA
From 24-JUL-14 18:35:00 to 24-JUL-14 18:35:00 (MST-7)
Location: BEAVER HILL DOT
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported half dollar-sized hail with very heavy rain.

Thunderstorm Wind in SHERIDAN, MONTANA
From 24-JUL-14 17:54:00 to 24-JUL-14 17:54:00 (MST-7)
Location: PLENTYWOOD
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter estimated 60 mph wind gusts.

Thunderstorm Wind in WIBAUX, MONTANA
From 24-JUL-14 18:20:00 to 24-JUL-14 18:20:00 (MST-7)
Location: WIBAUX
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported wind damage at two farms located 6 and 7 miles south of Wibaux.  Hay bales were moved across fields.  A shed was destroyed and a trailer was flipped over.

Hail in RICHLAND, MONTANA
From 24-JUL-14 18:30:00 to 24-JUL-14 18:30:00 (MST-7)
Location: SIOUX PASS DOT
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported golf ball-sized hail.

Hail in ROOSEVELT, MONTANA
From 24-JUL-14 18:46:00 to 24-JUL-14 18:46:00 (MST-7)
Location: BAINVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported quarter-sized hail.

Hail in DAWSON, MONTANA
From 24-JUL-14 18:07:00 to 24-JUL-14 18:07:00 (MST-7)
Location: GLENDIVE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported penny-sized hail.

Hail in RICHLAND, MONTANA
From 24-JUL-14 18:15:00 to 24-JUL-14 18:15:00 (MST-7)
Location: SIOUX PASS DOT
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported nickel-sized hail with heavy rain and wind gusts up to 50 mph.

Thunderstorm Wind in VALLEY, MONTANA
From 24-JUL-14 16:53:00 to 24-JUL-14 16:53:00 (MST-7)
Location: GLASGOW INTL AIRPORT (KGGW)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Glasgow airport ASOS measured a 60 mph wind gust.

Thunderstorm Wind in VALLEY, MONTANA
From 24-JUL-14 16:53:00 to 24-JUL-14 16:53:00 (MST-7)
Location: GLASGOW
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

NWS employee reported a 60 mph wind gust in the town of Glasgow.

Thunderstorm Wind in VALLEY, MONTANA
From 24-JUL-14 16:04:00 to 24-JUL-14 16:04:00 (MST-7)
Location: DUCK CREEK
Magnitude: 64.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gust of 74 mph was recorded on an automated weather station.  Trained spotter was out of town during the event, but reported it later.

Thunderstorm Wind in VALLEY, MONTANA
From 24-JUL-14 17:15:00 to 24-JUL-14 17:15:00 (MST-7)
Location: NASHUA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported roof blown off a barn.

Thunderstorm Wind in DANIELS, MONTANA
From 24-JUL-14 16:30:00 to 24-JUL-14 16:30:00 (MST-7)
Location: PEERLESS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported large trees blown down with significant damage.

Thunderstorm Wind in VALLEY, MONTANA
From 24-JUL-14 16:57:00 to 24-JUL-14 16:57:00 (MST-7)
Location: GLENTANA
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter estimated 80 mph winds which blew off a shop door.

Hail in DAWSON, MONTANA
From 24-JUL-14 17:20:00 to 24-JUL-14 17:20:00 (MST-7)
Location: BLOOMFIELD
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported mostly quarter-sized hail with some golf ball sized-hail.

Thunderstorm Wind in MCCONE, MONTANA
From 24-JUL-14 16:34:00 to 24-JUL-14 16:34:00 (MST-7)
Location: CIRCLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter estimated wind gusts of 50 to 60 mph and some tree limbs broken.

Thunderstorm Wind in ROOSEVELT, MONTANA
From 24-JUL-14 17:03:00 to 24-JUL-14 17:03:00 (MST-7)
Location: MCDONALDS DOT
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

McDonalds DOT site measured a 60 mph wind gust.

Thunderstorm Wind in DAWSON, MONTANA
From 24-JUL-14 17:15:00 to 24-JUL-14 17:15:00 (MST-7)
Location: BLOOMFIELD
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported a 60 mph wind gust with pea-sized hail.

Hail in MCCONE, MONTANA
From 24-JUL-14 16:34:00 to 24-JUL-14 16:34:00 (MST-7)
Location: COW CREEK DOT
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported penny-sized hail.

Hail in GARFIELD, MONTANA
From 24-JUL-14 00:30:00 to 24-JUL-14 00:30:00 (MST-7)
Location: BRUSETT
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported mostly quarter-sized hail mixed with some half dollar-sized hail.

Hail in VALLEY, MONTANA
From 24-JUL-14 01:30:00 to 24-JUL-14 01:30:00 (MST-7)
Location: OPHEIM
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported quarter-sized hail.

Hail in ROOSEVELT, MONTANA
From 24-JUL-14 02:20:00 to 24-JUL-14 02:20:00 (MST-7)
Location: MCDONALDS DOT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported quarter-sized hail.

Hail in GARFIELD, MONTANA
From 24-JUL-14 14:35:00 to 24-JUL-14 14:55:00 (MST-7)
Location: JORDAN AIRPORT (KJDN)
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported hail up to the size of golf balls.  Duration of 20 minutes.  Neighbors sustained significant crop damage.

Thunderstorm Wind in ROOSEVELT, MONTANA
From 24-JUL-14 16:52:00 to 24-JUL-14 16:52:00 (MST-7)
Location: WOLF PT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Roosevelt County dispatch reported a tree and a power line blown down.

Thunderstorm Wind in ROOSEVELT, MONTANA
From 24-JUL-14 16:59:00 to 24-JUL-14 16:59:00 (MST-7)
Location: WOLF PT INTL AIRPORT(KOLF)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Wolf Point airport ASOS measured a 59 mph wind gust.

Thunderstorm Wind in ROOSEVELT, MONTANA
From 24-JUL-14 17:00:00 to 24-JUL-14 17:00:00 (MST-7)
Location: WOLF PT
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

NWS Employee reported a 59 mph wind gust in the town of Wolf Point.

Thunderstorm Wind in MCCONE, MONTANA
From 24-JUL-14 17:03:00 to 24-JUL-14 17:03:00 (MST-7)
Location: COW CREEK DOT
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Cow Creek DOT site measured a 59 mph wind gust.

Hail in DAWSON, MONTANA
From 24-JUL-14 17:53:00 to 24-JUL-14 17:53:00 (MST-7)
Location: GLENDIVE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported mostly dime-sized to penny-sized hail mixed with some quarter-sized hail.

Hail in PHILLIPS, MONTANA
From 24-JUL-14 15:15:00 to 24-JUL-14 15:15:00 (MST-7)
Location: WHITEWATER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported quarter-sized hail.

Hail in GARFIELD, MONTANA
From 24-JUL-14 15:26:00 to 24-JUL-14 15:26:00 (MST-7)
Location: JORDAN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported penny-sized hail with heavy rain and wind gusts up to 45 mph.

Hail in PHILLIPS, MONTANA
From 24-JUL-14 15:30:00 to 24-JUL-14 15:30:00 (MST-7)
Location: SACO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported quarter-sized hail with heavy rain.

Thunderstorm Wind in PHILLIPS, MONTANA
From 24-JUL-14 15:15:00 to 24-JUL-14 15:15:00 (MST-7)
Location: WHITEWATER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported 60 mph wind gusts.

Hail in GARFIELD, MONTANA
From 24-JUL-14 15:33:00 to 24-JUL-14 15:38:00 (MST-7)
Location: VAN NORMAN
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported golf ball-sized hail causing damage to a window on a house.  Hail also destroyed a garden.  Hail created a swath of total crop damage measuring one-half to one mile wide and at least three miles long. Information was relayed from Garfield County extension agent and then from property owners.  Hail duration of 5 minutes.

Hail in GARFIELD, MONTANA
From 24-JUL-14 15:47:00 to 24-JUL-14 15:47:00 (MST-7)
Location: VAN NORMAN
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported ping pong ball-sized hail damaged a garden and some plants.  Hail caused more significant drop damage south and west of this location.

Hail in MCCONE, MONTANA
From 24-JUL-14 16:30:00 to 24-JUL-14 16:30:00 (MST-7)
Location: CIRCLE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported golf ball-sized hail breaking vehicle windshields.

Thunderstorm Wind in MCCONE, MONTANA
From 24-JUL-14 16:02:00 to 24-JUL-14 16:02:00 (MST-7)
Location: BROCKWAY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported dime-sized hail covering the ground to a depth of four inches, and wind gusts of 50 to 60 mph.

Thunderstorm Wind in MCCONE, MONTANA
From 24-JUL-14 16:30:00 to 24-JUL-14 16:30:00 (MST-7)
Location: CIRCLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported some trees were blown down.

Hail in GARFIELD, MONTANA
From 24-JUL-14 15:47:00 to 24-JUL-14 15:47:00 (MST-7)
Location: VAN NORMAN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported penny-sized hail with heavy rain and winds up to 40 mph.

Thunderstorm Wind in VALLEY, MONTANA
From 24-JUL-14 16:11:00 to 24-JUL-14 16:11:00 (MST-7)
Location: LARSLAN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported large round hay bales were blown around and tipped over, having travelled from one field, through a ditch, and onto another field.

Thunderstorm Wind in VALLEY, MONTANA
From 24-JUL-14 16:10:00 to 24-JUL-14 16:10:00 (MST-7)
Location: GLASGOW
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

NWS Employee reported a power pole was bent over with wires lying on the ground.

Thunderstorm Wind in VALLEY, MONTANA
From 24-JUL-14 16:00:00 to 24-JUL-14 16:00:00 (MST-7)
Location: KING COULEE RAWS
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

The King Coulee RAWS site measured a 66 mph wind gust.

Thunderstorm Wind in VALLEY, MONTANA
From 24-JUL-14 16:00:00 to 24-JUL-14 16:00:00 (MST-7)
Location: FT PECK
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter measured a 73 mph wind gust.

Thunderstorm Wind in VALLEY, MONTANA
From 24-JUL-14 16:15:00 to 24-JUL-14 16:15:00 (MST-7)
Location: NASHUA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported a roof blew off a barn.

Thunderstorm Wind in VALLEY, MONTANA
From 24-JUL-14 15:35:00 to 24-JUL-14 15:35:00 (MST-7)
Location: BLUFF CREEK RAWS
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

The Bluff Creek RAWS site measured a 58 mph wind gust.

Hail in VALLEY, MONTANA
From 24-JUL-14 16:20:00 to 24-JUL-14 16:20:00 (MST-7)
Location: GLENTANA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported penny-sized hail.  Event time estimated.

Thunderstorm Wind in PHILLIPS, MONTANA
From 24-JUL-14 14:55:00 to 24-JUL-14 14:55:00 (MST-7)
Location: SUN PRAIRIE
Magnitude: 61.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Newspaper

Local newspaper reported two power poles were knocked down.  Power failure continued for two hours.

Thunderstorm Wind in VALLEY, MONTANA
From 24-JUL-14 15:46:00 to 24-JUL-14 16:06:00 (MST-7)
Location: NASHUA
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Winds estimated to 80 mph and blew shingles off a roof, and broke a window. Duration of very strong winds was at least 20 minutes.

Thunderstorm Wind in VALLEY, MONTANA
From 24-JUL-14 15:56:00 to 24-JUL-14 16:54:00 (MST-7)
Location: GLASGOW INTL AIRPORT (KGGW)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Glasgow airport ASOS measured a wind gust of 59 mph.  Winds continued gusting above 58 mph for nearly 1 hour.  These winds were a combination of thunderstorm wind gusts and post-frontal wind.  The peak wind gust was 60 mph.  Numerous large tree branches were down and some roof shingles were damaged.

Thunderstorm Wind in VALLEY, MONTANA
From 24-JUL-14 15:55:00 to 24-JUL-14 17:00:00 (MST-7)
Location: SAINT MARIE
Magnitude: 58.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The mesonet site at Saint Marie measured a peak wind of 67 mph. These winds were a combination of thunderstorm wind gusts and post-cold frontal winds.  The strong and severe winds continued for an hour and 5 minutes.

Thunderstorm Wind in VALLEY, MONTANA
From 24-JUL-14 16:15:00 to 24-JUL-14 16:15:00 (MST-7)
Location: NASHUA
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public estimated 80 mph winds which blew shingles off a roof and broke a window.

Hail in GARFIELD, MONTANA
From 24-JUL-14 01:00:00 to 24-JUL-14 01:10:00 (MST-7)
Location: JORDAN AIRPORT (KJDN)
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported half dollar-sized hail.  Duration of 10 minutes.

Hail in MCCONE, MONTANA
From 24-JUL-14 16:15:00 to 24-JUL-14 16:15:00 (MST-7)
Location: BROCKWAY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported quarter-sized hail covering the ground.

Tornado in WIBAUX, MONTANA
From 24-JUL-14 18:19:00 to 24-JUL-14 18:19:00 (MST-7)
Location: BEAVER HILL DOT
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported short-lived tornado moving northeast.  Path length and width have been estimated.  No damage was found.