With plentiful low-level moisture and a very unstable atmosphere, thunderstorms easily formed off the higher terrain of central Montana, then moved eastward with a low pressure trough, and became severe during the afternoon, evening, and overnight hours.

Hail in PHILLIPS, MONTANA
From 28-JUN-19 18:30:00 to 28-JUN-19 18:55:00 (MST-7)
Location: MANNING CORRAL RAWS
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported half dollar size hail between 7:30 and 7:55 PM MDT.

Hail in PHILLIPS, MONTANA
From 28-JUN-19 19:25:00 to 28-JUN-19 19:25:00 (MST-7)
Location: SUN PRAIRIE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported wind-blown golf ball size hail damaged multiple pickup trucks and several house windows.

Hail in PHILLIPS, MONTANA
From 28-JUN-19 19:30:00 to 28-JUN-19 19:30:00 (MST-7)
Location: SUN PRAIRIE
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported half dollar size hail, along with heavy rain and 45 mph wind gusts.

Hail in ROOSEVELT, MONTANA
From 28-JUN-19 22:45:00 to 28-JUN-19 22:45:00 (MST-7)
Location: WOLF PT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Public reported, via social media, quarter size hail.

Hail in SHERIDAN, MONTANA
From 28-JUN-19 22:59:00 to 28-JUN-19 23:05:00 (MST-7)
Location: PLENTYWOOD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported quarter size hail in the town of Plentywood.

Thunderstorm Wind in PHILLIPS, MONTANA
From 28-JUN-19 19:15:00 to 28-JUN-19 19:15:00 (MST-7)
Location: PHILLIPS
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A NWS Employee reported a metal structure was damaged by these strong wind gusts in central Phillips County.

Thunderstorm Wind in PHILLIPS, MONTANA
From 28-JUN-19 20:10:00 to 28-JUN-19 20:10:00 (MST-7)
Location: SACO
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A NWS employee reported multiple 6 inch diameter tree limbs broken off, along with 3 inches of rain in just 30 minutes.

Thunderstorm Wind in VALLEY, MONTANA
From 28-JUN-19 20:40:00 to 28-JUN-19 20:40:00 (MST-7)
Location: VANDALIA
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Storm chaser reported a healthy tree snapped off at its base by strong thunderstorm winds.  Location along Highway 2 near mile marker 521.  Time estimated by radar.

Thunderstorm Wind in DANIELS, MONTANA
From 28-JUN-19 22:30:00 to 28-JUN-19 22:30:00 (MST-7)
Location: SCOBEY
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported newly installed siding blown off of a house.

Thunderstorm Wind in PHILLIPS, MONTANA
From 28-JUN-19 18:05:00 to 28-JUN-19 18:05:00 (MST-7)
Location: LANDUSKY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported 60 mph wind gusts, along with pea size hail.

Thunderstorm Wind in PHILLIPS, MONTANA
From 28-JUN-19 20:00:00 to 28-JUN-19 20:00:00 (MST-7)
Location: CONTENT
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Cooperative observer reported 65 mph wind gusts and heavy rain.

Thunderstorm Wind in VALLEY, MONTANA
From 28-JUN-19 21:10:00 to 28-JUN-19 21:10:00 (MST-7)
Location: GLASGOW
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A NWS employee reported power poles bent, but not broken near the Milk River.

Thunderstorm Wind in VALLEY, MONTANA
From 28-JUN-19 20:03:00 to 28-JUN-19 20:03:00 (MST-7)
Location: HINSDALE
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A 59 mph wind gust was measured at the Saco US-2 DOT site.

Thunderstorm Wind in VALLEY, MONTANA
From 28-JUN-19 20:00:00 to 28-JUN-19 20:15:00 (MST-7)
Location: HINSDALE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported wind gusts up to 60 mph.

Thunderstorm Wind in VALLEY, MONTANA
From 28-JUN-19 20:30:00 to 28-JUN-19 20:30:00 (MST-7)
Location: VANDALIA
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported 65 mph wind gusts.

Thunderstorm Wind in ROOSEVELT, MONTANA
From 28-JUN-19 22:37:00 to 28-JUN-19 22:37:00 (MST-7)
Location: POPLAR
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

A 64 mph wind gust was recorded at the Poplar airport RAWS site.  Time estimated by radar.

Hail in RICHLAND, MONTANA
From 29-JUN-19 01:56:00 to 29-JUN-19 01:56:00 (MST-7)
Location: SIDNEY AIRPORT (KSDY)
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported hail mostly up to the size of quarters, with a few stones at half dollar size.  Time estimated by radar.

Thunderstorm Wind in VALLEY, MONTANA
From 28-JUN-19 21:09:00 to 28-JUN-19 21:09:00 (MST-7)
Location: GLASGOW INTL AIRPORT (KGGW)
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public measured 62 mph wind gusts on their home weather station.

Thunderstorm Wind in VALLEY, MONTANA
From 28-JUN-19 21:10:00 to 28-JUN-19 21:10:00 (MST-7)
Location: GLASGOW INTL AIRPORT (KGGW)
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A NWS employee reported 60 mph wind gusts.

Thunderstorm Wind in RICHLAND, MONTANA
From 29-JUN-19 02:30:00 to 29-JUN-19 02:30:00 (MST-7)
Location: SIDNEY
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported 5-inch diameter tree limbs broken off from strong winds, along with penny size hail.