Storm Events Database

Storm Events Database

Event Details:

Event Tornado
-- Scale EF1
-- Length 0.75 Miles
-- Width 100 Yards
State MONTANA
County/Area BIG HORN
WFO BYZ
Report Source Trained Spotter
NCEI Data Source CSV
Begin Date 2018-06-07 16:40 MST-7
Begin Location 21NNE KIRBY
Begin Lat/Lon 45.5586/-106.7603
End Date 2018-06-07 16:45 MST-7
End Location 21NNE KIRBY
End Lat/Lon 45.5636/-106.7456
Deaths Direct/Indirect 0/0 (fatality details below, when available...)
Injuries Direct/Indirect 0/0
Property Damage
Crop Damage
Episode Narrative Large-scale ascent along with afternoon heating, with cooling/moistening aloft, resulted in approximately 2000 J/kg of CAPE with little inhibition (CIN). This combined with some veering with height of winds and approximately 20-30 kt mid-level flow supported organized multicell and some supercell structures.
Event Narrative The tornado damaged a 20 foot diameter grain bin and tossed it 250 yards. A trailer was also damaged and blown across a driveway. There was also minor damage to a house as the gutters were ripped off and some of the metal roofing torn off. In addition, numerous large trees were uprooted or snapped in half.


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Event Map:

Note: The tornado track is approximate based on the beginning (B) and ending (E) locations. The actual tornado path may differ from a straight line.
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Measure
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All events for this episode:

Location County/Zone St. Date Time T.Z. Type Mag Dth Inj PrD CrD
Totals: 0 0 0.00K 0.00K
LIVINGSTN MISSION FL PARK CO. MT 06/07/2018 06:18 MST-7 Thunderstorm Wind 50 kts. MG 0 0 0.00K 0.00K
ROBERTS CARBON CO. MT 06/07/2018 13:50 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
HARDIN BIG HORN CO. MT 06/07/2018 15:55 MST-7 Hail 1.75 in. 0 0 0.00K 0.00K
CUSTER YELLOWSTONE CO. MT 06/07/2018 16:08 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
CROW AGENCY BIG HORN CO. MT 06/07/2018 16:10 MST-7 Thunderstorm Wind 56 kts. MG 0 0 0.00K 0.00K
YELLOWTAIL BIG HORN CO. MT 06/07/2018 16:10 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
BIGHORN TREASURE CO. MT 06/07/2018 16:35 MST-7 Hail 1.25 in. 0 0 0.00K 0.00K
KIRBY BIG HORN CO. MT 06/07/2018 16:40 MST-7 Tornado EF1 0 0 0.00K 0.00K
KIRBY BIG HORN CO. MT 06/07/2018 16:57 MST-7 Hail 0.75 in. 0 0 0.00K 0.00K
ROSEBUD ROSEBUD CO. MT 06/07/2018 17:19 MST-7 Thunderstorm Wind 61 kts. EG 0 0 0.00K 0.00K
ROSEBUD ROSEBUD CO. MT 06/07/2018 17:25 MST-7 Thunderstorm Wind 61 kts. EG 0 0 0.00K 0.00K
BIRNEY ROSEBUD CO. MT 06/07/2018 17:30 MST-7 Thunderstorm Wind 51 kts. MG 0 0 0.00K 0.00K
FORSYTH ROSEBUD CO. MT 06/07/2018 17:30 MST-7 Thunderstorm Wind 61 kts. EG 0 0 0.00K 0.00K
KINSEY CUSTER CO. MT 06/07/2018 17:30 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
FORSYTH ROSEBUD CO. MT 06/07/2018 17:37 MST-7 Hail 0.75 in. 0 0 0.00K 0.00K
FORSYTH ROSEBUD CO. MT 06/07/2018 17:37 MST-7 Thunderstorm Wind 56 kts. MG 0 0 0.00K 0.00K
FORSYTH ROSEBUD CO. MT 06/07/2018 17:37 MST-7 Thunderstorm Wind 56 kts. EG 0 0 0.00K 0.00K
OTTER POWDER RIVER CO. MT 06/07/2018 17:40 MST-7 Thunderstorm Wind 64 kts. MG 0 0 0.00K 0.00K
MILES CITY ARPT CUSTER CO. MT 06/07/2018 18:02 MST-7 Thunderstorm Wind 53 kts. MG 0 0 0.00K 0.00K
BONFIELD CUSTER CO. MT 06/07/2018 18:30 MST-7 Hail 2.50 in. 0 0 0.00K 0.00K
BONFIELD CUSTER CO. MT 06/07/2018 18:30 MST-7 Flash Flood 0 0 0.00K 0.00K
RIDGEWAY CARTER CO. MT 06/07/2018 19:05 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
WEBSTER FALLON CO. MT 06/07/2018 19:32 MST-7 Thunderstorm Wind 52 kts. MG 0 0 0.00K 0.00K
WILLARD FALLON CO. MT 06/07/2018 19:45 MST-7 Thunderstorm Wind 61 kts. MG 0 0 0.00K 0.00K
MILL IRON CARTER CO. MT 06/07/2018 20:16 MST-7 Thunderstorm Wind 53 kts. MG 0 0 0.00K 0.00K
Totals: 0 0 0.00K 0.00K