Storm Events Database

Event Details

Event Hail
Magnitude 1.25 in.
State MONTANA
County/Area MUSSELSHELL
WFO BYZ
Report Source Insurance Company
NCDC Data Source CSV
Begin Date 2010-06-20 15:10:00.0 MST-7
Begin Location 0E MELSTONE
Begin Lat/Lon 46.6/-107.87
End Date 2010-06-20 15:10:00.0 MST-7
Deaths Direct/Indirect 0/0 (fatality details below, when available...)
Injuries Direct/Indirect 0/0
Property Damage
Crop Damage
Episode Narrative Meteorologically speaking, this was a very active severe weather day for south central Montana. A very moist and unstable atmosphere was in place across portions of the Billings Forecast area during the afternoon and evening of the 20th (Father's Day). A moist, southeast surface flow, strong wind shear aloft, and ample afternoon heating provided the necessary ingredients for severe weather. Numerous thunderstorms, some of which became rapidly severe producing tornadoes and large hail, developed across South Central Montana.
Event Narrative


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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 32.700M 0.00K
HARDIN BIG HORN CO. MT 06/20/2010 13:20 MST-7 Hail 1.50 in. 0 0 0.00K 0.00K
HARDIN BIG HORN CO. MT 06/20/2010 13:25 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
(4BQ)BROADUS ARPT POWDER RIVER CO. MT 06/20/2010 14:38 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
HESPER YELLOWSTONE CO. MT 06/20/2010 14:53 MST-7 Hail 2.75 in. 0 0 0.00K 0.00K
RIMROCK YELLOWSTONE CO. MT 06/20/2010 14:57 MST-7 Hail 1.75 in. 0 0 0.00K 0.00K
MELSTONE MUSSELSHELL CO. MT 06/20/2010 15:10 MST-7 Hail 1.25 in. 0 0 0.00K 0.00K
BILLINGS HGTS YELLOWSTONE CO. MT 06/20/2010 15:20 MST-7 Hail 1.75 in. 0 0 0.00K 0.00K
(BIL)LOGAN ARPT BILL YELLOWSTONE CO. MT 06/20/2010 15:22 MST-7 Hail 1.75 in. 0 0 0.00K 0.00K
BILLINGS YELLOWSTONE CO. MT 06/20/2010 15:24 MST-7 Tornado EF2 0 0 30.000M 0.00K
BROADUS POWDER RIVER CO. MT 06/20/2010 15:25 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
(BIL)LOGAN ARPT BILL YELLOWSTONE CO. MT 06/20/2010 15:30 MST-7 Hail 1.50 in. 0 0 0.00K 0.00K
MUSSELSHELL MUSSELSHELL CO. MT 06/20/2010 15:30 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
(BIL)LOGAN ARPT BILL YELLOWSTONE CO. MT 06/20/2010 15:38 MST-7 Hail 1.75 in. 0 0 0.00K 0.00K
BILLINGS YELLOWSTONE CO. MT 06/20/2010 15:50 MST-7 Hail 0.88 in. 0 0 0.00K 0.00K
DECKER BIG HORN CO. MT 06/20/2010 16:04 MST-7 Hail 2.75 in. 0 0 0.00K 0.00K
BROADUS POWDER RIVER CO. MT 06/20/2010 16:10 MST-7 Thunderstorm Wind 52 kts. EG 0 0 0.00K 0.00K
ELSO MUSSELSHELL CO. MT 06/20/2010 16:12 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
DECKER BIG HORN CO. MT 06/20/2010 16:25 MST-7 Hail 0.88 in. 0 0 0.00K 0.00K
RIDGEWAY CARTER CO. MT 06/20/2010 16:45 MST-7 Hail 0.75 in. 0 0 0.00K 0.00K
BROADUS POWDER RIVER CO. MT 06/20/2010 16:50 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
ALBION CARTER CO. MT 06/20/2010 16:51 MST-7 Hail 2.00 in. 0 0 0.00K 0.00K
RIDGEWAY CARTER CO. MT 06/20/2010 17:02 MST-7 Hail 1.00 in. 0 0 0.00K 0.00K
(BIL)LOGAN ARPT BILL YELLOWSTONE CO. MT 06/20/2010 17:05 MST-7 Flash Flood 0 0 2.700M 0.00K
RIDGEWAY CARTER CO. MT 06/20/2010 17:20 MST-7 Hail 1.75 in. 0 0 0.00K 0.00K
PINIELE CARTER CO. MT 06/20/2010 17:35 MST-7 Hail 1.75 in. 0 0 0.00K 0.00K
RIDGEWAY CARTER CO. MT 06/20/2010 20:00 MST-7 Flash Flood 0 0 0.00K 0.00K
Totals: 0 0 32.700M 0.00K