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Storm Events Database
Event Details
| Event | Hail |
| Magnitude | 1.25 in. |
| State | MONTANA |
| County/Area | SWEET GRASS |
| WFO | BYZ |
| Begin Date | 05/13/2007 15:12:00 MST-7 |
| Begin Range | 16 |
| Begin Azimuth | WNW |
| Begin Location | BIG TIMBER ARPT |
| Begin Lat/Lon | 45.89/-110.28 |
| End Date | 05/13/2007 15:12:00 MST-7 |
| Deaths Direct/Indirect | 0/0 (fatality details below, when available...) |
| Injuries Direct/Indirect | 0/0 |
| Property Damage | 0.00K |
| Crop Damage | 0.00K |
| Episode Narrative | A strong cold front and upper level disturbance moved across the central and eastern counties in the Billings County Warning Area during the late afternoon and evening hours of the 13th. Several thunderstorms developed across Northern Stillwater and Sweet Grass Counties before evolving into Supercell thunderstorms over Northern Yellowstone County. These thunderstorms then merged into a squall line across Eastern Yellowstone County and Treasure County before moving across Rosebud, Custer and Fallon Counties. Very large hail and damaging winds accompanied these thunderstorms with widespread damage reported across these areas. |
| Event Narrative |
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 | |||||||
| (LVM)LIVINGSTON ARPT | PARK CO. | MT | 05/13/2007 | 14:12 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| (LVM)LIVINGSTON ARPT | PARK CO. | MT | 05/13/2007 | 14:15 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| BIG TIMBER | SWEET GRASS CO. | MT | 05/13/2007 | 14:54 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| BIG TIMBER | SWEET GRASS CO. | MT | 05/13/2007 | 14:56 | MST-7 | Hail | 0.88 in. | 0 | 0 | 0.00K | 0.00K |
| BIG TIMBER | SWEET GRASS CO. | MT | 05/13/2007 | 15:00 | MST-7 | Hail | 0.88 in. | 0 | 0 | 0.00K | 0.00K |
| GREYCLIFF | SWEET GRASS CO. | MT | 05/13/2007 | 15:07 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| BIG TIMBER | SWEET GRASS CO. | MT | 05/13/2007 | 15:09 | MST-7 | Hail | 0.75 in. | 0 | 0 | 0.00K | 0.00K |
| GREYCLIFF | SWEET GRASS CO. | MT | 05/13/2007 | 15:10 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| BIG TIMBER ARPT | SWEET GRASS CO. | MT | 05/13/2007 | 15:12 | MST-7 | Hail | 1.25 in. | 0 | 0 | 0.00K | 0.00K |
| GREYCLIFF | SWEET GRASS CO. | MT | 05/13/2007 | 15:50 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| RYEGATE | GOLDEN VALLEY CO. | MT | 05/13/2007 | 16:00 | MST-7 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| RAPELJE | STILLWATER CO. | MT | 05/13/2007 | 16:05 | MST-7 | Thunderstorm Wind | 66 kts. MG | 0 | 0 | 0.00K | 0.00K |
| GREYCLIFF | SWEET GRASS CO. | MT | 05/13/2007 | 16:05 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| REED PT | STILLWATER CO. | MT | 05/13/2007 | 16:10 | MST-7 | Hail | 0.88 in. | 0 | 0 | 0.00K | 0.00K |
| RIMROCK | YELLOWSTONE CO. | MT | 05/13/2007 | 16:20 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| RAPELJE | STILLWATER CO. | MT | 05/13/2007 | 16:30 | MST-7 | Hail | 1.75 in. | 0 | 0 | 0.00K | 0.00K |
| RAPELJE | STILLWATER CO. | MT | 05/13/2007 | 16:30 | MST-7 | Thunderstorm Wind | 66 kts. MG | 0 | 0 | 0.00K | 0.00K |
| COMANCHE | YELLOWSTONE CO. | MT | 05/13/2007 | 16:36 | MST-7 | Hail | 1.25 in. | 0 | 0 | 0.00K | 0.00K |
| RIMROCK | YELLOWSTONE CO. | MT | 05/13/2007 | 16:41 | MST-7 | Hail | 1.75 in. | 0 | 0 | 0.00K | 0.00K |
| LAUREL | YELLOWSTONE CO. | MT | 05/13/2007 | 16:45 | MST-7 | Hail | 1.75 in. | 0 | 0 | 0.00K | 0.00K |
| PARK CITY | STILLWATER CO. | MT | 05/13/2007 | 16:55 | MST-7 | Hail | 1.75 in. | 0 | 0 | 0.00K | 0.00K |
| BALLANTINE | YELLOWSTONE CO. | MT | 05/13/2007 | 16:59 | MST-7 | Hail | 0.88 in. | 0 | 0 | 0.00K | 0.00K |
| BALLANTINE | YELLOWSTONE CO. | MT | 05/13/2007 | 17:04 | MST-7 | Hail | 1.75 in. | 0 | 0 | 0.00K | 0.00K |
| WORDEN | YELLOWSTONE CO. | MT | 05/13/2007 | 17:10 | MST-7 | Hail | 0.88 in. | 0 | 0 | 0.00K | 0.00K |
| WORDEN | YELLOWSTONE CO. | MT | 05/13/2007 | 17:10 | MST-7 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| SHEPHERD | YELLOWSTONE CO. | MT | 05/13/2007 | 17:11 | MST-7 | Hail | 1.25 in. | 0 | 0 | 0.00K | 0.00K |
| WORDEN | YELLOWSTONE CO. | MT | 05/13/2007 | 17:15 | MST-7 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| WORDEN | YELLOWSTONE CO. | MT | 05/13/2007 | 17:15 | MST-7 | Hail | 1.75 in. | 0 | 0 | 0.00K | 0.00K |
| WORDEN | YELLOWSTONE CO. | MT | 05/13/2007 | 17:15 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| SHEPHERD | YELLOWSTONE CO. | MT | 05/13/2007 | 17:18 | MST-7 | Hail | 1.75 in. | 0 | 0 | 0.00K | 0.00K |
| POMPEYS PILLAR | YELLOWSTONE CO. | MT | 05/13/2007 | 17:19 | MST-7 | Thunderstorm Wind | 63 kts. MG | 0 | 0 | 0.00K | 0.00K |
| BALLANTINE | YELLOWSTONE CO. | MT | 05/13/2007 | 17:21 | MST-7 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| BALLANTINE | YELLOWSTONE CO. | MT | 05/13/2007 | 17:21 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| BILLINGS | YELLOWSTONE CO. | MT | 05/13/2007 | 17:23 | MST-7 | Hail | 0.75 in. | 0 | 0 | 0.00K | 0.00K |
| POMPEYS PILLAR | YELLOWSTONE CO. | MT | 05/13/2007 | 17:23 | MST-7 | Thunderstorm Wind | 61 kts. MG | 0 | 0 | 0.00K | 0.00K |
| BILLINGS | YELLOWSTONE CO. | MT | 05/13/2007 | 17:42 | MST-7 | Hail | 0.88 in. | 0 | 0 | 0.00K | 0.00K |
| CUSTER | YELLOWSTONE CO. | MT | 05/13/2007 | 17:50 | MST-7 | Hail | 0.88 in. | 0 | 0 | 0.00K | 0.00K |
| DELPHIA | MUSSELSHELL CO. | MT | 05/13/2007 | 17:55 | MST-7 | Hail | 1.50 in. | 0 | 0 | 0.00K | 0.00K |
| POMPEYS PILLAR | YELLOWSTONE CO. | MT | 05/13/2007 | 17:55 | MST-7 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| HARDIN | BIG HORN CO. | MT | 05/13/2007 | 17:57 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| BILLINGS | YELLOWSTONE CO. | MT | 05/13/2007 | 18:00 | MST-7 | Thunderstorm Wind | 56 kts. MG | 0 | 0 | 0.00K | 0.00K |
| HARDIN | BIG HORN CO. | MT | 05/13/2007 | 18:00 | MST-7 | Hail | 0.88 in. | 0 | 0 | 0.00K | 0.00K |
| HARDIN | BIG HORN CO. | MT | 05/13/2007 | 18:10 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| FORSYTH | ROSEBUD CO. | MT | 05/13/2007 | 18:12 | MST-7 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| HYSHAM | TREASURE CO. | MT | 05/13/2007 | 18:12 | MST-7 | Thunderstorm Wind | 50 kts. MG | 0 | 0 | 0.00K | 0.00K |
| ROSEBUD | ROSEBUD CO. | MT | 05/13/2007 | 18:20 | MST-7 | Hail | 0.75 in. | 0 | 0 | 0.00K | 0.00K |
| HATHAWAY | ROSEBUD CO. | MT | 05/13/2007 | 18:31 | MST-7 | Hail | 1.75 in. | 0 | 0 | 0.00K | 0.00K |
| MILES CITY | CUSTER CO. | MT | 05/13/2007 | 18:36 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| COLSTRIP | ROSEBUD CO. | MT | 05/13/2007 | 18:43 | MST-7 | Hail | 0.88 in. | 0 | 0 | 0.00K | 0.00K |
| COLSTRIP | ROSEBUD CO. | MT | 05/13/2007 | 18:43 | MST-7 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| FORSYTH | ROSEBUD CO. | MT | 05/13/2007 | 18:48 | MST-7 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| VANANDA | ROSEBUD CO. | MT | 05/13/2007 | 18:50 | MST-7 | Hail | 1.25 in. | 0 | 0 | 0.00K | 0.00K |
| FORSYTH | ROSEBUD CO. | MT | 05/13/2007 | 19:00 | MST-7 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| ANGELA | ROSEBUD CO. | MT | 05/13/2007 | 19:12 | MST-7 | Thunderstorm Wind | 56 kts. EG | 0 | 0 | 0.00K | 0.00K |
| COLSTRIP | ROSEBUD CO. | MT | 05/13/2007 | 19:32 | MST-7 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| (MLS)WILEY FLD MILES | CUSTER CO. | MT | 05/13/2007 | 20:00 | MST-7 | Thunderstorm Wind | 56 kts. MG | 0 | 0 | 0.00K | 0.00K |
| (MLS)WILEY FLD MILES | CUSTER CO. | MT | 05/13/2007 | 20:00 | MST-7 | Thunderstorm Wind | 66 kts. MG | 0 | 0 | 0.00K | 0.00K |
| MILES CITY | CUSTER CO. | MT | 05/13/2007 | 20:35 | MST-7 | Thunderstorm Wind | 65 kts. MG | 0 | 0 | 0.00K | 0.00K |
| BAKER | FALLON CO. | MT | 05/13/2007 | 20:37 | MST-7 | Hail | 0.88 in. | 0 | 0 | 0.00K | 0.00K |
| FORSYTH | ROSEBUD CO. | MT | 05/13/2007 | 20:40 | MST-7 | Flash Flood | 0 | 0 | 0.00K | 0.00K | |
| BAKER | FALLON CO. | MT | 05/13/2007 | 20:56 | MST-7 | Thunderstorm Wind | 56 kts. MG | 0 | 0 | 0.00K | 0.00K |
| FORSYTH | ROSEBUD CO. | MT | 05/13/2007 | 21:00 | MST-7 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| WILLARD | FALLON CO. | MT | 05/13/2007 | 21:00 | MST-7 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| EKALAKA | CARTER CO. | MT | 05/13/2007 | 21:00 | MST-7 | Thunderstorm Wind | 52 kts. MG | 0 | 0 | 0.00K | 0.00K |
| WILLARD | FALLON CO. | MT | 05/13/2007 | 21:00 | MST-7 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| BAKER | FALLON CO. | MT | 05/13/2007 | 21:04 | MST-7 | Thunderstorm Wind | 65 kts. MG | 0 | 0 | 0.00K | 0.00K |
| BAKER | FALLON CO. | MT | 05/13/2007 | 21:12 | MST-7 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| BAKER | FALLON CO. | MT | 05/13/2007 | 21:14 | MST-7 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| BAKER | FALLON CO. | MT | 05/13/2007 | 22:00 | MST-7 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| FORSYTH | ROSEBUD CO. | MT | 05/13/2007 | 22:39 | MST-7 | Flash Flood | 0 | 0 | 0.00K | 0.00K | |
| Totals: | 0 | 0 | 0.00K | 0.00K |


