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Storm Events Database
Event Details
| Event | Hail |
| Magnitude | 2.50 in. |
| State | WYOMING |
| County/Area | BIG HORN |
| WFO | RIW |
| Begin Date | 08/07/2009 16:15:00 MST-7 |
| Begin Range | 0 |
| Begin Azimuth | SE |
| Begin Location | GREYBULL |
| Begin Lat/Lon | 44.49/-108.04 |
| End Date | 08/07/2009 16:15:00 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 large upper level low spinning slowly east from southern Idaho helped to trigger severe thunderstorms across the north half of Wyoming. Surface dew points in the 50s (degrees F), a favorable jet stream location, and a front sliding south from Montana all combined to set the stage for thunderstorms. The storms formed late in the afternoon and persisted through the evening and into the early morning hours. |
| Event Narrative | Hail of 2.00 to 2.50 inches was measured on the east side of the Greybull River above Greybull. |
All events for this episode:
| Location | County/Zone | St. | Date | Time | T.Z. | Type | Mag | Dth | Inj | PrD | CrD |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Totals: | 0 | 1 | 78.00K | 25.00K | |||||||
| BURLINGTON | BIG HORN CO. | WY | 08/07/2009 | 15:44 | MST-7 | Hail | 1.25 in. | 0 | 0 | 0.00K | 25.00K |
| OTTO | BIG HORN CO. | WY | 08/07/2009 | 15:51 | MST-7 | Hail | 1.25 in. | 0 | 0 | 0.00K | 0.00K |
| GREYBULL | BIG HORN CO. | WY | 08/07/2009 | 16:10 | MST-7 | Hail | 2.00 in. | 0 | 1 | 75.00K | 0.00K |
| GREYBULL | BIG HORN CO. | WY | 08/07/2009 | 16:15 | MST-7 | Hail | 2.50 in. | 0 | 0 | 0.00K | 0.00K |
| GREYBULL | BIG HORN CO. | WY | 08/07/2009 | 16:17 | MST-7 | Hail | 2.00 in. | 0 | 0 | 2.00K | 0.00K |
| GREYBULL ARPT | BIG HORN CO. | WY | 08/07/2009 | 16:24 | MST-7 | Thunderstorm Wind | 51 kts. MG | 0 | 0 | 0.00K | 0.00K |
| KAYCEE GOSNEY ARPT | JOHNSON CO. | WY | 08/07/2009 | 21:20 | MST-7 | Hail | 2.00 in. | 0 | 0 | 1.00K | 0.00K |
| MAYOWORTH | JOHNSON CO. | WY | 08/07/2009 | 21:25 | MST-7 | Hail | 0.88 in. | 0 | 0 | 0.00K | 0.00K |
| BUFFALO | JOHNSON CO. | WY | 08/07/2009 | 22:20 | MST-7 | Hail | 1.75 in. | 0 | 0 | 0.00K | 0.00K |
| CASPER HARFORD ARPT | NATRONA CO. | WY | 08/08/2009 | 01:10 | MST-7 | Hail | 0.88 in. | 0 | 0 | 0.00K | 0.00K |
| Totals: | 0 | 1 | 78.00K | 25.00K |
