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Storm Events Database
Event Details
| Event | Hail |
| Magnitude | 1.50 in. |
| State | WYOMING |
| County/Area | FREMONT |
| WFO | RIW |
| Begin Date | 06/13/2009 18:25:00 MST-7 |
| Begin Range | 14 |
| Begin Azimuth | SSE |
| Begin Location | RIVERTON |
| Begin Lat/Lon | 42.84/-108.27 |
| End Date | 06/13/2009 18:25:00 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 | Severe thunderstorms developed in a moist, upslope flow airmass east of the Continental Divide. The severity of the storms was aided by a disturbance that moved northeast across the area and a favorable jet stream position. |
| Event Narrative | Hail up to 1.50 inches in diameter was measured by a storm chaser. |
All events for this episode:
| Location | County/Zone | St. | Date | Time | T.Z. | Type | Mag | Dth | Inj | PrD | CrD |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Totals: | 0 | 0 | 2.00K | 0.00K | |||||||
| HILAND | NATRONA CO. | WY | 06/13/2009 | 14:46 | MST-7 | Thunderstorm Wind | 55 kts. MG | 0 | 0 | 0.00K | 0.00K |
| (RKS)ROCK SPGS ARPT | SWEETWATER CO. | WY | 06/13/2009 | 16:34 | MST-7 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| RIVERTON | FREMONT CO. | WY | 06/13/2009 | 18:25 | MST-7 | Thunderstorm Wind | 56 kts. EG | 0 | 0 | 0.00K | 0.00K |
| RIVERTON | FREMONT CO. | WY | 06/13/2009 | 18:25 | MST-7 | Hail | 1.50 in. | 0 | 0 | 0.00K | 0.00K |
| MILLS | NATRONA CO. | WY | 06/13/2009 | 19:20 | MST-7 | Hail | 0.88 in. | 0 | 0 | 0.00K | 0.00K |
| BAR NUNN | NATRONA CO. | WY | 06/13/2009 | 19:35 | MST-7 | Hail | 1.25 in. | 0 | 0 | 0.00K | 0.00K |
| CASPER | NATRONA CO. | WY | 06/13/2009 | 20:30 | MST-7 | Flash Flood | 0 | 0 | 2.00K | 0.00K | |
| Totals: | 0 | 0 | 2.00K | 0.00K |


