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Storm Events Database
Event Details
| Event | Thunderstorm Wind |
| Magnitude | 52 kts. |
| State | NORTH DAKOTA |
| County/Area | DUNN |
| WFO | BIS |
| Begin Date | 07/29/2010 20:27:00 MST-7 |
| Begin Range | 0 |
| Begin Azimuth | W |
| Begin Location | HALLIDAY |
| Begin Lat/Lon | 47.35/-102.34 |
| End Date | 07/29/2010 20:36:00 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 Thunderstorm Watch number 550 was issued for much of west and north central North Dakota in the late afternoon hours of Thursday, July 29th. This was in anticipation of strong to severe thunderstorms over northeast Montana advecting east into western North Dakota Thursday evening along a trough of surface low pressure, with intensity sustained by an incoming mid level disturbance. Isolated severe thunderstorms initially moved into northwest North Dakota early Thursday evening, with convective activity transitioning into linear segments during the mid to late evening hours before dissipating. Multiple severe thunderstorm warnings were issued. Several reports of large hail and multiple reports of severe thunderstorm winds were received during this episode. |
| Event Narrative | Estimated winds of 60 mph were reported. |
All events for this episode:
| Location | County/Zone | St. | Date | Time | T.Z. | Type | Mag | Dth | Inj | PrD | CrD |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Totals: | 0 | 0 | 178.00K | 0.00K | |||||||
| WILLISTON | WILLIAMS CO. | ND | 07/29/2010 | 17:47 | CST-6 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| EPPING | WILLIAMS CO. | ND | 07/29/2010 | 18:15 | CST-6 | Hail | 2.50 in. | 0 | 0 | 50.00K | 0.00K |
| ALEXANDER | MCKENZIE CO. | ND | 07/29/2010 | 18:19 | MST-7 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 3.00K | 0.00K |
| WILLISTON | WILLIAMS CO. | ND | 07/29/2010 | 19:10 | CST-6 | Thunderstorm Wind | 53 kts. MG | 0 | 0 | 0.00K | 0.00K |
| GRASSY BUTTE | MCKENZIE CO. | ND | 07/29/2010 | 19:20 | MST-7 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 30.00K | 0.00K |
| WILLISTON | WILLIAMS CO. | ND | 07/29/2010 | 19:30 | CST-6 | Lightning | 0 | 0 | 25.00K | 0.00K | |
| GRASSY BUTTE | MCKENZIE CO. | ND | 07/29/2010 | 19:30 | MST-7 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| HALLIDAY | DUNN CO. | ND | 07/29/2010 | 20:27 | MST-7 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| ROSEGLEN | MCLEAN CO. | ND | 07/29/2010 | 21:06 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| DICKINSON | STARK CO. | ND | 07/29/2010 | 21:13 | MST-7 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| GRANO | RENVILLE CO. | ND | 07/29/2010 | 21:15 | CST-6 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| NORMA | RENVILLE CO. | ND | 07/29/2010 | 21:16 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| BEULAH | MERCER CO. | ND | 07/29/2010 | 21:54 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 70.00K | 0.00K |
| GARRISON | MCLEAN CO. | ND | 07/29/2010 | 21:55 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| GARRISON | MCLEAN CO. | ND | 07/29/2010 | 21:57 | CST-6 | Thunderstorm Wind | 56 kts. MG | 0 | 0 | 0.00K | 0.00K |
| HAZEN | MERCER CO. | ND | 07/29/2010 | 22:09 | CST-6 | Thunderstorm Wind | 56 kts. MG | 0 | 0 | 0.00K | 0.00K |
| HEBRON | MORTON CO. | ND | 07/29/2010 | 22:14 | CST-6 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| Totals: | 0 | 0 | 178.00K | 0.00K |
