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Storm Events Database
Event Details:
| Event | Tornado |
| -- Scale | EF1 |
| -- Length | 2.1 Miles |
| -- Width | 250 Yards |
| State | MONTANA |
| County/Area | SHERIDAN |
| WFO | GGW |
| Report Source | NWS Storm Survey |
| NCEI Data Source | CSV |
| Begin Date | 2018-07-09 18:05 MST-7 |
| Begin Location | 1S PLENTYWOOD SHRWD ARP |
| Begin Lat/Lon | 48.7702/-104.5307 |
| End Date | 2018-07-09 18:09 MST-7 |
| End Location | 3SE PLENTYWOOD SHRWD ARP |
| End Lat/Lon | 48.7501/-104.4963 |
| 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 powerful shortwave trough combined with a moderately unstable air mass, producing showers and thunderstorms across the region. A few of these became severe in the evening, especially as the trough interacted with areas of higher dewpoints close to the North Dakota and Saskatchewan borders. The most significant storms were the supercells which impacted Sheridan County, bringing significant damage to the Plentywood area in the form of a macroburst and an EF-1 tornado. |
| Event Narrative | A short-lived, EF-1 tornado, with maximum estimated wind speeds of 110 mph moved nearly along Highway 16, on the southeast side of Plentywood. |
Event Map:
Note: The tornado track is approximate based on the beginning (B) and ending (E) locations. The actual tornado path may differ from a straight line.
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 | |||||||
| PLENTYWOOD SHRWD ARP | SHERIDAN CO. | MT | 07/09/2018 | 18:05 | MST-7 | Thunderstorm Wind | 103 kts. EG | 0 | 0 | 0.00K | 0.00K |
| PLENTYWOOD SHRWD ARP | SHERIDAN CO. | MT | 07/09/2018 | 18:05 | MST-7 | Tornado | EF1 | 0 | 0 | 0.00K | 0.00K |
| PLENTYWOOD SHRWD ARP | SHERIDAN CO. | MT | 07/09/2018 | 18:11 | MST-7 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| DAGMAR | SHERIDAN CO. | MT | 07/09/2018 | 18:40 | MST-7 | Hail | 1.50 in. | 0 | 0 | 0.00K | 0.00K |
| RESERVE | SHERIDAN CO. | MT | 07/09/2018 | 18:45 | MST-7 | Thunderstorm Wind | 75 kts. MG | 0 | 0 | 0.00K | 0.00K |
| MEDICINE LAKE RAWS | SHERIDAN CO. | MT | 07/09/2018 | 19:41 | MST-7 | Thunderstorm Wind | 60 kts. MG | 0 | 0 | 0.00K | 0.00K |
| PLENTYWOOD | SHERIDAN CO. | MT | 07/09/2018 | 19:55 | MST-7 | Hail | 1.75 in. | 0 | 0 | 0.00K | 0.00K |
| Totals: | 0 | 0 | 0.00K | 0.00K |
