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Storm Events Database
Event Details:
| Event | Tornado |
| -- Scale | EFU |
| -- Length | 1.91 Miles |
| -- Width | 20 Yards |
| State | MINNESOTA |
| County/Area | MURRAY |
| WFO | FSD |
| Report Source | NWS Storm Survey |
| NCEI Data Source | CSV |
| Begin Date | 2021-08-28 16:40 CST-6 |
| Begin Location | 4NE AVOCA |
| Begin Lat/Lon | 43.992/-95.627 |
| End Date | 2021-08-28 16:43 CST-6 |
| End Location | 4WSW DOVRAY |
| End Lat/Lon | 44.019/-95.621 |
| Deaths Direct/Indirect | 0/0 (fatality details below, when available...) |
| Injuries Direct/Indirect | 0/0 |
| Property Damage | |
| Crop Damage | |
| Episode Narrative | An unstable warm sector with MUCAPE up to 2000-2500 J/kg developed during the afternoon between an advancing cold front across southeast South Dakota, and a gangly warm front extending into southwest Minnesota. An approaching weak impulse spurred rapid development of multiple rounds of storms near the warm front, initially discrete, with upscale growth into short bowing segments. Secondary development occurred during the evening along the cold front, which evolved into a slow-moving linear system with hail, wind, and heavy rainfall with shear vectors increasingly parallel to the boundary. |
| Event Narrative | A brief tornado started around 3 miles north-northeast of Avoca near 101st St., one-quarter mile west of 220th Avenue. The tornado traveled north-northeast over open farmland for just under two miles with damage limited to crops, then lifted just southwest of the intersection of 121st Street and 225th Avenue. Based on Sentinel satellite imagery, the average path width was 20 yards. |
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 | 64.00K | 1.148M | |||||||
| BEAVER CREEK | ROCK CO. | MN | 08/28/2021 | 15:57 | CST-6 | Thunderstorm Wind | 59 kts. MG | 0 | 0 | 0.00K | 0.00K |
| BEAVER CREEK | ROCK CO. | MN | 08/28/2021 | 15:57 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 100.00K |
| LUVERNE ARPT | ROCK CO. | MN | 08/28/2021 | 16:00 | CST-6 | Thunderstorm Wind | 53 kts. MG | 0 | 0 | 0.00K | 0.00K |
| LUVERNE ARPT | ROCK CO. | MN | 08/28/2021 | 16:03 | CST-6 | Thunderstorm Wind | 53 kts. MG | 0 | 0 | 0.00K | 12.00K |
| MAGNOLIA | ROCK CO. | MN | 08/28/2021 | 16:08 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| HARDWICK | ROCK CO. | MN | 08/28/2021 | 16:11 | CST-6 | Thunderstorm Wind | 59 kts. MG | 0 | 0 | 0.00K | 12.00K |
| ADRIAN | NOBLES CO. | MN | 08/28/2021 | 16:21 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| CHANDLER | MURRAY CO. | MN | 08/28/2021 | 16:21 | CST-6 | Thunderstorm Wind | 56 kts. EG | 0 | 0 | 0.00K | 0.00K |
| CHANDLER | MURRAY CO. | MN | 08/28/2021 | 16:22 | CST-6 | Thunderstorm Wind | 65 kts. EG | 0 | 0 | 25.00K | 0.00K |
| ADRIAN | NOBLES CO. | MN | 08/28/2021 | 16:23 | CST-6 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 5.00K | 0.00K |
| CHANDLER | MURRAY CO. | MN | 08/28/2021 | 16:23 | CST-6 | Thunderstorm Wind | 66 kts. EG | 0 | 0 | 4.00K | 0.00K |
| HADLEY | MURRAY CO. | MN | 08/28/2021 | 16:28 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 275.00K |
| IONA | MURRAY CO. | MN | 08/28/2021 | 16:29 | CST-6 | Tornado | EFU | 0 | 0 | 0.00K | 0.00K |
| IONA | MURRAY CO. | MN | 08/28/2021 | 16:30 | CST-6 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| IONA | MURRAY CO. | MN | 08/28/2021 | 16:33 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| AVOCA | MURRAY CO. | MN | 08/28/2021 | 16:36 | CST-6 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 10.00K | 0.00K |
| READING | NOBLES CO. | MN | 08/28/2021 | 16:37 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| AVOCA | MURRAY CO. | MN | 08/28/2021 | 16:38 | CST-6 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| HILLS | ROCK CO. | MN | 08/28/2021 | 16:38 | CST-6 | Hail | 1.00 in. | 0 | 0 | 0.00K | 0.00K |
| AVOCA | MURRAY CO. | MN | 08/28/2021 | 16:40 | CST-6 | Tornado | EFU | 0 | 0 | 0.00K | 0.00K |
| HILLS | ROCK CO. | MN | 08/28/2021 | 16:40 | CST-6 | Thunderstorm Wind | 65 kts. EG | 0 | 0 | 0.00K | 0.00K |
| SLAYTON | MURRAY CO. | MN | 08/28/2021 | 16:40 | CST-6 | Thunderstorm Wind | 52 kts. MG | 0 | 0 | 0.00K | 0.00K |
| SLAYTON | MURRAY CO. | MN | 08/28/2021 | 16:43 | CST-6 | Thunderstorm Wind | 56 kts. EG | 0 | 0 | 0.00K | 0.00K |
| WESTBROOK | COTTONWOOD CO. | MN | 08/28/2021 | 16:46 | CST-6 | Thunderstorm Wind | 56 kts. EG | 0 | 0 | 20.00K | 0.00K |
| DOVRAY | MURRAY CO. | MN | 08/28/2021 | 16:48 | CST-6 | Tornado | EFU | 0 | 0 | 0.00K | 0.00K |
| WESTBROOK | COTTONWOOD CO. | MN | 08/28/2021 | 16:48 | CST-6 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| DOVRAY | MURRAY CO. | MN | 08/28/2021 | 16:49 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| DOVRAY | MURRAY CO. | MN | 08/28/2021 | 16:50 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| WESTBROOK | COTTONWOOD CO. | MN | 08/28/2021 | 16:50 | CST-6 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| DOVRAY | MURRAY CO. | MN | 08/28/2021 | 16:53 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| DOVRAY | MURRAY CO. | MN | 08/28/2021 | 16:53 | CST-6 | Tornado | EFU | 0 | 0 | 0.00K | 0.00K |
| STORDEN | COTTONWOOD CO. | MN | 08/28/2021 | 16:54 | CST-6 | Thunderstorm Wind | 70 kts. EG | 0 | 0 | 0.00K | 0.00K |
| WESTBROOK | COTTONWOOD CO. | MN | 08/28/2021 | 16:55 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| STORDEN | COTTONWOOD CO. | MN | 08/28/2021 | 16:58 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| JEFFERS | COTTONWOOD CO. | MN | 08/28/2021 | 17:03 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| JEFFERS | COTTONWOOD CO. | MN | 08/28/2021 | 17:03 | CST-6 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| STORDEN | COTTONWOOD CO. | MN | 08/28/2021 | 17:03 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| STORDEN | COTTONWOOD CO. | MN | 08/28/2021 | 17:03 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 650.00K |
| JEFFERS | COTTONWOOD CO. | MN | 08/28/2021 | 17:04 | CST-6 | Tornado | EFU | 0 | 0 | 0.00K | 0.00K |
| WINDOM | COTTONWOOD CO. | MN | 08/28/2021 | 17:06 | CST-6 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| WINDOM MUNI ARPT | COTTONWOOD CO. | MN | 08/28/2021 | 17:06 | CST-6 | Thunderstorm Wind | 57 kts. MG | 0 | 0 | 0.00K | 0.00K |
| STORDEN | COTTONWOOD CO. | MN | 08/28/2021 | 17:07 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| JEFFERS | COTTONWOOD CO. | MN | 08/28/2021 | 17:10 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| JEFFERS | COTTONWOOD CO. | MN | 08/28/2021 | 17:11 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| JEFFERS | COTTONWOOD CO. | MN | 08/28/2021 | 17:11 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| IHLEN | PIPESTONE CO. | MN | 08/28/2021 | 17:20 | CST-6 | Thunderstorm Wind | 56 kts. EG | 0 | 0 | 0.00K | 76.00K |
| IHLEN | PIPESTONE CO. | MN | 08/28/2021 | 17:20 | CST-6 | Hail | 1.00 in. | 0 | 0 | 0.00K | 4.00K |
| CURRANT LAKE | MURRAY CO. | MN | 08/28/2021 | 18:36 | CST-6 | Hail | 3.50 in. | 0 | 0 | 0.00K | 0.00K |
| CURRANT LAKE | MURRAY CO. | MN | 08/28/2021 | 18:40 | CST-6 | Hail | 2.25 in. | 0 | 0 | 0.00K | 19.00K |
| CURRANT LAKE | MURRAY CO. | MN | 08/28/2021 | 18:41 | CST-6 | Hail | 3.75 in. | 0 | 0 | 0.00K | 0.00K |
| HILLS | ROCK CO. | MN | 08/28/2021 | 19:08 | CST-6 | Hail | 1.75 in. | 0 | 0 | 0.00K | 0.00K |
| CURRIE | MURRAY CO. | MN | 08/28/2021 | 19:21 | CST-6 | Hail | 1.75 in. | 0 | 0 | 0.00K | 0.00K |
| DOVRAY | MURRAY CO. | MN | 08/28/2021 | 19:27 | CST-6 | Thunderstorm Wind | 51 kts. MG | 0 | 0 | 0.00K | 0.00K |
| PIPESTONE ARPT | PIPESTONE CO. | MN | 08/28/2021 | 20:55 | CST-6 | Flash Flood | 0 | 0 | 0.00K | 0.00K | |
| AVOCA | MURRAY CO. | MN | 08/28/2021 | 22:00 | CST-6 | Flash Flood | 0 | 0 | 0.00K | 0.00K | |
| Totals: | 0 | 0 | 64.00K | 1.148M |
