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Storm Events Database
Event Details:
| Event | Tornado |
| -- Scale | EF1 |
| -- Length | 3.96 Miles |
| -- Width | 50 Yards |
| State | IOWA |
| County/Area | DICKINSON |
| WFO | FSD |
| Report Source | Emergency Manager |
| NCEI Data Source | CSV |
| Begin Date | 2021-12-15 17:39 CST-6 |
| Begin Location | 5SE FULLER FLD ARPT |
| Begin Lat/Lon | 43.265/-95.088 |
| End Date | 2021-12-15 17:43 CST-6 |
| End Location | 3E FULLER FLD ARPT |
| End Lat/Lon | 43.322/-95.087 |
| Deaths Direct/Indirect | 0/0 (fatality details below, when available...) |
| Injuries Direct/Indirect | 0/0 |
| Property Damage | 200.00K |
| Crop Damage | 0.00K |
| Episode Narrative | An unprecedented storm system lifted across the central Plains from December 15 into the early hours of December 16. Kinematic fields were at the top of the climatological distributions, leading to extreme wind shear in the lowest levels. Ahead of the system, record high temperatures with surface dew point values into the 50s and lower 60s surged toward northwest Iowa and resulted in instability not typically found in December. A serial derecho developed across Nebraska and Kansas during the early afternoon and raced to the northeast toward Iowa and Minnesota, with widespread damaging wind and a few tornadoes. The first Storm Prediction Center moderate risk, as well as severe thunderstorm and tornado warnings during December, were issued for the Sioux Falls warning area. There was even remaining snow cover in parts of northwest Iowa north of Highway 18 and into southwest Minnesota as the severe storms evolved during the afternoon and evening hours. As the cold front swung through the area behind the convective line, 60 to 75 mph winds aloft were mixed to the surface and resulted in a few synoptic wind gusts up to hurricane force. Some light wintry precipitation also fell during the transition toward the much colder air, which led to flash freezing as temperatures fell as much as 40 degrees during the overnight hours. |
| Event Narrative | A tornado spun up 3 miles east-northeast of Fostoria one-half mile south of 260th Street east of 250th Avenue. The tornado tracked north just east of 250th Avenue, and snapped several power poles along 260th and 250th Streets. Two farms between 250th and 240th Streets were struck by the tornado, which peeled back the roof of an outbuilding and damaged several large trees. The most significant damage occurred along 235th Street where a portion of the south-facing roof was removed from a house and an outbuilding to the north of the house was destroyed. The tornado tracked through open fields for another mile before it lifted 2 miles east of Milford. The average path width was 25 yards and the maximum estimated wind speed was 100 mph. Property damage costs are a rough estimate. |
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 | 4.010M | 0.00K | |||||||
| SALIX | WOODBURY CO. | IA | 12/15/2021 | 16:15 | CST-6 | Tornado | EFU | 0 | 0 | 0.00K | 0.00K |
| HORNICK | WOODBURY CO. | IA | 12/15/2021 | 16:19 | CST-6 | Thunderstorm Wind | 65 kts. EG | 0 | 0 | 25.00K | 0.00K |
| SALIX | WOODBURY CO. | IA | 12/15/2021 | 16:20 | CST-6 | Tornado | EF1 | 0 | 0 | 250.00K | 0.00K |
| SIOUX CITY | WOODBURY CO. | IA | 12/15/2021 | 16:21 | CST-6 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| (SUX)SIOUX CITY ARPT | WOODBURY CO. | IA | 12/15/2021 | 16:23 | CST-6 | Thunderstorm Wind | 71 kts. MG | 0 | 0 | 0.00K | 0.00K |
| BRONSON | WOODBURY CO. | IA | 12/15/2021 | 16:23 | CST-6 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 25.00K | 0.00K |
| BRONSON | WOODBURY CO. | IA | 12/15/2021 | 16:25 | CST-6 | Tornado | EF2 | 0 | 0 | 500.00K | 0.00K |
| SIOUX CITY | WOODBURY CO. | IA | 12/15/2021 | 16:25 | CST-6 | Thunderstorm Wind | 65 kts. EG | 0 | 0 | 10.00K | 0.00K |
| LAWTON | WOODBURY CO. | IA | 12/15/2021 | 16:28 | CST-6 | Thunderstorm Wind | 69 kts. EG | 0 | 0 | 25.00K | 0.00K |
| LAWTON | WOODBURY CO. | IA | 12/15/2021 | 16:28 | CST-6 | Thunderstorm Wind | 70 kts. EG | 0 | 0 | 25.00K | 0.00K |
| LAWTON | WOODBURY CO. | IA | 12/15/2021 | 16:31 | CST-6 | Thunderstorm Wind | 69 kts. EG | 0 | 0 | 10.00K | 0.00K |
| ANTHON | WOODBURY CO. | IA | 12/15/2021 | 16:34 | CST-6 | Thunderstorm Wind | 74 kts. EG | 0 | 0 | 75.00K | 0.00K |
| MOVILLE | WOODBURY CO. | IA | 12/15/2021 | 16:35 | CST-6 | Tornado | EF1 | 0 | 0 | 200.00K | 0.00K |
| DANBURY | WOODBURY CO. | IA | 12/15/2021 | 16:38 | CST-6 | Thunderstorm Wind | 64 kts. EG | 0 | 0 | 10.00K | 0.00K |
| KINGSLEY | PLYMOUTH CO. | IA | 12/15/2021 | 16:38 | CST-6 | Thunderstorm Wind | 72 kts. EG | 0 | 0 | 0.00K | 0.00K |
| KINGSLEY | PLYMOUTH CO. | IA | 12/15/2021 | 16:39 | CST-6 | Tornado | EF1 | 0 | 0 | 50.00K | 0.00K |
| KINGSLEY | PLYMOUTH CO. | IA | 12/15/2021 | 16:39 | CST-6 | Thunderstorm Wind | 72 kts. EG | 0 | 0 | 25.00K | 0.00K |
| KINGSLEY | PLYMOUTH CO. | IA | 12/15/2021 | 16:39 | CST-6 | Thunderstorm Wind | 78 kts. EG | 0 | 0 | 20.00K | 0.00K |
| KINGSLEY | PLYMOUTH CO. | IA | 12/15/2021 | 16:40 | CST-6 | Thunderstorm Wind | 82 kts. EG | 0 | 0 | 30.00K | 0.00K |
| KINGSLEY | PLYMOUTH CO. | IA | 12/15/2021 | 16:40 | CST-6 | Thunderstorm Wind | 83 kts. EG | 0 | 0 | 35.00K | 0.00K |
| KINGSLEY | PLYMOUTH CO. | IA | 12/15/2021 | 16:41 | CST-6 | Thunderstorm Wind | 74 kts. EG | 0 | 0 | 25.00K | 0.00K |
| KINGSLEY | PLYMOUTH CO. | IA | 12/15/2021 | 16:41 | CST-6 | Thunderstorm Wind | 72 kts. EG | 0 | 0 | 30.00K | 0.00K |
| BATTLE CREEK | IDA CO. | IA | 12/15/2021 | 16:42 | CST-6 | Tornado | EF1 | 0 | 0 | 200.00K | 0.00K |
| KINGSLEY | PLYMOUTH CO. | IA | 12/15/2021 | 16:44 | CST-6 | Thunderstorm Wind | 65 kts. EG | 0 | 0 | 25.00K | 0.00K |
| KINGSLEY | PLYMOUTH CO. | IA | 12/15/2021 | 16:44 | CST-6 | Thunderstorm Wind | 69 kts. EG | 0 | 0 | 20.00K | 0.00K |
| FIELDING | CHEROKEE CO. | IA | 12/15/2021 | 16:46 | CST-6 | Thunderstorm Wind | 74 kts. EG | 0 | 0 | 0.00K | 0.00K |
| KINGSLEY | PLYMOUTH CO. | IA | 12/15/2021 | 16:47 | CST-6 | Thunderstorm Wind | 64 kts. EG | 0 | 0 | 5.00K | 0.00K |
| MARY HILL | CHEROKEE CO. | IA | 12/15/2021 | 16:53 | CST-6 | Thunderstorm Wind | 83 kts. EG | 0 | 0 | 15.00K | 0.00K |
| MARCUS | CHEROKEE CO. | IA | 12/15/2021 | 16:56 | CST-6 | Thunderstorm Wind | 70 kts. EG | 0 | 0 | 50.00K | 0.00K |
| MERIDEN | CHEROKEE CO. | IA | 12/15/2021 | 16:56 | CST-6 | Thunderstorm Wind | 83 kts. EG | 0 | 0 | 30.00K | 0.00K |
| GALVA | IDA CO. | IA | 12/15/2021 | 16:58 | CST-6 | Tornado | EF0 | 0 | 0 | 75.00K | 0.00K |
| AURELIA | CHEROKEE CO. | IA | 12/15/2021 | 16:59 | CST-6 | Tornado | EF1 | 0 | 0 | 1.000M | 0.00K |
| AURELIA | CHEROKEE CO. | IA | 12/15/2021 | 17:00 | CST-6 | Tornado | EFU | 0 | 0 | 0.00K | 0.00K |
| HANOVER | BUENA VISTA CO. | IA | 12/15/2021 | 17:01 | CST-6 | Tornado | EF1 | 0 | 0 | 200.00K | 0.00K |
| HANOVER | BUENA VISTA CO. | IA | 12/15/2021 | 17:01 | CST-6 | Thunderstorm Wind | 64 kts. EG | 0 | 0 | 0.00K | 0.00K |
| AURELIA | CHEROKEE CO. | IA | 12/15/2021 | 17:02 | CST-6 | Thunderstorm Wind | 87 kts. EG | 0 | 0 | 0.00K | 0.00K |
| AURELIA | CHEROKEE CO. | IA | 12/15/2021 | 17:02 | CST-6 | Thunderstorm Wind | 78 kts. EG | 0 | 0 | 30.00K | 0.00K |
| AURELIA | CHEROKEE CO. | IA | 12/15/2021 | 17:02 | CST-6 | Thunderstorm Wind | 87 kts. EG | 0 | 0 | 20.00K | 0.00K |
| AURELIA | CHEROKEE CO. | IA | 12/15/2021 | 17:03 | CST-6 | Thunderstorm Wind | 78 kts. EG | 0 | 0 | 30.00K | 0.00K |
| LARRABEE | CHEROKEE CO. | IA | 12/15/2021 | 17:05 | CST-6 | Tornado | EF1 | 0 | 0 | 250.00K | 0.00K |
| ALTA | BUENA VISTA CO. | IA | 12/15/2021 | 17:07 | CST-6 | Tornado | EF1 | 0 | 0 | 100.00K | 0.00K |
| STORM LAKE ARPT | BUENA VISTA CO. | IA | 12/15/2021 | 17:07 | CST-6 | Thunderstorm Wind | 56 kts. EG | 0 | 0 | 0.00K | 0.00K |
| CALUMET | O'BRIEN CO. | IA | 12/15/2021 | 17:08 | CST-6 | Tornado | EF1 | 0 | 0 | 50.00K | 0.00K |
| STORM LAKE ARPT | BUENA VISTA CO. | IA | 12/15/2021 | 17:08 | CST-6 | Thunderstorm Wind | 66 kts. EG | 0 | 0 | 0.00K | 0.00K |
| SUTHERLAND | O'BRIEN CO. | IA | 12/15/2021 | 17:11 | CST-6 | Thunderstorm Wind | 65 kts. EG | 0 | 0 | 30.00K | 0.00K |
| SUTHERLAND | O'BRIEN CO. | IA | 12/15/2021 | 17:12 | CST-6 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| PETERSON | CLAY CO. | IA | 12/15/2021 | 17:14 | CST-6 | Thunderstorm Wind | 76 kts. EG | 0 | 0 | 0.00K | 0.00K |
| PETERSON | CLAY CO. | IA | 12/15/2021 | 17:14 | CST-6 | Thunderstorm Wind | 65 kts. EG | 0 | 0 | 0.00K | 0.00K |
| PETERSON | CLAY CO. | IA | 12/15/2021 | 17:14 | CST-6 | Thunderstorm Wind | 56 kts. EG | 0 | 0 | 0.00K | 0.00K |
| REMBRANDT | BUENA VISTA CO. | IA | 12/15/2021 | 17:18 | CST-6 | Tornado | EF2 | 0 | 0 | 250.00K | 0.00K |
| ROYAL | CLAY CO. | IA | 12/15/2021 | 17:23 | CST-6 | Thunderstorm Wind | 70 kts. EG | 0 | 0 | 25.00K | 0.00K |
| MACLAY | CLAY CO. | IA | 12/15/2021 | 17:24 | CST-6 | Thunderstorm Wind | 64 kts. EG | 0 | 0 | 0.00K | 0.00K |
| ROYAL | CLAY CO. | IA | 12/15/2021 | 17:25 | CST-6 | Thunderstorm Wind | 65 kts. EG | 0 | 0 | 0.00K | 0.00K |
| SPENCER | CLAY CO. | IA | 12/15/2021 | 17:30 | CST-6 | Thunderstorm Wind | 70 kts. EG | 0 | 0 | 0.00K | 0.00K |
| WEST OKOBOJI | DICKINSON CO. | IA | 12/15/2021 | 17:35 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| FULLER FLD ARPT | DICKINSON CO. | IA | 12/15/2021 | 17:39 | CST-6 | Tornado | EF1 | 0 | 0 | 200.00K | 0.00K |
| SPIRIT LAKE | DICKINSON CO. | IA | 12/15/2021 | 17:49 | CST-6 | Thunderstorm Wind | 65 kts. EG | 0 | 0 | 10.00K | 0.00K |
| SUPERIOR | DICKINSON CO. | IA | 12/15/2021 | 17:52 | CST-6 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 25.00K | 0.00K |
| SIOUX (ZONE) | SIOUX (ZONE) | IA | 12/15/2021 | 19:55 | CST-6 | High Wind | 58 kts. MG | 0 | 0 | 0.00K | 0.00K |
| WOODBURY (ZONE) | WOODBURY (ZONE) | IA | 12/15/2021 | 20:20 | CST-6 | High Wind | 58 kts. MG | 0 | 0 | 0.00K | 0.00K |
| IDA (ZONE) | IDA (ZONE) | IA | 12/15/2021 | 20:30 | CST-6 | High Wind | 59 kts. MG | 0 | 0 | 0.00K | 0.00K |
| O'BRIEN (ZONE) | O'BRIEN (ZONE) | IA | 12/15/2021 | 20:35 | CST-6 | High Wind | 54 kts. MG | 0 | 0 | 0.00K | 0.00K |
| PLYMOUTH (ZONE) | PLYMOUTH (ZONE) | IA | 12/15/2021 | 20:35 | CST-6 | High Wind | 55 kts. MG | 0 | 0 | 0.00K | 0.00K |
| CHEROKEE (ZONE) | CHEROKEE (ZONE) | IA | 12/15/2021 | 20:40 | CST-6 | High Wind | 39 kts. MS | 0 | 0 | 0.00K | 0.00K |
| CLAY (ZONE) | CLAY (ZONE) | IA | 12/15/2021 | 20:45 | CST-6 | High Wind | 63 kts. MG | 0 | 0 | 0.00K | 0.00K |
| BUENA VISTA (ZONE) | BUENA VISTA (ZONE) | IA | 12/15/2021 | 21:00 | CST-6 | High Wind | 59 kts. MG | 0 | 0 | 0.00K | 0.00K |
| LYON (ZONE) | LYON (ZONE) | IA | 12/15/2021 | 21:00 | CST-6 | High Wind | 40 kts. MS | 0 | 0 | 0.00K | 0.00K |
| OSCEOLA (ZONE) | OSCEOLA (ZONE) | IA | 12/15/2021 | 21:00 | CST-6 | High Wind | 37 kts. MS | 0 | 0 | 0.00K | 0.00K |
| DICKINSON (ZONE) | DICKINSON (ZONE) | IA | 12/15/2021 | 22:00 | CST-6 | High Wind | 51 kts. MG | 0 | 0 | 0.00K | 0.00K |
| Totals: | 0 | 0 | 4.010M | 0.00K |
