Overview
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Thunderstorms that developed across western South Dakota and down across the Nebraska panhandle Tuesday afternoon (June 9th) eventually organized into a north-south oriented line of storms extending from north of Mobridge to south of the I-90 corridor. These storms produced widespread severe weather, including large hail and straight-line damaging winds, throughout the mid to late evening across portions of central and north central South Dakota and throughout the late evening into early overnight hours across northeast South Dakota into Minnesota. |
Photo Courtesy of Elias Hildebrant |
Tornadoes
Select a tornado from the table to zoom into the track and view more information. The default table view is limited to 8 tracks, but can be scrolled by a mouse wheel or dynamically expanded. Additionally, the table can fill the entire window by clicking the small circular expanding arrow icon at the very top right of the table and returned to its original size by clicking the button again. The side information panel that opens over the map can be closed using the "X" on the upper right corner of the pop-up. Zoom into the map and click damage points to see detailed information and pictures from the surveys.
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NOTE: times shown below are local to your device's time zone. |
The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories:
| EF0 Weak 65-85 mph |
EF1 Moderate 86-110 mph |
EF2 Significant 111-135 mph |
EF3 Severe 136-165 mph |
EF4 Extreme 166-200 mph |
EF5 Catastrophic 200+ mph |
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| Tornadoes that fail to impact any ratable damage indicators on the EF-Scale are rated EF-Unknown (EF-U) | |||||
Wind
As the line of storms moved east through central and northeastern South Dakota, sections of the storm started bowing, causing strong winds and lots of straight-line wind damage. Reported thunderstorm wind gusts got up around 60 to 90 mph with the 90 mph winds reported in Altamont, SD. There was copious amount of damage done to trees across northeastern South Dakota with damage to structures also occurring.
Wind Damage
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| Barn Roof Damage in Columbia: Photo Courtesy Of Brown County Emergency Manager | Downed Tree due to Wind 2 Miles North of Aberdeen: Photo Courtesy of Amber Olson | Tree Damage 7 Miles North Of Estelline: Photo Courtesy Of Alex Resel | Tree damage in Aberdeen: Photo Courtesy of Alissa Maynard |
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| Tree Uprooted In Columbia: Photo Courtesy Of Brown County Emergency Manager | Tree Damage 4 Miles North of Aberdeen: Photo Courtesy of Kyle Murphy | Damage to a building on a dairy farm in Goodwin: Photo Courtesy of Thomas Fieber | Roof and Door Damage on Machine Shed Northwest of Aberdeen: Photo Courtesy Of Brown County Emergency Manager |
Radar
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| Radar loop of the event with Severe Thunderstorm Warnings and Tornado Warnings overlaid. Loop courtesy of IEM. |
Storm Reports
Map of storm report type and location from June 9th & 10th.
Reports located below.
Preliminary Local Storm Report...Summary National Weather Service Aberdeen SD 418 PM CDT Wed Jun 10 2026 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0912 PM Hail Fort Pierre 44.36N 100.38W 06/09/2026 E1.00 Inch Stanley SD Emergency Mngr 1114 PM Tstm Wnd Gst 1 WNW Mellette 45.16N 98.51W 06/09/2026 M63 MPH Spink SD Mesonet Mesonet station 175 Mellette (SDDOT). 1115 PM Tstm Wnd Gst 1 SSW Redfield 44.86N 98.53W 06/09/2026 M59 MPH Spink SD AWOS AWOS station K1D8 Redfield Muni AP. 1115 PM Tstm Wnd Gst 3 NE Redfield 44.91N 98.48W 06/09/2026 E70 MPH Spink SD Emergency Mngr 1031 PM Tstm Wnd Gst 2 WSW Long Lake 45.84N 99.25W 06/09/2026 E60 MPH McPherson SD Trained Spotter winds close to 60mph from the outflow boundary that passed before the storm came in. Radar estimated time: 10:31pm. 1215 AM Tstm Wnd Gst 7 E Britton 45.78N 97.61W 06/10/2026 M73 MPH Marshall SD Mesonet Mesonet station BTMS2 Britton 7E (SD Mesonet). 1234 AM Tstm Wnd Gst 4 SW Hillhead 45.80N 97.45W 06/10/2026 M72 MPH Marshall SD Mesonet Mesonet station MRLS2 Hillhead 3 WSW. 1005 PM Tstm Wnd Gst 1 WNW Lower Brule 44.08N 99.61W 06/09/2026 M59 MPH Lyman SD Mesonet Mesonet station LBMS2 Lower Brule 2WNW (SD Mesonet). 1013 PM Tstm Wnd Gst 1 NE Stephan 44.26N 99.44W 06/09/2026 M59 MPH Hyde SD Mesonet Mesonet station 183 Macs Corner (SDDOT). 0930 PM Tstm Wnd Gst 4 WSW Blunt 44.50N 100.07W 06/09/2026 E65 MPH Hughes SD Trained Spotter 0935 PM Tstm Wnd Gst 4 SSE Canning 44.35N 100.00W 06/09/2026 M65 MPH Hughes SD Mesonet Mesonet station PIMS2 Pierre 17E (SD Mesonet). 0945 PM Tstm Wnd Gst 10 ESE Canning 44.37N 99.84W 06/09/2026 E60 MPH Hughes SD Trained Spotter report also includes some pea sized hail. 1025 PM Tstm Wnd Gst 1 N Ree Heights 44.53N 99.20W 06/09/2026 M74 MPH Hand SD Mesonet Mesonet station 312 Ree Heights (SDDOT). 1032 PM Tstm Wnd Gst 8 SSW Miller Dale Colon 44.30N 99.20W 06/09/2026 E60 MPH Hand SD Public report also included some small hail. 1044 PM Tstm Wnd Gst 12 ESE Sunshine Bible A 44.24N 98.77W 06/09/2026 M62 MPH Hand SD Mesonet Mesonet station RHUS2 Danforth 5 E. Time estimated. 1045 PM Tstm Wnd Gst 3 SE Vayland 44.46N 98.76W 06/09/2026 M59 MPH Hand SD Mesonet Mesonet station WGMS2 Wessington 3W (SD Mesonet). 1049 PM Tstm Wnd Gst 5 E Orient 44.90N 98.98W 06/09/2026 M63 MPH Hand SD Mesonet Mesonet station 158 Miranda (SDDOT). 1050 PM Tstm Wnd Gst 6 S Rockham 44.82N 98.80W 06/09/2026 M69 MPH Hand SD Mesonet Mesonet station RHMS2 Rockham 6SSE (SD Mesonet). 1054 PM Tstm Wnd Gst 12 ESE Sunshine Bible A 44.24N 98.77W 06/09/2026 M62 MPH Hand SD Mesonet Mesonet station RHUS2 Danforth 5 E, time estimated from radar. 1230 AM Tstm Wnd Gst 4 S Stone Bridge 44.55N 97.05W 06/10/2026 M58 MPH Hamlin SD Mesonet Mesonet station FW0832 Estelline. 1233 AM Tstm Wnd Dmg 2 SSW Claremont Colony 44.68N 96.97W 06/10/2026 Hamlin SD Trained Spotter Trained spotter reports multiple irrigation pivots damaged due to wind. Time estimated by radar. 1234 AM Tstm Wnd Dmg 3 W Castlewood 44.72N 97.09W 06/10/2026 Hamlin SD Public Image relayed via Facebook of multiple trees being uprooted. 1236 AM Tstm Wnd Gst 2 SW Stone Bridge 44.58N 97.09W 06/10/2026 M70 MPH Hamlin SD Emergency Mngr 0135 AM Tstm Wnd Dmg 3 N Poinsett Colony 44.68N 96.90W 06/10/2026 Hamlin SD Storm Chaser Significant tree damage along 465th Avenue. 1044 PM Tstm Wnd Gst Faulkton 45.04N 99.13W 06/09/2026 M77 MPH Faulk SD Trained Spotter 1105 PM Tstm Wnd Gst 4 WNW Cresbard 45.19N 99.02W 06/09/2026 M60 MPH Faulk SD Mesonet Mesonet station 315 Cresbard (SDDOT). 1115 PM Tstm Wnd Gst 1 NE Mina 45.45N 98.74W 06/09/2026 M70 MPH Edmunds SD Mesonet 1244 AM Tstm Wnd Dmg 6 S Goodwin 44.79N 96.84W 06/10/2026 Deuel SD Trained Spotter Trained spotter sent photos and video of multiple large trees snapped or uprooted at and near the intersection of 179th street and 468th Ave. Part of 179th street appears impassable due to the debris. 1245 AM Tstm Wnd Dmg 6 W Clear Lake 44.75N 96.80W 06/10/2026 Deuel SD Trained Spotter Trained spotter sent photos of trees down at 470th Ave and South Dakota Highway 22. Time estimated by radar. 1245 AM Tstm Wnd Dmg 3 S Goodwin 44.83N 96.85W 06/10/2026 Deuel SD Trained Spotter Trained spotter reports roofing and siding damage to a home in Bemis due to wind. Time estimated by radar. 1248 AM Tstm Wnd Dmg 1 S Clear Lake 44.75N 96.68W 06/10/2026 Deuel SD Trained Spotter Photo sent of a tree down in Clear Lake. Time estimated by radar. 1249 AM Tstm Wnd Dmg Goodwin 44.88N 96.85W 06/10/2026 Deuel SD Public multiple trees uprooted. 1259 AM Tstm Wnd Gst Tunerville 44.89N 96.68W 06/10/2026 M90 MPH Deuel SD Mesonet Mesonet station 291 Altamont 4N (SDDOT). 0112 AM Tstm Wnd Dmg Astoria 44.56N 96.55W 06/10/2026 Deuel SD Trained Spotter Lots of branches down. A few trees split and fell. 0112 AM Tstm Wnd Gst Astoria 44.56N 96.55W 06/10/2026 E60 MPH Deuel SD Trained Spotter 60-80 mph gusts. 0112 AM Tstm Wnd Gst Astoria 44.57N 96.55W 06/10/2026 E60 MPH Deuel SD Trained Spotter 60 to 80 mph wind gust. 0805 PM Tstm Wnd Gst Mclaughlin 45.81N 100.81W 06/09/2026 E60 MPH Corson SD Trained Spotter Pea to nickel size hail. 1206 AM Tornado Henry 44.88N 97.46W 06/10/2026 Codington SD Emergency Mngr 1249 AM Tstm Wnd Gst Kranzburg 44.89N 96.91W 06/10/2026 M63 MPH Codington SD Emergency Mngr Time estimated by radar. 1115 PM Tstm Wnd Gst 4 ESE Mina 45.41N 98.68W 06/09/2026 M67 MPH Brown SD Mesonet Mesonet station AWMS2 Aberdeen 10WSW (SD Mesonet). 1127 PM Tstm Wnd Gst 2 WNW Richmond Lake Rec 45.55N 98.64W 06/09/2026 M78 MPH Brown SD NWS Employee 1130 PM Tstm Wnd Dmg 3 NNW Aberdeen 45.50N 98.50W 06/09/2026 Brown SD Emergency Mngr Photo of machine shed roof damage and door blown in relayed via Slack. 1132 PM Tstm Wnd Gst 1 SSE Aberdeen Regional 45.44N 98.41W 06/09/2026 M70 MPH Brown SD ASOS ASOS station KABR Aberdeen Rgnl AP. 1133 PM Tstm Wnd Dmg 3 N Aberdeen 45.52N 98.48W 06/09/2026 Brown SD Public report via social media. Time estimated by radar. 1134 PM Tstm Wnd Dmg 1 N Columbia 45.62N 98.31W 06/09/2026 Brown SD Emergency Mngr Roof damage from winds to a large barn, report relayed via Slack. Time estimated by radar. 1150 PM Tstm Wnd Gst 7 S Claremont 45.57N 98.03W 06/09/2026 M66 MPH Brown SD Mesonet Mesonet station GOTS2 Groton 9 NNE (SD Mesonet). 0123 AM Tstm Wnd Dmg 4 ENE Ortonville 45.33N 96.37W 06/10/2026 Big Stone MN Public Large Pine tree snapped at base of trunk and other tree damage. Time estimated by radar.
1133 PM Tstm Wnd Dmg 2 N Aberdeen 45.50N 98.49W 06/09/2026 Brown SD Public Photo and video of trees that have fallen down from the wind onto a home and another one onto a car. Time estimated by radar.
1233 AM Tstm Wnd Dmg Poinsett Colony 44.64N 96.90W 06/10/2026 Hamlin SD Emergency Mngr Hamlin County EM relayed report of the roof of a metal outbuilding peeled up from the winds. Time estimated via radar.
1236 AM Tstm Wnd Dmg 2 NW Claremont Colony 44.73N 96.98W 06/10/2026 Hamlin SD Public Photos of a damaged metal shed and multiple trees down via Facebook. Time estimated via radar.
Environment
Ample instability out ahead of a cold front allowed storms to develop over western South Dakota in the afternoon. Storms progressed eastward and into the Aberdeen County Warning Area (CWA) by the evening, with individual cells dominating the storm mode and occasionally producing severe wind gusts and severe hail. In the late evening, storms took on a more linear shape as they crossed the Missouri River and moved into a more favorable wind environment. Widespread wind damage and wind gusts over 75 miles per hour began to occur over parts of northeastern South Dakota in the late evening. Storms would continue producing severe wind gusts and wind damage as they moved east out of the Aberdeen CWA in the early morning hours.
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| ABR 18Z (1 PM CDT) Sounding | WPC Surface Analysis at 4 PM CDT | WPC Surface Analysis at 7 PM CDT |
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| ABR 00Z (7 PM CDT) Sounding | WPC Surface Analysis at 10 PM CDT | WPC Surface Analysis at 1 AM CDT |
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