Overview
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Supercell thunderstorms began to develop Saturday afternoon south of Watertown and moved off to the east into Minnesota. Thunderstorms kept redeveloping generally in the same region of southern Codington County down across Hamlin County for roughly five and a half hours. The environment was supportive of tornado development there across east central South Dakota Saturday afternoon, and several funnel clouds and tornados formed. As storms trained over the same area for several hours, excessive heavy rainfall developed resulting in portions of Hamlin and Deuel Counties receiving 2 to 4+ inches of rainfall. |
 Photo credit: @adamorgler |
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) | |||||
Photos & Video
A Few Tornado Pictures
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| Photo Shared By Alex Resel | Photo Shared By Alex Resel | Photo Shared By Adam Morgler | Photo Shared By Jim Marko |
Wall Clouds/Funnels
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| Photo Shared By Adam Morgler | Photo Shared By Alex Resel | Photo Shared By Gage Gibson | Photo Shared By James Pepin |
Areal Damage Photos
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| Photo Shared By Shawn Cable KEYC-TV | Photo Shared By Shawn Cable KEYC-TV | Photo Shared By Shawn Cable KEYC-TV | Photo Shared By Shawn Cable KEYC-TV |
Rain Reports
Flooding
Excessive heavy rainfrall from slow-moving, training thunderstorms Saturday night, June 28th, resulted in a local and rapid rise response on the Big Sioux River in east central South Dakota (Hamlin County).
Hydrographs
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| Hydrograph from the Big Sioux River near Castlewood. | Hydrograph from the Big Sioux River near Estelline |
Flood Report
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| LSR for flooding and damage |
Storm Reports
Preliminary Local Storm Report...Summary
National Weather Service Aberdeen SD
812 PM CDT Sun Jun 29 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0552 PM Funnel Cloud 4 NE Veblen 45.90N 97.22W
06/28/2025 Roberts SD Emergency Mngr
Message on Slack about a persistent funnel
cloud (around for about 6 min since 5:29)
near Veblen. Roberts county EM said that
dispatch has had a few calls about a funnel
west of the Dakota Magic Casino.
0633 PM Funnel Cloud 3 NE Claremont Colony 44.75N 96.90W
06/28/2025 Hamlin SD Public
Funnel cloud by trained weather spotter and
passed along on state radio.
0918 PM Funnel Cloud Castlewood 44.72N 97.03W
06/28/2025 Hamlin SD Public
Video sent on Facebook of a funnel cloud in
Castlewood around 9:18pm.
0940 PM Hail 4 W Castlewood 44.73N 97.11W
06/28/2025 M1.00 Inch Hamlin SD Trained Spotter
0950 PM Hail 2 S Thomas 44.73N 97.20W
06/28/2025 M1.00 Inch Hamlin SD Emergency Mngr
1054 PM Hail 2 SSE Stone Bridge 44.57N 97.03W
06/28/2025 M1.00 Inch Hamlin SD Trained Spotter
Trained Spotter had Quarter plus sized hail
1 mile east of Lake Poinsett.
0659 PM Tornado 5 W Clear Lake 44.78N 96.78W
06/28/2025 Deuel SD Trained Spotter
relayed from multiple spotters.
0707 PM Tornado Tunerville 44.89N 96.68W
06/28/2025 Deuel SD Trained Spotter
Trees blown down and abandoned structure was
damaged/hit.
0716 PM Funnel Cloud 2 ENE Clear Lake 44.78N 96.64W
06/28/2025 Deuel SD Trained Spotter
Photo on X of a new funnel cloud coming from
storm.
0813 PM Tornado 5 WNW Lake Cochrane Rec 44.75N 96.54W
06/28/2025 Deuel SD Trained Spotter
Spotter called with a Tornado on the ground.
0816 PM Funnel Cloud 3 E Clear Lake 44.77N 96.62W
06/28/2025 Deuel SD Storm Chaser
Called about Funnel almost to the ground
with some ground debris being spun and
tossed around.
0830 PM Tornado 1 WNW Lake Cochrane Rec 44.71N 96.48W
06/28/2025 Deuel SD Law Enforcement
Tornado reported around the Lake Cochrane
Rec Area.
0847 PM Tornado Gary 44.79N 96.46W
06/28/2025 Deuel SD Law Enforcement
Tornado in Gary took out a house.
0858 PM Hail 3 S Gary 44.75N 96.46W
06/28/2025 M2.00 Inch Deuel SD Public
Report from mPING: Hen Egg (2.00 in.).
1013 PM Funnel Cloud 3 NE Astoria 44.59N 96.50W
06/28/2025 Deuel SD Trained Spotter
Spotter reported a possible rain-wrapped
tornado while heading towards Brandt.
1016 PM Tornado 1 E Toronto 44.57N 96.62W
06/28/2025 Deuel SD Law Enforcement
state radio report of tornado 1 mile east of
Toronto.
1018 PM Tornado 1 N Toronto 44.59N 96.64W
06/28/2025 Deuel SD Law Enforcement
state radio report of a different tornado 1
mile north of Toronto.
0920 PM Funnel Cloud 6 SW Kranzburg 44.82N 96.99W
06/28/2025 Codington SD Law Enforcement
Funnel cloud spotted just west of I-29 at
mile marker 174.
Environment
A set-up that favored the potential for tornadic development accompanied a cold frontal boundary Saturday afternoon through late evening. Thunderstorms slowed the front's progress to a stand-still during the overnight hours.
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| WPC Surface Analysis at 7pm CDT June 28th | WPC Surface Analysis at 10pm CDT June 28th | WPC Surface Analysis at 1am CDT June 29th |
Near-storm environment summary.
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| SPC's 6pm CDT Significant Tornado Parameter on June 28th | SPC's 8pm CDT Significant Tornado Parameter on June 28th | SPC's 10pm CDT Significant Tornado Parameter on June 28th |
Additional environmental data.
| Figure 7: Caption | Figure 8: Caption | Figure 9: Caption |
Radar & Satellite
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| Initial tornado touchdown observed by spotters and chasers at or around 6:53 pm northwest of Clear Lake SD | Brief tornado touchdown southwest of Gary SD at around 7:35 pm | This is the initial radar couplet of what would go on to be the EF-3 tornado near Gary, time is approximately 8:07 pm |
| MRMS Reflectivity of the June 28, 2025 Tornadic Event. The loop goes from 6 PM CDT to midnight. |
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