Alert archive / South Dakota / Tornado Warnings in 2026
Tornado Warning 3, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this tornado warning at May 17, 2026, 2:50 PM CDT for Bon Homme County, Charles Mix County, Hutchinson County, South Dakota. It was in force for 40 min. 7 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 17, 2026, 2:50 PM CDT (19:50 UTC)
- Expired
- May 17, 2026, 3:30 PM CDT
- In force
- 40 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.5 in
Counties Bon Homme County, SD, Charles Mix County, SD, Hutchinson County, SD
The radar
The Sioux Falls radar (KFSD), 117 km from the middle of the area, began a volume at 19:50 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 17, 2:50 PM CDT | TSTM WND DMG | 3 N Dante, SD | Mobile trailer flipped, dismantled, and moved about 60 ft. Pickup truck tipped on its side. Time estimated from radar. |
| May 17, 2:51 PM CDT | TSTM WND DMG | 2 W Avon, SD | Trained spotter reported a shed with its roof blown off. |
| May 17, 2:52 PM CDT | TSTM WND GST 79 | 4 Ne Dante, SD | Mesonet station 324 SD RWIS WAGNER. |
| May 17, 3:05 PM CDT | TSTM WND DMG | 5 S Tripp, SD | Farm out-buildings severely damaged and 5th wheel camper overturned. |
| May 17, 3:05 PM CDT | TSTM WND DMG | 5 S Tripp, SD | Farm out-buildings severely damaged and 5th wheel camper overturned. |
| May 17, 3:16 PM CDT | TSTM WND GST 60 | 2 Wnw Scotland, SD | Via personal weather station. |
| May 17, 3:16 PM CDT | TSTM WND GST 60 | 2 Wnw Scotland, SD | Via personal weather station. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 17, 1:42 PM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 7.8 hours before the alert went out and 203 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2103 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 372 m²/s²
- 0-3 km storm-relative helicity
- 379 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
844
WFUS53 KFSD 171950
TORFSD
SDC009-023-067-172030-
/O.NEW.KFSD.TO.W.0003.260517T1950Z-260517T2030Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Sioux Falls SD
250 PM CDT Sun May 17 2026
The National Weather Service in Sioux Falls has issued a
* Tornado Warning for...
East central Charles Mix County in south central South Dakota...
Northern Bon Homme County in southeastern South Dakota...
Southwestern Hutchinson County in southeastern South Dakota...
* Until 330 PM CDT.
* At 250 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Dante, or 17 miles east of Pickstown, moving east
at 50 mph.
HAZARD...Tornado and ping pong ball size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This dangerous storm will be near...
Avon around 255 PM CDT.
Tripp around 300 PM CDT.
Kaylor around 305 PM CDT.
Scotland around 310 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4296 9823 4313 9831 4336 9764 4309 9764
TIME...MOT...LOC 1950Z 250DEG 43KT 4308 9819
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
$$
Weisser1 follow-up statement
265
WWUS53 KFSD 172006
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
306 PM CDT Sun May 17 2026
SDC023-172016-
/O.CAN.KFSD.TO.W.0003.000000T0000Z-260517T2030Z/
Charles Mix SD-
306 PM CDT Sun May 17 2026
...THE TORNADO WARNING FOR EAST CENTRAL CHARLES MIX COUNTY IS
CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1000 PM CDT for south central
and southeastern South Dakota.
&&
LAT...LON 4306 9810 4310 9811 4312 9809 4318 9807
4320 9811 4336 9764 4309 9764 4299 9811
TIME...MOT...LOC 2006Z 245DEG 40KT 4316 9798
$$
SDC009-067-172030-
/O.CON.KFSD.TO.W.0003.000000T0000Z-260517T2030Z/
Bon Homme SD-Hutchinson SD-
306 PM CDT Sun May 17 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 330 PM CDT FOR NORTHERN
BON HOMME AND SOUTHWESTERN HUTCHINSON COUNTIES...
At 306 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Tripp, or 13 miles northwest of Tyndall, moving
northeast at 45 mph.
HAZARD...Tornado and ping pong ball size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Tripp and Kaylor around 310 PM CDT.
Other locations in the path of this tornadic thunderstorm include
Scotland.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4306 9810 4310 9811 4312 9809 4318 9807
4320 9811 4336 9764 4309 9764 4299 9811
TIME...MOT...LOC 2006Z 245DEG 40KT 4316 9798
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
$$
WeisserThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 17, 1:10 AM CDT | Flash Flood Warning | FSD | Union | 4 hr |
| May 17, 1:09 PM CDT | Severe Thunderstorm Warning | FSD | Gregory | 51 min |
| May 17, 2:10 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Gregory | 50 min |
| May 17, 2:15 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule, Charles Mix, Douglas | 45 min |
| May 17, 2:49 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Hutchinson, Yankton | 41 min |
| May 17, 3:23 PM CDT | Tornado Warning | FSD | Hutchinson, Turner, Yankton | 52 min |
| May 17, 3:28 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Clay, Hutchinson, Turner, Yankton | 47 min |
| May 17, 3:35 PM CDT | Tornado Warning | FSD | Hutchinson, Turner | 28 min |
| May 17, 3:59 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Turner | 46 min |
| May 17, 4:18 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Minnehaha, Turner | 42 min |
| May 17, 4:27 PM CDT | Tornado Warning | FSD | Lincoln, Minnehaha | 48 min |
| May 17, 4:56 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 49 min |
Nearby
Tornado Warnings in South Dakota, 2026Every tornado warning in 2026Tornadoes in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.