Alert archive / Minnesota / Tornado Warnings in 2026
Tornado Warning 8, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this tornado warning at May 17, 2026, 6:12 PM CDT for Jackson County, Nobles County, Minnesota. It was in force for 48 min. 9 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, 6:12 PM CDT (23:12 UTC)
- Expired
- May 17, 2026, 7:00 PM CDT
- In force
- 48 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Jackson County, MN, Nobles County, MN
The radar
The Sioux Falls radar (KFSD), 99 km from the middle of the area, began a volume at 23:15 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, 6:15 PM CDT | TORNADO | 3 Sw Worthington, MN | Unconfirmed report of tornado approximately 1 mile southwest of Worthington. Debris currently being observed. |
| May 17, 6:15 PM CDT | TORNADO | 3 Sw Worthington, MN | Unconfirmed report of tornado approximately 1 mile southwest of Worthington. Debris currently being observed. |
| May 17, 6:18 PM CDT | HAIL 1 | 5 Sw Worthington, MN | Report from mPING: Time estimated via radar. |
| May 17, 6:18 PM CDT | HAIL 1 | 5 Sw Worthington, MN | Report from mPING: Time estimated via radar. |
| May 17, 6:26 PM CDT | TSTM WND GST 55 | 2 Ene Worthington, MN | AWOS station KOTG Worthington Airport. |
| May 17, 6:26 PM CDT | TSTM WND GST 55 | 2 Ene Worthington, MN | AWOS station KOTG Worthington Airport. |
| May 17, 6:26 PM CDT | TSTM WND GST 59 | 2 Nne Worthington, MN | Via personal weather station. Exact time estimated via radar. |
| May 17, 6:26 PM CDT | TSTM WND GST 59 | 2 Nne Worthington, MN | Via personal weather station. Exact time estimated via radar. |
| May 17, 6:56 PM CDT | HAIL 1 | 2 Nw Okabena, MN | In addition to hail up to the size of quarters, winds gusted up about 40 mph and a quick heavy rain occurred. No damage was noticed. |
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
Minneapolis, MN (KMPX), launched 12:00Z, 11.2 hours before the alert went out and 200 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
- 1780 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 238 m²/s²
- 0-3 km storm-relative helicity
- 284 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
034
WFUS53 KFSD 172312
TORFSD
MNC063-105-180000-
/O.NEW.KFSD.TO.W.0008.260517T2312Z-260518T0000Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Sioux Falls SD
612 PM CDT Sun May 17 2026
The National Weather Service in Sioux Falls has issued a
* Tornado Warning for...
Western Jackson County in southwestern Minnesota...
Eastern Nobles County in southwestern Minnesota...
* Until 700 PM CDT.
* At 612 PM CDT, severe thunderstorms capable of producing a tornado
were located along a line extending from 6 miles east of Wilmont to
near Worthington, moving northeast at 35 mph.
HAZARD...Tornado.
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.
* These dangerous storms will be near...
Worthington around 615 PM CDT.
Brewster around 625 PM CDT.
Other locations in the path of these tornadic storms include Heron
Lake.
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 4352 9570 4382 9573 4385 9533 4384 9532
4356 9526
TIME...MOT...LOC 2312Z 233DEG 30KT 4374 9571 4358 9569
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
Weisser3 follow-up statements
681
WWUS53 KFSD 172318
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
618 PM CDT Sun May 17 2026
MNC063-105-180000-
/O.CON.KFSD.TO.W.0008.000000T0000Z-260518T0000Z/
Jackson MN-Nobles MN-
618 PM CDT Sun May 17 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR WESTERN
JACKSON AND EASTERN NOBLES COUNTIES...
At 617 PM CDT, severe thunderstorms capable of producing tornadoes
were located along a line extending from 8 miles south of Fulda to
near Worthington, moving northeast at 35 mph.
HAZARD...Tornado and golf ball size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
These dangerous storms will be near...
Worthington and Brewster around 625 PM CDT.
Other locations in the path of these tornadic storms include Heron
Lake.
At 615 pm...A trained spotter reported a possible tornado just
southwest of Worthington.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4352 9570 4382 9573 4385 9533 4384 9532
4356 9526
TIME...MOT...LOC 2317Z 235DEG 32KT 4376 9564 4360 9562
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
$$
Weisser962
WWUS53 KFSD 172335
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
635 PM CDT Sun May 17 2026
MNC063-105-180000-
/O.CON.KFSD.TO.W.0008.000000T0000Z-260518T0000Z/
Jackson MN-Nobles MN-
635 PM CDT Sun May 17 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR WESTERN
JACKSON AND EASTERN NOBLES COUNTIES...
At 635 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Brewster, or near Worthington, moving east at 30
mph.
HAZARD...Tornado and quarter 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.
Locations impacted include...
Brewster.
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 4353 9558 4380 9556 4385 9533 4384 9532
4356 9526
TIME...MOT...LOC 2335Z 259DEG 28KT 4364 9546
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
Weisser090
WWUS53 KFSD 172343
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
643 PM CDT Sun May 17 2026
MNC105-172352-
/O.CAN.KFSD.TO.W.0008.000000T0000Z-260518T0000Z/
Nobles MN-
643 PM CDT Sun May 17 2026
...THE TORNADO WARNING FOR EASTERN NOBLES COUNTY IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1000 PM CDT for southwestern
Minnesota.
&&
LAT...LON 4355 9545 4382 9545 4385 9533 4384 9532
4356 9526
TIME...MOT...LOC 2342Z 255DEG 28KT 4367 9538
$$
MNC063-180000-
/O.CON.KFSD.TO.W.0008.000000T0000Z-260518T0000Z/
Jackson MN-
643 PM CDT Sun May 17 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR WESTERN
JACKSON COUNTY...
At 642 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Brewster, or 11 miles east of Worthington, moving
east at 35 mph.
HAZARD...Tornado and quarter 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...
Heron Lake around 645 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 4355 9545 4382 9545 4385 9533 4384 9532
4356 9526
TIME...MOT...LOC 2342Z 255DEG 28KT 4367 9538
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
WeisserThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 17, 4:18 PM CDT | Severe Thunderstorm Warning | FSD | Rock | 42 min |
| May 17, 4:56 PM CDT | Severe Thunderstorm Warning | FSD | Nobles, Rock | 49 min |
| May 17, 5:33 PM CDT | Tornado Warning | FSD | Nobles, Rock | 42 min |
| May 17, 5:43 PM CDT | Severe Thunderstorm Warning | FSD | Murray, Nobles, Rock | 62 min |
| May 17, 6:30 PM CDT | Severe Thunderstorm Warning | FSD | Cottonwood, Jackson, Murray, Nobles | 75 min |
| May 17, 6:57 PM CDT | Tornado Warning | FSD | Cottonwood, Jackson | 48 min |
Nearby
Tornado Warnings in Minnesota, 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.