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Home Return to list Tornado Warning 0015 Issued by the Sioux Falls Forecast Office
Action: New Issued At: 2026-05-17 20:48:39
763
WFUS53 KFSD 180148
TORFSD
IAC041-059-180215-
/O.NEW.KFSD.TO.W.0015.260518T0148Z-260518T0215Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Sioux Falls SD
848 PM CDT Sun May 17 2026
The National Weather Service in Sioux Falls has issued a
* Tornado Warning for...
Southeastern Dickinson County in northwestern Iowa...
Clay County in northwestern Iowa...
* Until 915 PM CDT.
* At 847 PM CDT, severe thunderstorms capable of producing both
tornadoes and extensive straight line wind damage were located near
Greenville, or 9 miles southwest of Spencer In Clay County, moving
northeast at 70 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.
* These dangerous storms will be near...
Spencer In Clay County and Lost Island Lake around 855 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.
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 4292 9514 4298 9532 4308 9532 4341 9492
4325 9491 4301 9492
TIME...MOT...LOC 0147Z 237DEG 60KT 4303 9522
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
BP
Action: Continued Issued At: 2026-05-17 21:00:24
080
WWUS53 KFSD 180159
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
859 PM CDT Sun May 17 2026
IAC041-059-180215-
/O.CON.KFSD.TO.W.0015.000000T0000Z-260518T0215Z/
Dickinson IA-Clay IA-
859 PM CDT Sun May 17 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR
SOUTHEASTERN DICKINSON AND NORTHEASTERN CLAY COUNTIES...
At 859 PM CDT, a severe squall line capable of producing both
tornadoes and extensive straight line wind damage was located near
Lost Island Lake, or 8 miles east of Spencer in Clay County, moving
northeast at 70 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornadic thunderstorm will remain over mainly rural areas of
southeastern Dickinson and northeastern Clay Counties, including the
following locations... Dickens.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 4306 9508 4320 9517 4327 9510 4340 9493
4325 9491 4305 9492
TIME...MOT...LOC 0159Z 237DEG 60KT 4314 9498
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
BP
Action: Expired Issued At: 2026-05-17 21:12:09
394
WWUS53 KFSD 180211 RRA
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
911 PM CDT Sun May 17 2026
IAC041-059-180221-
/O.EXP.KFSD.TO.W.0015.000000T0000Z-260518T0215Z/
Dickinson IA-Clay IA-
911 PM CDT Sun May 17 2026
...THE TORNADO WARNING FOR SOUTHEASTERN DICKINSON AND NORTHEASTERN
CLAY COUNTIES WILL EXPIRE AT 915 PM CDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
A Tornado Watch remains in effect until 1000 PM CDT for northwestern
Iowa.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Sioux Falls.
&&
LAT...LON 4306 9508 4320 9517 4327 9510 4340 9493
4325 9491 4305 9492
TIME...MOT...LOC 0211Z 237DEG 60KT 4324 9477
$$
BP
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