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Home Return to list Severe Thunderstorm Warning 0216 Issued by the Sioux Falls Forecast Office
Action: New Issued At: 2026-08-09 02:49:43
653
WUUS53 KFSD 090749
SVRFSD
IAC041-141-090845-
/O.NEW.KFSD.SV.W.0216.260809T0749Z-260809T0845Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Sioux Falls SD
249 AM CDT Sun Aug 9 2026
The National Weather Service in Sioux Falls has issued a
* Severe Thunderstorm Warning for...
Northwestern Clay County in northwestern Iowa...
East central OBrien County in northwestern Iowa...
* Until 345 AM CDT.
* At 249 AM CDT, a severe thunderstorm was located near Sutherland,
or 16 miles southwest of Spencer In Clay County, moving northeast
at 20 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* This severe thunderstorm will be near...
Everly and Royal around 255 AM CDT.
Other locations in the path of this severe thunderstorm include
Spencer In Clay County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Sioux Falls.
&&
LAT...LON 4296 9545 4306 9558 4326 9536 4307 9508
TIME...MOT...LOC 0749Z 236DEG 18KT 4305 9545
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
IG
Action: Continued Issued At: 2026-08-09 03:04:43
038
WWUS53 KFSD 090804
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
304 AM CDT Sun Aug 9 2026
IAC041-141-090845-
/O.CON.KFSD.SV.W.0216.000000T0000Z-260809T0845Z/
Clay IA-OBrien IA-
304 AM CDT Sun Aug 9 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 AM CDT
FOR NORTHWESTERN CLAY AND EAST CENTRAL OBRIEN COUNTIES...
At 304 AM CDT, a severe thunderstorm was located over Royal, or 11
miles southwest of Spencer In Clay County, moving northeast at 20
mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Spencer In Clay County and Royal.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Sioux Falls.
&&
LAT...LON 4298 9537 4305 9545 4321 9529 4307 9508
TIME...MOT...LOC 0804Z 244DEG 17KT 4303 9531
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
IG
Action: Continued Issued At: 2026-08-09 03:21:44
619
WWUS53 KFSD 090821
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
321 AM CDT Sun Aug 9 2026
IAC141-090830-
/O.CAN.KFSD.SV.W.0216.000000T0000Z-260809T0845Z/
OBrien IA-
321 AM CDT Sun Aug 9 2026
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL OBRIEN COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
&&
LAT...LON 4303 9529 4310 9538 4321 9529 4311 9514
TIME...MOT...LOC 0820Z 218DEG 19KT 4314 9527
$$
IAC041-090845-
/O.CON.KFSD.SV.W.0216.000000T0000Z-260809T0845Z/
Clay IA-
321 AM CDT Sun Aug 9 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 AM CDT
FOR NORTHWESTERN CLAY COUNTY...
At 320 AM CDT, a severe thunderstorm was located over Everly, or near
Spencer In Clay County, moving northeast at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Spencer In Clay County, Everly, and Royal.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Sioux Falls.
&&
LAT...LON 4303 9529 4310 9538 4321 9529 4311 9514
TIME...MOT...LOC 0820Z 218DEG 19KT 4314 9527
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
IG
Action: Cancelled Issued At: 2026-08-09 03:21:44
619
WWUS53 KFSD 090821
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
321 AM CDT Sun Aug 9 2026
IAC141-090830-
/O.CAN.KFSD.SV.W.0216.000000T0000Z-260809T0845Z/
OBrien IA-
321 AM CDT Sun Aug 9 2026
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL OBRIEN COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
&&
LAT...LON 4303 9529 4310 9538 4321 9529 4311 9514
TIME...MOT...LOC 0820Z 218DEG 19KT 4314 9527
$$
IAC041-090845-
/O.CON.KFSD.SV.W.0216.000000T0000Z-260809T0845Z/
Clay IA-
321 AM CDT Sun Aug 9 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 AM CDT
FOR NORTHWESTERN CLAY COUNTY...
At 320 AM CDT, a severe thunderstorm was located over Everly, or near
Spencer In Clay County, moving northeast at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Spencer In Clay County, Everly, and Royal.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Sioux Falls.
&&
LAT...LON 4303 9529 4310 9538 4321 9529 4311 9514
TIME...MOT...LOC 0820Z 218DEG 19KT 4314 9527
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
IG
Action: Cancelled Issued At: 2026-08-09 03:27:14 724 WWUS53 KFSD 090827 SVSFSD Severe Weather Statement National Weather Service Sioux Falls SD 327 AM CDT Sun Aug 9 2026 IAC041-090836- /O.CAN.KFSD.SV.W.0216.000000T0000Z-260809T0845Z/ Clay IA- 327 AM CDT Sun Aug 9 2026 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CLAY COUNTY IS CANCELLED... The storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. Therefore, the warning has been cancelled. However, small hail and heavy rain are still possible with this thunderstorm. To report severe weather, contact your nearest law enforcement agency. They will relay your report to the National Weather Service Sioux Falls. && LAT...LON 4303 9529 4310 9538 4321 9529 4311 9514 TIME...MOT...LOC 0824Z 236DEG 18KT 4316 9523 $$ IG | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||