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Severe Thunderstorm Warning 0169
Issued by the Aberdeen Forecast Office

Action Issued Starts Expiration
New 2025-07-28 16:12:58 2025-07-28 16:12:00 2025-07-28 17:00:00
Continued 2025-07-28 16:18:28 2025-07-28 17:00:00
Correction 2025-07-28 16:25:58 2025-07-28 17:00:00
Continued 2025-07-28 16:48:29 2025-07-28 17:00:00
Expired 2025-07-28 16:55:29 2025-07-28 17:00:00


Action: New
Issued At: 2025-07-28 16:12:58

508 
WUUS53 KABR 282112
SVRABR
SDC085-282200-
/O.NEW.KABR.SV.W.0169.250728T2112Z-250728T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Aberdeen SD
412 PM CDT Mon Jul 28 2025

The National Weather Service in Aberdeen has issued a

* Severe Thunderstorm Warning for...
  Southeastern Lyman County in central South Dakota...

* Until 500 PM CDT.

* At 412 PM CDT, a severe thunderstorm was located over Iona, or 18
  miles south of Chamberlain, moving east at 50 mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Lake Francis Case around 420 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Aberdeen.

&&

LAT...LON 4374 9962 4373 9969 4375 9968 4375 9971
      4372 9973 4375 9975 4373 9976 4371 9975
      4371 9976 4376 9977 4376 9942 4371 9941
      4368 9947 4366 9946 4365 9936 4358 9934
      4353 9928 4351 9929 4350 9962
TIME...MOT...LOC 2112Z 283DEG 43KT 4353 9946 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

20


Action: Continued
Issued At: 2025-07-28 16:18:28

755 
WWUS53 KABR 282118
SVSABR

Severe Weather Statement
National Weather Service Aberdeen SD
418 PM CDT Mon Jul 28 2025

SDC085-282200-
/O.CON.KABR.SV.W.0169.000000T0000Z-250728T2200Z/
Lyman SD-
418 PM CDT Mon Jul 28 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM CDT
FOR SOUTHEASTERN LYMAN COUNTY...

At 417 PM CDT, a severe thunderstorm was located near Iona, or 18
miles south of Chamberlain, moving east at 50 mph.

HAZARD...Golf ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

This severe thunderstorm will remain over mainly rural areas of
southeastern Lyman County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Aberdeen.

&&

LAT...LON 4374 9962 4373 9969 4375 9968 4375 9971
      4372 9973 4375 9975 4373 9976 4371 9975
      4371 9976 4376 9977 4376 9942 4371 9941
      4368 9947 4366 9946 4365 9936 4358 9934
      4353 9928 4351 9929 4350 9962
TIME...MOT...LOC 2117Z 283DEG 43KT 4351 9937 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

20


Action: Correction
Issued At: 2025-07-28 16:25:58

885 
WWUS53 KABR 282125 CCA
SVSABR

Severe Weather Statement
National Weather Service Aberdeen SD
425 PM CDT Mon Jul 28 2025

SDC085-282215-
/O.COR.KABR.SV.W.0169.000000T0000Z-250728T2200Z/
Lyman SD-
425 PM CDT Mon Jul 28 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM CDT
FOR SOUTHEASTERN LYMAN COUNTY...

At 425 PM CDT, a severe thunderstorm was located 9 miles southeast of
Iona, or 20 miles south of Chamberlain, moving east at 50 mph.

HAZARD...Two inch hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Iona and Lake Francis Case.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Aberdeen.

&&

LAT...LON 4374 9962 4373 9969 4375 9968 4375 9971
      4372 9973 4375 9975 4373 9976 4371 9975
      4371 9976 4376 9977 4376 9942 4371 9941
      4368 9947 4366 9946 4365 9936 4358 9934
      4353 9928 4351 9929 4350 9962
TIME...MOT...LOC 2117Z 283DEG 43KT 4351 9937 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...2.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

20


Action: Continued
Issued At: 2025-07-28 16:48:29

739 
WWUS53 KABR 282147
SVSABR

Severe Weather Statement
National Weather Service Aberdeen SD
447 PM CDT Mon Jul 28 2025

SDC085-282200-
/O.CON.KABR.SV.W.0169.000000T0000Z-250728T2200Z/
Lyman SD-
447 PM CDT Mon Jul 28 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM CDT
FOR SOUTHEASTERN LYMAN COUNTY...

At 447 PM CDT, a severe thunderstorm was located near Platte, or 22
miles south of Kimball, moving east at 50 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...
Iona and Lake Francis Case.

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
Aberdeen.

&&

LAT...LON 4374 9962 4373 9969 4375 9968 4375 9971
      4372 9973 4375 9975 4373 9976 4371 9975
      4371 9976 4376 9977 4376 9942 4371 9941
      4368 9947 4366 9946 4365 9936 4358 9934
      4353 9928 4351 9929 4350 9962
TIME...MOT...LOC 2147Z 283DEG 43KT 4343 9888 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

20


Action: Expired
Issued At: 2025-07-28 16:55:29

850 
WWUS53 KABR 282155
SVSABR

Severe Weather Statement
National Weather Service Aberdeen SD
455 PM CDT Mon Jul 28 2025

SDC085-282205-
/O.EXP.KABR.SV.W.0169.000000T0000Z-250728T2200Z/
Lyman SD-
455 PM CDT Mon Jul 28 2025

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LYMAN COUNTY WILL
EXPIRE AT 500 PM CDT...

The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.  However, gusty
winds are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
central South Dakota.

&&

LAT...LON 4374 9962 4373 9969 4375 9968 4375 9971
      4372 9973 4375 9975 4373 9976 4371 9975
      4371 9976 4376 9977 4376 9942 4371 9941
      4368 9947 4366 9946 4365 9936 4358 9934
      4353 9928 4351 9929 4350 9962
TIME...MOT...LOC 2155Z 283DEG 43KT 4341 9877 

$$

20



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