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Wednesday, Sep 17, 2025 05:53:39

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Severe Thunderstorm Warning 0371
Issued by the Rapid City Forecast Office

Action Issued Starts Expiration
New 2025-09-11 23:16:06 2025-09-11 23:15:00 2025-09-12 00:15:00
Continued 2025-09-11 23:35:36 2025-09-12 00:15:00
Continued 2025-09-11 23:42:07 2025-09-12 00:15:00
Continued 2025-09-11 23:48:07 2025-09-12 00:15:00
Cancelled 2025-09-11 23:53:37 2025-09-12 00:15:00


Action: New
Issued At: 2025-09-11 23:16:06

022 
WUUS53 KUNR 120415
SVRUNR
SDC019-063-120515-
/O.NEW.KUNR.SV.W.0371.250912T0415Z-250912T0515Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Rapid City SD
1015 PM MDT Thu Sep 11 2025

The National Weather Service in Rapid City has issued a

* Severe Thunderstorm Warning for...
  South central Harding County in northwestern South Dakota...
  Central Butte County in northwestern South Dakota...

* Until 1115 PM MDT.

* At 1015 PM MDT, a severe thunderstorm was located 4 miles southeast
  of Arpan, or 14 miles northeast of Belle Fourche, moving north at
  30 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...
  Newell, Nisland, Castle Rock, Hoover, Redig, Arpan, Belle Fourche
  Reservoir, Newell Lake, Haystack Buttes, Two Top Butte, and Crow
  Buttes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4464 10345 4468 10372 4534 10365 4525 10307
TIME...MOT...LOC 0415Z 194DEG 27KT 4475 10358 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

AEH


Action: Continued
Issued At: 2025-09-11 23:35:36

324 
WWUS53 KUNR 120435
SVSUNR

Severe Weather Statement
National Weather Service Rapid City SD
1035 PM MDT Thu Sep 11 2025

SDC019-063-120515-
/O.CON.KUNR.SV.W.0371.000000T0000Z-250912T0515Z/
Harding SD-Butte SD-
1035 PM MDT Thu Sep 11 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM MDT
FOR SOUTH CENTRAL HARDING AND EASTERN BUTTE COUNTIES...

At 1035 PM MDT, a severe thunderstorm was located 4 miles west of
Newell Lake, or 21 miles northeast of Belle Fourche, moving northeast
at 30 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.

Locations impacted include...
Newell, Castle Rock, Hoover, Redig, Arpan, Newell Lake, Haystack
Buttes, Two Top Butte, and Crow Buttes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4468 10342 4481 10371 4534 10365 4525 10307
TIME...MOT...LOC 0435Z 207DEG 25KT 4485 10349 

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

$$

AEH


Action: Continued
Issued At: 2025-09-11 23:42:07

374 
WWUS53 KUNR 120441
SVSUNR

Severe Weather Statement
National Weather Service Rapid City SD
1041 PM MDT Thu Sep 11 2025

SDC019-063-120515-
/O.CON.KUNR.SV.W.0371.000000T0000Z-250912T0515Z/
Harding SD-Butte SD-
1041 PM MDT Thu Sep 11 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM MDT
FOR SOUTH CENTRAL HARDING AND CENTRAL BUTTE COUNTIES...

At 1041 PM MDT, a severe thunderstorm was located 4 miles northwest
of Newell Lake, or 24 miles northeast of Belle Fourche, moving
northeast at 30 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...
Newell, Castle Rock, Hoover, Arpan, Newell Lake, Haystack Buttes, and
Two Top Butte.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4468 10342 4481 10371 4532 10352 4525 10307
TIME...MOT...LOC 0441Z 206DEG 26KT 4489 10345 

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

$$

AEH


Action: Continued
Issued At: 2025-09-11 23:48:07

640 
WWUS53 KUNR 120447
SVSUNR

Severe Weather Statement
National Weather Service Rapid City SD
1047 PM MDT Thu Sep 11 2025

SDC019-063-120515-
/O.CON.KUNR.SV.W.0371.000000T0000Z-250912T0515Z/
Harding SD-Butte SD-
1047 PM MDT Thu Sep 11 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM MDT
FOR SOUTH CENTRAL HARDING AND NORTHEASTERN BUTTE COUNTIES...

At 1047 PM MDT, a severe thunderstorm was located 3 miles south of
Castle Rock, or 27 miles northeast of Belle Fourche, moving northeast
at 30 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...
Castle Rock, Hoover, Newell Lake, Haystack Buttes, and Two Top Butte.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4478 10336 4487 10369 4531 10347 4525 10307
TIME...MOT...LOC 0447Z 212DEG 24KT 4491 10341 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

AEH


Action: Cancelled
Issued At: 2025-09-11 23:53:37

687 
WWUS53 KUNR 120453
SVSUNR

Severe Weather Statement
National Weather Service Rapid City SD
1053 PM MDT Thu Sep 11 2025

SDC019-063-120503-
/O.CAN.KUNR.SV.W.0371.000000T0000Z-250912T0515Z/
Harding SD-Butte SD-
1053 PM MDT Thu Sep 11 2025

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL HARDING AND
NORTHEASTERN BUTTE COUNTIES IS CANCELLED...

The severe thunderstorm which prompted the warning has weakened. 
Therefore, the warning has been cancelled.  However, small hail and 
gusty winds are still possible with this thunderstorm.

&&

LAT...LON 4478 10336 4487 10369 4531 10347 4525 10307
TIME...MOT...LOC 0451Z 194DEG 27KT 4495 10339 

$$

AEH



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