Alert archive / South Dakota / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 13, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 11, 2021, 3:13 AM CDT for Brule County, Charles Mix County, Gregory County, South Dakota. It was in force for 47 min. 2 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
- Jun 11, 2021, 3:13 AM CDT (08:13 UTC)
- Expired
- Jun 11, 2021, 4:00 AM CDT
- In force
- 47 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Brule County, SD, Charles Mix County, SD, Gregory County, SD
The radar
The Sioux Falls radar (KFSD), 208 km from the middle of the area, began a volume at 08:16 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 |
|---|---|---|---|
| Jun 11, 3:15 AM CDT | TSTM WND GST 62 | 3 S Chamberlain, SD | |
| Jun 11, 3:58 AM CDT | TSTM WND DMG | 10 N Kimball, SD | ROOF DAMAGE TO SHED, SIDING DAMAGED ON HOME. |
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 |
|---|---|---|---|
| Jun 11, 2:15 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 8.2 hours before the alert went out and 162 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
- 1337 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 2725 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.7
The text
As transmitted.
366
WUUS53 KFSD 110813
SVRFSD
SDC015-023-053-110900-
/O.NEW.KFSD.SV.W.0013.210611T0813Z-210611T0900Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Sioux Falls SD
313 AM CDT Fri Jun 11 2021
The National Weather Service in Sioux Falls has issued a
* Severe Thunderstorm Warning for...
Northwestern Charles Mix County in south central South Dakota...
Gregory County in south central South Dakota...
Brule County in south central South Dakota...
* Until 400 AM CDT.
* At 312 AM CDT, severe thunderstorms were located along a line
extending from near Lees Corner to Lake Francis Case to 6 miles
southwest of Colome, moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Severe thunderstorms will be near...
Chamberlain around 320 AM CDT.
Gregory around 335 AM CDT.
Kimball around 340 AM CDT.
Burke around 345 AM CDT.
Herrick around 350 AM CDT.
St. Charles around 355 AM CDT.
Other locations impacted by these severe thunderstorms include Dixon
In Gregory County and Pukwana.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4350 9953 4350 9929 4352 9928 4357 9934
4364 9936 4367 9947 4370 9941 4377 9941
4386 9931 4390 9936 4392 9936 4393 9881
4351 9879 4300 9915 4300 9953
TIME...MOT...LOC 0812Z 266DEG 40KT 4411 9930 4376 9936 4318 9976
HAIL...<.75IN
WIND...60MPH
$$
Schumacher3 follow-up statements
869
WWUS53 KFSD 110828
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
328 AM CDT Fri Jun 11 2021
SDC015-023-053-110900-
/O.CON.KFSD.SV.W.0013.000000T0000Z-210611T0900Z/
Charles Mix SD-Gregory SD-Brule SD-
328 AM CDT Fri Jun 11 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 AM CDT
FOR NORTHWESTERN CHARLES MIX...GREGORY AND BRULE COUNTIES...
At 328 AM CDT, severe thunderstorms were located along a line
extending from 6 miles northeast of Etbauer Hill to 8 miles west of
Kimball to near Dallas, moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated. At 315 AM CDT, a 62 mph wind gust was
reported at the airport in Chamberlain.
IMPACT...Expect damage to roofs, siding, and trees.
These severe storms will be near...
Kimball around 340 AM CDT.
Herrick around 350 AM CDT.
Other locations impacted by these severe thunderstorms include Dixon
In Gregory County and Pukwana.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4350 9953 4350 9929 4352 9928 4357 9934
4364 9936 4367 9947 4370 9941 4377 9941
4386 9931 4390 9936 4392 9936 4393 9881
4351 9879 4300 9915 4300 9953
TIME...MOT...LOC 0828Z 266DEG 40KT 4412 9907 4377 9913 4319 9953
HAIL...<.75IN
WIND...60MPH
$$
Schumacher392
WWUS53 KFSD 110845
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
345 AM CDT Fri Jun 11 2021
SDC015-023-053-110900-
/O.CON.KFSD.SV.W.0013.000000T0000Z-210611T0900Z/
Charles Mix SD-Gregory SD-Brule SD-
345 AM CDT Fri Jun 11 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 AM CDT
FOR NORTHWESTERN CHARLES MIX...GREGORY AND BRULE COUNTIES...
At 345 AM CDT, severe thunderstorms were located along a line
extending from 11 miles northeast of Gann Valley to near Kimball to
Burke, moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
These severe thunderstorms will remain over mainly rural areas of
northwestern Charles Mix, Gregory and Brule Counties, including the
following locations... Pukwana.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4333 9953 4350 9929 4352 9928 4353 9928
4392 9916 4393 9881 4351 9879 4300 9915
4300 9953
TIME...MOT...LOC 0845Z 266DEG 40KT 4413 9882 4378 9888 4320 9928
HAIL...<.75IN
WIND...60MPH
$$
Schumacher241
WWUS53 KFSD 110900
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
400 AM CDT Fri Jun 11 2021
SDC015-023-053-110909-
/O.EXP.KFSD.SV.W.0013.000000T0000Z-210611T0900Z/
Charles Mix SD-Gregory SD-Brule SD-
400 AM CDT Fri Jun 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CHARLES MIX...
GREGORY AND BRULE COUNTIES WILL EXPIRE AT 400 AM CDT...
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.
A severe thunderstorm warning remains in effect for southeastern
Gregory and central Charles Mix Counties until 430 PM CDT.
A Severe Thunderstorm Watch remains in effect until 700 AM CDT for
south central South Dakota.
LAT...LON 4333 9953 4350 9929 4352 9928 4353 9928
4392 9916 4393 9881 4351 9879 4300 9915
4300 9953
TIME...MOT...LOC 0859Z 266DEG 40KT 4414 9863 4379 9870 4321 9910
$$
SchumacherThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 3:26 AM CDT | Severe Thunderstorm Warning | FSD | Beadle, Jerauld | 64 min |
| Jun 11, 3:39 AM CDT | Severe Thunderstorm Warning | FSD | Aurora, Charles Mix, Douglas, Gregory | 51 min |
| Jun 11, 4:59 AM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix | 46 min |
| Jun 11, 5:04 AM CDT | Severe Thunderstorm Warning | FSD | Brookings, Kingsbury, Lake, Miner | 41 min |
| Jun 11, 5:41 AM CDT | Severe Thunderstorm Warning | FSD | Yankton | 34 min |
| Jun 11, 5:56 AM CDT | Severe Thunderstorm Warning | FSD | Clay, Union | 49 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 2021Every severe thunderstorm warning in 2021
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.