Alert archive / South Dakota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 30, NWS Aberdeen, SD

June 11, 2021Buffalo County, Hand County, Spink County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jun 11, 2021, 3:23 AM CDT for Buffalo County, Hand County, Spink County, South Dakota. It was in force for 52 min. 1 report 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, 3:23 AM CDT (08:23 UTC)
Expired: Jun 11, 2021, 4:15 AM CDT
In force: 52 min
Issued by: NWS Aberdeen, SD
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Buffalo County, SD, Hand County, SD, Spink County, SD

The radar

The Aberdeen radar (KABR), 116 km from the middle of the area, began a volume at 08:25 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, 3:34 AM CDT	TSTM WND GST 63	Miller, SD

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, 8.4 hours before the alert went out and 61 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

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

Open this sounding in Storm Lab

The text

As transmitted.

266 
WUUS53 KABR 110823
SVRABR
SDC017-059-115-110915-
/O.NEW.KABR.SV.W.0030.210611T0823Z-210611T0915Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Aberdeen SD
323 AM CDT Fri Jun 11 2021

The National Weather Service in Aberdeen has issued a

* Severe Thunderstorm Warning for...
  Hand County in central South Dakota...
  Southwestern Spink County in northeastern South Dakota...
  Buffalo County in central South Dakota...

* Until 415 AM CDT.

* At 323 AM CDT, severe thunderstorms were located along a line
  extending from Orient to Shelby, moving east at 55 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.

* Severe thunderstorms will be near...
  Gann Valley around 335 AM CDT.

Other locations in the path of these severe thunderstorms include
Cottonwood Lake, Redfield and Twin Lakes.

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 4488 9926 4489 9834 4463 9835 4463 9871
      4420 9870 4419 9893 4394 9893 4393 9928
TIME...MOT...LOC 0823Z 275DEG 48KT 4491 9912 4395 9917 

HAIL...1.00IN
WIND...60MPH
 
$$

Parkin

2 follow-up statements

026 
WWUS53 KABR 110859
SVSABR

Severe Weather Statement
National Weather Service Aberdeen SD
359 AM CDT Fri Jun 11 2021

SDC017-110908-
/O.CAN.KABR.SV.W.0030.000000T0000Z-210611T0915Z/
Buffalo SD-
359 AM CDT Fri Jun 11 2021

...THE SEVERE THUNDERSTORM WARNING FOR BUFFALO COUNTY IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 700 AM CDT for
central and northeastern South Dakota.

LAT...LON 4489 9834 4463 9835 4463 9871 4420 9870
      4419 9886 4488 9895
TIME...MOT...LOC 0858Z 073DEG 7KT 4488 9873 4392 9878 

$$

SDC059-115-110915-
/O.CON.KABR.SV.W.0030.000000T0000Z-210611T0915Z/
Hand SD-Spink SD-
359 AM CDT Fri Jun 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 AM CDT
FOR EASTERN HAND AND SOUTHWESTERN SPINK COUNTIES...

At 358 AM CDT, severe thunderstorms were located along a line
extending from Zell to 12 miles southeast of Gann Valley, moving west
at 10 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.

These severe thunderstorms will remain over mainly rural areas of
eastern Hand and southwestern Spink Counties.

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 4489 9834 4463 9835 4463 9871 4420 9870
      4419 9886 4488 9895
TIME...MOT...LOC 0858Z 073DEG 7KT 4488 9873 4392 9878 

HAIL...1.00IN
WIND...60MPH
 
$$

Parkin

445 
WWUS53 KABR 110912 RRA
SVSABR

Severe Weather Statement
National Weather Service Aberdeen SD
412 AM CDT Fri Jun 11 2021

SDC059-115-110922-
/O.EXP.KABR.SV.W.0030.000000T0000Z-210611T0915Z/
Hand SD-Spink SD-
412 AM CDT Fri Jun 11 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN HAND AND SOUTHWESTERN
SPINK COUNTIES WILL EXPIRE AT 415 AM CDT...
    
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning will
be allowed to expire.  However gusty winds are still possible with
these thunderstorms.

A Severe Thunderstorm Watch remains in effect until 700 AM CDT for
central and northeastern South Dakota.

LAT...LON 4489 9834 4463 9835 4463 9871 4420 9870
      4419 9886 4488 9895
TIME...MOT...LOC 0912Z 275DEG 48KT 4486 9847 4390 9853 

$$

Wise

The office that day

Everything else NWS Aberdeen, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 10, 11:06 PM CDT	Severe Thunderstorm Warning	ABR	Corson	39 min
Jun 11, 1:02 AM CDT	Severe Thunderstorm Warning	ABR	Corson, Dewey	43 min
Jun 11, 1:15 AM CDT	Severe Thunderstorm Warning	ABR	Dewey, Jones, Stanley	45 min
Jun 11, 1:47 AM CDT	Special Weather Statement	ABR	Walworth	43 min
Jun 11, 2:37 AM CDT	Severe Thunderstorm Warning	ABR	Edmunds, Faulk, McPherson, Potter, Walworth	38 min
Jun 11, 2:54 AM CDT	Severe Thunderstorm Warning	ABR	Faulk, Potter, Sully	36 min
Jun 11, 3:16 AM CDT	Severe Thunderstorm Warning	ABR	Campbell, Edmunds, Faulk, McPherson, Potter, Walworth	44 min
Jun 11, 3:38 AM CDT	Severe Thunderstorm Warning	ABR	Brown, Day, Edmunds, Faulk, McPherson, Marshall and 1 more	52 min
Jun 11, 4:16 AM CDT	Severe Thunderstorm Warning	ABR	Brown, Clark, Codington, Day, Grant, Marshall and 2 more	44 min
Jun 11, 4:49 AM CDT	Severe Thunderstorm Warning	ABR	Clark, Codington, Grant, Hamlin, Spink	41 min
Jun 11, 5:02 AM CDT	Severe Thunderstorm Warning	ABR	Clark, Codington, Day, Deuel, Grant, Marshall and 1 more	43 min
Jun 11, 5:35 AM CDT	Severe Thunderstorm Warning	ABR	Codington, Deuel, Hamlin	40 min
Jun 11, 5:49 AM CDT	Severe Thunderstorm Warning	ABR	Codington, Deuel, Grant, Roberts	33 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2021 Every 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.