Alert archive / South Dakota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 35, NWS Aberdeen, SD

June 11, 2021Codington County, Deuel County, Hamlin County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jun 11, 2021, 5:35 AM CDT for Codington County, Deuel County, Hamlin County, South Dakota. It was in force for 40 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, 5:35 AM CDT (10:35 UTC)
Expired: Jun 11, 2021, 6:15 AM CDT
In force: 40 min
Issued by: NWS Aberdeen, SD
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Codington County, SD, Deuel County, SD, Hamlin County, SD

The radar

The Sioux Falls radar (KFSD), 128 km from the middle of the area, began a volume at 10:34 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, 5:46 AM CDT	TSTM WND GST 57	3 Wsw Estelline, 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, 10.6 hours before the alert went out and 110 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.

399 
WUUS53 KABR 111035
SVRABR
SDC029-039-057-111115-
/O.NEW.KABR.SV.W.0035.210611T1035Z-210611T1115Z/

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

The National Weather Service in Aberdeen has issued a

* Severe Thunderstorm Warning for...
  Deuel County in northeastern South Dakota...
  Hamlin County in northeastern South Dakota...
  Southern Codington County in northeastern South Dakota...

* Until 615 AM CDT.

* At 535 AM CDT, a severe thunderstorm was located near Claremont
  Colony, or 12 miles west of Clear Lake, moving east at 65 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Clear Lake and Altamont around 545 AM CDT.
  Brandt, Moritz and Lake Alice around 550 AM CDT.
  Gary and Lake Cochrane Rec Area around 555 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4455 9742 4498 9741 4496 9646 4456 9645
TIME...MOT...LOC 1035Z 268DEG 57KT 4477 9693 

HAIL...<.75IN
WIND...60MPH
 
$$

Wise

1 follow-up statement

810 
WWUS53 KABR 111114
SVSABR

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

SDC029-039-057-111124-
/O.EXP.KABR.SV.W.0035.000000T0000Z-210611T1115Z/
Deuel SD-Hamlin SD-Codington SD-
614 AM CDT Fri Jun 11 2021

...THE SEVERE THUNDERSTORM WARNING FOR DEUEL...HAMLIN AND SOUTHERN
CODINGTON COUNTIES WILL EXPIRE AT 615 AM CDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned 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 700 AM CDT for
northeastern South Dakota.

LAT...LON 4455 9742 4498 9741 4496 9646 4456 9645
TIME...MOT...LOC 1114Z 268DEG 57KT 4479 9606 

$$

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, 3:23 AM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hand, Spink	52 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, 5:49 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.