Alert archive / South Dakota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 22, NWS Aberdeen, SD

June 8, 2021Corson County, Dewey County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jun 8, 2021, 10:54 PM MDT for Corson County, Dewey County, South Dakota. It was in force for 66 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 8, 2021, 10:54 PM MDT (04:54 UTC)
Expired
Jun 9, 2021, 12:00 AM MDT
In force
66 min
Issued by
NWS Aberdeen, SD
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Corson County, SD, Dewey County, SD

The radar

The Bismarck radar (KBIS), 159 km from the middle of the area, began a volume at 04:58 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.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 4.9 hours before the alert went out and 160 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-pSkew-T log-p diagram, Bismarck Municip, ND at 00:00Z on 2021-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 113 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 00:00Z on 2021-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
113 J/kg
Mixed-layer CIN
-181 J/kg
Mixed-layer LCL
2317 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
176 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

320 
WUUS53 KABR 090454
SVRABR
SDC031-041-090600-
/O.NEW.KABR.SV.W.0022.210609T0454Z-210609T0600Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Aberdeen SD
1054 PM MDT Tue Jun 8 2021

The National Weather Service in Aberdeen has issued a

* Severe Thunderstorm Warning for...
  Western Corson County in north central South Dakota...
  Western Dewey County in north central South Dakota...

* Until midnight MDT.

* At 1054 PM MDT, severe thunderstorms were located along a line
  extending from near Shadehill to 7 miles north of Iron Lightning to
  near Intersection of Cherry Creek and Sunnybrook Roads to near
  Bridger, moving northeast at 40 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

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

* Severe thunderstorms will be near...
  Thunder Hawk around 1110 PM MDT.

Other locations in the path of these severe thunderstorms include
Lantry, Bear Creek, Keldron, Green Grass, Klein Ranch, Black Horse,
Eagle Butte, Timber Lake, Little Moreau Rec Area and Parade.

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 4594 10200 4595 10126 4536 10100 4483 10114
      4499 10114 4500 10150 4547 10147 4547 10200
TIME...MOT...LOC 0454Z 222DEG 35KT 4580 10213 4529 10184 4485 10167
4450 10183

HAIL...0.75IN
WIND...60MPH
 
$$

TMT
1 follow-up statement
050 
WWUS53 KABR 090534
SVSABR

Severe Weather Statement
National Weather Service Aberdeen SD
1134 PM MDT Tue Jun 8 2021

SDC031-041-090600-
/O.CON.KABR.SV.W.0022.000000T0000Z-210609T0600Z/
Corson SD-Dewey SD-
1134 PM MDT Tue Jun 8 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT
FOR WESTERN CORSON AND WESTERN DEWEY COUNTIES...

At 1134 PM MDT, severe thunderstorms were located along a line
extending from 9 miles north of Keldron to 9 miles southwest of Klein
Ranch to near Green Grass to 9 miles southeast of Intersection of
Cherry Creek and Sunnybrook Roads, moving northeast at 40 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
  Klein Ranch, Black Horse, Little Moreau Rec Area, Eagle Butte, 
  Timber Lake and Parade.

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 4594 10200 4595 10126 4536 10100 4483 10114
      4499 10114 4500 10150 4547 10147 4547 10200
TIME...MOT...LOC 0534Z 222DEG 35KT 4608 10178 4557 10149 4512 10132
4478 10148

HAIL...0.75IN
WIND...60MPH
 
$$

TMT

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 8, 6:17 PM MDTSevere Thunderstorm WarningABRCorson, Dewey43 min
Jun 8, 6:22 PM MDTFlash Flood WarningABRCorson3 hr
Jun 8, 6:44 PM MDTFlash Flood WarningABRCorson, Dewey3 hr
Jun 8, 6:44 PM MDTSpecial Weather StatementABRCorson31 min
Jun 8, 7:02 PM MDTSpecial Weather StatementABRCorson28 min
Jun 8, 7:11 PM MDTSevere Thunderstorm WarningABRCorson, Dewey49 min
Jun 8, 7:21 PM MDTTornado Warning Tornado observedABRCorson, Dewey24 min
Jun 8, 7:25 PM MDTSevere Thunderstorm WarningABRCorson, Dewey50 min
Jun 8, 7:44 PM MDTTornado WarningABRCorson16 min
Jun 8, 8:11 PM MDTSpecial Weather StatementABRCorson34 min
Jun 8, 8:28 PM MDTSevere Thunderstorm WarningABRDewey47 min
Jun 8, 9:12 PM MDTSevere Thunderstorm WarningABRDewey36 min
Jun 8, 9:33 PM MDTFlash Flood Warning Considerable damage threatABRCorson, Dewey8 hr
Jun 8, 11:58 PM MDTSevere Thunderstorm WarningABRDewey, Jones, Stanley37 min
Jun 9, 12:03 AM MDTSpecial Weather StatementABRCorson, Dewey57 min
Jun 9, 12:40 AM MDTSpecial Weather StatementABRJones, Stanley65 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.