Alert archive / South Dakota / Tornado Warnings in 2021

Tornado Warning 3, NWS Aberdeen, SD

June 8, 2021Corson County, South Dakota

NWS Aberdeen, SD issued this tornado warning at Jun 8, 2021, 7:44 PM MDT for Corson County, South Dakota. It was in force for 16 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, 7:44 PM MDT (01:44 UTC)
Expired: Jun 8, 2021, 8:00 PM MDT
In force: 16 min
Issued by: NWS Aberdeen, SD
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Corson County, SD

The radar

The Bismarck radar (KBIS), 126 km from the middle of the area, began a volume at 01:45 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, 1.7 hours before the alert went out and 126 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: 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.

553 
WFUS53 KABR 090144
TORABR
SDC031-090215-
/O.NEW.KABR.TO.W.0003.210609T0144Z-210609T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Aberdeen SD
744 PM MDT Tue Jun 8 2021

The National Weather Service in Aberdeen has issued a

* Tornado Warning for...
  Southeastern Corson County in north central South Dakota...

* Until 815 PM MDT.
    
* At 743 PM MDT, a severe thunderstorm capable of producing a tornado
  was located near Little Eagle, or 14 miles south of Mclaughlin,
  moving north at 15 mph.

  HAZARD...Tornado and quarter size hail.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Little Eagle.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4554 10082 4558 10097 4580 10091 4572 10063
TIME...MOT...LOC 0143Z 198DEG 13KT 4561 10087 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Lueck

1 follow-up statement

615 
WWUS53 KABR 090200
SVSABR

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

SDC031-090206-
/O.CAN.KABR.TO.W.0003.000000T0000Z-210609T0215Z/
Corson SD-
800 PM MDT Tue Jun 8 2021

...THE TORNADO WARNING FOR SOUTHEASTERN CORSON COUNTY IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.  However gusty winds and
heavy rain are still possible with this thunderstorm.

Remember, a Severe Thunderstorm Warning still remains in effect for
southern Corson and northern Dewey Counties until 815 pm MDT.

LAT...LON 4554 10082 4558 10097 4580 10091 4572 10063
TIME...MOT...LOC 0155Z 198DEG 13KT 4566 10085 

$$

Lueck

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 8, 6:17 PM MDT	Severe Thunderstorm Warning	ABR	Corson, Dewey	43 min
Jun 8, 6:22 PM MDT	Flash Flood Warning	ABR	Corson	3 hr
Jun 8, 6:44 PM MDT	Flash Flood Warning	ABR	Corson, Dewey	3 hr
Jun 8, 6:44 PM MDT	Special Weather Statement	ABR	Corson	31 min
Jun 8, 7:02 PM MDT	Special Weather Statement	ABR	Corson	28 min
Jun 8, 7:11 PM MDT	Severe Thunderstorm Warning	ABR	Corson, Dewey	49 min
Jun 8, 7:21 PM MDT	Tornado Warning Tornado observed	ABR	Corson, Dewey	24 min
Jun 8, 7:25 PM MDT	Severe Thunderstorm Warning	ABR	Corson, Dewey	50 min
Jun 8, 8:11 PM MDT	Special Weather Statement	ABR	Corson	34 min
Jun 8, 8:28 PM MDT	Severe Thunderstorm Warning	ABR	Dewey	47 min
Jun 8, 9:12 PM MDT	Severe Thunderstorm Warning	ABR	Dewey	36 min
Jun 8, 9:33 PM MDT	Flash Flood Warning Considerable damage threat	ABR	Corson, Dewey	8 hr
Jun 8, 10:54 PM MDT	Severe Thunderstorm Warning	ABR	Corson, Dewey	66 min
Jun 8, 11:58 PM MDT	Severe Thunderstorm Warning	ABR	Dewey, Jones, Stanley	37 min
Jun 9, 12:03 AM MDT	Special Weather Statement	ABR	Corson, Dewey	57 min
Jun 9, 12:40 AM MDT	Special Weather Statement	ABR	Jones, Stanley	65 min

Nearby

Tornado Warnings in South Dakota, 2021 Every tornado warning in 2021 Tornadoes 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.