Alert archive / South Dakota / Tornado Warnings in 2013

Tornado Warning 8, NWS Sioux Falls, SD

June 21, 2013Beadle County, Kingsbury County, South Dakota

NWS Sioux Falls, SD issued this tornado warning at Jun 21, 2013, 2:53 PM CDT for Beadle County, Kingsbury County, South Dakota. It was in force for 37 min. 3 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 21, 2013, 2:53 PM CDT (19:53 UTC)
Expired: Jun 21, 2013, 3:30 PM CDT
In force: 37 min
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.75 in

Counties Beadle County, SD, Kingsbury County, SD

The radar

The Sioux Falls radar (KFSD), 118 km from the middle of the area, began a volume at 19:53 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 21, 3:03 PM CDT	TORNADO	6 N Iroquois, SD	STRAIGHT LINE WINDS OF 70 MPH IN THE VICINITY ALSO.
Jun 21, 3:05 PM CDT	TSTM WND DMG	Iroquois, SD	NUMEROUS 6-8 INCH IN DIAMETER BRANCHES DOWN AROUND TOWN.
Jun 21, 3:12 PM CDT	TORNADO	5 W Erwin, SD	TORNADO BRIEFLY TOUCHED DOWN.

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 21, 9:09 AM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 21, 1:58 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 7.9 hours before the alert went out and 84 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: 267 J/kg
Mixed-layer CIN: -511 J/kg
Mixed-layer LCL: 1123 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: -71 m²/s²
0-3 km storm-relative helicity: -66 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

143 
WFUS53 KFSD 211953
TORFSD
SDC005-077-212030-
/O.NEW.KFSD.TO.W.0008.130621T1953Z-130621T2030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
253 PM CDT FRI JUN 21 2013

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL BEADLE COUNTY IN EAST CENTRAL SOUTH DAKOTA...
  NORTHERN KINGSBURY COUNTY IN EAST CENTRAL SOUTH DAKOTA...

* UNTIL 330 PM CDT

* AT 249 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR CAVOUR...AND MOVING EAST AT 50 MPH.

  HAZARD...TORNADO AND GOLF BALL SIZE HAIL.

  SOURCE...RADAR INDICATED ROTATION.

  IMPACT...MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE TO
           ROOFS...WINDOWS AND VEHICLES WILL OCCUR. FLYING DEBRIS
           WILL BE DEADLY TO PEOPLE AND ANIMALS. TREE DAMAGE IS
           LIKELY.

* THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF EAST CENTRAL
  BEADLE AND NORTHERN KINGSBURY COUNTIES...INCLUDING THE FOLLOWING
  LOCATIONS...BANCROFT AND ERWIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4455 9713 4450 9713 4449 9717 4427 9803
      4448 9813 4456 9785
TIME...MOT...LOC 1953Z 257DEG 42KT 4439 9794

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

BT

4 follow-up statements

525 
WWUS53 KFSD 212010
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
310 PM CDT FRI JUN 21 2013

SDC005-077-212030-
/O.CON.KFSD.TO.W.0008.000000T0000Z-130621T2030Z/
KINGSBURY SD-BEADLE SD-
310 PM CDT FRI JUN 21 2013

...A TORNADO WARNING REMAINS IN EFFECT FOR EAST CENTRAL BEADLE AND
NORTHERN KINGSBURY COUNTIES UNTIL 330 PM CDT...

AT 307 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 8 MILES NORTHEAST OF IROQUOIS...AND MOVING EAST AT 50
MPH.

HAZARD...TORNADO AND GOLF BALL SIZE HAIL.

SOURCE...RADAR INDICATED ROTATION.

IMPACT...MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE TO
         ROOFS...WINDOWS AND VEHICLES WILL OCCUR. FLYING DEBRIS WILL
         BE DEADLY TO PEOPLE AND ANIMALS. TREE DAMAGE IS LIKELY.

LOCATIONS IMPACTED INCLUDE...
BADGER AND ERWIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4455 9713 4450 9713 4449 9717 4427 9803
      4448 9813 4456 9785
TIME...MOT...LOC 2011Z 257DEG 42KT 4443 9765

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

BT

515 
WWUS53 KFSD 212013
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
313 PM CDT FRI JUN 21 2013

SDC005-077-212030-
/O.CON.KFSD.TO.W.0008.000000T0000Z-130621T2030Z/
KINGSBURY SD-BEADLE SD-
313 PM CDT FRI JUN 21 2013

...A TORNADO WARNING REMAINS IN EFFECT FOR EAST CENTRAL BEADLE AND
NORTHERN KINGSBURY COUNTIES UNTIL 330 PM CDT...

AT 311 PM CDT...A CONFIRMED TORNADO WAS LOCATED 6 MILES NORTHWEST OF
DE SMET...AND MOVING EAST AT 50 MPH.

HAZARD...DAMAGING TORNADO AND GOLF BALL SIZE HAIL.

SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO 6 MILES NORTH OF         
         IROQUOIS AT 303 PM. 

IMPACT...MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE TO
         ROOFS...WINDOWS AND VEHICLES WILL OCCUR. FLYING DEBRIS WILL
         BE DEADLY TO PEOPLE AND ANIMALS. TREE DAMAGE IS LIKELY.

LOCATIONS IMPACTED INCLUDE...
BADGER AND ERWIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW. MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID
WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE
CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4455 9713 4450 9713 4449 9717 4427 9803
      4448 9813 4456 9785
TIME...MOT...LOC 2012Z 257DEG 42KT 4443 9763

TORNADO...OBSERVED
HAIL...1.75IN

$$

BT

144 
WWUS53 KFSD 212018
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
318 PM CDT FRI JUN 21 2013

SDC005-077-212030-
/O.CON.KFSD.TO.W.0008.000000T0000Z-130621T2030Z/
KINGSBURY SD-BEADLE SD-
318 PM CDT FRI JUN 21 2013

...A TORNADO WARNING REMAINS IN EFFECT FOR EAST CENTRAL BEADLE AND
NORTHERN KINGSBURY COUNTIES UNTIL 330 PM CDT...

AT 315 PM CDT...A CONFIRMED TORNADO WAS LOCATED 6 MILES NORTH OF DE
SMET...AND MOVING EAST AT 50 MPH.

HAZARD...DAMAGING TORNADO AND GOLF BALL SIZE HAIL.

SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO 5 MILES WEST OF ERWIN AT 
312 PM.

IMPACT...MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE TO
         ROOFS...WINDOWS AND VEHICLES WILL OCCUR. FLYING DEBRIS WILL
         BE DEADLY TO PEOPLE AND ANIMALS. TREE DAMAGE IS LIKELY.

LOCATIONS IMPACTED INCLUDE...
BADGER AND ERWIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING TORNADOES. TAKE COVER IN A
BASEMENT OR STORM SHELTER NOW!

&&

LAT...LON 4455 9713 4450 9713 4449 9717 4427 9803
      4448 9813 4456 9785
TIME...MOT...LOC 2018Z 257DEG 42KT 4447 9747

TORNADO...OBSERVED
HAIL...1.75IN

$$

225 
WWUS53 KFSD 212025
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
325 PM CDT FRI JUN 21 2013

SDC005-077-212035-
/O.EXP.KFSD.TO.W.0008.000000T0000Z-130621T2030Z/
KINGSBURY SD-BEADLE SD-
325 PM CDT FRI JUN 21 2013

...THE TORNADO WARNING FOR EAST CENTRAL BEADLE AND NORTHERN KINGSBURY
COUNTIES WILL EXPIRE AT 330 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.  HOWEVER...HAIL AND GUSTY WINDS ARE STILL POSSIBLE WITH THIS 
THUNDERSTORM.

LAT...LON 4455 9713 4450 9713 4449 9717 4427 9803
      4448 9813 4456 9785
TIME...MOT...LOC 2025Z 257DEG 42KT 4449 9736

$$

BT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 1:40 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Beadle, Brule, Jerauld	50 min
Jun 21, 1:56 PM CDT	Severe Thunderstorm Warning	FSD	Beadle	49 min
Jun 21, 2:07 PM CDT	Tornado Warning	FSD	Beadle	38 min
Jun 21, 2:12 PM CDT	Flash Flood Watch	FSD	Beadle, Brookings, Davison, Hanson, Kingsbury, Lake and 7 more	17 hr
Jun 21, 2:17 PM CDT	Severe Thunderstorm Warning	FSD	Beadle	28 min
Jun 21, 2:30 PM CDT	Severe Thunderstorm Warning	FSD	Beadle, Jerauld, Kingsbury, Miner, Sanborn	45 min
Jun 21, 2:48 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Davison, Hanson, Jerauld, McCook, Miner and 1 more	27 min
Jun 21, 3:03 PM CDT	Severe Thunderstorm Warning	FSD	Beadle, Brookings, Kingsbury, Lake, Miner, Moody and 1 more	42 min
Jun 21, 3:40 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Kingsbury, Lake, Miner, Moody	50 min
Jun 21, 4:23 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Kingsbury, Moody	37 min

Nearby

Tornado Warnings in South Dakota, 2013 Every tornado warning in 2013 Tornadoes in 2013

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.