Alert archive / South Dakota / Tornado Warnings in 2006

Tornado Warning 9, NWS Sioux Falls, SD

May 2, 2006Kingsbury County, South Dakota

NWS Sioux Falls, SD issued this tornado warning at May 2, 2006, 6:41 PM CDT for Kingsbury County, South Dakota. It was in force for 8 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
May 2, 2006, 6:41 PM CDT (23:41 UTC)
Expired
May 2, 2006, 6:49 PM CDT
In force
8 min
Issued by
NWS Sioux Falls, SD
Area
Counties, with a storm outline in the text

County Kingsbury County, SD

The radar

The Sioux Falls radar (KFSD), 102 km from the middle of the area, began a volume at 23:43 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 2, 3:06 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 11.7 hours before the alert went out and 105 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, Aberdeen, SD at 12:00Z on 2006-05-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Aberdeen, SD at 12:00Z on 2006-05-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1725 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
63 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.

000 
WFUS53 KFSD 022343
TORFSD
SDC077-030015-
/O.NEW.KFSD.TO.W.0009.060502T2341Z-060503T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
641 PM CDT TUE MAY 2 2006

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

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

* UNTIL 715 PM CDT

* AT 641 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES         
  NORTHEAST OF HETLAND...MOVING EAST AT 25 MPH.

* THE TORNADO WILL BE NEAR...
  ARLINGTON AROUND 650 PM CDT...
  
AT 640 PM CDT MEDIA REPORTED A FUNNEL CLOUD 6 MILES SOUTHEAST OF 
HETLAND. 

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT TUESDAY EVENING
FOR NORTHWEST IOWA AND SOUTHWEST MINNESOTA AND NORTHEAST NEBRASKA AND
SOUTHEASTERN SOUTH DAKOTA.

LAT...LON 4452 9714 4433 9714 4434 9731 4435 9733
      4437 9733 4438 9731 4450 9731 4452 9730

$$

LIEBL
1 follow-up statement
000 
WWUS53 KFSD 022349
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
650 PM CDT TUE MAY 2 2006

SDC077-030000-
/O.CAN.KFSD.TO.W.0009.000000T0000Z-060503T0015Z/
KINGSBURY SD-
650 PM CDT TUE MAY 2 2006

...THE TORNADO WARNING FOR KINGSBURY COUNTY IS CANCELLED...

THE STORM HAS WEAKENED AND EXITED THE COUNTY.

LAT...LON 4452 9714 4433 9714 4434 9731 4435 9733
      4437 9733 4438 9731 4450 9731 4452 9730

$$

LIEBL

The office that day

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

IssuedProductOfficeCountiesLasted
May 2, 4:20 PM CDTSevere Thunderstorm WarningFSDClay25 min
May 2, 4:35 PM CDTSevere Thunderstorm WarningFSDUnion25 min
May 2, 4:59 PM CDTSevere Thunderstorm WarningFSDUnion31 min
May 2, 6:20 PM CDTTornado WarningFSDKingsbury25 min
May 2, 6:35 PM CDTTornado WarningFSDBrookings17 min

Nearby

Tornado Warnings in South Dakota, 2006Every tornado warning in 2006Tornadoes in 2006

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.