Alert archive / South Dakota / Tornado Warnings in 2006

Tornado Warning 21, NWS Sioux Falls, SD

August 24, 2006Miner County, South Dakota

NWS Sioux Falls, SD issued this tornado warning at Aug 24, 2006, 8:01 PM CDT for Miner County, South Dakota. It was in force for 36 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
Aug 24, 2006, 8:01 PM CDT (01:01 UTC)
Expired
Aug 24, 2006, 8:37 PM CDT
In force
36 min
Issued by
NWS Sioux Falls, SD
Area
Counties, with a storm outline in the text

County Miner County, SD

The radar

The Sioux Falls radar (KFSD), 96 km from the middle of the area, began a volume at 01:02 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
Aug 24, 5:51 PM CDTTornado WatchSPC4 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 1.0 hours before the alert went out and 104 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 00:00Z on 2006-08-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1638 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, Aberdeen, SD at 00:00Z on 2006-08-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 87 square meters per square second.19395878Sfc1 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
1638 J/kg
Mixed-layer CIN
-178 J/kg
Mixed-layer LCL
552 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
87 m²/s²
0-3 km storm-relative helicity
139 m²/s²
Significant tornado parameter
0.2
Supercell composite
7.9

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KFSD 250101
TORFSD
SDC097-250200-
/O.NEW.KFSD.TO.W.0021.060825T0101Z-060825T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
801 PM CDT THU AUG 24 2006

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

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

* UNTIL 900 PM CDT

* AT 801 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES
  NORTHWEST OF CARTHAGE...OR ABOUT 22 MILES SOUTHEAST OF HURON...
  MOVING EAST AT 30 MPH.

* THE TORNADO WILL BE NEAR...
  CARTHAGE AT 810 PM...

IF YOU ARE IN THE PATH OF THIS STORM...TAKE COVER IMMEDIATELY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT FRIDAY MORNING
FOR SOUTHWEST MINNESOTA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL
1100 PM CDT THURSDAY EVENING FOR SOUTHWEST MINNESOTA. A TORNADO WATCH
ALSO REMAINS IN EFFECT UNTIL MIDNIGHT CDT FRIDAY MORNING FOR
NORTHWEST IOWA AND SOUTHWEST MINNESOTA AND SOUTHEASTERN SOUTH DAKOTA.

LAT...LON 4419 9785 4402 9785 4403 9739 4420 9739

$$
BT
3 follow-up statements
000 
WWUS53 KFSD 250113
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
810 PM CDT THU AUG 24 2006

SDC097-250200-
/O.CON.KFSD.TO.W.0021.000000T0000Z-060825T0200Z/
MINER SD-
810 PM CDT THU AUG 24 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR NORTHERN 
MINER COUNTY...

AT 810 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED 3 MILES EAST OF
CARTHAGE...OR ABOUT 29 MILES NORTHWEST OF MADISON...MOVING SOUTHEAST
AT 30 MPH.

THE TORNADO WILL BE NEAR...
  CARTHAGE AT 810 PM...
  RURAL MINER COUNTY THROUGH 845 PM...

DOPPLER RADAR CONTINUES TO INDICATE STRONG ROTATION JUST NORTH OF 
CARTHAGE.  THIS ROTATION HAS ALSO BEEN CONFIRMED BY TRAINED SPOTTER. 

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT FRIDAY MORNING
FOR SOUTHWEST MINNESOTA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL
1100 PM CDT THURSDAY EVENING FOR SOUTHWEST MINNESOTA. A TORNADO WATCH
ALSO REMAINS IN EFFECT UNTIL MIDNIGHT CDT FRIDAY MORNING FOR
NORTHWEST IOWA AND SOUTHWEST MINNESOTA AND SOUTHEASTERN SOUTH DAKOTA.

LAT...LON 4419 9785 4402 9785 4403 9739 4420 9739

$$

BT
000 
WWUS53 KFSD 250118
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
817 PM CDT THU AUG 24 2006

SDC097-250200-
/O.CON.KFSD.TO.W.0021.000000T0000Z-060825T0200Z/
MINER SD-
817 PM CDT THU AUG 24 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR NORTHERN 
MINER COUNTY...

AT 817 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED 6 MILES EAST OF
CARTHAGE...OR ABOUT 28 MILES NORTHWEST OF MADISON...MOVING EAST AT 25
MPH.

THE TORNADO WILL BE NEAR...
  RURAL MINER COUNTY THROUGH 845 PM CDT

DOPPLER RADAR CONTINUES TO INDICATE STRONG ROTATION TO THE NORTH AND 
EAST OF CARTHAGE. IF YOU ARE IN THE PATH OF THIS STORM...SEEK 
SHELTER NOW...THIS IS A DANGEROUS SITUATION.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT FRIDAY MORNING
FOR SOUTHWEST MINNESOTA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL
1100 PM CDT THURSDAY EVENING FOR SOUTHWEST MINNESOTA. A TORNADO WATCH
ALSO REMAINS IN EFFECT UNTIL MIDNIGHT CDT FRIDAY MORNING FOR
NORTHWEST IOWA AND SOUTHWEST MINNESOTA AND SOUTHEASTERN SOUTH DAKOTA.

LAT...LON 4419 9785 4402 9785 4403 9739 4420 9739

$$
BT
000 
WWUS53 KFSD 250137
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
836 PM CDT THU AUG 24 2006

SDC097-250146-
/O.CAN.KFSD.TO.W.0021.000000T0000Z-060825T0200Z/
MINER SD-
836 PM CDT THU AUG 24 2006

...THE TORNADO WARNING FOR NORTHERN MINER COUNTY IS CANCELLED...

THE STORM HAS WEAKENED AND EXITED THE COUNTY.

A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL MIDNIGHT CDT FRIDAY 
MORNING FOR NORTHWEST IOWA AND SOUTHWEST MINNESOTA AND SOUTHEASTERN 
SOUTH DAKOTA.

LAT...LON 4419 9785 4402 9785 4403 9739 4420 9739

$$
RSR

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 24, 7:11 PM CDTTornado WarningFSDBeadle64 min
Aug 24, 7:23 PM CDTTornado WarningFSDKingsbury52 min
Aug 24, 8:12 PM CDTTornado WarningFSDKingsbury33 min
Aug 24, 8:27 PM CDTSevere Thunderstorm WarningFSDHanson, McCook37 min
Aug 24, 9:25 PM CDTSevere Thunderstorm WarningFSDMinnehaha35 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.