Alert archive / South Dakota / Tornado Warnings in 2012

Tornado Warning 16, NWS Aberdeen, SD

August 3, 2012Spink County, South Dakota

NWS Aberdeen, SD issued this tornado warning at Aug 3, 2012, 5:40 PM CDT for Spink County, South Dakota. It was in force for 50 min. 7 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
Aug 3, 2012, 5:40 PM CDT (22:40 UTC)
Expired
Aug 3, 2012, 6:30 PM CDT
In force
50 min
Issued by
NWS Aberdeen, SD
Area
Storm-based polygon

County Spink County, SD

The radar

The Aberdeen radar (KABR), 62 km from the middle of the area, began a volume at 22:41 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

TimeReportWhereRemark
Aug 3, 5:40 PM CDTTSTM WND GST 80Redfield, SD70-80 MPH WIND LARGE BRANCHES DOWN QUARTER SIZED HAIL AND 0.94 INCHES RAIN
Aug 3, 5:45 PM CDTTORNADO2 Ssw Redfield, SDPUBLIC REPORTED A BRIEF TORNADO TOUCHDOWN IN A CORN FIELD AROUND 545PM. TORNADO WAS ON THE GROUND FOR ABOUT 1 MINUTE.
Aug 3, 5:55 PM CDTTSTM WND DMG6 Nne Frankfort, SD3 GRAIN BINS DESTROYED. NUMEROUS TREES IN SHELTER BELT DOWN. SIGNIFICANT CROP DAMAGE FROM COMBINATION OF WINDS AND DIME SIZED HAIL.
Aug 3, 5:59 PM CDTTSTM WND GST 60Doland, SD
Aug 3, 6:00 PM CDTTSTM WND DMG3 W Turton, SDNUMEROUS TREES DOWN...POWER LINES DOWN...BUILDING MOVE 50 FEET OFF FOUNDATION...DAMAGED OCCURED FROM 3 TO 6 MILES WEST OF TURTON
Aug 3, 6:07 PM CDTTSTM WND GST 80Turton, SDWIND 70-80 MPH 0.85 INCHES OF RAIN
Aug 3, 6:08 PM CDTHAIL 1Doland, SD50 MPH

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.

IssuedProductOfficeLasted
Aug 3, 2:14 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 10.7 hours before the alert went out and 9 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 2012-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 254 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 12:00Z on 2012-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 93 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
254 J/kg
Mixed-layer CIN
-271 J/kg
Mixed-layer LCL
1688 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
93 m²/s²
0-3 km storm-relative helicity
132 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.

104 
WFUS53 KABR 032240
TORABR
SDC115-032330-
/O.NEW.KABR.TO.W.0016.120803T2240Z-120803T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
540 PM CDT FRI AUG 3 2012

THE NATIONAL WEATHER SERVICE IN ABERDEEN HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL SPINK COUNTY IN NORTHEAST SOUTH DAKOTA...

* UNTIL 630 PM CDT

* AT 537 PM CDT...THE PUBLIC REPORTED A TORNADO NEAR REDFIELD.
  DOPPLER RADAR SHOWED THIS TORNADO MOVING EAST AT 50 MPH.

  AT 537 PM CDT THE PUBLIC REPORTED A TORNADO 3 MILES WEST AND 1     
  MILE SOUTH OF REDFIELD.  

* THE TORNADO WILL BE NEAR...
  FRANKFORT...GLENDALE COLONY AND SPINK COLONY AROUND 555 PM CDT...
  DOLAND AND TURTON AROUND 605 PM CDT...
  HILLSIDE COLONY AROUND 610 PM CDT...

THIS WARNING INCLUDES HIGHWAY 281 BETWEEN MILE MARKERS 143 AND 162.

THIS WARNING INCLUDES HIGHWAY 212 BETWEEN MILE MARKERS 297 AND 332.

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 4508 9800 4467 9799 4474 9870 4497 9871
TIME...MOT...LOC 2239Z 265DEG 43KT 4487 9855

$$
TMT
1 follow-up statement
947 
WWUS53 KABR 032329
SVSABR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
629 PM CDT FRI AUG 3 2012

SDC115-032338-
/O.EXP.KABR.TO.W.0016.000000T0000Z-120803T2330Z/
SPINK SD-
629 PM CDT FRI AUG 3 2012

...THE TORNADO WARNING FOR CENTRAL SPINK COUNTY WILL EXPIRE AT 630 PM
CDT/530 PM MDT/...

THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
EXPIRED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT 
FOR THE AREA...HAIL...GUSTY WINDS AND HEAVY RAIN ARE STILL POSSIBLE 
WITH THIS THUNDERSTORM.

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT. 

LAT...LON 4508 9800 4467 9799 4474 9870 4497 9871
TIME...MOT...LOC 2328Z 265DEG 43KT 4492 9773

$$
TMT

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 2:01 PM CDTSevere Thunderstorm WarningABRCampbell, Corson, Dewey, Walworth44 min
Aug 3, 2:41 PM CDTSevere Thunderstorm WarningABRCampbell, Corson, Walworth64 min
Aug 3, 3:05 PM CDTSevere Thunderstorm WarningABRCampbell, Corson, Dewey, Walworth55 min
Aug 3, 3:40 PM CDTSevere Thunderstorm WarningABRBrown, Edmunds, Faulk, Spink65 min
Aug 3, 3:56 PM CDTSevere Thunderstorm WarningABRCampbell, Edmunds, McPherson, Walworth64 min
Aug 3, 4:21 PM CDTTornado WarningABREdmunds24 min
Aug 3, 4:35 PM CDTSevere Thunderstorm WarningABREdmunds, Faulk25 min
Aug 3, 4:43 PM CDTTornado WarningABREdmunds, Faulk26 min
Aug 3, 4:44 PM CDTSevere Thunderstorm WarningABRBrown, Edmunds, Faulk, Spink61 min
Aug 3, 4:54 PM CDTSevere Thunderstorm WarningABRBrown, Edmunds, McPherson51 min
Aug 3, 5:17 PM CDTSevere Thunderstorm WarningABRFaulk, Hand, Hyde, Spink58 min
Aug 3, 5:34 PM CDTSevere Thunderstorm WarningABRBrown, Clark, Day, McPherson, Marshall, Spink56 min
Aug 3, 5:53 PM CDTSevere Thunderstorm WarningABRClark, Day, Hand, Spink67 min
Aug 3, 6:25 PM CDTAreal Flood AdvisoryABRSpink3 hr
Aug 3, 6:35 PM CDTSevere Thunderstorm WarningABRBrown, Clark, Codington, Day, Hamlin, Spink25 min
Aug 3, 6:53 PM CDTSevere Thunderstorm WarningABRClark, Codington, Day, Deuel, Grant, Hamlin67 min

Nearby

Tornado Warnings in South Dakota, 2012Every tornado warning in 2012Tornadoes in 2012

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.