Alert archive / South Dakota / Tornado Warnings in 2011

Tornado Warning 8, NWS Aberdeen, SD

June 14, 2011Hand County, South Dakota

NWS Aberdeen, SD issued this tornado warning at Jun 14, 2011, 4:49 PM CDT for Hand County, South Dakota. It was in force for 26 min. 1 report 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 14, 2011, 4:49 PM CDT (21:49 UTC)
Expired
Jun 14, 2011, 5:15 PM CDT
In force
26 min
Issued by
NWS Aberdeen, SD
Area
Storm-based polygon

County Hand County, SD

The radar

The Aberdeen radar (KABR), 137 km from the middle of the area, began a volume at 21:49 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
Jun 14, 5:15 PM CDTHAIL 13 E Ames, SD

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 9.8 hours before the alert went out and 81 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 2011-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1348 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 2011-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 square meters per square second.1939Sfc1 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
1348 J/kg
Mixed-layer CIN
-42 J/kg
Mixed-layer LCL
527 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
88 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.

826 
WFUS53 KABR 142149
TORABR
SDC059-142215-
/O.NEW.KABR.TO.W.0008.110614T2149Z-110614T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
449 PM CDT TUE JUN 14 2011

THE NATIONAL WEATHER SERVICE IN ABERDEEN HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTH CENTRAL HAND COUNTY IN CENTRAL SOUTH DAKOTA...

* UNTIL 515 PM CDT

* AT 445 PM CDT...LOCAL LAW ENFORCEMENT REPORTED A TORNADO NEAR
  MILLER DALE COLONY...OR 12 MILES SOUTH OF MILLER. DOPPLER RADAR
  SHOWED THIS TORNADO MOVING SOUTHEAST AT 20 MPH.

* THE TORNADO WILL BE NEAR...
  DANFORTH AROUND 515 PM CDT...

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 4420 9902 4445 9916 4449 9903 4420 9877
      4419 9878
TIME...MOT...LOC 2148Z 328DEG 15KT 4435 9903

$$
DORN
2 follow-up statements
787 
WWUS53 KABR 142201
SVSABR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
501 PM CDT TUE JUN 14 2011

SDC059-142215-
/O.CON.KABR.TO.W.0008.000000T0000Z-110614T2215Z/
HAND SD-
501 PM CDT TUE JUN 14 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL HAND COUNTY
UNTIL 515 PM CDT...

AT 458 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 5 MILES NORTHEAST OF AMES...OR 13 MILES SOUTH OF
MILLER...MOVING SOUTHEAST AT 10 MPH.

AT 454 PM CDT...LOCAL LAW ENFORCEMENT REPORTED BEING UNABLE TO 
CONFIRM A VISUAL ON THE TORNADO DUE TO HEAVY RAIN. THIS IS A 
DANGEROUS STORM. MOVE TO STURDY SHELTER IMMEDIATELY IF YOU ARE IN 
THE PATH OF THIS STORM.

THIS DANGEROUS STORM WILL BE NEAR...
  DANFORTH AROUND 515 PM CDT...

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.

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

&&

LAT...LON 4420 9902 4445 9916 4449 9903 4420 9877
      4419 9878
TIME...MOT...LOC 2200Z 324DEG 9KT 4433 9903

$$
DORN
510 
WWUS53 KABR 142216
SVSABR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
516 PM CDT TUE JUN 14 2011

SDC059-142226-
/O.EXP.KABR.TO.W.0008.000000T0000Z-110614T2215Z/
HAND SD-
516 PM CDT TUE JUN 14 2011

...THE TORNADO WARNING FOR SOUTH CENTRAL HAND COUNTY HAS EXPIRED...

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

LAT...LON 4420 9902 4445 9916 4449 9903 4420 9877
      4419 9878
TIME...MOT...LOC 2201Z 324DEG 9KT 4433 9903

$$
DORN

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 2:20 PM CDTFlash Flood WarningABRCampbell, Potter, Walworth3 hr
Jun 14, 3:40 PM CDTSevere Thunderstorm WarningABRFaulk, Hand35 min
Jun 14, 3:57 PM CDTSevere Thunderstorm WarningABRFaulk, Hand63 min
Jun 14, 4:29 PM CDTTornado WarningABRHand31 min
Jun 14, 4:41 PM CDTSevere Thunderstorm WarningABRHand51 min

Nearby

Tornado Warnings in South Dakota, 2011Every tornado warning in 2011Tornadoes in 2011

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.