Alert archive / South Dakota / Tornado Warnings in 2011

Tornado Warning 7, NWS Aberdeen, SD

June 14, 2011Hand County, South Dakota

NWS Aberdeen, SD issued this tornado warning at Jun 14, 2011, 4:29 PM CDT for Hand County, South Dakota. It was in force for 31 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
Jun 14, 2011, 4:29 PM CDT (21:29 UTC)
Expired
Jun 14, 2011, 5:00 PM CDT
In force
31 min
Issued by
NWS Aberdeen, SD
Area
Storm-based polygon

County Hand County, SD

The radar

The Aberdeen radar (KABR), 105 km from the middle of the area, began a volume at 21:31 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 nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 9.5 hours before the alert went out and 59 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.

115 
WFUS53 KABR 142129
TORABR
SDC059-142200-
/O.NEW.KABR.TO.W.0007.110614T2129Z-110614T2200Z/

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

THE NATIONAL WEATHER SERVICE IN ABERDEEN HAS ISSUED A

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

* UNTIL 500 PM CDT

* AT 427 PM CDT...LOCAL LAW ENFORCEMENT REPORTED A TORNADO NEAR
  MILLER. DOPPLER RADAR SHOWED THIS TORNADO MOVING SOUTHEAST AT 15
  MPH.

* THE TORNADO WILL BE NEAR...
  MILLER AROUND 455 PM CDT...
  SAINT LAWRENCE AROUND 500 PM CDT...

THIS WARNING INCLUDES HIGHWAY 14 BETWEEN MILE MARKERS 291 AND 304.

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 4475 9897 4455 9882 4445 9915 4461 9926
TIME...MOT...LOC 2130Z 309DEG 12KT 4457 9908

$$
DORN
2 follow-up statements
309 
WWUS53 KABR 142146
SVSABR

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

SDC059-142200-
/O.CON.KABR.TO.W.0007.000000T0000Z-110614T2200Z/
HAND SD-
446 PM CDT TUE JUN 14 2011

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

AT 440 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR MILLER...MOVING SOUTHEAST AT 10 MPH.

AT 437 PM CDT...LOCAL LAW ENFORCEMENT REPORTED THE TORNADO HAD 
LIFTED...BUT COULD STILL SEE A FUNNEL CLOUD. THIS IS A DANGEROUS 
STORM. MOVE INDOORS TO SAFE SHELTER IMMEDIATELY! 

THIS DANGEROUS STORM WILL BE NEAR...
  SAINT LAWRENCE AROUND 455 PM CDT...

THIS WARNING INCLUDES HIGHWAY 14 BETWEEN MILE MARKERS 291 AND 304.

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 4475 9897 4455 9882 4445 9915 4461 9926
TIME...MOT...LOC 2144Z 304DEG 10KT 4449 9903

$$
DORN
825 
WWUS53 KABR 142158
SVSABR

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

SDC059-142208-
/O.EXP.KABR.TO.W.0007.000000T0000Z-110614T2200Z/
HAND SD-
458 PM CDT TUE JUN 14 2011

...THE TORNADO WARNING FOR CENTRAL HAND COUNTY WILL EXPIRE AT 500 PM
CDT/400 PM MDT/...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT OF
THE WARNED AREA...HOWEVER HEAVY RAIN IS STILL POSSIBLE WITH THIS
THUNDERSTORM.

LAT...LON 4475 9897 4455 9882 4445 9915 4461 9926
TIME...MOT...LOC 2158Z 304DEG 10KT 4447 9898

$$
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, 4:41 PM CDTSevere Thunderstorm WarningABRHand51 min
Jun 14, 4:49 PM CDTTornado WarningABRHand26 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.