Alert archive / South Dakota / Tornado Warnings in 2012
Tornado Warning 24, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this tornado warning at Jun 13, 2012, 7:35 PM CDT for Brule County, Charles Mix County, South Dakota. It was in force for 40 min. 2 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
- Jun 13, 2012, 7:35 PM CDT (00:35 UTC)
- Expired
- Jun 13, 2012, 8:15 PM CDT
- In force
- 40 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
Counties Brule County, SD, Charles Mix County, SD
The radar
The Sioux Falls radar (KFSD), 176 km from the middle of the area, began a volume at 00:37 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 13, 7:50 PM CDT | HAIL 2.5 | 13 S Kimball, SD | HAIL LASTED LESS THAN A MINUTE. |
| Jun 13, 8:20 PM CDT | HAIL 3 | 10 S Kimball, 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 00:00Z, 0.6 hours before the alert went out and 155 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.
- Mixed-layer CAPE
- 1191 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 1769 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 157 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.0
The text
As transmitted, in the capitals the NWS used until 2016.
406
WFUS53 KFSD 140035
TORFSD
SDC015-023-140115-
/O.NEW.KFSD.TO.W.0024.120614T0035Z-120614T0115Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
735 PM CDT WED JUN 13 2012
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHEASTERN BRULE COUNTY IN SOUTH CENTRAL SOUTH DAKOTA...
NORTHWESTERN CHARLES MIX COUNTY IN SOUTH CENTRAL SOUTH DAKOTA...
* UNTIL 815 PM CDT
* AT 735 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS
DANGEROUS STORM WAS LOCATED 10 MILES SOUTHWEST OF GRASS RANCH
COLONY...OR 13 MILES SOUTHWEST OF KIMBALL...AND MOVING SOUTHEAST AT
15 MPH.
* THIS TORNADIC STORM WILL AFFECT MAINLY RURAL AREAS OF NORTHWESTERN
CHARLES MIX AND SOUTHEASTERN BRULE COUNTIES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS TORNADO WARNING REPLACES THE SEVERE THUNDERSTORM WARNING THAT
WAS IN EFFECT FOR THE SAME AREA. GO TO A BASEMENT OR SMALL INTERIOR
ROOM ON THE LOWEST FLOOR!
&&
LAT...LON 4371 9901 4351 9879 4350 9880 4350 9878
4348 9876 4342 9904 4360 9913
TIME...MOT...LOC 0035Z 314DEG 12KT 4357 9905
$$
CHAPMAN2 follow-up statements
335
WWUS53 KFSD 140048
SVSFSD
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
748 PM CDT WED JUN 13 2012
SDC015-023-140115-
/O.CON.KFSD.TO.W.0024.000000T0000Z-120614T0115Z/
CHARLES MIX SD-BRULE SD-
748 PM CDT WED JUN 13 2012
...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN BRULE AND
NORTHWESTERN CHARLES MIX COUNTIES UNTIL 815 PM CDT...
AT 740 PM CDT...WEATHER SPOTTERS REPORTED A FUNNEL CLOUD. THESE
FUNNEL CLOUDS WERE LOCATED 10 MILES SOUTHWEST OF GRASS RANCH
COLONY...OR 14 MILES SOUTH OF KIMBALL...MOVING SOUTHEAST AT 15 MPH.
LARGE HAIL UP TO GOLF BALL SIZE IS LIKELY NORTH AND EAST OF THIS
AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4358 9908 4371 9901 4351 9879 4350 9880
4350 9878 4348 9876 4342 9904
TIME...MOT...LOC 0047Z 314DEG 12KT 4354 9901
$$
CHAPMAN662
WWUS53 KFSD 140056
SVSFSD
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
756 PM CDT WED JUN 13 2012
SDC015-023-140115-
/O.CON.KFSD.TO.W.0024.000000T0000Z-120614T0115Z/
CHARLES MIX SD-BRULE SD-
756 PM CDT WED JUN 13 2012
...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN BRULE AND
NORTHWESTERN CHARLES MIX COUNTIES UNTIL 815 PM CDT...
AT 750 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD.
THIS DEVELOPING TORNADO WAS LOCATED 10 MILES SOUTHWEST OF GRASS
RANCH COLONY...OR 15 MILES SOUTH OF KIMBALL...MOVING SOUTHEAST AT 15
MPH. THIS DEVELOPING TORNADO WILL MOVE TOWARD THE LOCATION WHERE
HIGHWAY 45 CROSSES FROM CHARLES MIX INTO BRULE COUNTY...NORTH OF
PLATTE.
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 4367 9897 4351 9879 4350 9880 4350 9878
4348 9876 4343 9901 4358 9906
TIME...MOT...LOC 0054Z 314DEG 12KT 4352 9899
$$
CHAPMANThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 13, 7:13 PM CDT | Severe Thunderstorm Warning | FSD | Brule | 47 min |
| Jun 13, 7:23 PM CDT | Severe Thunderstorm Warning | FSD | Beadle | 37 min |
| Jun 13, 8:10 PM CDT | Tornado Warning | FSD | Brule, Charles Mix | 35 min |
| Jun 13, 8:16 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule, Charles Mix | 29 min |
| Jun 13, 8:45 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule, Charles Mix, Douglas | 45 min |
| Jun 13, 9:27 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Douglas | 48 min |
| Jun 13, 9:38 PM CDT | Severe Thunderstorm Warning | FSD | Sanborn | 22 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.