Alert archive / South Dakota / Tornado Warnings in 2014

Tornado Warning 36, NWS Sioux Falls, SD

June 18, 2014Aurora County, Brule County, Jerauld County, South Dakota

NWS Sioux Falls, SD issued this tornado warning at Jun 18, 2014, 6:59 PM CDT for Aurora County, Brule County, Jerauld County, South Dakota. It was in force for 31 min. 5 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 18, 2014, 6:59 PM CDT (23:59 UTC)
Expired: Jun 18, 2014, 7:30 PM CDT
In force: 31 min
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Tornado: Observed
Hail: 1.0 in

Counties Aurora County, SD, Brule County, SD, Jerauld County, SD

The radar

The Aberdeen radar (KABR), 158 km from the middle of the area, began a volume at 00:01 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 18, 7:02 PM CDT	TORNADO	10 E Gann Valley, SD
Jun 18, 7:10 PM CDT	TORNADO	14 Ssw Wessington Sprin, SD	TRAINED SPOTTER REPORTS A TORNADO ON THE GROUND. 6 MILES TO THE SSW OF HIS LOCATION. THEY ARE 8 W OF WESSINGTON SPRINGS.
Jun 18, 7:15 PM CDT	TORNADO	10 Ssw Wessington Sprin, SD
Jun 18, 7:15 PM CDT	TORNADO	12 Ssw Wessington Sprin, SD	LARGE RAIN-WRAPPED TORNADO TO SSW OF WESSINGTON SPRINGS. ON GROUND FOR WELL OVER 10 MIN.
Jun 18, 7:35 PM CDT	FUNNEL CLOUD	Wessington Springs, SD

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.

Issued	Product	Office	Lasted
Jun 18, 6:23 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 12.0 hours before the alert went out and 98 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 826 J/kg
Mixed-layer CIN: -149 J/kg
Mixed-layer LCL: 731 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 86 m²/s²
0-3 km storm-relative helicity: 128 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.9

Open this sounding in Storm Lab

The text

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

853 
WFUS53 KFSD 182359
TORFSD
SDC003-015-073-190030-
/O.NEW.KFSD.TO.W.0036.140618T2359Z-140619T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
659 PM CDT WED JUN 18 2014

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN AURORA COUNTY IN SOUTH CENTRAL SOUTH DAKOTA...
  NORTHEASTERN BRULE COUNTY IN SOUTH CENTRAL SOUTH DAKOTA...
  WESTERN JERAULD COUNTY IN CENTRAL SOUTH DAKOTA...

* UNTIL 730 PM CDT

* AT 656 PM CDT...A CONFIRMED TORNADO WAS LOCATED 7 MILES EAST OF
  GANN VALLEY...AND MOVING EAST AT 20 MPH.

  HAZARD...DAMAGING TORNADO AND QUARTER SIZE HAIL.

  SOURCE...RADAR CONFIRMED TORNADO.

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
           TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
           LIKELY.

THIS STORM HAS INDICATED MULTIPLE AREA OF ROTATION AS WELL AS 
MULTIPLE REPORTS OF TORNADOES.

* THE TORNADO WILL BE NEAR...
  WESSINGTON SPRINGS AROUND 730 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.

THIS STORM HAS A HISTORY OF PRODUCING TORNADOES. TAKE COVER IN A
BASEMENT OR STORM SHELTER NOW!

&&

LAT...LON 4413 9850 4388 9864 4390 9893 4420 9892
TIME...MOT...LOC 2358Z 268DEG 18KT 4400 9883

TORNADO...OBSERVED
HAIL...1.00IN

$$

WEISSER

2 follow-up statements

163 
WWUS53 KFSD 190004
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
704 PM CDT WED JUN 18 2014

SDC003-015-073-190030-
/O.CON.KFSD.TO.W.0036.000000T0000Z-140619T0030Z/
JERAULD SD-BRULE SD-AURORA SD-
704 PM CDT WED JUN 18 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN AURORA...
NORTHEASTERN BRULE AND WESTERN JERAULD COUNTIES UNTIL 730 PM CDT...

AT 702 PM CDT...A CONFIRMED TORNADO WAS LOCATED 10 MILES EAST OF GANN
VALLEY...AND MOVING EAST AT 20 MPH.

HAZARD...DAMAGING TORNADO AND QUARTER SIZE HAIL.

SOURCE...RADAR CONFIRMED TORNADO.

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
         TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
         LIKELY.

AT 700 PM CDT...A SMALL CONE TORNADO WAS REPORTED ON THE GROUND FOR 
2 TO 3 MINUTES 7 MILES EAST NORTHEAST OF GANN VALLEY.

THE TORNADO WILL BE NEAR...
  WESSINGTON SPRINGS AROUND 730 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.

THIS STORM HAS A HISTORY OF PRODUCING TORNADOES. TAKE COVER IN A
BASEMENT OR STORM SHELTER NOW!

&&

LAT...LON 4413 9850 4388 9864 4390 9893 4420 9892
TIME...MOT...LOC 0004Z 268DEG 18KT 4400 9879

TORNADO...OBSERVED
HAIL...1.00IN

$$

WEISSER

371 
WWUS53 KFSD 190018
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
718 PM CDT WED JUN 18 2014

SDC003-015-073-190030-
/O.CON.KFSD.TO.W.0036.000000T0000Z-140619T0030Z/
JERAULD SD-BRULE SD-AURORA SD-
718 PM CDT WED JUN 18 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN AURORA...
NORTHEASTERN BRULE AND WESTERN JERAULD COUNTIES UNTIL 730 PM CDT...

AT 716 PM CDT...A CONFIRMED TORNADO WAS LOCATED 10 MILES SOUTHWEST OF
WESSINGTON SPRINGS...AND MOVING EAST AT 15 MPH.

HAZARD...DAMAGING TORNADO AND QUARTER SIZE HAIL.

SOURCE...RADAR CONFIRMED TORNADO.

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
         TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
         LIKELY.

THE TORNADO WILL AFFECT MAINLY RURAL AREAS OF NORTHEASTERN BRULE...
NORTHWESTERN AURORA AND WESTERN JERAULD COUNTIES.

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 4413 9850 4388 9864 4390 9893 4420 9892
TIME...MOT...LOC 0019Z 260DEG 15KT 4398 9869

TORNADO...OBSERVED
HAIL...1.00IN

$$

HANKO

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 9:41 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln, Union	49 min
Jun 17, 9:44 PM CDT	Severe Thunderstorm Warning	FSD	McCook, Minnehaha	46 min
Jun 17, 9:53 PM CDT	Severe Thunderstorm Warning	FSD	McCook	52 min
Jun 17, 10:28 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln	47 min
Jun 17, 10:30 PM CDT	Severe Thunderstorm Warning	FSD	McCook, Minnehaha	45 min
Jun 17, 10:33 PM CDT	Tornado Warning	FSD	Minnehaha	27 min
Jun 17, 10:41 PM CDT	Severe Thunderstorm Warning	FSD	McCook, Miner	49 min
Jun 17, 10:47 PM CDT	Severe Thunderstorm Warning	FSD	Hanson, McCook	43 min
Jun 17, 10:58 PM CDT	Tornado Warning	FSD	Minnehaha	32 min
Jun 17, 11:07 PM CDT	Severe Thunderstorm Warning	FSD	McCook, Minnehaha	38 min
Jun 17, 11:20 PM CDT	River Flood Warning	FSD	Lincoln, Minnehaha	63 hr
Jun 17, 11:22 PM CDT	Severe Thunderstorm Warning	FSD	Hanson, McCook	53 min
Jun 17, 11:30 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Hanson, Miner, Sanborn	45 min
Jun 18, 12:03 AM CDT	Severe Thunderstorm Warning	FSD	Hanson, McCook, Turner	42 min
Jun 18, 12:39 AM CDT	Severe Thunderstorm Warning	FSD	Hanson, McCook	51 min
Jun 18, 1:11 AM CDT	Severe Thunderstorm Warning	FSD	McCook	49 min
Jun 18, 6:44 PM CDT	Tornado Warning	FSD	Jerauld	46 min

Nearby

Tornado Warnings in South Dakota, 2014 Every tornado warning in 2014 Tornadoes in 2014

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.