Alert archive / South Dakota / Tornado Warnings in 2014

Tornado Warning 40, NWS Sioux Falls, SD

June 18, 2014Beadle County, Sanborn County, South Dakota

NWS Sioux Falls, SD issued this tornado warning at Jun 18, 2014, 8:18 PM CDT for Beadle County, Sanborn County, South Dakota. It was in force for 42 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 18, 2014, 8:18 PM CDT (01:18 UTC)
Expired
Jun 18, 2014, 9:00 PM CDT
In force
42 min
Issued by
NWS Sioux Falls, SD
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.25 in

Counties Beadle County, SD, Sanborn County, SD

The radar

The Sioux Falls radar (KFSD), 130 km from the middle of the area, began a volume at 01:18 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 18, 8:28 PM CDTTORNADO3 Nw Forestburg, SDROPE TORNADO

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
Jun 18, 6:23 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 1.3 hours before the alert went out and 85 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 00:00Z on 2014-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1475 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 00:00Z on 2014-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 147 square meters per square second.193958Sfc1 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
1475 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
1398 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
147 m²/s²
0-3 km storm-relative helicity
228 m²/s²
Significant tornado parameter
0.7
Supercell composite
7.6

Open this sounding in Storm Lab

The text

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

610 
WFUS53 KFSD 190118
TORFSD
SDC005-111-190200-
/O.NEW.KFSD.TO.W.0040.140619T0118Z-140619T0200Z/

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

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTH CENTRAL BEADLE COUNTY IN EAST CENTRAL SOUTH DAKOTA...
  NORTHWESTERN SANBORN COUNTY IN EAST CENTRAL SOUTH DAKOTA...

* UNTIL 900 PM CDT

* AT 816 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR WOONSOCKET...AND MOVING NORTH AT 20 MPH.

  HAZARD...TORNADO AND HALF DOLLAR SIZE HAIL.

  SOURCE...RADAR INDICATED ROTATION.

  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 DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF NORTHWESTERN
  SANBORN AND SOUTH CENTRAL BEADLE 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 4424 9791 4399 9817 4406 9833 4409 9833
      4434 9819
TIME...MOT...LOC 0118Z 201DEG 19KT 4402 9820

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

HANKO
3 follow-up statements
896 
WWUS53 KFSD 190130
SVSFSD

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

SDC005-111-190200-
/O.CON.KFSD.TO.W.0040.000000T0000Z-140619T0200Z/
SANBORN SD-BEADLE SD-
830 PM CDT WED JUN 18 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL BEADLE AND
NORTH CENTRAL SANBORN COUNTIES UNTIL 900 PM CDT...

AT 828 PM CDT...A CONFIRMED TORNADO WAS LOCATED 5 MILES NORTHEAST OF
WOONSOCKET...AND MOVING NORTH AT 25 MPH.

HAZARD...DAMAGING TORNADO AND HALF DOLLAR SIZE HAIL.

SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO. AT 828 PM CDT A TORNADO 
WAS REPORTED 3 MILES NORTHWEST OF FORESTBURG.

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 TORNADIC STORM WILL AFFECT MAINLY RURAL AREAS OF NORTH CENTRAL
SANBORN AND SOUTH CENTRAL BEADLE COUNTIES.

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 4424 9791 4403 9813 4410 9825 4416 9829
      4434 9819
TIME...MOT...LOC 0130Z 196DEG 22KT 4410 9817

TORNADO...OBSERVED
HAIL...1.25IN

$$

HANKO
487 
WWUS53 KFSD 190145
SVSFSD

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

SDC005-111-190200-
/O.CON.KFSD.TO.W.0040.000000T0000Z-140619T0200Z/
SANBORN SD-BEADLE SD-
845 PM CDT WED JUN 18 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL BEADLE AND
NORTH CENTRAL SANBORN COUNTIES UNTIL 900 PM CDT...

AT 844 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 9 MILES NORTH OF FORESTBURG...AND MOVING NORTH AT 25 MPH.

HAZARD...TORNADO AND HALF DOLLAR SIZE HAIL.

SOURCE...RADAR INDICATED ROTATION.

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.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF EXTREME SOUTHERN BEADLE AND NORTHERN SANBORN
  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.

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

&&

LAT...LON 4424 9791 4411 9805 4417 9818 4423 9825
      4434 9819
TIME...MOT...LOC 0146Z 196DEG 22KT 4416 9811

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

HANKO
965 
WWUS53 KFSD 190151
SVSFSD

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

SDC005-111-190201-
/O.EXP.KFSD.TO.W.0040.000000T0000Z-140619T0200Z/
SANBORN SD-BEADLE SD-
851 PM CDT WED JUN 18 2014

...THE TORNADO WARNING FOR SOUTH CENTRAL BEADLE AND NORTH CENTRAL
SANBORN COUNTIES WILL EXPIRE AT 900 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO 
WATCH REMAINS IN EFFECT UNTIL 2 AM CDT.

LAT...LON 4424 9791 4411 9805 4417 9818 4423 9825
      4434 9819
TIME...MOT...LOC 0151Z 196DEG 22KT 4419 9810

$$

HANKO

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 18, 7:25 PM CDTTornado Warning Tornado observedFSDBeadle, Jerauld50 min
Jun 18, 7:42 PM CDTTornado WarningFSDAurora, Beadle, Jerauld, Sanborn48 min
Jun 18, 8:00 PM CDTTornado Warning Tornado observedFSDBeadle, Jerauld, Sanborn45 min
Jun 18, 8:38 PM CDTTornado WarningFSDBeadle37 min
Jun 18, 9:06 PM CDTTornado WarningFSDBeadle24 min
Jun 19, 1:20 AM CDTSevere Thunderstorm WarningFSDClay40 min
Jun 19, 3:28 AM CDTSevere Thunderstorm WarningFSDBeadle, Kingsbury, Miner, Sanborn47 min

Nearby

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