Alert archive / South Dakota / Tornado Warnings in 2014

Tornado Warning 42, NWS Sioux Falls, SD

June 18, 2014Beadle County, South Dakota

NWS Sioux Falls, SD issued this tornado warning at Jun 18, 2014, 9:06 PM CDT for Beadle County, South Dakota. It was in force for 24 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, 9:06 PM CDT (02:06 UTC)
Expired: Jun 18, 2014, 9:30 PM CDT
In force: 24 min
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Beadle County, SD

The radar

The Aberdeen radar (KABR), 100 km from the middle of the area, began a volume at 02:08 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, 9:14 PM CDT	FUNNEL CLOUD	10 Wnw Huron, 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 00:00Z, 2.1 hours before the alert went out and 41 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: 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.

245 
WFUS53 KFSD 190206
TORFSD
SDC005-190230-
/O.NEW.KFSD.TO.W.0042.140619T0206Z-140619T0230Z/

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

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

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

* UNTIL 930 PM CDT

* AT 904 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR HURON...AND MOVING NORTHEAST AT 20 MPH.

  HAZARD...TORNADO AND QUARTER SIZE HAIL.

  SOURCE...WEATHER SPOTTERS REPORTED FUNNEL CLOUD. AT 900 PM CDT A   
  FUNNEL CLOUD WAS REPORTED 6 MILES WEST NORTHWEST OF HURON.

  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 NORTH
  CENTRAL BEADLE COUNTY.

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 4463 9807 4463 9799 4463 9798 4437 9825
      4443 9843 4464 9834 4464 9807
TIME...MOT...LOC 0206Z 207DEG 18KT 4443 9827

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

HANKO

2 follow-up statements

840 
WWUS53 KFSD 190216
SVSFSD

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

SDC005-190230-
/O.CON.KFSD.TO.W.0042.000000T0000Z-140619T0230Z/
BEADLE SD-
916 PM CDT WED JUN 18 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTH CENTRAL BEADLE
COUNTY UNTIL 930 PM CDT...

AT 915 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 10 MILES NORTH OF HURON...AND MOVING NORTHEAST AT 20 MPH.

HAZARD...TORNADO AND QUARTER SIZE HAIL.

SOURCE...WEATHER SPOTTERS REPORTED FUNNEL CLOUD.

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 NORTH CENTRAL
BEADLE COUNTY.

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 4463 9807 4463 9798 4446 9825 4448 9837
      4464 9834 4464 9807
TIME...MOT...LOC 0216Z 207DEG 18KT 4450 9828

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

HANKO

430 
WWUS53 KFSD 190227
SVSFSD

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

SDC005-190236-
/O.EXP.KFSD.TO.W.0042.000000T0000Z-140619T0230Z/
BEADLE SD-
927 PM CDT WED JUN 18 2014

...THE TORNADO WARNING FOR NORTH CENTRAL BEADLE COUNTY WILL EXPIRE AT
930 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

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

LAT...LON 4463 9807 4463 9798 4446 9825 4448 9837
      4464 9834 4464 9807
TIME...MOT...LOC 0226Z 207DEG 18KT 4454 9825

$$

HANKO

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 7:25 PM CDT	Tornado Warning Tornado observed	FSD	Beadle, Jerauld	50 min
Jun 18, 7:42 PM CDT	Tornado Warning	FSD	Aurora, Beadle, Jerauld, Sanborn	48 min
Jun 18, 8:00 PM CDT	Tornado Warning Tornado observed	FSD	Beadle, Jerauld, Sanborn	45 min
Jun 18, 8:18 PM CDT	Tornado Warning	FSD	Beadle, Sanborn	42 min
Jun 18, 8:38 PM CDT	Tornado Warning	FSD	Beadle	37 min
Jun 19, 1:20 AM CDT	Severe Thunderstorm Warning	FSD	Clay	40 min
Jun 19, 3:28 AM CDT	Severe Thunderstorm Warning	FSD	Beadle, Kingsbury, Miner, Sanborn	47 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.