Alert archive / South Dakota / Tornado Warnings in 2017

Tornado Warning 15, NWS Sioux Falls, SD

June 13, 2017Beadle County, Jerauld County, Sanborn County, South Dakota

NWS Sioux Falls, SD issued this tornado warning at Jun 13, 2017, 5:58 PM CDT for Beadle County, Jerauld County, Sanborn County, South Dakota. It was in force for 32 min. 4 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, 2017, 5:58 PM CDT (22:58 UTC)
Expired: Jun 13, 2017, 6:30 PM CDT
In force: 32 min
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.5 in

Counties Beadle County, SD, Jerauld County, SD, Sanborn County, SD

The radar

The Sioux Falls radar (KFSD), 132 km from the middle of the area, began a volume at 22:57 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, 6:18 PM CDT	TSTM WND DMG	7 Nne Huron, SD	BLEW OFF PREVIOUSLY DAMAGED BARN ROOF. TIME ESTIMATED FROM RADAR.
Jun 13, 6:20 PM CDT	TSTM WND DMG	4 Sw Cavour, SD	FLAG POLE DOWN AND SHINGLES BLOWN OFF BARN ROOF.
Jun 13, 6:20 PM CDT	TSTM WND DMG	6 S Cavour, SD	POWER LINES DOWNED.
Jun 13, 6:20 PM CDT	TSTM WND DMG	Cavour, SD	MULTIPLE TREES DOWNED WITHIN TOWN.

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 13, 3:13 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 11.0 hours before the alert went out and 73 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1118 m above ground
0-6 km bulk shear: 74 kt
0-1 km storm-relative helicity: -220 m²/s²
0-3 km storm-relative helicity: 188 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

227 
WFUS53 KFSD 132258
TORFSD
SDC005-073-111-132330-
/O.NEW.KFSD.TO.W.0015.170613T2258Z-170613T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Sioux Falls SD
558 PM CDT TUE JUN 13 2017

The National Weather Service in Sioux Falls has issued a

* Tornado Warning for...
  Northwestern Sanborn County in east central South Dakota...
  Southeastern Beadle County in east central South Dakota...
  East central Jerauld County in central South Dakota...

* Until 630 PM CDT
    
* At 557 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Alpena, or 13 miles south of Huron, moving
  northeast at 45 mph.

  HAZARD...Tornado and ping pong ball 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 be near...
  Huron and Cavour around 620 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Sioux Falls.

&&

LAT...LON 4435 9785 4431 9785 4407 9822 4412 9837
      4452 9820
TIME...MOT...LOC 2257Z 209DEG 38KT 4416 9825 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

Dux

2 follow-up statements

236 
WWUS53 KFSD 132309
SVSFSD

Severe Weather Statement
National Weather Service Sioux Falls SD
609 PM CDT TUE JUN 13 2017

SDC073-111-132319-
/O.CAN.KFSD.TO.W.0015.000000T0000Z-170613T2330Z/
Sanborn SD-Jerauld SD-
609 PM CDT TUE JUN 13 2017

...THE TORNADO WARNING FOR NORTHWESTERN SANBORN AND EAST CENTRAL
JERAULD COUNTIES IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area.  Therefore, the warning has been cancelled.

A tornado watch remains in effect until 1000 PM CDT for east central
South Dakota.

LAT...LON 4438 9792 4431 9800 4420 9813 4426 9829
      4452 9820
TIME...MOT...LOC 2309Z 205DEG 34KT 4429 9817 

$$

SDC005-132330-
/O.CON.KFSD.TO.W.0015.000000T0000Z-170613T2330Z/
Beadle SD-
609 PM CDT TUE JUN 13 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR
SOUTHEASTERN BEADLE COUNTY...
    
At 609 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Huron, moving northeast at 40 mph.

HAZARD...Tornado and ping pong ball 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 be near...
  Cavour around 620 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

If a tornado or other severe weather is spotted, report it to the
National Weather Service or your local nearest law enforcement agency
who will send your report. This act may save lives of others in the
path of dangerous weather.

&&

LAT...LON 4438 9792 4431 9800 4420 9813 4426 9829
      4452 9820
TIME...MOT...LOC 2309Z 205DEG 34KT 4429 9817 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

Dux

884 
WWUS53 KFSD 132324
SVSFSD

Severe Weather Statement
National Weather Service Sioux Falls SD
624 PM CDT TUE JUN 13 2017

SDC005-132334-
/O.EXP.KFSD.TO.W.0015.000000T0000Z-170613T2330Z/
Beadle SD-
624 PM CDT TUE JUN 13 2017

...THE TORNADO WARNING FOR SOUTHEASTERN BEADLE COUNTY WILL EXPIRE AT
630 PM CDT...
    
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and a
Severe Thunderstorm Warning remains in effect for the area.

A tornado watch remains in effect until 1000 PM CDT for east central
South Dakota.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Sioux Falls.

LAT...LON 4438 9792 4431 9800 4420 9813 4426 9829
      4452 9820
TIME...MOT...LOC 2324Z 209DEG 38KT 4443 9807 

$$

Dux

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 13, 3:26 PM CDT	Severe Thunderstorm Warning	FSD	Gregory	34 min
Jun 13, 3:46 PM CDT	Tornado Warning Tornado observed	FSD	Charles Mix, Gregory	29 min
Jun 13, 3:56 PM CDT	Severe Thunderstorm Warning	FSD	Brule, Charles Mix, Gregory	34 min
Jun 13, 4:19 PM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Gregory	41 min
Jun 13, 4:25 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule, Charles Mix	35 min
Jun 13, 4:27 PM CDT	Severe Thunderstorm Warning	FSD	Brule	33 min
Jun 13, 4:54 PM CDT	Tornado Warning	FSD	Charles Mix, Gregory	36 min
Jun 13, 4:54 PM CDT	Tornado Warning Tornado observed	FSD	Aurora, Brule	36 min
Jun 13, 5:13 PM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Gregory	32 min
Jun 13, 5:16 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Beadle, Brule, Jerauld, Sanborn	44 min
Jun 13, 5:20 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule, Charles Mix, Douglas	25 min
Jun 13, 5:35 PM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Gregory	25 min
Jun 13, 5:39 PM CDT	Tornado Warning	FSD	Aurora, Davison, Douglas	36 min
Jun 13, 5:40 PM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Douglas, Gregory	35 min
Jun 13, 5:45 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Davison, Douglas	30 min
Jun 13, 5:51 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Charles Mix, Davison, Douglas	24 min
Jun 13, 6:05 PM CDT	Tornado Warning	FSD	Charles Mix, Douglas, Gregory	25 min
Jun 13, 6:08 PM CDT	Tornado Warning	FSD	Aurora, Davison, Sanborn	37 min
Jun 13, 6:18 PM CDT	Severe Thunderstorm Warning	FSD	Beadle, Kingsbury, Sanborn	42 min
Jun 13, 6:20 PM CDT	Tornado Warning	FSD	Charles Mix, Douglas, Gregory	25 min
Jun 13, 6:25 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Hanson, Miner, Sanborn	50 min
Jun 13, 6:28 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Douglas, Hanson, Hutchinson	32 min
Jun 13, 6:31 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Charles Mix, Douglas, Hutchinson	44 min
Jun 13, 6:49 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Charles Mix, Davison, Douglas, Hanson, Hutchinson	26 min
Jun 13, 6:56 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Kingsbury, Lake, Miner	34 min
Jun 13, 6:59 PM CDT	Severe Thunderstorm Warning	FSD	Hanson, Hutchinson, Lake, McCook, Miner, Sanborn and 1 more	31 min

Nearby

Tornado Warnings in South Dakota, 2017 Every tornado warning in 2017 Tornadoes in 2017

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.