Alert archive / South Dakota / Tornado Warnings in 2019

Tornado Warning 7, NWS Sioux Falls, SD

June 30, 2019Charles Mix County, South Dakota

NWS Sioux Falls, SD issued this tornado warning at Jun 30, 2019, 4:28 PM CDT for Charles Mix County, South Dakota. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 30, 2019, 4:28 PM CDT (21:28 UTC)
Expired: Jun 30, 2019, 5:00 PM CDT
In force: 32 min
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Charles Mix County, SD

The radar

The Sioux Falls radar (KFSD), 181 km from the middle of the area, began a volume at 21:27 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.

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 9.5 hours before the alert went out and 172 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: 1889 J/kg
Mixed-layer CIN: -336 J/kg
Mixed-layer LCL: 1008 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: -169 m²/s²
0-3 km storm-relative helicity: -67 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -1.1

Open this sounding in Storm Lab

The text

As transmitted.

595 
WFUS53 KFSD 302128
TORFSD
SDC023-302200-
/O.NEW.KFSD.TO.W.0007.190630T2128Z-190630T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Sioux Falls SD
428 PM CDT Sun Jun 30 2019

The National Weather Service in Sioux Falls has issued a

* Tornado Warning for...
  Northwestern Charles Mix County in south central South Dakota...

* Until 500 PM CDT.
    
* At 428 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 9 miles west of Platte, or 23 miles south of Kimball,
  moving east at 10 mph.

  HAZARD...Tornado.

  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...
  Platte around 500 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.

&&

LAT...LON 4350 9882 4334 9880 4331 9906 4332 9907
      4345 9916
TIME...MOT...LOC 2128Z 265DEG 7KT 4341 9904 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Hanko

2 follow-up statements

421 
WWUS53 KFSD 302131
SVSFSD

Severe Weather Statement
National Weather Service Sioux Falls SD
431 PM CDT Sun Jun 30 2019

SDC023-302200-
/O.CON.KFSD.TO.W.0007.000000T0000Z-190630T2200Z/
Charles Mix SD-
431 PM CDT Sun Jun 30 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM CDT FOR
NORTHWESTERN CHARLES MIX COUNTY...
    
At 430 PM CDT, a confirmed tornado was located 9 miles west of
Platte, or 23 miles south of Kimball, moving east at 10 mph.

HAZARD...Damaging tornado.

SOURCE...Law enforcement 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 tornado will be near...
  Platte around 500 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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.

&&

LAT...LON 4350 9882 4334 9880 4331 9906 4332 9907
      4345 9916
TIME...MOT...LOC 2130Z 265DEG 7KT 4341 9903 

TORNADO...OBSERVED
HAIL...<.75IN

$$

Hanko

174 
WWUS53 KFSD 302153
SVSFSD

Severe Weather Statement
National Weather Service Sioux Falls SD
453 PM CDT Sun Jun 30 2019

SDC023-302202-
/O.EXP.KFSD.TO.W.0007.000000T0000Z-190630T2200Z/
Charles Mix SD-
453 PM CDT Sun Jun 30 2019

...THE TORNADO WARNING FOR NORTHWESTERN CHARLES MIX COUNTY WILL
EXPIRE AT 500 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.

LAT...LON 4350 9882 4334 9880 4331 9906 4332 9907
      4345 9916
TIME...MOT...LOC 2152Z 265DEG 7KT 4341 9897 

$$

Hanko

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 30, 4:23 PM CDT	Tornado Warning	FSD	Gregory	37 min
Jun 30, 4:25 PM CDT	Tornado Warning	FSD	Charles Mix, Douglas	35 min
Jun 30, 5:02 PM CDT	Tornado Warning Tornado observed	FSD	Gregory	28 min
Jun 30, 5:17 PM CDT	Severe Thunderstorm Warning	FSD	Brule, Charles Mix, Gregory	43 min
Jun 30, 5:27 PM CDT	Tornado Warning	FSD	Gregory	33 min
Jun 30, 5:58 PM CDT	Severe Thunderstorm Warning	FSD	Gregory	47 min
Jun 30, 6:10 PM CDT	Tornado Warning	FSD	Gregory	35 min

Nearby

Tornado Warnings in South Dakota, 2019 Every tornado warning in 2019 Tornadoes in 2019

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.