Alert archive / South Dakota / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 96, NWS Sioux Falls, SD

July 6, 2016Charles Mix County, Gregory County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jul 6, 2016, 8:45 PM CDT for Charles Mix County, Gregory County, South Dakota. It was in force for 30 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: Jul 6, 2016, 8:45 PM CDT (01:45 UTC)
Expired: Jul 6, 2016, 9:15 PM CDT
In force: 30 min
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Charles Mix County, SD, Gregory County, SD

The radar

The Sioux Falls radar (KFSD), 150 km from the middle of the area, began a volume at 01:44 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
Jul 6, 9:10 PM CDT	TSTM WND GST 60	6 Sw Dante, 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
Jul 6, 7:38 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 1.8 hours before the alert went out and 214 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: 2121 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 269 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

565 
WUUS53 KFSD 070145
SVRFSD
SDC023-053-070215-
/O.NEW.KFSD.SV.W.0096.160707T0145Z-160707T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
845 PM CDT WED JUL 6 2016

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN CHARLES MIX COUNTY IN SOUTH CENTRAL SOUTH DAKOTA...
  SOUTHEASTERN GREGORY COUNTY IN SOUTH CENTRAL SOUTH DAKOTA...

* UNTIL 915 PM CDT

* AT 845 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER GROSS...OR 7
  MILES NORTHEAST OF SPENCER...MOVING EAST AT 50 MPH.

  HAZARD...60 MPH WIND GUSTS AND NICKEL SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* THIS SEVERE THUNDERSTORM WILL BE NEAR...
  PICKSTOWN AROUND 850 PM CDT. 
  MARTY AROUND 900 PM CDT. 
  WAGNER AROUND 905 PM CDT. 
  DANTE AROUND 910 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4319 9809 4287 9813 4284 9816 4288 9826
      4289 9833 4293 9842 4293 9844 4300 9850
      4300 9885 4302 9886
TIME...MOT...LOC 0145Z 249DEG 41KT 4294 9857 

HAIL...0.88IN
WIND...60MPH
 
$$

SCHUMACHER

1 follow-up statement

831 
WWUS53 KFSD 070212
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
912 PM CDT WED JUL 6 2016

SDC023-053-070220-
/O.EXP.KFSD.SV.W.0096.000000T0000Z-160707T0215Z/
CHARLES MIX SD-GREGORY SD-
912 PM CDT WED JUL 6 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CHARLES MIX AND
SOUTHEASTERN GREGORY COUNTIES WILL EXPIRE AT 915 PM CDT...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE...THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER GUSTY
WINDS ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM CDT FOR
SOUTH CENTRAL AND SOUTHEASTERN SOUTH DAKOTA.

REMEMBER...A SEVERE THUNDERSTORM WARNING STILL REMAINS IN EFFECT FOR
SOUTHEASTERN CHARLES MIX COUNTY UNTIL 945 PM.

LAT...LON 4319 9809 4287 9813 4284 9816 4288 9826
      4289 9833 4293 9842 4293 9844 4300 9850
      4300 9885 4302 9886
TIME...MOT...LOC 0209Z 249DEG 41KT 4294 9857 

$$

SCHUMACHER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 6, 8:56 PM CDT	Severe Thunderstorm Warning	FSD	Brule	34 min
Jul 6, 9:06 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule, Jerauld	24 min
Jul 6, 9:09 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Charles Mix, Hutchinson	36 min
Jul 6, 9:38 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Hutchinson, Turner, Yankton	37 min
Jul 6, 10:05 PM CDT	Severe Thunderstorm Warning	FSD	Beadle, Kingsbury, Lake, Miner, Sanborn	40 min
Jul 6, 10:10 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Lincoln, Turner, Union, Yankton	50 min
Jul 6, 10:21 PM CDT	Severe Thunderstorm Warning	FSD	Hanson, McCook	39 min
Jul 6, 10:39 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Kingsbury, Lake, Moody	36 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2016 Every severe thunderstorm warning in 2016

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.