Alert archive / South Dakota / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 80, NWS Sioux Falls, SD

June 17, 2016Gregory County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 17, 2016, 10:33 PM CDT for Gregory 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 17, 2016, 10:33 PM CDT (03:33 UTC)
Expired: Jun 17, 2016, 11:15 PM CDT
In force: 42 min
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Gregory County, SD

The radar

The North Platte radar (KLNX), 164 km from the middle of the area, began a volume at 03:34 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 17, 10:58 PM CDT	HAIL 1	8 Sw Burke, SD	TIME ESTIMATED FROM RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 3.6 hours before the alert went out and 211 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: 1368 J/kg
Mixed-layer CIN: -140 J/kg
Mixed-layer LCL: 1582 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: -9 m²/s²
0-3 km storm-relative helicity: 213 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

As transmitted.

110 
WUUS53 KFSD 180333
SVRFSD
SDC053-180415-
/O.NEW.KFSD.SV.W.0080.160618T0333Z-160618T0415Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1033 PM CDT FRI JUN 17 2016

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN GREGORY COUNTY IN SOUTH CENTRAL SOUTH DAKOTA...

* UNTIL 1115 PM CDT

* AT 1033 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 14 MILES
  SOUTHWEST OF HERRICK...OR 20 MILES NORTHEAST OF SPRINGVIEW...MOVING
  NORTHEAST AT 25 MPH.

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

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* THIS SEVERE THUNDERSTORM WILL BE NEAR...
  BURKE AND HERRICK AROUND 1110 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 4317 9954 4327 9952 4318 9888 4300 9916
      4300 9953
TIME...MOT...LOC 0333Z 211DEG 21KT 4298 9941 

HAIL...1.00IN
WIND...60MPH
 
$$

DUX

2 follow-up statements

666 
WWUS53 KFSD 180402
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1102 PM CDT FRI JUN 17 2016

SDC053-180415-
/O.CON.KFSD.SV.W.0080.000000T0000Z-160618T0415Z/
GREGORY SD-
1102 PM CDT FRI JUN 17 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT
FOR SOUTHWESTERN GREGORY COUNTY...

AT 1102 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR BURKE...OR 31
MILES NORTHEAST OF SPRINGVIEW...MOVING NORTHEAST AT 25 MPH.

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

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

THIS SEVERE STORM WILL BE NEAR...
  BURKE AND HERRICK AROUND 1110 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
SIOUX FALLS.

TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 4317 9954 4327 9952 4318 9888 4300 9916
      4300 9953
TIME...MOT...LOC 0402Z 211DEG 21KT 4312 9929 

HAIL...1.00IN
WIND...60MPH
 
$$

DUX

166 
WWUS53 KFSD 180411
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1111 PM CDT FRI JUN 17 2016

SDC053-180421-
/O.EXP.KFSD.SV.W.0080.000000T0000Z-160618T0415Z/
GREGORY SD-
1111 PM CDT FRI JUN 17 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN GREGORY COUNTY
WILL EXPIRE AT 1115 PM CDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE...THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER GUSTY
WINDS UP TO 50 MPH AND HEAVY RAIN ARE STILL POSSIBLE WITH THIS
THUNDERSTORM.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
SIOUX FALLS.

LAT...LON 4317 9954 4327 9952 4318 9888 4300 9916
      4300 9953
TIME...MOT...LOC 0408Z 211DEG 21KT 4312 9929 

$$

DUX

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 7:01 PM CDT	Severe Thunderstorm Warning	FSD	Lake	44 min
Jun 17, 7:17 PM CDT	Flash Flood Warning	FSD	Lake	3 hr
Jun 17, 7:33 PM CDT	Severe Thunderstorm Warning	FSD	Lake, McCook	27 min
Jun 17, 7:38 PM CDT	Severe Thunderstorm Warning	FSD	Minnehaha, Moody	41 min
Jun 17, 7:39 PM CDT	Severe Thunderstorm Warning	FSD	Lake	36 min
Jun 17, 8:03 PM CDT	Severe Thunderstorm Warning	FSD	Lake, McCook, Miner	27 min
Jun 17, 8:17 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln, McCook, Minnehaha, Turner	28 min
Jun 17, 8:18 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln	42 min
Jun 17, 8:26 PM CDT	Flash Flood Warning	FSD	Lincoln, Minnehaha	3 hr
Jun 17, 8:44 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Lincoln, Turner, Union	46 min
Jun 17, 8:49 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Hutchinson	26 min
Jun 17, 8:52 PM CDT	Flash Flood Warning	FSD	Hutchinson, McCook	3 hr
Jun 17, 9:13 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Hutchinson, Turner, Yankton	47 min
Jun 17, 9:53 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Clay, Union, Yankton	52 min
Jun 17, 10:41 PM CDT	Severe Thunderstorm Warning	FSD	Union	49 min
Jun 18, 3:14 AM CDT	Heat Advisory	FSD	Aurora, Beadle, Bon Homme, Brookings, Brule, Charles Mix and 18 more	41 hr

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.