Alert archive / South Dakota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 38, NWS Sioux Falls, SD

July 5, 2021Hutchinson County, Turner County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jul 5, 2021, 5:00 PM CDT for Hutchinson County, Turner County, South Dakota. It was in force for 29 min. 2 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: Jul 5, 2021, 5:00 PM CDT (22:00 UTC)
Expired: Jul 5, 2021, 5:29 PM CDT
In force: 29 min
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Hutchinson County, SD, Turner County, SD

The radar

The Sioux Falls radar (KFSD), 71 km from the middle of the area, began a volume at 22:00 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 5, 5:00 PM CDT	TSTM WND DMG	2 N Menno, SD	IRRIGATION PIVOT FLIPPED OVER DUE TO THUNDERSTORM WINDS.
Jul 5, 5:08 PM CDT	HAIL 1	6 N Menno, SD	SOME QUARTER SIZED HAIL, BUT MOSTLY DIME SIZED. VERY HEAVY RAIN ESTIMATED AT 2 INCHES SO FAR. WIND GUSTS JUST BEFORE STORM WERE ESTIMATED 60+, BUT NEARLY CALM AT MOMENT.

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 12:00Z, 10.0 hours before the alert went out and 187 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: 1844 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: -42 m²/s²
0-3 km storm-relative helicity: 14 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

902 
WUUS53 KFSD 052200
SVRFSD
SDC067-125-052245-
/O.NEW.KFSD.SV.W.0038.210705T2200Z-210705T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Sioux Falls SD
500 PM CDT Mon Jul 5 2021

The National Weather Service in Sioux Falls has issued a

* Severe Thunderstorm Warning for...
  West central Turner County in southeastern South Dakota...
  Northeastern Hutchinson County in southeastern South Dakota...

* Until 545 PM CDT.

* At 500 PM CDT, a severe thunderstorm was located near Freeman, or
  21 miles east of Parkston, moving east at 5 mph.

  HAZARD...60 mph wind gusts and half dollar 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...
  Freeman around 545 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4327 9760 4340 9766 4349 9747 4326 9736
TIME...MOT...LOC 2200Z 251DEG 4KT 4334 9757 

HAIL...1.25IN
WIND...60MPH
 
$$

JM

1 follow-up statement

031 
WWUS53 KFSD 052229
SVSFSD

Severe Weather Statement
National Weather Service Sioux Falls SD
529 PM CDT Mon Jul 5 2021

SDC067-125-052239-
/O.CAN.KFSD.SV.W.0038.000000T0000Z-210705T2245Z/
Turner SD-Hutchinson SD-
529 PM CDT Mon Jul 5 2021

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL TURNER AND
NORTHEASTERN HUTCHINSON COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.

LAT...LON 4327 9760 4340 9766 4349 9747 4326 9736
TIME...MOT...LOC 2228Z 251DEG 4KT 4335 9753 

$$

JM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 5, 3:24 AM CDT	Heat Advisory	FSD	Aurora, Bon Homme, Brule, Charles Mix, Clay, Davison and 10 more	17 hr
Jul 5, 3:17 PM CDT	Severe Thunderstorm Warning	FSD	Brule	30 min
Jul 5, 6:15 PM CDT	Severe Thunderstorm Warning	FSD	McCook, Minnehaha	45 min
Jul 5, 6:37 PM CDT	Severe Thunderstorm Warning	FSD	Lake, Lincoln, Minnehaha, Turner	38 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2021 Every severe thunderstorm warning in 2021

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.