Alert archive / South Dakota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 3, NWS Sioux Falls, SD

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

NWS Sioux Falls, SD issued this severe thunderstorm warning at Apr 5, 2021, 7:49 PM CDT for Hutchinson County, Turner County, South Dakota. It was in force for 26 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
Apr 5, 2021, 7:49 PM CDT (00:49 UTC)
Expired
Apr 5, 2021, 8:15 PM CDT
In force
26 min
Issued by
NWS Sioux Falls, SD
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Hutchinson County, SD, Turner County, SD

The radar

The Sioux Falls radar (KFSD), 54 km from the middle of the area, began a volume at 00:52 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

TimeReportWhereRemark
Apr 5, 7:50 PM CDTHAIL 14 E Freeman, SD

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, 0.8 hours before the alert went out and 193 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-pSkew-T log-p diagram, Aberdeen, SD at 00:00Z on 2021-04-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 00:00Z on 2021-04-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -70 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
3053 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
-70 m²/s²
0-3 km storm-relative helicity
246 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

148 
WUUS53 KFSD 060049
SVRFSD
SDC067-125-060115-
/O.NEW.KFSD.SV.W.0003.210406T0049Z-210406T0115Z/

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

The National Weather Service in Sioux Falls has issued a

* Severe Thunderstorm Warning for...
  Northwestern Turner County in southeastern South Dakota...
  East central Hutchinson County in southeastern South Dakota...

* Until 815 PM CDT.

* At 749 PM CDT, a severe thunderstorm was located near Freeman, or
  11 miles west of Parker, moving east at 30 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...
  Marion around 800 PM CDT.
  Monroe around 810 PM CDT.
  Parker around 815 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4325 9745 4344 9745 4350 9713 4330 9705
TIME...MOT...LOC 0049Z 256DEG 25KT 4336 9736 

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

SG
2 follow-up statements
107 
WWUS53 KFSD 060101
SVSFSD

Severe Weather Statement
National Weather Service Sioux Falls SD
801 PM CDT Mon Apr 5 2021

SDC067-060110-
/O.CAN.KFSD.SV.W.0003.000000T0000Z-210406T0115Z/
Hutchinson SD-
801 PM CDT Mon Apr 5 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL HUTCHINSON COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4326 9738 4345 9739 4350 9713 4330 9705
TIME...MOT...LOC 0100Z 258DEG 20KT 4336 9731 

$$

SDC125-060115-
/O.CON.KFSD.SV.W.0003.000000T0000Z-210406T0115Z/
Turner SD-
801 PM CDT Mon Apr 5 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR NORTHWESTERN TURNER COUNTY...

At 800 PM CDT, a severe thunderstorm was located near Marion, or 9
miles west of Parker, moving east at 25 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Public. At 750 PM, quarter sized hail was reported 4 miles 
         east of Freeman.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

This severe storm will be near...
  Marion around 810 PM CDT.
  Monroe around 820 PM CDT.
  Parker around 825 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4326 9738 4345 9739 4350 9713 4330 9705
TIME...MOT...LOC 0100Z 258DEG 20KT 4336 9731 

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

SG
092 
WWUS53 KFSD 060114
SVSFSD

Severe Weather Statement
National Weather Service Sioux Falls SD
814 PM CDT Mon Apr 5 2021

SDC125-060124-
/O.EXP.KFSD.SV.W.0003.000000T0000Z-210406T0115Z/
Turner SD-
814 PM CDT Mon Apr 5 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN TURNER COUNTY
WILL EXPIRE AT 815 PM CDT...
                
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 will be allowed to expire.  However gusty
winds up to 50 mph are still possible with this thunderstorm.

LAT...LON 4326 9738 4345 9739 4350 9713 4330 9705
TIME...MOT...LOC 0114Z 256DEG 25KT 4338 9720 

$$

SG

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 5, 7:03 PM CDTSevere Thunderstorm WarningFSDMcCook, Minnehaha27 min
Apr 5, 7:39 PM CDTSevere Thunderstorm WarningFSDMoody36 min
Apr 5, 8:44 PM CDTSevere Thunderstorm WarningFSDMinnehaha31 min
Apr 5, 9:04 PM CDTSevere Thunderstorm WarningFSDLincoln, Minnehaha, Turner26 min
Apr 5, 9:27 PM CDTSevere Thunderstorm WarningFSDLincoln, Minnehaha33 min
Apr 5, 9:48 PM CDTSevere Thunderstorm WarningFSDMinnehaha27 min
Apr 6, 9:39 AM CDTSevere Thunderstorm WarningFSDCharles Mix, Gregory10 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2021Every 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.