Alert archive / South Dakota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 45, NWS Aberdeen, SD

July 3, 2021Jones County, Stanley County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jul 3, 2021, 6:10 PM CDT for Jones County, Stanley County, South Dakota. It was in force for 50 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 3, 2021, 6:10 PM CDT (23:10 UTC)
Expired
Jul 3, 2021, 7:00 PM CDT
In force
50 min
Issued by
NWS Aberdeen, SD
Area
Storm-based polygon
Hail
1.75 in
Wind
60.0 mph

Counties Jones County, SD, Stanley County, SD

The radar

The Rapid City radar (KUDX), 146 km from the middle of the area, began a volume at 23:11 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
Jul 3, 6:30 PM CDTHAIL 13 Sw Capa, SDHAILED FOR HALF AN HOUR STRAIGHT, WITH UP TO QUARTER SIZED STONES TOWARDS THE END. STRONG WINDS AS WELL. RADAR ESTIMATED TIME.
Jul 3, 6:50 PM CDTHAIL 0.884 Nw Okaton, SDGUSTY WINDS ACCOMPANIED THE HAIL BUT NO DAMAGE NOTICEABLE.

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.

IssuedProductOfficeLasted
Jul 3, 4:33 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Rapid City, SD (KUNR), launched 12:00Z, 11.2 hours before the alert went out and 150 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, Rapid City, SD at 12:00Z on 2021-07-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 444 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Rapid City, SD at 12:00Z on 2021-07-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 square meters per square second.1939Sfc1 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
444 J/kg
Mixed-layer CIN
-308 J/kg
Mixed-layer LCL
2214 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
54 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

625 
WUUS53 KABR 032310
SVRABR
SDC075-117-040000-
/O.NEW.KABR.SV.W.0045.210703T2310Z-210704T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Aberdeen SD
610 PM CDT Sat Jul 3 2021

The National Weather Service in Aberdeen has issued a

* Severe Thunderstorm Warning for...
  Northwestern Jones County in central South Dakota...
  Southwestern Stanley County in central South Dakota...

* Until 700 PM CDT/600 PM MDT/.

* At 610 PM CDT/510 PM MDT/, a severe thunderstorm was located near
  Capa, or 17 miles northwest of Murdo, moving southeast at 15 mph.

  HAZARD...Golf ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* This severe thunderstorm will remain over mainly rural areas of
  northwestern Jones and southwestern Stanley Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4398 10107 4400 10105 4417 10105 4417 10115
      4423 10117 4421 10081 4398 10061 4389 10106
TIME...MOT...LOC 2310Z 334DEG 14KT 4409 10091 

HAIL...1.75IN
WIND...60MPH
 
$$

SD
3 follow-up statements
149 
WWUS53 KABR 032324
SVSABR

Severe Weather Statement
National Weather Service Aberdeen SD
624 PM CDT Sat Jul 3 2021

SDC117-032333-
/O.CAN.KABR.SV.W.0045.000000T0000Z-210704T0000Z/
Stanley SD-
624 PM CDT Sat Jul 3 2021

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

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
central South Dakota.

LAT...LON 4389 10106 4398 10107 4400 10105 4417 10105
      4417 10077 4398 10061
TIME...MOT...LOC 2323Z 350DEG 12KT 4404 10092 

$$

SDC075-040000-
/O.CON.KABR.SV.W.0045.000000T0000Z-210704T0000Z/
Jones SD-
624 PM CDT Sat Jul 3 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR NORTHWESTERN JONES COUNTY...

At 623 PM CDT, a severe thunderstorm was located near Capa, or 14
miles northwest of Murdo, moving south at 15 mph.

HAZARD...Golf ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Capa and Van Metre. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4389 10106 4398 10107 4400 10105 4417 10105
      4417 10077 4398 10061
TIME...MOT...LOC 2323Z 350DEG 12KT 4404 10092 

HAIL...1.75IN
WIND...60MPH
 
$$

SD
944 
WWUS53 KABR 032338
SVSABR

Severe Weather Statement
National Weather Service Aberdeen SD
638 PM CDT Sat Jul 3 2021

SDC075-040000-
/O.CON.KABR.SV.W.0045.000000T0000Z-210704T0000Z/
Jones SD-
638 PM CDT Sat Jul 3 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR NORTHWESTERN JONES COUNTY...

At 637 PM CDT, a severe thunderstorm was located 7 miles south of
Capa, or 15 miles northwest of Murdo, moving south at 15 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Capa.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4389 10106 4398 10107 4400 10105 4412 10105
      4411 10078 4397 10064
TIME...MOT...LOC 2337Z 008DEG 12KT 4400 10098 

HAIL...1.50IN
WIND...60MPH
 
$$

SD
060 
WWUS53 KABR 032349
SVSABR

Severe Weather Statement
National Weather Service Aberdeen SD
649 PM CDT Sat Jul 3 2021

SDC075-040000-
/O.CON.KABR.SV.W.0045.000000T0000Z-210704T0000Z/
Jones SD-
649 PM CDT Sat Jul 3 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR NORTHWESTERN JONES COUNTY...

At 649 PM CDT, a severe thunderstorm was located near Okaton, or 12
miles west of Murdo, moving southeast at 15 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.

Locations impacted include...
Capa.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4389 10106 4398 10107 4400 10105 4412 10105
      4408 10075 4397 10064
TIME...MOT...LOC 2349Z 334DEG 14KT 4396 10095 

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

SD

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 3, 2:57 AM CDTRed Flag WarningABRCampbell, Corson, Dewey, Hughes, Jones, Lyman and 4 more15 hr
Jul 3, 5:05 PM CDTSpecial Weather StatementABRJones25 min
Jul 3, 5:36 PM CDTSevere Thunderstorm WarningABRJones, Stanley39 min
Jul 3, 5:42 PM CDTSpecial Weather StatementABRDewey33 min
Jul 3, 6:29 PM CDTSpecial Weather StatementABRWalworth31 min
Jul 3, 6:35 PM CDTSevere Thunderstorm WarningABRCorson, Dewey, Potter, Walworth40 min
Jul 3, 6:57 PM CDTSevere Thunderstorm WarningABRJones33 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.