Alert archive / South Dakota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 69, NWS Aberdeen, SD

July 25, 2021Jones County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jul 25, 2021, 5:55 PM CDT for Jones County, South Dakota. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 25, 2021, 5:55 PM CDT (22:55 UTC)
Expired: Jul 25, 2021, 6:45 PM CDT
In force: 50 min
Issued by: NWS Aberdeen, SD
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

County Jones County, SD

The radar

The Rapid City radar (KUDX), 187 km from the middle of the area, began a volume at 22:54 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.

The nearest sounding before it

Rapid City, SD (KUNR), launched 12:00Z, 10.9 hours before the alert went out and 189 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: 175 J/kg
Mixed-layer CIN: -263 J/kg
Mixed-layer LCL: 2960 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -33 m²/s²
0-3 km storm-relative helicity: 87 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted.

087 
WUUS53 KABR 252255
SVRABR
SDC075-252345-
/O.NEW.KABR.SV.W.0069.210725T2255Z-210725T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Aberdeen SD
555 PM CDT Sun Jul 25 2021

The National Weather Service in Aberdeen has issued a

* Severe Thunderstorm Warning for...
  Southeastern Jones County in central South Dakota...

* Until 645 PM CDT.

* At 555 PM CDT, a severe thunderstorm was located over Westover, or
  9 miles south of Murdo, moving east at 20 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.

* This severe thunderstorm will remain over mainly rural areas of
  southeastern Jones County.

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 Aberdeen.

&&

LAT...LON 4373 10070 4372 10072 4382 10075 4383 10038
      4373 10037 4372 10042 4373 10044 4372 10047
      4373 10046 4373 10051 4374 10052 4374 10055
      4375 10055 4377 10059 4374 10062 4375 10065
      4371 10068
TIME...MOT...LOC 2255Z 270DEG 16KT 4375 10064 

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

Parkin

1 follow-up statement

639 
WWUS53 KABR 252344
SVSABR

Severe Weather Statement
National Weather Service Aberdeen SD
644 PM CDT Sun Jul 25 2021

SDC075-252354-
/O.EXP.KABR.SV.W.0069.000000T0000Z-210725T2345Z/
Jones SD-
644 PM CDT Sun Jul 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN JONES COUNTY WILL
EXPIRE AT 645 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.

LAT...LON 4373 10070 4372 10072 4382 10075 4383 10038
      4373 10037 4372 10042 4373 10044 4372 10047
      4373 10046 4373 10051 4374 10052 4374 10055
      4375 10055 4377 10059 4374 10062 4375 10065
      4371 10068
TIME...MOT...LOC 2344Z 270DEG 16KT 4375 10035 

$$

Parkin

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 25, 4:33 PM CDT	Special Weather Statement	ABR	Jones	57 min
Jul 25, 5:31 PM CDT	Special Weather Statement	ABR	Hughes	44 min
Jul 25, 5:37 PM CDT	Severe Thunderstorm Warning	ABR	Hughes, Stanley	14 min
Jul 25, 6:03 PM CDT	Severe Thunderstorm Warning	ABR	Hughes	29 min
Jul 25, 6:20 PM CDT	Severe Thunderstorm Warning	ABR	Hand, Hyde	40 min
Jul 25, 6:24 PM CDT	Severe Thunderstorm Warning	ABR	Faulk, Hand, Hyde	51 min
Jul 25, 6:41 PM CDT	Severe Thunderstorm Warning	ABR	Hughes, Stanley	25 min
Jul 25, 6:43 PM CDT	Severe Thunderstorm Warning	ABR	Lyman	22 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.