Alert archive / South Dakota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 124, NWS Aberdeen, SD

August 26, 2021Faulk County, Spink County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Aug 26, 2021, 8:11 AM CDT for Faulk County, Spink County, South Dakota. It was in force for 49 min. 3 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
Aug 26, 2021, 8:11 AM CDT (13:11 UTC)
Expired
Aug 26, 2021, 9:00 AM CDT
In force
49 min
Issued by
NWS Aberdeen, SD
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Faulk County, SD, Spink County, SD

The radar

The Aberdeen radar (KABR), 54 km from the middle of the area, began a volume at 13:12 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
Aug 26, 8:16 AM CDTTSTM WND GST 571 Wnw Mellette, SDMESONET STATION 175 MELLETTE (SDDOT).
Aug 26, 8:26 AM CDTTSTM WND GST 581 Wnw Mellette, SDMESONET STATION 175 MELLETTE (SDDOT).
Aug 26, 8:40 AM CDTTSTM WND DMG1 Ssw Redfield, SDSEVERAL TREE BRANCHES DOWN NEAR THE REDFIELD AIRPORT. TIME ESTIMATED VIA 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 12:00Z, 1.2 hours before the alert went out and 11 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 12:00Z on 2021-08-26Temperature 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 12:00Z on 2021-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 365 square meters per square second.1939587897Sfc1 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
1092 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
365 m²/s²
0-3 km storm-relative helicity
490 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.4

Open this sounding in Storm Lab

The text

As transmitted.

561 
WUUS53 KABR 261311
SVRABR
SDC049-115-261400-
/O.NEW.KABR.SV.W.0124.210826T1311Z-210826T1400Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Aberdeen SD
811 AM CDT Thu Aug 26 2021

The National Weather Service in Aberdeen has issued a

* Severe Thunderstorm Warning for...
  Southeastern Faulk County in north central South Dakota...
  Central Spink County in northeastern South Dakota...

* Until 900 AM CDT.

* At 810 AM CDT, a severe thunderstorm was located near Athol, or 15
  miles northwest of Redfield, moving east at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Athol around 820 AM CDT.
  Ashton around 825 AM CDT.

Other locations in the path of this severe thunderstorm include
Frankfort and Camrose Colony.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4510 9805 4477 9824 4486 9870 4490 9871
      4490 9890 4521 9875
TIME...MOT...LOC 1310Z 290DEG 35KT 4505 9870 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

SD
2 follow-up statements
891 
WWUS53 KABR 261340
SVSABR

Severe Weather Statement
National Weather Service Aberdeen SD
840 AM CDT Thu Aug 26 2021

SDC049-261349-
/O.CAN.KABR.SV.W.0124.000000T0000Z-210826T1400Z/
Faulk SD-
840 AM CDT Thu Aug 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN FAULK COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has weakened. 
Therefore, the warning has been cancelled.

LAT...LON 4510 9805 4477 9824 4486 9870 4489 9870
      4490 9872 4520 9871
TIME...MOT...LOC 1339Z 290DEG 35KT 4495 9832 

$$

SDC115-261400-
/O.CON.KABR.SV.W.0124.000000T0000Z-210826T1400Z/
Spink SD-
840 AM CDT Thu Aug 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 AM CDT
FOR CENTRAL SPINK COUNTY...

At 839 AM CDT, a severe thunderstorm was located near Camrose Colony,
or 11 miles northeast of Redfield, moving east at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
  Camrose Colony.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4510 9805 4477 9824 4486 9870 4489 9870
      4490 9872 4520 9871
TIME...MOT...LOC 1339Z 290DEG 35KT 4495 9832 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

SD
207 
WWUS53 KABR 261357
SVSABR

Severe Weather Statement
National Weather Service Aberdeen SD
857 AM CDT Thu Aug 26 2021

SDC115-261406-
/O.EXP.KABR.SV.W.0124.000000T0000Z-210826T1400Z/
Spink SD-
857 AM CDT Thu Aug 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL SPINK COUNTY WILL
EXPIRE AT 900 AM 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 are still possible with this thunderstorm.

Remember, a Severe Thunderstorm Warning still remains in effect for 
Spink County until 930 AM CDT.

LAT...LON 4510 9805 4477 9824 4486 9870 4489 9870
      4490 9872 4520 9871
TIME...MOT...LOC 1356Z 290DEG 35KT 4490 9811 

$$

SD

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 26, 3:47 AM CDTSevere Thunderstorm WarningABRCorson58 min
Aug 26, 4:44 AM CDTSevere Thunderstorm WarningABRCorson46 min
Aug 26, 5:37 AM CDTSpecial Weather StatementABRCampbell, Dewey, Walworth53 min
Aug 26, 7:19 AM CDTSpecial Weather StatementABREdmunds, Faulk26 min
Aug 26, 7:47 AM CDTSevere Thunderstorm WarningABRFaulk, Hand43 min
Aug 26, 8:01 AM CDTSevere Thunderstorm WarningABRFaulk, Hand, Hyde44 min
Aug 26, 8:18 AM CDTSevere Thunderstorm WarningABRDay, Marshall, Roberts57 min
Aug 26, 8:24 AM CDTSevere Thunderstorm WarningABRHand, Spink36 min
Aug 26, 8:45 AM CDTSevere Thunderstorm WarningABRClark, Spink45 min
Aug 26, 9:14 AM CDTSevere Thunderstorm WarningABRRoberts46 min
Aug 26, 9:22 AM CDTSevere Thunderstorm WarningABRClark, Hamlin, Spink38 min
Aug 26, 9:26 AM CDTSevere Thunderstorm WarningABRClark, Codington, Hamlin49 min
Aug 26, 9:50 AM CDTHigh Wind WarningABRBrown, Clark, Codington, Day, Deuel, Grant and 4 more5 hr
Aug 26, 9:57 AM CDTSevere Thunderstorm WarningABRGrant, Roberts33 min
Aug 26, 9:58 AM CDTSevere Thunderstorm WarningABRDeuel, Hamlin62 min
Aug 26, 10:00 AM CDTSevere Thunderstorm WarningABRCodington, Deuel, Grant, Hamlin60 min
Aug 26, 2:37 PM CDTSevere Thunderstorm WarningABRRoberts23 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.