Alert archive / South Dakota / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 85, NWS Aberdeen, SD
NWS Aberdeen, SD issued this severe thunderstorm warning at Aug 7, 2021, 12:10 AM CDT for 4 counties in 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
- Aug 7, 2021, 12:10 AM CDT (05:10 UTC)
- Expired
- Aug 7, 2021, 1:00 AM CDT
- In force
- 50 min
- Issued by
- NWS Aberdeen, SD
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Hail
- 1.0 in
- Wind
- 70.0 mph
Counties Faulk County, SD, Hand County, SD, Hyde County, SD, Spink County, SD
The radar
The Aberdeen radar (KABR), 104 km from the middle of the area, began a volume at 05:13 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 6, 7:21 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 5.2 hours before the alert went out and 56 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.
- Mixed-layer CAPE
- 466 J/kg
- Mixed-layer CIN
- -132 J/kg
- Mixed-layer LCL
- 1480 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 113 m²/s²
- 0-3 km storm-relative helicity
- 173 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
117
WUUS53 KABR 070510
SVRABR
SDC049-059-069-115-070600-
/O.NEW.KABR.SV.W.0085.210807T0510Z-210807T0600Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Aberdeen SD
1210 AM CDT Sat Aug 7 2021
The National Weather Service in Aberdeen has issued a
* Severe Thunderstorm Warning for...
Hand County in central South Dakota...
Northern Hyde County in central South Dakota...
Southeastern Faulk County in north central South Dakota...
Southwestern Spink County in northeastern South Dakota...
* Until 100 AM CDT.
* At 1210 AM CDT, a severe thunderstorm was located over Ree Heights,
or 9 miles east of Highmore, moving northeast at 55 mph.
HAZARD...70 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect considerable
tree damage. Wind damage is also likely to mobile homes,
roofs, and outbuildings.
* Locations impacted include...
Polo, Orient, Rockham and Miranda.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.
&&
LAT...LON 4449 9961 4504 9923 4483 9843 4463 9858
4463 9871 4447 9870 4424 9887
TIME...MOT...LOC 0510Z 210DEG 46KT 4450 9925
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
Mohr2 follow-up statements
278
WWUS53 KABR 070534
SVSABR
Severe Weather Statement
National Weather Service Aberdeen SD
1234 AM CDT Sat Aug 7 2021
SDC049-059-069-115-070600-
/O.CON.KABR.SV.W.0085.000000T0000Z-210807T0600Z/
Hand SD-Hyde SD-Faulk SD-Spink SD-
1234 AM CDT Sat Aug 7 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 AM CDT
FOR HAND...NORTHERN HYDE...SOUTHEASTERN FAULK AND SOUTHWESTERN SPINK
COUNTIES...
At 1233 AM CDT, a severe thunderstorm was located near Polo, or 13
miles northwest of Miller, moving northeast at 40 mph.
HAZARD...70 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect considerable
tree damage. Wind damage is also likely to mobile homes,
roofs, and outbuildings.
Locations impacted include...
Redfield, Miller, Highmore, Tulare, St. Lawrence, Zell, Orient, Ree
Heights, Burdette, Rockham, Vayland, Miranda, Miller Dale Colony,
Polo, Sunshine Bible Academy, Twin Lakes and Cottonwood Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.
&&
LAT...LON 4449 9961 4504 9923 4483 9843 4463 9858
4463 9871 4447 9870 4424 9887
TIME...MOT...LOC 0533Z 208DEG 35KT 4469 9910
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
Mohr256
WWUS53 KABR 070600
SVSABR
Severe Weather Statement
National Weather Service Aberdeen SD
100 AM CDT Sat Aug 7 2021
SDC049-059-069-115-070610-
/O.EXP.KABR.SV.W.0085.000000T0000Z-210807T0600Z/
Hand SD-Hyde SD-Faulk SD-Spink SD-
100 AM CDT Sat Aug 7 2021
...THE SEVERE THUNDERSTORM WARNING FOR HAND...NORTHERN HYDE...
SOUTHEASTERN FAULK AND SOUTHWESTERN SPINK COUNTIES HAS EXPIRED...
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 allowed to expire.
LAT...LON 4449 9961 4504 9923 4483 9843 4463 9858
4463 9871 4447 9870 4424 9887
TIME...MOT...LOC 0600Z 210DEG 46KT 4497 9887
$$
MohrThe office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 9:49 PM CDT | Special Weather Statement | ABR | Jones, Stanley | 41 min |
| Aug 6, 11:07 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Lyman | 38 min |
| Aug 6, 11:29 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Hand, Hyde, Lyman | 46 min |
| Aug 7, 4:35 AM CDT | Areal Flood Warning | ABR | Codington, Deuel | 4 hr |
| Aug 7, 6:39 PM CDT | Severe Thunderstorm Warning | ABR | Brown, McPherson | 51 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.