Alert archive / South Dakota / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 146, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Aug 30, 2021, 5:25 PM CDT for Hutchinson County, Turner County, South Dakota. It was in force for 35 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
- Aug 30, 2021, 5:25 PM CDT (22:25 UTC)
- Expired
- Aug 30, 2021, 6:00 PM CDT
- In force
- 35 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), 67 km from the middle of the area, began a volume at 22:27 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 30, 5:27 PM CDT | HAIL 1.75 | 5 Sw Freeman, SD | LIGHT RAIN AND MOSTLY SMALL HAIL, BUT A FEW STONES AS BIG AS GOLF BALLS. |
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, 10.4 hours before the alert went out and 191 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1772 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
747
WUUS53 KFSD 302225
SVRFSD
SDC067-125-302300-
/O.NEW.KFSD.SV.W.0146.210830T2225Z-210830T2300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Sioux Falls SD
525 PM CDT Mon Aug 30 2021
The National Weather Service in Sioux Falls has issued a
* Severe Thunderstorm Warning for...
West central Turner County in southeastern South Dakota...
East central Hutchinson County in southeastern South Dakota...
* Until 600 PM CDT.
* At 525 PM CDT, a severe thunderstorm was located near Freeman, or
20 miles west of Parker, moving east at 20 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...
Freeman around 545 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4329 9759 4339 9759 4341 9728 4319 9729
TIME...MOT...LOC 2225Z 271DEG 15KT 4333 9753
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
BP2 follow-up statements
771
WWUS53 KFSD 302240
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
540 PM CDT Mon Aug 30 2021
SDC067-125-302300-
/O.CON.KFSD.SV.W.0146.000000T0000Z-210830T2300Z/
Turner SD-Hutchinson SD-
540 PM CDT Mon Aug 30 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CDT
FOR WEST CENTRAL TURNER AND EAST CENTRAL HUTCHINSON COUNTIES...
At 540 PM CDT, a severe thunderstorm was located over Freeman, or 14
miles west of Parker, moving east at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
This severe thunderstorm will remain over mainly rural areas of west
central Turner and east central Hutchinson Counties.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Sioux Falls.
&&
LAT...LON 4337 9754 4339 9752 4341 9728 4327 9729
4332 9748
TIME...MOT...LOC 2240Z 266DEG 17KT 4334 9742
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
BP597
WWUS53 KFSD 302253
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
553 PM CDT Mon Aug 30 2021
SDC067-125-302300-
/O.EXP.KFSD.SV.W.0146.000000T0000Z-210830T2300Z/
Turner SD-Hutchinson SD-
553 PM CDT Mon Aug 30 2021
...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL TURNER AND EAST
CENTRAL HUTCHINSON COUNTIES WILL EXPIRE AT 600 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.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Sioux Falls.
LAT...LON 4337 9754 4339 9752 4341 9728 4327 9729
4332 9748
TIME...MOT...LOC 2250Z 271DEG 15KT 4334 9737
$$
BPThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 30, 4:19 PM CDT | Severe Thunderstorm Warning | FSD | Davison, Hanson, Hutchinson | 56 min |
| Aug 30, 5:30 PM CDT | Severe Thunderstorm Warning | FSD | Hanson, Hutchinson, McCook | 30 min |
| Aug 30, 5:59 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson, Turner, Yankton | 23 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.