Alert archive / South Dakota / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 12, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at May 24, 2021, 7:32 PM CDT for 4 counties in South Dakota. It was in force for 43 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
- May 24, 2021, 7:32 PM CDT (00:32 UTC)
- Expired
- May 24, 2021, 8:15 PM CDT
- In force
- 43 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Davison County, SD, Hanson County, SD, Miner County, SD, Sanborn County, SD
The radar
The Sioux Falls radar (KFSD), 89 km from the middle of the area, began a volume at 00:33 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
Aberdeen, SD (KABR), launched 00:00Z, 0.5 hours before the alert went out and 133 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
- 10 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 3307 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 25 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
278
WUUS53 KFSD 250032
SVRFSD
SDC035-061-097-111-250115-
/O.NEW.KFSD.SV.W.0012.210525T0032Z-210525T0115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Sioux Falls SD
732 PM CDT Mon May 24 2021
The National Weather Service in Sioux Falls has issued a
* Severe Thunderstorm Warning for...
Northeastern Davison County in southeastern South Dakota...
Southeastern Sanborn County in east central South Dakota...
Southwestern Miner County in east central South Dakota...
Northern Hanson County in southeastern South Dakota...
* Until 815 PM CDT.
* At 732 PM CDT, a severe thunderstorm was located over Mitchell,
moving northeast at 30 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...
Fulton around 750 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4377 9761 4376 9761 4362 9807 4378 9815
4401 9777
TIME...MOT...LOC 0032Z 240DEG 27KT 4374 9806
HAIL...1.00IN
WIND...60MPH
$$
Chapman2 follow-up statements
627
WWUS53 KFSD 250101
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
801 PM CDT Mon May 24 2021
SDC035-111-250110-
/O.CAN.KFSD.SV.W.0012.000000T0000Z-210525T0115Z/
Davison SD-Sanborn SD-
801 PM CDT Mon May 24 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN DAVISON AND
SOUTHEASTERN SANBORN COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4377 9761 4376 9761 4365 9796 4384 9786
4401 9777
TIME...MOT...LOC 0100Z 256DEG 27KT 4376 9785
$$
SDC061-097-250115-
/O.CON.KFSD.SV.W.0012.000000T0000Z-210525T0115Z/
Miner SD-Hanson SD-
801 PM CDT Mon May 24 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR SOUTHWESTERN MINER AND NORTHERN HANSON COUNTIES...
At 800 PM CDT, a severe thunderstorm was located over Fulton, or 9
miles east of Mitchell, moving east at 30 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.
Damaging wind and hail up to quarter size will impact areas near
Fulton through 810 pm CDT. Other rural areas of northern Hanson
County north and east of Fulton will be impacted through 815 pm.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4377 9761 4376 9761 4365 9796 4384 9786
4401 9777
TIME...MOT...LOC 0100Z 256DEG 27KT 4376 9785
HAIL...1.00IN
WIND...60MPH
$$
Chapman521
WWUS53 KFSD 250115
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
815 PM CDT Mon May 24 2021
SDC061-097-250124-
/O.EXP.KFSD.SV.W.0012.000000T0000Z-210525T0115Z/
Miner SD-Hanson SD-
815 PM CDT Mon May 24 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN MINER AND
NORTHERN HANSON COUNTIES WILL EXPIRE AT 815 PM CDT...
The severe thunderstorm which prompted the warning has weakened.
Therefore, the warning will be allowed to expire. However, gusty
winds to 50 mph and small hail are still possible with this
thunderstorm.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Sioux Falls.
LAT...LON 4377 9761 4376 9761 4365 9796 4384 9786
4401 9777
TIME...MOT...LOC 0114Z 240DEG 27KT 4381 9774
$$
ChapmanNearby
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.