Alert archive / South Dakota / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 20, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 14, 2021, 1:35 AM CDT for Beadle County, Kingsbury County, South Dakota. It was in force for 25 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
- Jun 14, 2021, 1:35 AM CDT (06:35 UTC)
- Expired
- Jun 14, 2021, 2:00 AM CDT
- In force
- 25 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Beadle County, SD, Kingsbury County, SD
The radar
The Sioux Falls radar (KFSD), 124 km from the middle of the area, began a volume at 06:36 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, 6.6 hours before the alert went out and 75 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
- 2913 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
653
WUUS53 KFSD 140635
SVRFSD
SDC005-077-140700-
/O.NEW.KFSD.SV.W.0020.210614T0635Z-210614T0700Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Sioux Falls SD
135 AM CDT Mon Jun 14 2021
The National Weather Service in Sioux Falls has issued a
* Severe Thunderstorm Warning for...
Southwestern Kingsbury County in east central South Dakota...
Southeastern Beadle County in east central South Dakota...
* Until 200 AM CDT.
* At 135 AM CDT, severe thunderstorms were located along a line
extending from near Huron to near Iroquois, moving southeast at 30
mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
* Severe thunderstorms will be near...
Huron and Iroquois around 140 AM CDT.
Cavour around 200 AM CDT.
Other locations impacted by these severe thunderstorms include
Broadland.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4442 9770 4420 9740 4420 9786 4426 9817
4450 9843
TIME...MOT...LOC 0635Z 308DEG 24KT 4444 9826 4436 9790
HAIL...1.00IN
WIND...<50MPH
$$
JH2 follow-up statements
885
WWUS53 KFSD 140648
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
148 AM CDT Mon Jun 14 2021
SDC005-140657-
/O.CAN.KFSD.SV.W.0020.000000T0000Z-210614T0700Z/
Beadle SD-
148 AM CDT Mon Jun 14 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BEADLE COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4442 9770 4420 9740 4420 9786 4424 9785
4443 9785 4444 9784
TIME...MOT...LOC 0647Z 301DEG 27KT 4430 9778
$$
SDC077-140700-
/O.CON.KFSD.SV.W.0020.000000T0000Z-210614T0700Z/
Kingsbury SD-
148 AM CDT Mon Jun 14 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 AM CDT
FOR SOUTHWESTERN KINGSBURY COUNTY...
At 147 AM CDT, a severe thunderstorm was located just southeast of
Iroquois, or 16 miles west of Lake Thompson State Recreation Area,
moving southeast at 30 mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
This severe thunderstorm will remain over mainly rural areas of
southwestern Kingsbury County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4442 9770 4420 9740 4420 9786 4424 9785
4443 9785 4444 9784
TIME...MOT...LOC 0647Z 301DEG 27KT 4430 9778
HAIL...1.00IN
WIND...<50MPH
$$
JH696
WWUS53 KFSD 140700
SVSFSD
Severe Weather Statement
National Weather Service Sioux Falls SD
200 AM CDT Mon Jun 14 2021
SDC077-140710-
/O.EXP.KFSD.SV.W.0020.000000T0000Z-210614T0700Z/
Kingsbury SD-
200 AM CDT Mon Jun 14 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN KINGSBURY COUNTY
HAS EXPIRED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been allowed to expire. However small
hail is still possible with this thunderstorm.
LAT...LON 4442 9770 4420 9740 4420 9786 4424 9785
4443 9785 4444 9784
TIME...MOT...LOC 0700Z 308DEG 24KT 4426 9770
$$
JHThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 14, 3:53 AM CDT | Severe Thunderstorm Warning | FSD | Kingsbury | 37 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.