Severe Thunderstorm Warning 68, NWS Sioux Falls, SD

Issued

Aug 5, 2021, 7:00 PM CDT (00:00 UTC)

Expired

Aug 5, 2021, 7:45 PM CDT

In force

45 min

Issued by

NWS Sioux Falls, SD

Area

Storm-based polygon

Hail

1.25 in

Wind

50.0 mph

Counties Lake County, SD, Moody County, SD

The Sioux Falls radar (KFSD), 59 km from the middle of the area, began a volume at 00:00 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.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

990 
WUUS53 KFSD 060000
SVRFSD
SDC079-101-060045-
/O.NEW.KFSD.SV.W.0068.210806T0000Z-210806T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Sioux Falls SD
700 PM CDT Thu Aug 5 2021

The National Weather Service in Sioux Falls has issued a

* Severe Thunderstorm Warning for...
  Northwestern Moody County in east central South Dakota...
  Northeastern Lake County in east central South Dakota...

* Until 745 PM CDT.

* At 659 PM CDT, a severe thunderstorm was located near Nunda, or 10
  miles southwest of Brookings, moving southeast at 25 mph.

  HAZARD...Half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* Locations impacted include...
  Flandreau and Egan.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 4412 9650 4390 9677 4415 9696 4420 9688
      4420 9687
TIME...MOT...LOC 2359Z 300DEG 21KT 4416 9688 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH

$$

SSC

065 
WWUS53 KFSD 060023
SVSFSD

Severe Weather Statement
National Weather Service Sioux Falls SD
723 PM CDT Thu Aug 5 2021

SDC079-101-060045-
/O.CON.KFSD.SV.W.0068.000000T0000Z-210806T0045Z/
Moody SD-Lake SD-
723 PM CDT Thu Aug 5 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR NORTHWESTERN MOODY AND EASTERN LAKE COUNTIES...

At 723 PM CDT, Doppler radar indicated a severe thunderstorm capable
of producing half dollar size hail. This storm was located near
Flandreau, or 15 miles south of Brookings, moving southeast at 25
mph.

Locations impacted include...
Flandreau, Colman, Egan and Flandreau Santee Sioux Tribal Nation. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you are in the path of this storm, prepare immediately for large
hail and damaging winds. People outside should move to a shelter,
preferably inside a strong building and away from windows.

In addition to large hail and damaging winds, continuous cloud to
ground lightning is occurring with this storm.  Move indoors
immediately. Lightning is one of nature's leading killers. Remember,
if you can hear thunder, you are close enough to be struck by
lightning.

&&

LAT...LON 4412 9650 4390 9677 4414 9695 4416 9686
      4417 9673
TIME...MOT...LOC 0023Z 300DEG 21KT 4409 9671 

$$

SSC

Severe Thunderstorm Warnings in South Dakota, 2021Every severe thunderstorm warning in 2021

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.