Alert archive / South Dakota / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 126, NWS Sioux Falls, SD

July 18, 2023Aurora County, Brule County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jul 18, 2023, 8:03 PM CDT for Aurora County, Brule County, South Dakota. It was in force for 57 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 18, 2023, 8:03 PM CDT (01:03 UTC)
Expired: Jul 18, 2023, 9:00 PM CDT
In force: 57 min
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

Counties Aurora County, SD, Brule County, SD

The radar

The Sioux Falls radar (KFSD), 169 km from the middle of the area, began a volume at 01:04 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
Jul 18, 6:20 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Sioux Falls, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 18, 6:53 PM CDT, 1 hour 10 minutes earlier.

Area forecast discussion, Jul 18, 6:53 PM CDT, 1 hour 10 minutes before

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Hazardous weather outlook, Jul 18, 4:21 AM CDT, 15 hours 42 minutes before

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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 18, 8:29 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule	61 min
Jul 18, 9:33 PM CDT	Severe Thunderstorm Warning	FSD	Brule, Charles Mix, Gregory	57 min
Jul 18, 10:15 PM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Gregory	30 min
Jul 18, 11:12 PM CDT	Severe Thunderstorm Warning	FSD	Brule, Charles Mix, Gregory	38 min
Jul 19, 2:36 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Kingsbury	39 min
Jul 19, 3:14 PM CDT	Severe Thunderstorm Warning	FSD	Brookings	46 min
Jul 19, 5:28 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Yankton	47 min
Jul 19, 3:59 PM CDT	Severe Thunderstorm Warning	FSD	Lyon	28 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2023 Every severe thunderstorm warning in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.