Alert archive / South Dakota / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 204, NWS Sioux Falls, SD

July 27, 20255 counties in South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jul 27, 2025, 10:32 PM CDT for 5 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 counties it named.

The facts

Issued: Jul 27, 2025, 10:32 PM CDT (03:32 UTC)
Expired: Jul 27, 2025, 11:15 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 Hanson County, SD, Lake County, SD, McCook County, SD, Miner County, SD, Turner County, SD

The radar

The Sioux Falls radar (KFSD), 57 km from the middle of the area, began a volume at 03:30 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 27, 4:47 PM CDT	Severe Thunderstorm Watch	SPC	9 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.

Hazardous weather outlook, Jul 27, 8:49 PM CDT, 1 hour 43 minutes before

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In the hours before

Local storm report, Jul 27, 9:29 PM CDT, 1 hour 3 minutes before

Preliminary Local Storm Report
National Weather Service Sioux Falls SD
929 PM CDT Sun Jul 27 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0925 PM     Hail             Marshall                44.45N 95.79W
07/27/2025  M1.00 Inch       Lyon               MN   Trained Spotter

&&

MM

Local storm report, Jul 27, 10:06 PM CDT, 26 minutes before

Preliminary Local Storm Report
National Weather Service Sioux Falls SD
1006 PM CDT Sun Jul 27 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0955 PM     Tstm Wnd Gst     3 ENE Letcher           43.91N 98.09W
07/27/2025  M65 MPH          Sanborn            SD   Mesonet

&&

MM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 27, 8:22 PM CDT	Severe Thunderstorm Warning	FSD	Brule	53 min
Jul 27, 9:10 PM CDT	Severe Thunderstorm Warning	FSD	Brule	35 min
Jul 27, 9:26 PM CDT	Severe Thunderstorm Warning	FSD	Jerauld, Sanborn	49 min
Jul 27, 9:54 PM CDT	Severe Thunderstorm Warning	FSD	Brookings	51 min
Jul 27, 10:05 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Hanson, Miner, Sanborn	40 min
Jul 27, 10:28 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Moody	47 min
Jul 27, 10:59 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	McCook, Minnehaha, Turner	46 min
Jul 27, 11:28 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Lincoln, Minnehaha, Turner	47 min
Jul 27, 11:58 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln	62 min
Jul 28, 12:14 AM CDT	Severe Thunderstorm Warning	FSD	Clay, Lincoln, Union	46 min
Jul 28, 1:00 AM CDT	Severe Thunderstorm Warning	FSD	Lincoln, Union	15 min
Jul 28, 1:41 AM CDT	Severe Thunderstorm Warning	FSD	Union	49 min
Jul 28, 8:35 AM CDT	River Flood Warning	FSD	Brookings, Hamlin	21 days
Jul 28, 4:15 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Brule, Charles Mix, Gregory	45 min
Jul 28, 4:34 PM CDT	Tornado Warning	FSD	Brule, Charles Mix, Gregory	26 min
Jul 28, 5:01 PM CDT	Tornado Warning	FSD	Brule, Charles Mix, Gregory	29 min
Jul 28, 5:19 PM CDT	Tornado Warning Tornado observed	FSD	Gregory	26 min
Jul 28, 5:35 PM CDT	Tornado Warning	FSD	Aurora, Brule, Jerauld	40 min
Jul 28, 5:40 PM CDT	Severe Thunderstorm Warning Destructive damage threat	FSD	Charles Mix, Gregory	50 min
Jul 28, 5:46 PM CDT	Tornado Warning Tornado observed	FSD	Gregory	29 min
Jul 28, 6:10 PM CDT	Tornado Warning Tornado observed	FSD	Charles Mix, Gregory	50 min
Jul 28, 6:12 PM CDT	Tornado Warning	FSD	Aurora, Brule, Davison, Jerauld	48 min
Jul 28, 6:22 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Charles Mix, Douglas, Gregory	38 min
Jul 28, 6:48 PM CDT	Tornado Warning	FSD	Aurora, Brule, Davison, Douglas	42 min
Jul 28, 6:54 PM CDT	Tornado Warning	FSD	Charles Mix, Gregory	24 min
Jul 28, 6:57 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FSD	Charles Mix, Gregory	48 min
Jul 27, 11:05 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Dickinson, Osceola	40 min
Jul 27, 11:33 PM CDT	Severe Thunderstorm Warning	FSD	Dickinson, Osceola	57 min
Jul 28, 12:01 AM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Clay, Dickinson, O'Brien, Osceola	44 min
Jul 28, 12:30 AM CDT	Severe Thunderstorm Warning	FSD	Dickinson, Lyon, O'Brien, Osceola, Plymouth, Sioux and 1 more	45 min
Jul 28, 12:42 AM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Clay, Dickinson, O'Brien, Osceola	48 min
Jul 28, 1:15 AM CDT	Severe Thunderstorm Warning	FSD	Cherokee, Clay, Dickinson, Lyon, O'Brien, Osceola and 2 more	45 min
Jul 28, 1:29 AM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Clay, Dickinson, O'Brien	46 min
Jul 28, 1:44 AM CDT	Flash Flood Warning	FSD	O'Brien, Sioux	91 min
Jul 28, 1:57 AM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Clay, O'Brien, Plymouth, Sioux	48 min
Jul 28, 2:28 AM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Ida, Plymouth, Woodbury	62 min
Jul 27, 8:07 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln, Lyon	53 min
Jul 27, 9:28 PM CDT	Severe Thunderstorm Warning	FSD	Lyon	15 min
Jul 27, 9:41 PM CDT	Severe Thunderstorm Warning	FSD	Murray	34 min
Jul 27, 10:08 PM CDT	Severe Thunderstorm Warning	FSD	Cottonwood, Murray	28 min
Jul 27, 10:48 PM CDT	Flash Flood Warning	FSD	Lincoln, Lyon	2 hr
Jul 27, 11:19 PM CDT	Severe Thunderstorm Warning	FSD	Murray, Nobles, Pipestone, Rock	41 min
Jul 28, 12:21 AM CDT	Severe Thunderstorm Warning	FSD	Cottonwood, Murray, Nobles, Pipestone, Rock	39 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2025 Every severe thunderstorm warning in 2025

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.