Alert archive / South Dakota / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 89, NWS Aberdeen, SD

July 9, 20258 counties in South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jul 9, 2025, 7:23 PM CDT for 8 counties in South Dakota. It was in force for 52 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 9, 2025, 7:23 PM CDT (00:23 UTC)
Expired
Jul 9, 2025, 8:15 PM CDT
In force
52 min
Issued by
NWS Aberdeen, SD
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Campbell County, SD, Edmunds County, SD, Faulk County, SD, Hyde County, SD, McPherson County, SD, Potter County, SD, Sully County, SD, Walworth County, SD

The radar

The Aberdeen radar (KABR), 100 km from the middle of the area, began a volume at 00:26 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.

IssuedProductOfficeLasted
Jul 9, 2:47 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 0.4 hours before the alert went out and 190 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.

Skew-T log-pSkew-T log-p diagram, Bismarck Municip, ND at 00:00Z on 2025-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4873 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 00:00Z on 2025-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
4873 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
1777 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
129 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 7:16 PM CDTSpecial Weather StatementABRLyman29 min
Jul 9, 7:39 PM CDTSevere Thunderstorm WarningABRLyman51 min
Jul 9, 7:49 PM CDTSevere Thunderstorm Warning Considerable damage threatABRJones, Stanley41 min
Jul 9, 7:55 PM CDTSevere Thunderstorm WarningABRCampbell, McPherson50 min
Jul 9, 8:00 PM CDTSevere Thunderstorm WarningABRHughes, Hyde, Lyman, Stanley, Sully45 min
Jul 9, 8:10 PM CDTSevere Thunderstorm Warning Considerable damage threatABRCampbell, Edmunds, Faulk, Hand, Hyde, McPherson and 3 more65 min
Jul 9, 8:24 PM CDTSevere Thunderstorm WarningABRHughes, Jones, Lyman, Stanley51 min
Jul 9, 8:30 PM CDTSevere Thunderstorm WarningABRMcPherson60 min
Jul 9, 8:43 PM CDTSevere Thunderstorm Warning Considerable damage threatABRBuffalo, Hughes, Hyde, Lyman, Stanley47 min
Jul 9, 9:09 PM CDTSevere Thunderstorm WarningABRBuffalo, Faulk, Hand, Hughes, Hyde, Lyman and 1 more66 min
Jul 9, 9:12 PM CDTSevere Thunderstorm WarningABRBrown, Edmunds, McPherson33 min
Jul 9, 9:20 PM CDTSpecial Weather StatementABREdmunds40 min
Jul 9, 9:27 PM CDTSevere Thunderstorm WarningABRBrown, Edmunds28 min
Jul 9, 10:07 PM CDTAreal Flood WarningABRHand6 hr
Jul 9, 10:16 PM CDTSpecial Weather StatementABRClark, Day, Spink59 min
Jul 9, 10:53 PM CDTSpecial Weather StatementABRMarshall67 min
Jul 9, 11:16 PM CDTSpecial Weather StatementABRClark, Codington, Day, Hamlin59 min
Jul 10, 12:17 AM CDTSpecial Weather StatementABRCodington, Deuel, Grant, Hamlin58 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2025Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.