Alert archive / South Dakota / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 113, NWS Aberdeen, SD

July 15, 2025Lyman County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jul 15, 2025, 4:03 PM CDT for Lyman County, South Dakota. It was in force for 42 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 15, 2025, 4:03 PM CDT (21:03 UTC)
Expired
Jul 15, 2025, 4:45 PM CDT
In force
42 min
Issued by
NWS Aberdeen, SD
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Lyman County, SD

The radar

The Aberdeen radar (KABR), 207 km from the middle of the area, began a volume at 21:04 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 nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 9.1 hours before the alert went out and 160 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, Aberdeen, SD at 12:00Z on 2025-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 220 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, Aberdeen, SD at 12:00Z on 2025-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 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
220 J/kg
Mixed-layer CIN
-336 J/kg
Mixed-layer LCL
2280 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
47 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 14, 7:29 PM CDTSpecial Weather StatementABRPotter31 min
Jul 14, 7:42 PM CDTSpecial Weather StatementABRJones33 min
Jul 14, 7:59 PM CDTSpecial Weather StatementABRCorson31 min
Jul 14, 8:03 PM CDTSpecial Weather StatementABRHughes27 min
Jul 14, 8:09 PM CDTSevere Thunderstorm Warning Destructive damage threatABRHughes, Stanley51 min
Jul 14, 8:30 PM CDTSpecial Weather StatementABRCorson30 min
Jul 14, 8:50 PM CDTSevere Thunderstorm WarningABRDewey40 min
Jul 14, 8:56 PM CDTSevere Thunderstorm WarningABRHughes, Hyde, Sully49 min
Jul 14, 9:11 PM CDTSevere Thunderstorm WarningABRJones, Stanley64 min
Jul 14, 9:25 PM CDTSevere Thunderstorm WarningABRDewey35 min
Jul 14, 9:35 PM CDTSpecial Weather StatementABRHyde40 min
Jul 14, 9:46 PM CDTSpecial Weather StatementABRMcPherson44 min
Jul 14, 10:00 PM CDTHigh Wind WarningABRHughes, Jones, Lyman, Stanley2 hr
Jul 14, 10:24 PM CDTSevere Thunderstorm WarningABRBrown51 min
Jul 15, 12:33 AM CDTSevere Thunderstorm WarningABRMarshall, Roberts42 min
Jul 15, 1:11 AM CDTSevere Thunderstorm WarningABRMarshall, Roberts49 min
Jul 15, 1:57 AM CDTSevere Thunderstorm WarningABRRoberts48 min
Jul 15, 2:27 AM CDTSevere Thunderstorm WarningABRRoberts13 min
Jul 15, 2:37 PM CDTSpecial Weather StatementABRBrown38 min
Jul 15, 3:57 PM CDTAreal Flood WarningABRBrown, Edmunds, Faulk, Spink3 hr
Jul 15, 4:34 PM CDTSevere Thunderstorm WarningABRBuffalo41 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.