Alert archive / South Dakota / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 89, NWS Aberdeen, SD

June 29, 20266 counties in South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jun 29, 2026, 5:36 AM CDT for 6 counties in South Dakota. It was in force for 54 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
Jun 29, 2026, 5:36 AM CDT (10:36 UTC)
Expired
Jun 29, 2026, 6:30 AM CDT
In force
54 min
Issued by
NWS Aberdeen, SD
Area
Storm-based polygon
Damage threat
Considerable
Hail
1.0 in
Wind
70.0 mph

Counties Hand County, SD, Hughes County, SD, Hyde County, SD, Lyman County, SD, Stanley County, SD, Sully County, SD

The radar

The Aberdeen radar (KABR), 163 km from the middle of the area, began a volume at 10:34 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
Jun 28, 10:02 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Rapid City, SD (KUNR), launched 00:00Z, 10.6 hours before the alert went out and 243 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, Rapid City, SD at 00:00Z on 2026-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Rapid City, SD at 00:00Z on 2026-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3486 m above ground
0-6 km bulk shear
78 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
121 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 Aberdeen, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 29, 2:11 AM CDT, 3 hours 25 minutes earlier.

Area forecast discussion, Jun 29, 2:11 AM CDT, 3 hours 25 minutes before
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Hazardous weather outlook, Jun 29, 3:12 AM CDT, 2 hours 24 minutes before
Hazardous Weather Outlook
National Weather Service Aberdeen SD
312 AM CDT Mon Jun 29 2026

SDZ003>007-009-010-015>018-033>037-045-048-051-300815-
Corson-Campbell-McPherson-Brown-Marshall-Walworth-Edmunds-Dewey-
Potter-Faulk-Spink-Stanley-Sully-Hughes-Hyde-Hand-Jones-Lyman-
Buffalo-
312 AM CDT Mon Jun 29 2026 /212 AM MDT Mon Jun 29 2026/

This Hazardous Weather Outlook is for central South Dakota, north
central South Dakota and northeast South Dakota.

.DAY ONE...Today and tonight.

Slight (2 of 5) to Marginal (1 of 5) Risk for severe storms into
mid-morning. Hail up to 3 inches in diameter and wind gusts of up to
90 mph will be possible. Additionally, the development of a tornado
or two cannot be ruled out.

Patchy to areas of fog will be reducing visibilities into the morning
hours.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Marginal risk for severe storm development overnight Tuesday into
Wednesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be requested. Weather spotters are encouraged
to submit reports to the National Weather Service in Aberdeen. The
public can submit reports on our web page, Facebook page, or our X
feed.

MNZ039-046-SDZ008-011-019>023-300815-
Traverse-Big Stone-Roberts-Day-Clark-Codington-Grant-Hamlin-Deuel-
312 AM CDT Mon Jun 29 2026

This Hazardous Weather Outlook is for west central Minnesota and
northeast South Dakota.

.DAY ONE...Today and tonight.

Slight (2 of 5) to Marginal (1 of 5) Risk for severe weather mainly
late afternoon moving east into the evening. Hail up to 1 inch in
diameter and wind gusts of 60 mph will be possible in storms that do
form.

Patchy to areas of fog will be reducing visibilities into the morning
hours.

High temperatures in the 90s and high humidity values will be causing
heat index values to get into the upper 90s to low 100s this
afternoon over portions of northeastern SD.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Marginal risk for severe storm development overnight Tuesday into
Wednesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be requested. Weather spotters are encouraged
to submit reports to the National Weather Service in Aberdeen. The
public can submit reports on our web page, Facebook page, or our X
feed.

In the hours before

Special weather statement, Jun 29, 3:29 AM CDT, 2 hours 7 minutes before
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Special weather statement, Jun 29, 3:43 AM CDT, 1 hour 53 minutes before
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Local storm report, Jun 29, 4:17 AM CDT, 1 hour 19 minutes before
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Local storm report, Jun 29, 5:03 AM CDT, 33 minutes before
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Local storm report, Jun 29, 5:22 AM CDT, 14 minutes before
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Local storm report, Jun 29, 5:28 AM CDT, 8 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 2:07 AM CDTDense Fog AdvisoryABRBrown, Campbell, Clark, Codington, Day, Deuel and 12 more5 hr
Jun 29, 3:04 AM CDTSpecial Weather StatementABRDewey26 min
Jun 29, 3:29 AM CDTSpecial Weather StatementABRDewey31 min
Jun 29, 3:43 AM CDTSpecial Weather StatementABRJones32 min
Jun 29, 3:52 AM CDTSevere Thunderstorm WarningABRJones, Stanley38 min
Jun 29, 4:22 AM CDTSevere Thunderstorm WarningABRJones, Lyman38 min
Jun 29, 4:41 AM CDTSevere Thunderstorm Warning Destructive damage threatABRJones, Lyman78 min
Jun 29, 4:55 AM CDTSevere Thunderstorm WarningABRHughes, Jones, Lyman, Stanley50 min
Jun 29, 5:41 AM CDTAreal Flood WarningABRHughes, Stanley3 hr
Jun 29, 5:41 AM CDTSevere Thunderstorm WarningABRBuffalo, Hand, Hughes, Hyde, Lyman64 min
Jun 29, 6:13 AM CDTSevere Thunderstorm Warning Destructive damage threatABRFaulk, Hand, Hughes, Hyde47 min
Jun 29, 6:25 AM CDTSevere Thunderstorm WarningABREdmunds, Faulk, Hyde, Potter, Sully50 min
Jun 29, 6:28 AM CDTSevere Thunderstorm WarningABRHand, Spink47 min
Jun 29, 6:48 AM CDTSevere Thunderstorm Warning Destructive damage threatABRBrown, Edmunds, Faulk, Hand, Hyde, Spink57 min
Jun 29, 7:09 AM CDTSevere Thunderstorm Warning Considerable damage threatABRBrown, Clark, Day, Hand, Spink51 min
Jun 29, 7:39 AM CDTSevere Thunderstorm Warning Destructive damage threatABRBrown, Day, Faulk, Marshall, Spink66 min
Jun 29, 7:42 AM CDTSevere Thunderstorm WarningABRBrown, Edmunds, Faulk, Spink35 min
Jun 29, 7:53 AM CDTSevere Thunderstorm Warning Considerable damage threatABRClark, Day, Marshall, Spink52 min
Jun 29, 7:58 AM CDTTornado WarningABRBrown, Day, Marshall32 min
Jun 29, 8:05 AM CDTTornado WarningABRBrown, Day21 min
Jun 29, 8:15 AM CDTTornado Warning Tornado observedABRDay, Marshall30 min
Jun 29, 8:30 AM CDTSevere Thunderstorm Warning Destructive damage threatABRBrown, Clark, Day, Marshall, Roberts, Spink75 min
Jun 29, 8:41 AM CDTHigh Wind WarningABRBrown, Day, Edmunds, Faulk, McPherson, Marshall and 1 more4 hr
Jun 29, 8:41 AM CDTWind AdvisoryABRBrown, Day, Edmunds, Faulk, McPherson, Marshall and 2 more4 hr
Jun 29, 9:43 AM CDTSpecial Weather StatementABRTraverse32 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2026Every severe thunderstorm warning in 2026

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.