Alert archive / South Dakota / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 91, NWS Aberdeen, SD

June 29, 20264 counties in South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jun 29, 2026, 6:13 AM CDT for 4 counties in South Dakota. It was in force for 47 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, 6:13 AM CDT (11:13 UTC)
Expired: Jun 29, 2026, 7:00 AM CDT
In force: 47 min
Issued by: NWS Aberdeen, SD
Area: Storm-based polygon
Damage threat: Destructive
Hail: 2.0 in
Wind: 100.0 mph

Counties Faulk County, SD, Hand County, SD, Hughes County, SD, Hyde County, SD

The radar

The Aberdeen radar (KABR), 120 km from the middle of the area, began a volume at 11:12 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
Jun 29, 5:58 AM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 11.2 hours before the alert went out and 257 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1494 J/kg
Mixed-layer CIN: -76 J/kg
Mixed-layer LCL: 1467 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 12 m²/s²
0-3 km storm-relative helicity: 92 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.4

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, 4 hours 2 minutes earlier.

Area forecast discussion, Jun 29, 2:11 AM CDT, 4 hours 2 minutes before

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Hazardous weather outlook, Jun 29, 3:12 AM CDT, 3 hours 1 minute 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

Local storm report, Jun 29, 5:03 AM CDT, 1 hour 10 minutes before

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Local storm report, Jun 29, 5:22 AM CDT, 51 minutes before

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Local storm report, Jun 29, 5:28 AM CDT, 45 minutes before

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Local storm report, Jun 29, 5:52 AM CDT, 21 minutes before

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Local storm report, Jun 29, 5:58 AM CDT, 15 minutes before

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Local storm report, Jun 29, 6:02 AM CDT, 11 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 2:07 AM CDT	Dense Fog Advisory	ABR	Brown, Campbell, Clark, Codington, Day, Deuel and 12 more	5 hr
Jun 29, 3:04 AM CDT	Special Weather Statement	ABR	Dewey	26 min
Jun 29, 3:29 AM CDT	Special Weather Statement	ABR	Dewey	31 min
Jun 29, 3:43 AM CDT	Special Weather Statement	ABR	Jones	32 min
Jun 29, 3:52 AM CDT	Severe Thunderstorm Warning	ABR	Jones, Stanley	38 min
Jun 29, 4:22 AM CDT	Severe Thunderstorm Warning	ABR	Jones, Lyman	38 min
Jun 29, 4:41 AM CDT	Severe Thunderstorm Warning Destructive damage threat	ABR	Jones, Lyman	78 min
Jun 29, 4:55 AM CDT	Severe Thunderstorm Warning	ABR	Hughes, Jones, Lyman, Stanley	50 min
Jun 29, 5:36 AM CDT	Severe Thunderstorm Warning Considerable damage threat	ABR	Hand, Hughes, Hyde, Lyman, Stanley, Sully	54 min
Jun 29, 5:41 AM CDT	Areal Flood Warning	ABR	Hughes, Stanley	3 hr
Jun 29, 5:41 AM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hand, Hughes, Hyde, Lyman	64 min
Jun 29, 6:25 AM CDT	Severe Thunderstorm Warning	ABR	Edmunds, Faulk, Hyde, Potter, Sully	50 min
Jun 29, 6:28 AM CDT	Severe Thunderstorm Warning	ABR	Hand, Spink	47 min
Jun 29, 6:48 AM CDT	Severe Thunderstorm Warning Destructive damage threat	ABR	Brown, Edmunds, Faulk, Hand, Hyde, Spink	57 min
Jun 29, 7:09 AM CDT	Severe Thunderstorm Warning Considerable damage threat	ABR	Brown, Clark, Day, Hand, Spink	51 min
Jun 29, 7:39 AM CDT	Severe Thunderstorm Warning Destructive damage threat	ABR	Brown, Day, Faulk, Marshall, Spink	66 min
Jun 29, 7:42 AM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, Faulk, Spink	35 min
Jun 29, 7:53 AM CDT	Severe Thunderstorm Warning Considerable damage threat	ABR	Clark, Day, Marshall, Spink	52 min
Jun 29, 7:58 AM CDT	Tornado Warning	ABR	Brown, Day, Marshall	32 min
Jun 29, 8:05 AM CDT	Tornado Warning	ABR	Brown, Day	21 min
Jun 29, 8:15 AM CDT	Tornado Warning Tornado observed	ABR	Day, Marshall	30 min
Jun 29, 8:30 AM CDT	Severe Thunderstorm Warning Destructive damage threat	ABR	Brown, Clark, Day, Marshall, Roberts, Spink	75 min
Jun 29, 8:41 AM CDT	High Wind Warning	ABR	Brown, Day, Edmunds, Faulk, McPherson, Marshall and 1 more	4 hr
Jun 29, 8:41 AM CDT	Wind Advisory	ABR	Brown, Day, Edmunds, Faulk, McPherson, Marshall and 2 more	4 hr
Jun 29, 9:43 AM CDT	Special Weather Statement	ABR	Traverse	32 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2026 Every 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.