Alert archive / South Dakota / Tornado Warnings in 2026
Tornado Warning 5, NWS Aberdeen, SD
NWS Aberdeen, SD issued this tornado warning at Jun 29, 2026, 8:15 AM CDT for Day County, Marshall County, South Dakota. It was in force for 30 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 29, 2026, 8:15 AM CDT (13:15 UTC)
- Expired
- Jun 29, 2026, 8:45 AM CDT
- In force
- 30 min
- Issued by
- NWS Aberdeen, SD
- Area
- Storm-based polygon
- Tornado
- Observed
- Hail
- 1.75 in
Counties Day County, SD, Marshall County, SD
The radar
The Aberdeen radar (KABR), 55 km from the middle of the area, began a volume at 13:14 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 29, 8:44 AM CDT | TSTM WND GST 54 | 4 Nw Roy Lake State Par, SD | Davis weather station. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this tornado warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
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
Minneapolis, MN (KMPX), launched 12:00Z, 1.3 hours before the alert went out and 333 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.
- Mixed-layer CAPE
- 4091 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 703 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 220 m²/s²
- 0-3 km storm-relative helicity
- 285 m²/s²
- Significant tornado parameter
- 3.3
- Supercell composite
- 20.3
The text
As transmitted.
743
WFUS53 KABR 291315
TORABR
SDC037-091-291345-
/O.NEW.KABR.TO.W.0005.260629T1315Z-260629T1345Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Aberdeen SD
815 AM CDT Mon Jun 29 2026
The National Weather Service in Aberdeen has issued a
* Tornado Warning for...
Northwestern Day County in northeastern South Dakota...
Southern Marshall County in northeastern South Dakota...
* Until 845 AM CDT.
* At 815 AM CDT, a confirmed tornado was located near Pierpont, or
near Langford, moving northeast at 55 mph.
HAZARD...Damaging tornado and golf ball size hail.
SOURCE...Public confirmed tornado. A rain wrapped tornado was
reported 1 miles south of Andover.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* The tornado will be near...
Langford around 820 AM CDT.
Cattail Lake and Fort Sisseton State Park around 825 AM CDT.
Roy Lake Rec Area around 830 AM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
&&
LAT...LON 4540 9779 4545 9795 4584 9774 4577 9734
TIME...MOT...LOC 1315Z 213DEG 47KT 4553 9776
TORNADO...OBSERVED
MAX HAIL SIZE...1.75 IN
$$
062 follow-up statements
232
WWUS53 KABR 291322
SVSABR
Severe Weather Statement
National Weather Service Aberdeen SD
822 AM CDT Mon Jun 29 2026
SDC037-091-291345-
/O.CON.KABR.TO.W.0005.000000T0000Z-260629T1345Z/
Day SD-Marshall SD-
822 AM CDT Mon Jun 29 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 AM CDT FOR
NORTHWESTERN DAY AND SOUTHERN MARSHALL COUNTIES...
At 821 AM CDT, a confirmed tornado was located near Langford, moving
northeast at 40 mph.
HAZARD...Damaging tornado and ping pong ball size hail.
SOURCE...Emergency management confirmed tornado. A tornado was
reported in the Pierpont area.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornadic thunderstorm will remain over mainly rural areas of
northwestern Day and southern Marshall Counties.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
&&
LAT...LON 4548 9774 4553 9790 4584 9774 4577 9734
TIME...MOT...LOC 1321Z 205DEG 36KT 4558 9773
TORNADO...OBSERVED
MAX HAIL SIZE...1.50 IN
$$
06267
WWUS53 KABR 291335
SVSABR
Severe Weather Statement
National Weather Service Aberdeen SD
835 AM CDT Mon Jun 29 2026
SDC037-291345-
/O.CAN.KABR.TO.W.0005.000000T0000Z-260629T1345Z/
Day SD-
835 AM CDT Mon Jun 29 2026
...THE TORNADO WARNING FOR NORTHWESTERN DAY COUNTY IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled. A
Severe Thunderstorm Warning remains in effect.
A Severe Thunderstorm Watch remains in effect until noon CDT for
northeastern South Dakota.
&&
LAT...LON 4577 9734 4558 9761 4559 9776 4560 9786
4584 9774
TIME...MOT...LOC 1335Z 212DEG 47KT 4572 9757
$$
SDC091-291345-
/O.CON.KABR.TO.W.0005.000000T0000Z-260629T1345Z/
Marshall SD-
835 AM CDT Mon Jun 29 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 AM CDT FOR SOUTHERN
MARSHALL COUNTY...
At 835 AM CDT, a confirmed tornado was located near Fort Sisseton
State Park, or 10 miles southeast of Britton, moving northeast at 55
mph.
HAZARD...Damaging tornado and ping pong ball size hail.
SOURCE...Emergency management confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Britton, Langford, Lake City, Fort Sisseton State Park, Roy Lake Rec
Area, and Cattail Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
&&
LAT...LON 4577 9734 4558 9761 4559 9776 4560 9786
4584 9774
TIME...MOT...LOC 1335Z 212DEG 47KT 4572 9757
TORNADO...OBSERVED
MAX HAIL SIZE...1.50 IN
$$
06What forecasters said that day
The local office's own words before this tornado 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 tornado warning went out at Jun 29, 6:25 AM CDT, 1 hour 50 minutes earlier. Its key messages:
- There is a Slight (2 of 5) to Marginal Risk (1 of 5) for severe weather into the morning across the central/portions of northeastern SD. Main hazards are 90 mph winds and large hail. Additionally, the development of a tornado or two cannot be ruled out. -There is a Marginal Risk (1 of 5) for severe weather this afternoon into the evening across the far eastern edge of the forecast area. Main hazards are large hail up to 1 inch in diameter and wind gusts of 60 mph.
- Western U.S. wildfire smoke (aloft) will be over the region through Tuesday; potentially longer depending on how steering flow winds evolve this week. Some minor concentrations of near surface smoke could happen from Monday afternoon through Monday night.
- A Heat Advisory has been issued as temperatures are expected to warm into the 90s, with dewpoints in the 70s, across far northeast South Dakota and west central Minnesota today. Heat index temperatures will be up into the 100F to 107F degree range for several hours this afternoon.
- Above normal temperatures are expected to persist for most of this week. With highs in the upper 80s to mid 90s and dewpoints well into the 60s, and even 70s for some locations, especially from Thursday onward, heat-related illnesses become a concern.
Area forecast discussion, Jun 29, 6:25 AM CDT, 1 hour 50 minutes before
Area Forecast Discussion
National Weather Service Aberdeen SD
625 AM CDT Mon Jun 29 2026
.KEY MESSAGES...
- There is a Slight (2 of 5) to Marginal Risk (1 of 5) for severe
weather into the morning across the central/portions of northeastern
SD. Main hazards are 90 mph winds and large hail. Additionally, the
development of a tornado or two cannot be ruled out.
-There is a Marginal Risk (1 of 5) for severe weather this afternoon
into the evening across the far eastern edge of the forecast area.
Main hazards are large hail up to 1 inch in diameter and wind gusts
of 60 mph.
- Western U.S. wildfire smoke (aloft) will be over the region
through Tuesday; potentially longer depending on how steering flow
winds evolve this week. Some minor concentrations of near surface
smoke could happen from Monday afternoon through Monday night.
- A Heat Advisory has been issued as temperatures are expected to
warm into the 90s, with dewpoints in the 70s, across far northeast
South Dakota and west central Minnesota today. Heat index
temperatures will be up into the 100F to 107F degree range for
several hours this afternoon.
- Above normal temperatures are expected to persist for most of this
week. With highs in the upper 80s to mid 90s and dewpoints well into
the 60s, and even 70s for some locations, especially from Thursday
onward, heat-related illnesses become a concern.
&&
.UPDATE...
Issued at 618 AM CDT Mon Jun 29 2026
Thunderstorm producing high winds in central South Dakota
continues to lift northeast with the watch expanded in response.
Otherwise fog continues across the area. Will reduce counties in
the advisory as fog clears post convection.
See below for an update to the aviation discussion...
&&
.DISCUSSION...
Issued at 1234 AM CDT Mon Jun 29 2026
Storms are still forecast to move into central SD early this morning
and move northeast into portions of northeastern SD. Models have
continued to show these storms becoming high wind producing storms
with 90 mph winds possible as the main hazard. At the same time,
there is still the threat for large hail. This will continue into
the morning until these storms move out or dissipate by mid-morning.
A surface low will be pushing into SD today as it moves to the
northeast. Lots of warm, moist air will be pushing into northeastern
SD and MN through the day. This will help with the development of
storms over eastern SD into MN during the afternoon and evening as a
cold front pushes into an environment with a lot of instability and
shear. The high-res models are showing some storms developing during
the late afternoon moving east and really taking off during the
evening east of the area in MN. While most of the threat is to the
east, there is still a marginal risk (level 1 of 5) for severe
storms to develop. These storms could have hail of an inch in
diameter and wind gusts up to 60mph. While the main threat for
severe storms during the afternoon is over eastern SD, there could
be some scattered showers and storms that develop over north central
SD during the afternoon from energy that has wrapped around the
surface low. These storms could have hail up to an inch and winds up
to 60 mph as well.
There will be warm temperatures today over northeastern SD, with
highs in the 90s and heat index values in the upper 90s to low 100s.
A heat advisory has been issued for areas over and east of the
Prairie Coteau due to these warm temperatures. The hot temperatures
and high humidity may cause heat related illnesses in sensitive
populations and those working outside. Additionally, with upper-
level winds from the south, wildfire smoke will continue to move in
aloft over central and northeastern SD today. This smoke will most
likely stay aloft and not get to the surface, which will cause some
smokey and hazy skies.
As the surface low sits to the north, a stationary front will be
sitting over southeastern SD into MN. This will keep some slightly
cooler temperatures in the area and precipitation from forming
during the day Tuesday. This front will likely start to develop some
storms and showers during the late evening into the overnight hours
which are forecast to slowly move north into central and
northeastern SD. This will lead to a threat for storms overnight
Tuesday into the day Wednesday. Warm air will then slowly move back
into central and northeastern SD during the later part of the work
week, which will start to warm temperatures again.
&&
.AVIATION /12Z TAFS THROUGH 12Z TUESDAY/...
Issued at 618 AM CDT Mon Jun 29 2026
Terminals KABR,KATY,KPIR,KMBG
A mix of VFR/MVFR in fog for KABR/KATY/KMBG. We are seeing
visibility improve once convection rolls through. A cluster of
storms which has just glanced KPIR is headed towards KABR and
could expand far enough east to impact KATY though with less
certainty. High winds have been accompanying this thunderstorm
cluster.
&&
.ABR WATCHES/WARNINGS/ADVISORIES...
SD...Heat Advisory from noon today to 8 PM CDT this evening for
SDZ008-020>023.
Dense Fog Advisory until 9 AM CDT this morning for SDZ004>011-
016>023-036-037.
MN...Heat Advisory from noon today to 8 PM CDT this evening for
MNZ039-046.
&&
UPDATE...07
DISCUSSION...12
AVIATION...07Hazardous weather outlook, Jun 29, 3:12 AM CDT, 5 hours 3 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
Local storm report, Jun 29, 7:29 AM CDT, 46 minutes before
Preliminary Local Storm Report
National Weather Service Aberdeen SD
729 AM CDT Mon Jun 29 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0721 AM Tstm Wnd Gst 5 NW Redfield 44.93N 98.60W
06/29/2026 M84 MPH Spink SD Mesonet
Ambient Weather Station.
&&
SRFLocal storm report, Jun 29, 7:44 AM CDT, 31 minutes before
Preliminary Local Storm Report
National Weather Service Aberdeen SD
744 AM CDT Mon Jun 29 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0721 AM Tstm Wnd Gst 4 S Athol 44.96N 98.60W
06/29/2026 M58 MPH Spink SD Mesonet
Ambient Weather Station.
&&
SRFLocal storm report, Jun 29, 7:52 AM CDT, 23 minutes before
Preliminary Local Storm Report
National Weather Service Aberdeen SD
752 AM CDT Mon Jun 29 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0745 AM Tstm Wnd Gst 6 SW Stratford 45.26N 98.40W
06/29/2026 M64 MPH Brown SD Mesonet
Ambient Weather Station.
&&
SRFLocal storm report, Jun 29, 7:53 AM CDT, 22 minutes before
Preliminary Local Storm Report
National Weather Service Aberdeen SD
753 AM CDT Mon Jun 29 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0720 AM Tstm Wnd Gst 2 W Redfield 44.87N 98.57W
06/29/2026 M56 MPH Spink SD Public
Ambient Weather Station.
&&Local storm report, Jun 29, 8:07 AM CDT, 8 minutes before
Preliminary Local Storm Report
National Weather Service Aberdeen SD
807 AM CDT Mon Jun 29 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0804 AM Hail Groton 45.45N 98.10W
06/29/2026 M1.00 Inch Brown SD Emergency Mngr
&&
SRFLocal storm report, Jun 29, 8:14 AM CDT, 1 minute before
Preliminary Local Storm Report
National Weather Service Aberdeen SD
814 AM CDT Mon Jun 29 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0801 AM Tornado 1 S Andover 45.40N 97.90W
06/29/2026 Day SD Dept of Highways
Tornado observed and quickly became rain
wrapped.
&&
SRFThe 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 | 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 | 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, 6:13 AM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hand, Hughes, Hyde | 47 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 | ABR | Brown, Edmunds, Faulk, Hand, Hyde, Spink | 57 min |
| Jun 29, 7:09 AM CDT | Severe Thunderstorm Warning | ABR | Brown, Clark, Day, Hand, Spink | 51 min |
| Jun 29, 7:39 AM CDT | Severe Thunderstorm Warning | 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 | 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, 8:30 AM CDT | Severe Thunderstorm Warning | 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 |
Nearby
Tornado Warnings in South Dakota, 2026Every tornado warning in 2026Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.