Alert archive / South Dakota / Tornado Warnings in 2022

Tornado Warning 31, NWS Aberdeen, SD

June 20, 2022Codington County, Hamlin County, South Dakota

NWS Aberdeen, SD issued this tornado warning at Jun 20, 2022, 10:06 PM CDT for Codington County, Hamlin County, South Dakota. It was in force for 7 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 20, 2022, 10:06 PM CDT (03:06 UTC)
Expired: Jun 20, 2022, 10:13 PM CDT
In force: 7 min
Issued by: NWS Aberdeen, SD
Area: Storm-based polygon
Tornado: Observed
Hail: 1.0 in

Counties Codington County, SD, Hamlin County, SD

The radar

The Aberdeen radar (KABR), 122 km from the middle of the area, began a volume at 03:07 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.

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 20, 3:36 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 3.1 hours before the alert went out and 92 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: 1239 J/kg
Mixed-layer CIN: -106 J/kg
Mixed-layer LCL: 1359 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 160 m²/s²
0-3 km storm-relative helicity: 271 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 9.8

Open this sounding in Storm Lab

The text

As transmitted.

637 
WFUS53 KABR 210306
TORABR
SDC029-057-210330-
/O.NEW.KABR.TO.W.0031.220621T0306Z-220621T0330Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Aberdeen SD
1006 PM CDT Mon Jun 20 2022

The National Weather Service in Aberdeen has issued a

* Tornado Warning for...
  Northern Hamlin County in northeastern South Dakota...
  South central Codington County in northeastern South Dakota...

* Until 1030 PM CDT.

* At 1005 PM CDT, a confirmed tornado was located over Kellerton
  Church, or 14 miles southwest of Watertown, moving northeast at 35
  mph.

  HAZARD...Damaging tornado and quarter size hail.

  SOURCE...Weather spotters 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.

* The tornado will be near...
  Thomas and Goose Lake around 1015 PM 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 4461 9741 4474 9749 4485 9724 4482 9703
      4469 9697
TIME...MOT...LOC 0305Z 230DEG 30KT 4473 9732 

TORNADO...OBSERVED
MAX HAIL SIZE...1.00 IN

$$

Connelly

1 follow-up statement

160 
WWUS53 KABR 210313
SVSABR

Severe Weather Statement
National Weather Service Aberdeen SD
1013 PM CDT Mon Jun 20 2022

SDC029-057-210323-
/O.CAN.KABR.TO.W.0031.000000T0000Z-220621T0330Z/
Hamlin SD-Codington SD-
1013 PM CDT Mon Jun 20 2022

...THE TORNADO WARNING FOR NORTHERN HAMLIN AND SOUTH CENTRAL
CODINGTON COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.  However gusty winds are
still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
northeastern South Dakota.

LAT...LON 4461 9741 4474 9749 4485 9724 4482 9703
      4469 9697
TIME...MOT...LOC 0310Z 230DEG 30KT 4478 9724 

$$

Connelly

What 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 20, 9:38 PM CDT, 28 minutes earlier.

Area forecast discussion, Jun 20, 9:38 PM CDT, 28 minutes before

Area Forecast Discussion...UPDATED
National Weather Service Aberdeen SD
938 PM CDT Mon Jun 20 2022

.UPDATE...
Issued at 937 PM CDT Mon Jun 20 2022

Storms continue to push off to the north northeast tonight. Cooler
air has moved in so cancelled the heat headlines a little early.
Main threats this evening continue to be strong, gusty winds and
some isolated hail.

UPDATE Issued at 625 PM CDT Mon Jun 20 2022

Made some minor adjustments to hourly pops this evening.
Otherwise, the forecast remains on track with thunderstorms either
developing or moving into much of the region.

&&

.DISCUSSION...
Issued at 215 PM CDT Mon Jun 20 2022

Forecast challenges revolve around severe convective chances this
afternoon through late this evening.

At 2 PM CDT, skies are partly to mostly sunny and temperatures are
warming into the 90s east of the nearly stalled out cold frontal
boundary on stiff south-southwest breezes. West of the front,
winds are out of the northwest and temperatures range from the
low 70s to the upper 80s. The front is positioned currently from
near Fargo North Dakota down to near Ipswich down to near
Chamberlain and on down to around Alliance Nebraska. A periodically
severe storm has been moving north-northeast through Dewey and
Corson counties over the past couple of hours.

The atmosphere is primed for some strong/organized convection.
More than adequate instability and increasingly favorable shear
will support severe thunderstorms by late this afternoon into this
evening. All weather hazard types are possible, although large
hail and damaging winds remain the greatest threats. There have
been more clouds around today than Saturday or Sunday, and this is
likely hampering the warm up today east of the frontal boundary.
That said temperatures across portions of northeast South Dakota
into western Minnesota have still been able to heat up into the
mid to upper 90s, with heat indices beginning to nose up to just
over the century mark. Current heat-related headlines continue,
unchanged into this evening.

Once this front begins to move east tonight, the cooler/drier air
already moving into the western forecast zones will make its way
over into the rest of the CWA, leaving Tuesday through Wednesday
dry days in the forecast, with cooler temperatures closer to
normal expected. The flow pattern aloft is still set to go semi-
zonal through Wednesday night. Then, when the mid-level dirty
ridge starts to build in on Thursday (mid-level WAA), there could
be some elevated convection around heading into Thursday
evening/night. The next cold front that moves through the region
behind this short-lived upper ridging is supposed to come through
sometime between Friday afternoon and Saturday morning. And there
could be some convection accompanying that frontal passage. Warmer
temperatures set up on Thursday into Friday prior to the frontal
passage. Then, temperatures cool back down some for the weekend.

&&

.AVIATION...(For the 00Z TAFS through 00Z Tuesday Evening)
Issued at 625 PM CDT Mon Jun 20 2022

Terminals KABR,KATY,KPIR,KMBG

VFR conditions are expected except in stronger thunderstorms this
evening. Winds will shift to the northwest behind the front and
then become breezy out of the west on Tuesday.

&&

.ABR WATCHES/WARNINGS/ADVISORIES...
SD...None.
MN...None.
&&

UPDATE...Wise
DISCUSSION...Dorn
AVIATION...Wise

Hazardous weather outlook, Jun 20, 4:13 AM CDT, 17 hours 53 minutes before

Hazardous Weather Outlook
National Weather Service Aberdeen SD
413 AM CDT Mon Jun 20 2022

MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-210915-
Traverse-Big Stone-Corson-Campbell-McPherson-Brown-Marshall-Roberts-
Walworth-Edmunds-Day-Dewey-Potter-Faulk-Spink-Clark-Codington-Grant-
Hamlin-Deuel-Stanley-Sully-Hughes-Hyde-Hand-Jones-Lyman-Buffalo-
413 AM CDT Mon Jun 20 2022 /313 AM MDT Mon Jun 20 2022/

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

.DAY ONE...Today and tonight.

Excessive Heat Warnings and Heat Advisories are in effect today and
this evening for areas along and east of the James River Valley,
where heat indices will exceed 100 to 105 degrees.

Thunderstorms will develop across central South Dakota late this
afternoon, then will track eastward during the evening hours. Strong
to severe storms are possible, with large hail and strong wind gusts
being the main threats.

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

Hazardous weather is not expected at this time.

.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
Twitter feed.

Parkin

In the hours before

Local storm report, Jun 20, 9:40 PM CDT, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
940 PM CDT MON JUN 20 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0931 PM     TSTM WND GST     ABERDEEN REGIONAL AIRPO 45.45N 98.42W
06/20/2022  M67 MPH          BROWN              SD   ASOS

&&

RV

Local storm report, Jun 20, 9:55 PM CDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
955 PM CDT MON JUN 20 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0950 PM     TSTM WND GST     VIENNA                  44.70N 97.50W
06/20/2022  E60 MPH          CLARK              SD   TRAINED SPOTTER

&&

RV

Local storm report, Jun 20, 9:58 PM CDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
958 PM CDT MON JUN 20 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0946 PM     TSTM WND GST     2 S LILY                45.15N 97.68W
06/20/2022  M62 MPH          DAY                SD   PUBLIC

&&

KS

Local storm report, Jun 20, 10:00 PM CDT, 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
1000 PM CDT MON JUN 20 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0958 PM     TORNADO          BRYANT                  44.59N 97.47W
06/20/2022                   HAMLIN             SD   STORM CHASER

&&

RV

Local storm report, Jun 20, 10:04 PM CDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
1004 PM CDT MON JUN 20 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0933 PM     TSTM WND GST     1 W RICHMOND LAKE REC A 45.54N 98.64W
06/20/2022  E70 MPH          BROWN              SD   NWS EMPLOYEE

&&

KS

Local storm report, Jun 20, 10:05 PM CDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
1005 PM CDT MON JUN 20 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1000 PM     HAIL             7 SSE WEBSTER           45.26N 97.45W
06/20/2022  M1.00 INCH       DAY                SD   TRAINED SPOTTER

&&

RV

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 7:03 PM CDT	Severe Thunderstorm Warning Destructive damage threat	ABR	Hughes, Jones, Lyman, Stanley, Sully	42 min
Jun 20, 7:11 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ABR	Hughes, Jones, Lyman, Stanley	49 min
Jun 20, 7:33 PM CDT	Severe Thunderstorm Warning Destructive damage threat	ABR	Hughes, Hyde, Lyman, Stanley, Sully	42 min
Jun 20, 8:02 PM CDT	Special Weather Statement	ABR	Hamlin	28 min
Jun 20, 8:07 PM CDT	Severe Thunderstorm Warning Destructive damage threat	ABR	Faulk, Hand, Hughes, Hyde, Potter, Sully	38 min
Jun 20, 8:18 PM CDT	Severe Thunderstorm Warning	ABR	Deuel	21 min
Jun 20, 8:34 PM CDT	Severe Thunderstorm Warning Destructive damage threat	ABR	Brown, Edmunds, Faulk, Hand, Hyde, Potter and 1 more	56 min
Jun 20, 8:37 PM CDT	Severe Thunderstorm Warning	ABR	Hand, Spink	38 min
Jun 20, 9:05 PM CDT	Severe Thunderstorm Warning Destructive damage threat	ABR	Brown, Edmunds, Faulk, McPherson, Spink	55 min
Jun 20, 9:30 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Clark, Day, Spink	30 min
Jun 20, 9:44 PM CDT	Tornado Warning Tornado observed	ABR	Clark, Hamlin	31 min
Jun 20, 9:48 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ABR	Brown, Day, Marshall	23 min
Jun 20, 9:56 PM CDT	Severe Thunderstorm Warning	ABR	Clark, Codington, Day, Deuel, Grant, Hamlin and 2 more	49 min
Jun 20, 10:20 PM CDT	Severe Thunderstorm Warning	ABR	Codington, Day, Deuel, Grant, Hamlin, Marshall and 1 more	40 min
Jun 20, 10:58 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ABR	Roberts	21 min

Nearby

Tornado Warnings in South Dakota, 2022 Every tornado warning in 2022 Tornadoes in 2022

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.