Alert archive / South Dakota / Special Weather Statements in 2022

Special Weather Statement, NWS Aberdeen, SD

June 20, 2022Dewey County, South Dakota

NWS Aberdeen, SD issued this special weather statement at Jun 20, 2022, 11:19 AM MDT for Dewey County, South Dakota. It was in force for 26 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, 11:19 AM MDT (17:19 UTC)
Expired: Jun 20, 2022, 11:45 AM MDT
In force: 26 min
Issued by: NWS Aberdeen, SD
Hail: 0.88 in
Wind: 55

County Dewey County, SD

The radar

The Rapid City radar (KUDX), 158 km from the middle of the area, began a volume at 17:22 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

Rapid City, SD (KUNR), launched 12:00Z, 5.3 hours before the alert went out and 165 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: 7 J/kg
Mixed-layer CIN: -379 J/kg
Mixed-layer LCL: 1196 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 21 m²/s²
0-3 km storm-relative helicity: 38 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jun 20, 10:33 AM MDT, 46 minutes earlier.

Area forecast discussion, Jun 20, 10:33 AM MDT, 46 minutes before

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Hazardous weather outlook, Jun 20, 3:13 AM MDT, 8 hours 6 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, 8:15 AM MDT, 3 hours 4 minutes before

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Local storm report, Jun 20, 8:54 AM MDT, 2 hours 25 minutes before

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Local storm report, Jun 20, 9:07 AM MDT, 2 hours 12 minutes before

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Local storm report, Jun 20, 9:19 AM MDT, 2 hours before

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Local storm report, Jun 20, 9:22 AM MDT, 1 hour 57 minutes before

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Special weather statement, Jun 20, 11:19 AM MDT, 0 minutes before

Special Weather Statement
National Weather Service Aberdeen SD
1119 AM MDT Mon Jun 20 2022

SDZ015-201745-
Dewey SD-
1119 AM MDT Mon Jun 20 2022

...A strong thunderstorm will impact portions of west central Dewey
County through 1145 AM MDT...

At 1119 AM MDT, Doppler radar was tracking a strong thunderstorm near
Lantry, moving northeast at 30 mph.

HAZARD...Wind gusts of 50 to 55 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This strong thunderstorm will be near...
  Lantry and Bear Creek around 1125 AM MDT.
  Eagle Butte and South Eagle Butte around 1135 AM MDT.

Other locations in the path of this storm include Green Grass.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4504 10148 4511 10149 4529 10122 4502 10095
      4496 10114 4499 10114 4499 10150 4503 10150
TIME...MOT...LOC 1719Z 232DEG 28KT 4499 10148

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...55 MPH

Serr

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 6:02 PM MDT	Special Weather Statement	ABR	Dewey	28 min
Jun 19, 6:29 PM MDT	Special Weather Statement	ABR	Dewey	31 min
Jun 19, 7:03 PM MDT	Special Weather Statement	ABR	Walworth	42 min
Jun 19, 7:12 PM MDT	Severe Thunderstorm Warning	ABR	Campbell, Corson, Dewey, Walworth	48 min
Jun 19, 8:45 PM MDT	Severe Thunderstorm Warning	ABR	Campbell, Corson, Dewey, Potter, Walworth	45 min
Jun 19, 9:15 PM MDT	Severe Thunderstorm Warning	ABR	Campbell, McPherson, Walworth	45 min
Jun 20, 11:28 AM MDT	Severe Thunderstorm Warning	ABR	Dewey	34 min
Jun 20, 11:52 AM MDT	Severe Thunderstorm Warning	ABR	Corson, Dewey	38 min
Jun 20, 1:07 PM MDT	Severe Thunderstorm Warning	ABR	Campbell, Corson	38 min
Jun 20, 3:26 PM MDT	Tornado Warning	ABR	McPherson	23 min
Jun 20, 5:31 PM MDT	Severe Thunderstorm Warning Considerable damage threat	ABR	Jones, Stanley	44 min
Jun 20, 5:39 PM MDT	Tornado Warning	ABR	Jones	25 min
Jun 20, 5:50 PM MDT	Tornado Warning	ABR	Jones, Stanley	25 min
Jun 20, 5:57 PM MDT	Tornado Warning	ABR	Jones, Lyman	33 min
Jun 20, 4:46 PM MDT	Severe Thunderstorm Warning	ABR	Traverse	26 min

Nearby

Special Weather Statements in South Dakota, 2022 Every special weather statement 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.