Alert archive / South Dakota / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 59, NWS Aberdeen, SD

June 6, 20184 counties in South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jun 6, 2018, 1:24 AM CDT for 4 counties in South Dakota. It was in force for 51 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 6, 2018, 1:24 AM CDT (06:24 UTC)
Expired
Jun 6, 2018, 2:15 AM CDT
In force
51 min
Issued by
NWS Aberdeen, SD
Area
Storm-based polygon
Hail
0.75 in
Wind
70.0 mph

Counties Day County, SD, Grant County, SD, Marshall County, SD, Roberts County, SD

The radar

The Aberdeen radar (KABR), 92 km from the middle of the area, began a volume at 06:24 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 5, 9:07 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 6.4 hours before the alert went out and 112 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, Aberdeen, SD at 00:00Z on 2018-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1161 joules per kilogram.LCLLFCEL10008507005003002001001 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, Aberdeen, SD at 00:00Z on 2018-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 square meters per square second.193958Sfc1 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
1161 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
3172 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
123 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

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 6, 12:39 AM CDT, 45 minutes earlier.

Area forecast discussion, Jun 6, 12:39 AM CDT, 45 minutes before
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Hazardous weather outlook, Jun 5, 4:29 AM CDT, 20 hours 55 minutes before
Hazardous Weather Outlook
National Weather Service Aberdeen SD
429 AM CDT Tue Jun 5 2018

MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-060930-
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-
429 AM CDT Tue Jun 5 2018 /329 AM MDT Tue Jun 5 2018/

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

.DAY ONE...Today and Tonight

Strong to severe thunderstorms are possible tonight, mainly for
locations along the North Dakota, South Dakota border and western
Minnesota. Hail and damaging winds will be the main threats.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Additional thunderstorm chances exist across the area Wednesday
through Saturday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed after 5 PM, CDT through tonight.

SD

In the hours before

Local storm report, Jun 5, 11:33 PM CDT, 1 hour 51 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
1133 PM CDT TUE JUN 5 2018

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

1130 PM     TSTM WND GST     GETTYSBURG              45.00N 99.96W
06/05/2018  M68 MPH          POTTER             SD   MESONET

&&

DYE
Local storm report, Jun 5, 11:54 PM CDT, 1 hour 30 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
1154 PM CDT TUE JUN 5 2018

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

1146 PM     TSTM WND GST     PIERRE                  44.38N 100.32W
06/05/2018  E71 MPH          HUGHES             SD   ASOS

&&

DYE
Local storm report, Jun 6, 12:07 AM CDT, 1 hour 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
1207 AM CDT WED JUN 6 2018

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

1203 AM     TSTM WND GST     1 E ONAKA               45.19N 99.44W
06/06/2018  E60 MPH          FAULK              SD   MESONET

&&

DYE
Local storm report, Jun 6, 12:15 AM CDT, 1 hour 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
1215 AM CDT WED JUN 6 2018

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

1205 AM     TSTM WND GST     BRENTWOOD COLONY        45.12N 99.31W
06/06/2018  E70 MPH          FAULK              SD   MESONET

&&

DYE
Special weather statement, Jun 6, 12:16 AM CDT, 1 hour 8 minutes before
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Local storm report, Jun 6, 12:54 AM CDT, 30 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 5, 9:38 PM CDTSevere Thunderstorm WarningABRCorson37 min
Jun 5, 9:54 PM CDTSpecial Weather StatementABRCorson51 min
Jun 5, 10:04 PM CDTSevere Thunderstorm WarningABRCorson, Dewey41 min
Jun 5, 10:11 PM CDTSevere Thunderstorm WarningABRDewey49 min
Jun 5, 10:54 PM CDTSevere Thunderstorm WarningABRDewey, Potter, Walworth51 min
Jun 5, 11:21 PM CDTSevere Thunderstorm WarningABRCampbell, Corson, Dewey, Walworth39 min
Jun 5, 11:30 PM CDTSevere Thunderstorm WarningABRCampbell, Dewey, Edmunds, Faulk, McPherson, Potter and 1 more45 min
Jun 5, 11:56 PM CDTSevere Thunderstorm WarningABREdmunds, Faulk, Potter49 min
Jun 6, 12:21 AM CDTSevere Thunderstorm WarningABRBrown, Edmunds, Faulk, McPherson, Spink39 min
Jun 6, 12:32 AM CDTHigh Wind WarningABRBuffalo, Hand, Hughes, Hyde, Jones, Lyman and 2 more3 hr
Jun 6, 1:01 AM CDTSevere Thunderstorm WarningABRBrown, Edmunds, McPherson12 min
Jun 6, 1:49 AM CDTSevere Thunderstorm WarningABRGrant, Roberts41 min
Jun 6, 1:53 AM CDTSevere Thunderstorm WarningABRCodington, Day, Deuel, Grant, Hamlin, Roberts52 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2018Every severe thunderstorm warning in 2018

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.