Alert archive / South Dakota / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 139, NWS Aberdeen, SD

August 28, 2013Clark County, Hamlin County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Aug 28, 2013, 7:25 AM CDT for Clark County, Hamlin County, South Dakota. It was in force for 50 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
Aug 28, 2013, 7:25 AM CDT (12:25 UTC)
Expired
Aug 28, 2013, 8:15 AM CDT
In force
50 min
Issued by
NWS Aberdeen, SD
Area
Storm-based polygon
Hail
1.0 in
Wind
70.0 mph

Counties Clark County, SD, Hamlin County, SD

The radar

The Aberdeen radar (KABR), 107 km from the middle of the area, began a volume at 12:27 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

Minneapolis, MN (KMPX), launched 12:00Z, 0.4 hours before the alert went out and 305 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, Minneapolis, MN at 12:00Z on 2013-08-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 396 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, Minneapolis, MN at 12:00Z on 2013-08-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -28 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
396 J/kg
Mixed-layer CIN
-307 J/kg
Mixed-layer LCL
1215 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
-28 m²/s²
0-3 km storm-relative helicity
22 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.3

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 Aug 28, 6:25 AM CDT, 1 hour earlier.

Area forecast discussion, Aug 28, 6:25 AM CDT, 1 hour before
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Hazardous weather outlook, Aug 28, 4:24 AM CDT, 3 hours 1 minute before
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In the hours before

Local storm report, Aug 28, 4:15 AM CDT, 3 hours 10 minutes before
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Local storm report, Aug 28, 4:31 AM CDT, 2 hours 54 minutes before
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Local storm report, Aug 28, 7:16 AM CDT, 9 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 27, 7:12 PM CDTSevere Thunderstorm WarningABRCorson48 min
Aug 27, 8:16 PM CDTSevere Thunderstorm WarningABRDewey59 min
Aug 27, 9:19 PM CDTSevere Thunderstorm WarningABRDewey56 min
Aug 27, 9:23 PM CDTSevere Thunderstorm WarningABRCorson52 min
Aug 27, 10:14 PM CDTSevere Thunderstorm WarningABRDewey, Potter61 min
Aug 27, 10:25 PM CDTSevere Thunderstorm WarningABRCorson, Dewey50 min
Aug 27, 11:39 PM CDTSevere Thunderstorm WarningABRCorson, Dewey51 min
Aug 28, 12:23 AM CDTSevere Thunderstorm WarningABRCorson, Dewey67 min
Aug 28, 1:08 AM CDTSevere Thunderstorm WarningABRCorson, Dewey, Walworth52 min
Aug 28, 1:21 AM CDTSevere Thunderstorm WarningABRDewey39 min
Aug 28, 2:02 AM CDTSevere Thunderstorm WarningABRDewey58 min
Aug 28, 2:11 AM CDTSevere Thunderstorm WarningABRDewey64 min
Aug 28, 2:37 AM CDTHeat AdvisoryABRBrown, Buffalo, Campbell, Clark, Codington, Corson and 20 more16 hr
Aug 28, 2:54 AM CDTSevere Thunderstorm WarningABRDewey51 min
Aug 28, 3:00 AM CDTSevere Thunderstorm WarningABRDewey60 min
Aug 28, 3:41 AM CDTSevere Thunderstorm WarningABRDewey, Potter, Walworth64 min
Aug 28, 4:33 AM CDTSevere Thunderstorm WarningABREdmunds, Faulk, Hand, Hyde, Potter, Sully57 min
Aug 28, 5:29 AM CDTSevere Thunderstorm WarningABRFaulk, Hand, Hyde46 min
Aug 28, 6:39 AM CDTSevere Thunderstorm WarningABRClark, Spink51 min
Aug 28, 2:37 PM CDTHeat AdvisoryABRBrown, Buffalo, Campbell, Clark, Codington, Corson and 20 more28 hr

Nearby

Severe Thunderstorm Warnings in South Dakota, 2013Every severe thunderstorm warning in 2013

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.