Alert archive / South Dakota / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 43, NWS Aberdeen, SD

May 28, 2004Sully County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at May 28, 2004, 9:41 PM CDT for Sully County, South Dakota. It was in force for 34 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: May 28, 2004, 9:41 PM CDT (02:41 UTC)
Expired: May 28, 2004, 10:15 PM CDT
In force: 34 min
Issued by: NWS Aberdeen, SD
Area: Counties, with a storm outline in the text

County Sully County, SD

The radar

The Aberdeen radar (KABR), 158 km from the middle of the area, began a volume at 02:41 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.

Issued	Product	Office	Lasted
May 28, 3:45 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 2.7 hours before the alert went out and 138 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: 48 J/kg
Mixed-layer CIN: -105 J/kg
Mixed-layer LCL: 1790 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 46 m²/s²
0-3 km storm-relative helicity: 242 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

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 May 28, 3:04 PM CDT, 6 hours 37 minutes earlier.

Area forecast discussion, May 28, 3:04 PM CDT, 6 hours 37 minutes before

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Hazardous weather outlook, May 28, 5:30 AM CDT, 16 hours 11 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 29, 3:37 PM CDT	Severe Thunderstorm Warning	ABR	Brown	53 min
May 29, 4:45 PM CDT	Severe Thunderstorm Warning	ABR	Brown	60 min
May 29, 5:29 PM CDT	Flash Flood Warning	ABR	Brown	3 hr
May 29, 5:43 PM CDT	Severe Thunderstorm Warning	ABR	Brown	62 min
May 29, 5:52 PM CDT	Tornado Warning	ABR	Brown	38 min
May 29, 6:04 PM CDT	Severe Thunderstorm Warning	ABR	Codington, Hamlin	41 min
May 29, 6:23 PM CDT	Tornado Warning	ABR	Edmunds	37 min
May 29, 6:27 PM CDT	Tornado Warning	ABR	Brown	33 min
May 29, 6:33 PM CDT	Tornado Warning	ABR	McPherson	27 min
May 29, 6:34 PM CDT	Severe Thunderstorm Warning	ABR	Grant	26 min
May 29, 6:35 PM CDT	Severe Thunderstorm Warning	ABR	Corson	55 min
May 29, 6:36 PM CDT	Severe Thunderstorm Warning	ABR	Dewey	54 min
May 29, 6:44 PM CDT	Severe Thunderstorm Warning	ABR	Codington	46 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2004 Every severe thunderstorm warning in 2004

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.