Alert archive / South Dakota / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 116, NWS Aberdeen, SD

July 10, 2008Lyman County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jul 10, 2008, 2:05 AM CDT for Lyman County, South Dakota. It was in force for 55 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: Jul 10, 2008, 2:05 AM CDT (07:05 UTC)
Expired: Jul 10, 2008, 3:00 AM CDT
In force: 55 min
Issued by: NWS Aberdeen, SD
Area: Storm-based polygon

County Lyman County, SD

The radar

The Aberdeen radar (KABR), 207 km from the middle of the area, began a volume at 07:06 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

Aberdeen, SD (KABR), launched 00:00Z, 7.1 hours before the alert went out and 160 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3240 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 45 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Jul 9, 9:20 PM CDT, 4 hours 45 minutes earlier.

Area forecast discussion, Jul 9, 9:20 PM CDT, 4 hours 45 minutes before

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Hazardous weather outlook, Jul 9, 5:31 AM CDT, 20 hours 34 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 9, 8:16 PM CDT	Severe Thunderstorm Warning	ABR	Corson	44 min
Jul 9, 8:56 PM CDT	Severe Thunderstorm Warning	ABR	Corson	64 min
Jul 10, 6:28 AM CDT	Severe Thunderstorm Warning	ABR	Spink	32 min
Jul 10, 6:57 AM CDT	Severe Thunderstorm Warning	ABR	Spink	15 min
Jul 10, 8:37 AM CDT	Severe Thunderstorm Warning	ABR	Day	23 min
Jul 10, 9:02 AM CDT	Severe Thunderstorm Warning	ABR	Codington, Deuel, Grant	28 min
Jul 10, 5:46 PM CDT	Severe Thunderstorm Warning	ABR	Corson	44 min
Jul 10, 6:29 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, Corson, Walworth	46 min
Jul 10, 7:42 AM CDT	Severe Thunderstorm Warning	ABR	Traverse	33 min
Jul 10, 8:14 AM CDT	Severe Thunderstorm Warning	ABR	Traverse	16 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2008 Every severe thunderstorm warning in 2008

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.