Alert archive / South Dakota / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 29, NWS Sioux Falls, SD

May 28, 1991Moody County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at May 28, 1991, 6:43 PM CDT for Moody County, South Dakota. It was in force for 47 min.

The area

The counties it named.

The facts

Issued
May 28, 1991, 6:43 PM CDT (23:43 UTC)
Expired
May 28, 1991, 7:30 PM CDT
In force
47 min
Issued by
NWS Sioux Falls, SD
Area
Whole counties

County Moody County, SD

The nearest sounding before it

Aberdeen, SD (KHON), launched 12:00Z, 11.7 hours before the alert went out and 168 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 12:00Z on 1991-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 1991-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 88 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
868 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
88 m²/s²
0-3 km storm-relative helicity
308 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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.

In the hours before

Special weather statement, May 28, 3:13 PM CDT, 3 hours 30 minutes before
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Special weather statement, May 28, 3:51 PM CDT, 2 hours 52 minutes before
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Special weather statement, May 28, 4:28 PM CDT, 2 hours 15 minutes before
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Special weather statement, May 28, 5:31 PM CDT, 1 hour 12 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 28, 3:35 AM CDTSevere Thunderstorm WarningFSDAurora, Douglas40 min
May 28, 5:08 AM CDTSevere Thunderstorm WarningFSDMcCook37 min
May 28, 5:30 AM CDTSevere Thunderstorm WarningFSDCharles Mix30 min
May 28, 5:44 AM CDTSevere Thunderstorm WarningFSDMinnehaha31 min
May 28, 6:12 AM CDTSevere Thunderstorm WarningFSDMinnehaha33 min
May 28, 6:17 AM CDTSevere Thunderstorm WarningFSDHanson, Hutchinson, McCook28 min
May 28, 6:50 AM CDTSevere Thunderstorm WarningFSDHutchinson, McCook, Turner25 min
May 28, 6:50 AM CDTSevere Thunderstorm WarningFSDMinnehaha25 min
May 28, 3:18 PM CDTSevere Thunderstorm WarningFSDTripp27 min
May 28, 6:16 PM CDTSevere Thunderstorm WarningFSDBrookings44 min
May 28, 6:43 PM CDTSevere Thunderstorm WarningFSDLake37 min
May 28, 12:35 AM CDTSevere Thunderstorm WarningFSDMonona55 min
May 27, 11:31 PM CDTSevere Thunderstorm WarningFSDThurston59 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1991Every severe thunderstorm warning in 1991

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.