Alert archive / South Dakota / Tornado Warnings in 1991

Tornado Warning 11, NWS Aberdeen, SD

June 14, 1991Hamlin County, Kingsbury County, South Dakota

NWS Aberdeen, SD issued this tornado warning at Jun 14, 1991, 8:48 PM CDT for Hamlin County, Kingsbury County, South Dakota. It was in force for 27 min.

The area

The counties it named.

The facts

Issued
Jun 14, 1991, 8:48 PM CDT (01:48 UTC)
Expired
Jun 14, 1991, 9:15 PM CDT
In force
27 min
Issued by
NWS Aberdeen, SD
Area
Whole counties

Counties Hamlin County, SD, Kingsbury County, SD

The nearest sounding before it

Minneapolis, MN (KSTC), launched 00:00Z, 1.8 hours before the alert went out and 298 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 00:00Z on 1991-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 807 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 00:00Z on 1991-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 square meters per square second.1939Sfc1 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
807 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
1047 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
125 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.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 7:41 PM CDTSevere Thunderstorm WarningABRHamlin64 min
Jun 14, 8:32 PM CDTTornado WarningABRKingsbury28 min
Jun 14, 9:44 PM CDTTornado WarningABRSully46 min
Jun 14, 10:21 PM CDTSevere Thunderstorm WarningABRHughes, Sully69 min
Jun 14, 11:01 PM CDTSevere Thunderstorm WarningABRPotter59 min

Nearby

Tornado Warnings in South Dakota, 1991Every tornado warning in 1991Tornadoes 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.