Alert archive / South Dakota / Tornado Warnings in 1991

Tornado Warning 14, NWS Aberdeen, SD

June 19, 1991Codington County, South Dakota

NWS Aberdeen, SD issued this tornado warning at Jun 19, 1991, 5:43 PM CDT for Codington County, South Dakota. It was in force for 32 min.

The area

The counties it named.

The facts

Issued
Jun 19, 1991, 5:43 PM CDT (22:43 UTC)
Expired
Jun 19, 1991, 6:15 PM CDT
In force
32 min
Issued by
NWS Aberdeen, SD
Area
Whole counties

County Codington County, SD

The nearest sounding before it

Aberdeen, SD (KHON), launched 12:00Z, 10.7 hours before the alert went out and 96 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 1991-06-19Temperature 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 1991-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 110 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
1735 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
110 m²/s²
0-3 km storm-relative helicity
116 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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 19, 4:01 PM CDTSevere Thunderstorm WarningABRBrown29 min
Jun 19, 4:20 PM CDTSevere Thunderstorm WarningABRDay30 min
Jun 19, 4:26 PM CDTSevere Thunderstorm WarningABRBeadle, Clark64 min
Jun 19, 4:54 PM CDTTornado WarningABRCodington51 min
Jun 19, 5:09 PM CDTSevere Thunderstorm WarningABRKingsbury66 min
Jun 19, 5:17 PM CDTSevere Thunderstorm WarningABRRoberts28 min
Jun 19, 5:27 PM CDTSevere Thunderstorm WarningABRDay33 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.