Alert archive / South Dakota / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 92, NWS Aberdeen, SD

July 29, 1986Deuel County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jul 29, 1986, 8:56 PM CDT for Deuel County, South Dakota. It was in force for 64 min.

The area

The counties it named.

The facts

Issued
Jul 29, 1986, 8:56 PM CDT (01:56 UTC)
Expired
Jul 29, 1986, 10:00 PM CDT
In force
64 min
Issued by
NWS Aberdeen, SD
Area
Whole counties

County Deuel County, SD

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Aberdeen, SD (KHON), launched 00:00Z, 1.9 hours before the alert went out and 137 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 00:00Z on 1986-07-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3602 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, Aberdeen, SD at 00:00Z on 1986-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 103 square meters per square second.1939587897Sfc1 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
3602 J/kg
Mixed-layer CIN
-50 J/kg
Mixed-layer LCL
1336 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
103 m²/s²
0-3 km storm-relative helicity
243 m²/s²
Significant tornado parameter
3.5
Supercell composite
24.1

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
Jul 29, 8:00 PM CDTSevere Thunderstorm WarningABRClark, Hamlin, Kingsbury60 min
Jul 29, 8:26 PM CDTSevere Thunderstorm WarningABRDay64 min
Jul 29, 8:56 PM CDTSevere Thunderstorm WarningABRHamlin, Kingsbury64 min
Jul 29, 10:00 PM CDTSevere Thunderstorm WarningABRDeuel30 min
Jul 29, 10:03 PM CDTSevere Thunderstorm WarningABRDay57 min
Jul 29, 10:08 PM CDTSevere Thunderstorm WarningABRCorson67 min
Jul 29, 10:17 PM CDTSevere Thunderstorm WarningABRCampbell58 min
Jul 29, 10:19 PM CDTSevere Thunderstorm WarningABRCodington, Grant56 min
Jul 29, 10:30 PM CDTTornado WarningABRClark30 min
Jul 29, 10:50 PM CDTSevere Thunderstorm WarningABRWalworth55 min
Jul 29, 10:52 PM CDTTornado WarningABRCodington38 min
Jul 29, 11:00 PM CDTSevere Thunderstorm WarningABRDay60 min
Jul 29, 11:11 PM CDTSevere Thunderstorm WarningABRCampbell64 min
Jul 29, 11:21 PM CDTTornado WarningABRCodington39 min
Jul 29, 11:36 PM CDTSevere Thunderstorm WarningABRCampbell, McPherson69 min
Jul 29, 11:58 PM CDTTornado WarningABRCodington, Deuel, Hamlin32 min
Jul 30, 12:28 AM CDTTornado WarningABRDeuel, Grant32 min
Jul 30, 2:46 AM CDTSevere Thunderstorm WarningABRFaulk, Spink59 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1986Every severe thunderstorm warning in 1986

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.