Alert archive / South Dakota / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 33, NWS Aberdeen, SD

June 11, 1990Lyman County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jun 11, 1990, 7:44 PM CDT for Lyman County, South Dakota. It was in force for 31 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 11, 1990, 7:44 PM CDT (00:44 UTC)
Expired
Jun 11, 1990, 8:15 PM CDT
In force
31 min
Issued by
NWS Aberdeen, SD
Area
Whole counties

County Lyman County, SD

The radar

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

What was reported inside it

TimeReportWhereRemark
Jun 11, 8:20 PM CDTThunderstorm Wind 52Lyman, SD

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Aberdeen, SD (KHON), launched 00:00Z, 0.7 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-pSkew-T log-p diagram, Aberdeen, SD at 00:00Z on 1990-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2064 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 1990-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 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
2064 J/kg
Mixed-layer CIN
-72 J/kg
Mixed-layer LCL
1789 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
61 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.2

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 11, 7:08 PM CDTSevere Thunderstorm WarningABRJones37 min
Jun 11, 7:36 PM CDTSevere Thunderstorm WarningABRFaulk69 min
Jun 11, 7:44 PM CDTSevere Thunderstorm WarningABREdmunds61 min
Jun 11, 7:59 PM CDTSevere Thunderstorm WarningABRBuffalo, Lyman61 min
Jun 11, 8:06 PM CDTSevere Thunderstorm WarningABRBrown69 min
Jun 11, 8:31 PM CDTSevere Thunderstorm WarningABRBrown59 min
Jun 11, 9:12 PM CDTSevere Thunderstorm WarningABRJerauld33 min
Jun 11, 9:25 PM CDTSevere Thunderstorm WarningABRBeadle35 min
Jun 11, 9:53 PM CDTSevere Thunderstorm WarningABRKingsbury37 min
Jun 11, 10:15 PM CDTSevere Thunderstorm WarningABRMiner30 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1990Every severe thunderstorm warning in 1990

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.