Alert archive / South Dakota / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 88, NWS Aberdeen, SD

August 1, 1992Brown County, Day County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Aug 1, 1992, 4:57 PM CDT for Brown County, Day County, South Dakota. It was in force for 33 min.

The area

The counties it named.

The facts

Issued
Aug 1, 1992, 4:57 PM CDT (21:57 UTC)
Expired
Aug 1, 1992, 5:30 PM CDT
In force
33 min
Issued by
NWS Aberdeen, SD
Area
Whole counties

Counties Brown County, SD, Day County, SD

The nearest sounding before it

Minneapolis, MN (KSTC), launched 12:00Z, 10.0 hours before the alert went out and 350 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 12:00Z on 1992-08-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 82 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 12:00Z on 1992-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 111 square meters per square second.193958Sfc1 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
82 J/kg
Mixed-layer CIN
-236 J/kg
Mixed-layer LCL
1220 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
111 m²/s²
0-3 km storm-relative helicity
62 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
Aug 1, 4:00 PM CDTSevere Thunderstorm WarningABRBrown, Day60 min
Aug 1, 6:14 PM CDTSevere Thunderstorm WarningABRWalworth61 min
Aug 1, 6:49 PM CDTSevere Thunderstorm WarningABREdmunds56 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1992Every severe thunderstorm warning in 1992

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.