Alert archive / South Dakota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 103, NWS Aberdeen, SD

July 18, 1994Hyde County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jul 18, 1994, 8:58 PM CDT for Hyde County, South Dakota. It was in force for 47 min.

The area

The counties it named.

The facts

Issued
Jul 18, 1994, 8:58 PM CDT (01:58 UTC)
Expired
Jul 18, 1994, 9:45 PM CDT
In force
47 min
Issued by
NWS Aberdeen, SD
Area
Whole counties

County Hyde County, SD

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 2.0 hours before the alert went out and 265 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, Bismarck Municip, ND at 00:00Z on 1994-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 692 joules per kilogram.LCLEL10008507005003002001001 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, Bismarck Municip, ND at 00:00Z on 1994-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 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
692 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
3657 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
40 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

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 18, 7:35 PM CDTSevere Thunderstorm WarningABRHughes, Sully40 min
Jul 18, 7:45 PM CDTSevere Thunderstorm WarningABREdmunds, Faulk60 min
Jul 18, 7:57 PM CDTSevere Thunderstorm WarningABRStanley48 min
Jul 18, 8:13 PM CDTSevere Thunderstorm WarningABREdmunds62 min
Jul 18, 8:18 PM CDTSevere Thunderstorm WarningABRHughes, Sully42 min
Jul 18, 8:25 PM CDTSevere Thunderstorm WarningABRBrown, McPherson65 min
Jul 18, 8:58 PM CDTSevere Thunderstorm WarningABRHughes, Sully27 min
Jul 18, 9:38 PM CDTSevere Thunderstorm WarningABRHand52 min
Jul 18, 9:48 PM CDTSevere Thunderstorm WarningABRSpink57 min
Jul 18, 10:02 PM CDTSevere Thunderstorm WarningABRClark43 min
Jul 18, 10:15 PM CDTSevere Thunderstorm WarningABRBeadle45 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1994Every severe thunderstorm warning in 1994

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.