Alert archive / South Dakota / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 52, NWS Aberdeen, SD

June 24, 1998Dewey County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jun 24, 1998, 9:30 PM MDT for Dewey County, South Dakota. It was in force for 65 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 24, 1998, 9:30 PM MDT (03:30 UTC)
Expired
Jun 24, 1998, 10:35 PM MDT
In force
65 min
Issued by
NWS Aberdeen, SD
Area
Whole counties

County Dewey County, SD

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 3.5 hours before the alert went out and 180 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 1998-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 956 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, Bismarck Municip, ND at 00:00Z on 1998-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -52 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
956 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
2014 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
-52 m²/s²
0-3 km storm-relative helicity
58 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.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Aberdeen, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 24, 9:30 AM MDT, 12 hours earlier.

Area forecast discussion, Jun 24, 9:30 AM MDT, 12 hours before
AREA FORECAST DISCUSSION FOR CENTRAL/NORTH CENTRAL/NORTHEAST SD
AND FOR TRAVERSE/BIG STONE COUNTIES OF MN
NATIONAL WEATHER SERVICE ABERDEEN SD
1030 AM CDT WED JUN 24 1998

HAVE UPDATED MAINLY TO CLEAN UP THE MORNING WORDING.  WILL LET
SLIGHT TSRA CHC CONTINUE THROUGH THE AFTERNOON GIVEN GOOD
INSTABILITY AND RELATIVELY WEAK CAP PER MORNING SOUNDING. MORNING
SOUNDINGS ALSO SUPPORTED HIGH TEMPS SO DIDNT FIDDLE WITH THESE MUCH.

.ABR...NONE.
TDK

The office that day

Everything else NWS Aberdeen, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 24, 7:54 PM MDTSevere Thunderstorm WarningABRMcPherson26 min
Jun 24, 8:20 PM MDTTornado WarningABRMcPherson50 min
Jun 24, 8:53 PM MDTSevere Thunderstorm WarningABRStanley32 min
Jun 24, 9:10 PM MDTSevere Thunderstorm WarningABRMcPherson45 min
Jun 24, 9:19 PM MDTSevere Thunderstorm WarningABRHamlin46 min
Jun 24, 9:25 PM MDTSevere Thunderstorm WarningABRDeuel50 min
Jun 24, 9:55 PM MDTSevere Thunderstorm WarningABRBrown50 min
Jun 24, 10:03 PM MDTSevere Thunderstorm WarningABREdmunds32 min
Jun 24, 10:23 PM MDTSevere Thunderstorm WarningABRFaulk27 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1998Every severe thunderstorm warning in 1998

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.