Alert archive / South Dakota / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 151, NWS Aberdeen, SD

August 26, 1998Jones County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Aug 26, 1998, 11:39 PM CDT for Jones County, South Dakota. It was in force for 61 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
Aug 26, 1998, 11:39 PM CDT (04:39 UTC)
Expired
Aug 27, 1998, 12:40 AM CDT
In force
61 min
Issued by
NWS Aberdeen, SD
Area
Whole counties

County Jones County, SD

The nearest sounding before it

Rapid City, SD (KUNR), launched 00:00Z, 4.7 hours before the alert went out and 176 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, Rapid City, SD at 00:00Z on 1998-08-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 653 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, Rapid City, SD at 00:00Z on 1998-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 101 square meters per square second.19395878Sfc1 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
653 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
2509 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
101 m²/s²
0-3 km storm-relative helicity
136 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KABR 270440 RRA
SVRABR
SDC075-270540-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
1139 PM CDT (1039 PM MDT) WED AUG 26 1998

THE NATIONAL WEATHER SERVICE IN ABERDEEN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN JONES COUNTY IN CENTRAL SOUTH DAKOTA

* UNTIL 1140 PM MDT (1240 AM CDT)

AT 1035 PM MDT ABERDEEN DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM JUST WEST OF OKATON MOVING SOUTHEAST DAT 15 MPH. THIS
STORM WILL AFFECT OKATON THRU 1110 PM MDT... OTHERWISE THIS STORM
WILL REMAIN OVER OPEN AREAS.

THIS IS A DANGEROUS STORM! STAY INDOORS AWAY FROM WINDOWS.

WCT/RS

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 Aug 26, 9:30 PM CDT, 2 hours 9 minutes earlier.

Area forecast discussion, Aug 26, 9:30 PM CDT, 2 hours 9 minutes before
AREA FORECAST DISCUSSION FOR CENTRAL/NORTH CENTRAL/NORTHEAST SD
AND FOR TRAVERSE/BIG STONE COUNTIES OF MN
NATIONAL WEATHER SERVICE ABERDEEN SD
930 PM CDT WED AUG 26 1998

ABR RADAR INDICATING TSRA CONTINUING IN THE WESTERN HALF OF OUR CWA.
THESE STORMS HAVE WEAKENED BELOW SEVERE LEVELS BUT ARE STILL PRODUCING
LOCALLY HEAVY DOWNPOURS. THESE STORMS ARE MOVING SLOWLY AND HAVE
PRODUCED UP TO 3.5 INCHES OF RAIN...CAUSING SOME FLOODING...PRIMARILY
IN EASTERN CORSON COUNTY. WILL STICK WITH CURRENT PACKAGE SINCE
CONVECTION IS EXPECTED TO CONTINUE FOR SEVERAL MORE HOURS WHILE
REMAINING BELOW SEVERE LEVELS. CURRENT PACKAGE IS ON TRACK.

.ABR...NONE.

WCT

In the hours before

Local storm report, Aug 26, 8:03 PM CDT, 3 hours 36 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  ABERDEEN SD
803 PM CDT WED AUG 26 1998

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0750 PM    TIMBER LAKE               SD   0.88 INCH HAIL
08/26/98   DEWEY

RGB

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 26, 7:43 PM CDTSevere Thunderstorm WarningABRWalworth62 min
Aug 26, 8:00 PM CDTSevere Thunderstorm WarningABRCorson45 min
Aug 26, 8:56 PM CDTFlash Flood WarningABRCorson3 hr
Aug 26, 10:07 PM CDTSevere Thunderstorm WarningABRCampbell, Walworth58 min
Aug 27, 1:44 AM CDTSevere Thunderstorm WarningABRStanley61 min
Aug 27, 2:17 AM CDTFlash Flood WarningABRWalworth93 min
Aug 27, 2:21 AM CDTSevere Thunderstorm WarningABRHughes64 min
Aug 27, 2:47 AM CDTSevere Thunderstorm WarningABRStanley63 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.