Alert archive / South Dakota / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 233, NWS Aberdeen, SD

September 14, 1997Sully County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Sep 14, 1997, 7:00 PM CDT for Sully County, South Dakota. It was in force for 60 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: Sep 14, 1997, 7:00 PM CDT (00:00 UTC)
Expired: Sep 14, 1997, 8:00 PM CDT
In force: 60 min
Issued by: NWS Aberdeen, SD
Area: Whole counties

County Sully County, SD

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Sep 14, 5:45 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 0.0 hours before the alert went out and 138 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 84 J/kg
Mixed-layer CIN: -67 J/kg
Mixed-layer LCL: 1369 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 241 m²/s²
0-3 km storm-relative helicity: 528 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KABR 150001 RRA
SVRABR
SDC119-150100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
700 PM CDT SUN SEP 14 1997

* SEVERE THUNDERSTORM WARNING FOR
  NORTHERN SULLY COUNTY - CENTRAL SOUTH DAKOTA

* UNTIL 800 PM CDT
 
* SOME LOCATIONS AFFECTED
  AGAR                                   AROUND 725 PM CDT
  RURAL AREAS BETWEEN THE MISSOURI RIVER AND STONE LAKE

* AT 657 PM CDT...ABERDEEN DOPPLER RADAR INDICATED A\ SEVERE
  THUNDERSTORM WITH LARGE HAIL AND DAMAGING WINDS 27 MILES WEST OF
  GETTYSBURG OR 21 MILES WEST OF AGAR MOVING EAST AT 15 MPH.

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

DM/WCT

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 Sep 14, 9:41 AM CDT, 9 hours 19 minutes earlier.

Area forecast discussion, Sep 14, 9:41 AM CDT, 9 hours 19 minutes before

AREA FORECAST DISCUSSION FOR CENTRAL/NORTH CENTRAL/NORTHEAST SD
AND FOR TRAVERSE/BIG STONE COUNTIES OF MN
NATIONAL WEATHER SERVICE ABERDEEN SD
940 AM CDT SUN SEP 14 1997

OBSERVER AT PIR SEEMED TO INDICATE THE SHOWERS OVER CENTRAL SOUTH
DAKOTA WERE WEAK. THE SHOWER ACTIVITY IS PROBABLY OVERACCENUTATED ON
THE 88D SINCE WERE LOOKING UP AT AROUND 20,000 FEET. OK ON PRECIPITATION
HOWEVER...CLOUDS MAY BE THE PROBLEM. BACK EDGE OF CLOUD SHIELD WAS
CLEAR BACK IN SOUTHWEST SOUTH DAKOTA AT 10Z. THIS WOULD GIVE MOST OF
THE CWA A MOSTLY CLOUDY DAY SINCE A THICK MID AND HIGH LEVEL CLOUD DECK
EXISTS OVER THE AREA. THIS SHOULD HOLD TEMPERATURES DOWN...ALTHOUGH
TEMPERATURES ARE ALREADY AHEAD OF SCEDULE. WILL UPDATE TO LEAVE CLOUDS
IN ACROSS MOST OF THE AREA THIS AFTERNOON.

.ABR...NONE.

CB

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 14, 7:52 PM CDT	Severe Thunderstorm Warning	ABR	Potter, Sully	68 min
Sep 14, 8:38 PM CDT	Severe Thunderstorm Warning	ABR	Hughes, Hyde	62 min
Sep 14, 9:01 PM CDT	Severe Thunderstorm Warning	ABR	Sully	49 min
Sep 14, 10:41 PM CDT	Severe Thunderstorm Warning	ABR	Hand	49 min
Sep 15, 12:40 AM CDT	Severe Thunderstorm Warning	ABR	Spink	50 min
Sep 15, 12:57 AM CDT	Severe Thunderstorm Warning	ABR	Faulk	48 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1997 Every severe thunderstorm warning in 1997

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.