Alert archive / South Dakota / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 174, NWS Sioux Falls, SD

August 4, 2000Beadle County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Aug 4, 2000, 11:52 PM CDT for Beadle County, South Dakota. It was in force for 53 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Aug 4, 2000, 11:52 PM CDT (04:52 UTC)
Expired: Aug 5, 2000, 12:45 AM CDT
In force: 53 min
Issued by: NWS Sioux Falls, SD
Area: Whole counties

County Beadle County, SD

The radar

The Aberdeen radar (KABR), 116 km from the middle of the area, began a volume at 04:54 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Aug 5, 12:15 AM CDT	Thunderstorm Wind 61 E	Bonilla, SD	Thunderstorm winds destroyed a dairy barn and a double garage, broke windows, and caused additional damage to a house, farm equipment, and trees.
Aug 5, 12:26 AM CDT	Hail 0.75	Wessington, SD

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

Issued	Product	Office	Lasted
Aug 4, 10:00 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 4.9 hours before the alert went out and 55 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: 2354 J/kg
Mixed-layer CIN: -50 J/kg
Mixed-layer LCL: 1004 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 98 m²/s²
0-3 km storm-relative helicity: 105 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 6.9

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KFSD 050453
SVRFSD
SDC005-050545-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1152 PM CDT FRI AUG 4 2000

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BEADLE COUNTY IN EAST CENTRAL SOUTH DAKOTA

* UNTIL 1245 AM CDT

* AT 1152 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM 20 MILES NORTH OF HITCHCOCK TO 25
  MILES WEST OF WESSINGTON...OR FROM 35 MILES NORTH OF HURON TO 45
  MILES NORTH OF CHAMBERLAIN...MOVING SOUTHEAST AT 35 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  HITCHCOCK...WESSINGTON AROUND 1210 AM CDT
  WOLSE Y AROUND 1225 AM CDT
  VIRGIL AROUND 1230 AM CDT
  CAVOUR...HURON...YALE AROUND 1235 AM CDT

THIS STORM WILL PRODUCE LARGE HAIL AND DAMAGING WIND. GO INSIDE A
STURDY BUILDING AND STAY AWAY FROM WINDOWS.

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 4, 11:29 PM CDT	Severe Thunderstorm Warning	FSD	Brule	31 min
Aug 5, 12:42 AM CDT	Tornado Warning	FSD	Jerauld	33 min
Aug 5, 12:46 AM CDT	Severe Thunderstorm Warning	FSD	Beadle	29 min
Aug 5, 1:07 AM CDT	Severe Thunderstorm Warning	FSD	Jerauld, Sanborn	38 min
Aug 5, 1:45 AM CDT	Severe Thunderstorm Warning	FSD	Davison, Sanborn	30 min
Aug 5, 2:03 AM CDT	Severe Thunderstorm Warning	FSD	Hanson	27 min
Aug 5, 2:16 AM CDT	Severe Thunderstorm Warning	FSD	Davison	14 min
Aug 5, 2:30 AM CDT	Severe Thunderstorm Warning	FSD	Davison, Hanson	30 min
Aug 5, 4:41 AM CDT	Severe Thunderstorm Warning	FSD	Beadle	34 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2000 Every severe thunderstorm warning in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.