Alert archive / South Dakota / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 252, NWS Sioux Falls, SD

August 16, 2000Clay County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Aug 16, 2000, 6:57 PM CDT for Clay County, South Dakota. It was in force for 48 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 16, 2000, 6:57 PM CDT (23:57 UTC)
Expired: Aug 16, 2000, 7:45 PM CDT
In force: 48 min
Issued by: NWS Sioux Falls, SD
Area: Whole counties

County Clay 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
Aug 16, 4:30 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 12.0 hours before the alert went out and 184 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: 277 J/kg
Mixed-layer CIN: -476 J/kg
Mixed-layer LCL: 1022 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 74 m²/s²
0-3 km storm-relative helicity: 93 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KFSD 162358
SVRFSD
SDC027-170045-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
657 PM CDT WED AUG 16 2000

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CLAY COUNTY IN SOUTHEAST SOUTH DAKOTA

* UNTIL 745 PM CDT

* AT 657 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM 16 MILES NORTHWEST OF WAKONDA TO
  16 MILES WEST OF MECKLING...OR FROM 17 MILES NORTH OF YANKTON TO 2
  MILES SOUTH OF YANKTON...MOVING EAST AT 35 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  WAKONDA AROUND 715 PM CDT
  MECKLING AROUND 720 PM CDT
  VERMILLION AROUND 730 PM CDT

THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WIND IN EXCESS OF 70 
MPH. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS.

A TORNADO WATCH IS ALSO IN EFFECT FOR THE AREA. SEVERE THUNDERSTORMS
CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. PREPARE TO
MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE SUCH AS A BASEMENT OR
SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED.

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 16, 4:38 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Charles Mix	37 min
Aug 16, 5:44 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Charles Mix	31 min
Aug 16, 6:10 PM CDT	Severe Thunderstorm Warning	FSD	Hutchinson, McCook, Turner	35 min
Aug 16, 6:18 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme	27 min
Aug 16, 6:37 PM CDT	Tornado Warning	FSD	Bon Homme, Yankton	23 min
Aug 16, 6:41 PM CDT	Severe Thunderstorm Warning	FSD	Yankton	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; the sounding from the Mesonet's radiosonde archive.