Alert archive / South Dakota / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 201, NWS Sioux Falls, SD

August 7, 2000Hutchinson County, Turner County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Aug 7, 2000, 6:05 PM CDT for Hutchinson County, Turner County, South Dakota. It was in force for 40 min. 5 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 7, 2000, 6:05 PM CDT (23:05 UTC)
Expired: Aug 7, 2000, 6:45 PM CDT
In force: 40 min
Issued by: NWS Sioux Falls, SD
Area: Whole counties

Counties Hutchinson County, SD, Turner County, SD

The radar

The Sioux Falls radar (KFSD), 65 km from the middle of the area, began a volume at 23:07 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 7, 6:10 PM CDT	Thunderstorm Wind 61 E	Menno, SD	Thunderstorm winds caused tree and minor roof damage.
Aug 7, 6:30 PM CDT	Thunderstorm Wind 52 E	Freeman, SD	Thunderstorm winds caused tree damage, with some trees blown down.
Aug 7, 6:40 PM CDT	Thunderstorm Wind 52 E	Viborg, SD
Aug 7, 6:45 PM CDT	Hail 0.75	Kaylor, SD
Aug 7, 6:48 PM CDT	Thunderstorm Wind 57 E	Parker, 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 7, 4:30 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 11.1 hours before the alert went out and 191 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: 42 J/kg
Mixed-layer CIN: -242 J/kg
Mixed-layer LCL: 1640 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 73 m²/s²
0-3 km storm-relative helicity: 265 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 
WUUS53 KFSD 072305
SVRFSD
SDC067-125-072345-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
605 PM CDT MON AUG 7 2000

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEAST HUTCHINSON COUNTY IN SOUTHEAST SOUTH DAKOTA
  SOUTHWEST TURNER COUNTY IN SOUTHEAST SOUTH DAKOTA

* UNTIL 645 PM CDT

* AT 605 PM CDT...A SEVERE THUNDERSTORM WAS REPORTED 6 MILES SOUTH OF
  MENNO...OR ABOUT 20 MILES NORTHWEST OF YANKTON...MOVING NORTHEAST
  AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  MENNO AROUND 610 PM CDT

THIS STORM HAS A HISTORY OF PRODUCING 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 7, 4:54 PM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Gregory	51 min
Aug 7, 5:06 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme	24 min
Aug 7, 5:30 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme	30 min
Aug 7, 5:42 PM CDT	Severe Thunderstorm Warning	FSD	Yankton	33 min
Aug 7, 6:16 PM CDT	Severe Thunderstorm Warning	FSD	Gregory	44 min
Aug 7, 6:31 PM CDT	Severe Thunderstorm Warning	FSD	McCook, Minnehaha, Turner	29 min
Aug 7, 6:32 PM CDT	Severe Thunderstorm Warning	FSD	Hutchinson	43 min
Aug 7, 6:39 PM CDT	Severe Thunderstorm Warning	FSD	McCook	51 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.