Alert archive / South Dakota / Tornado Warnings in 2001

Tornado Warning 6, NWS Aberdeen, SD

June 18, 2001Spink County, South Dakota

NWS Aberdeen, SD issued this tornado warning at Jun 18, 2001, 4:20 PM CDT for Spink County, South Dakota. It was in force for 25 min. 1 report 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: Jun 18, 2001, 4:20 PM CDT (21:20 UTC)
Expired: Jun 18, 2001, 4:45 PM CDT
In force: 25 min
Issued by: NWS Aberdeen, SD
Area: Whole counties

County Spink County, SD

What was reported inside it

Time	Report	Where	Remark
Jun 18, 4:42 PM CDT	Hail 0.75	Conde, 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 nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 9.3 hours before the alert went out and 6 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2496 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 229 m²/s²
0-3 km storm-relative helicity: 364 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.

641 
WFUS53 KABR 182120
TORABR
SDC115-182145-
/NEW.KABR.TO.W.0037.182120-182145/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
420 PM CDT MON JUN 18 2001

THE NATIONAL WEATHER SERVICE IN ABERDEEN HAS ISSUED A

* TORNADO WARNING FOR...
  SPINK COUNTY IN NORTHEAST SOUTH DAKOTA

* UNTIL 445 PM CDT

* AT 420 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 6 MILES WEST OF BRENTFORD...OR ABOUT 18 MILES NORTH OF
  REDFIELD...MOVING EAST AT 40 MPH.

* THE TORNADO WILL BE NEAR...
  CONDE...TURTON...VERDON AROUND 440 PM CDT

THIS IS AN EXTREMELY DANGEROUS AND POTENTIALLY LIFE THREATENING
SITUATION. IF YOU ARE IN THE PATH OF THIS TORNADO TAKE SHELTER NOW

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
ABERDEEN.

$$
LAT...LON 4524 9846 4505 9845 4501 9800 4524 9799

BINAU

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 12:35 AM CDT	Severe Thunderstorm Warning	ABR	Jones	55 min
Jun 18, 1:16 AM CDT	Severe Thunderstorm Warning	ABR	Lyman	59 min
Jun 18, 2:38 AM CDT	Severe Thunderstorm Warning	ABR	Buffalo, Hand	37 min
Jun 18, 4:59 AM CDT	Severe Thunderstorm Warning	ABR	Buffalo	46 min
Jun 18, 6:10 AM CDT	Severe Thunderstorm Warning	ABR	Corson	65 min
Jun 18, 4:46 PM CDT	Severe Thunderstorm Warning	ABR	Clark, Spink	29 min

Nearby

Tornado Warnings in South Dakota, 2001 Every tornado warning in 2001 Tornadoes in 2001

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.