Alert archive / South Dakota / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 250, NWS Sioux Falls, SD

August 16, 2000Bon Homme County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Aug 16, 2000, 6:18 PM CDT for Bon Homme County, South Dakota. It was in force for 27 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: Aug 16, 2000, 6:18 PM CDT (23:18 UTC)
Expired: Aug 16, 2000, 6:45 PM CDT
In force: 27 min
Issued by: NWS Sioux Falls, SD
Area: Whole counties

County Bon Homme County, SD

What was reported inside it

Time	Report	Where	Remark
Aug 16, 6:26 PM CDT	Thunderstorm Wind 52 E	Springfield, 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 16, 4:30 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 11.3 hours before the alert went out and 217 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: 2119 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 195 m²/s²
0-3 km storm-relative helicity: 318 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 162318
SVRFSD
SDC009-162345-

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

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BON HOMME COUNTY IN SOUTHEAST SOUTH DAKOTA

* UNTIL 645 PM CDT

* AT 618 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 5 MILES WEST OF TYNDALL...OR ABOUT 29 MILES
  EAST OF PICKSTOWN...MOVING NORTHEAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  TYNDALL AROUND 625 PM CDT
  SCOTLAND AROUND 640 PM CDT

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

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 Sioux Falls, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 16, 3:25 PM CDT, 2 hours 53 minutes earlier.

Area forecast discussion, Aug 16, 3:25 PM CDT, 2 hours 53 minutes before

AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
325 PM CDT WED AUG 16 2000

DO NOT SEE MUCH OF A NEED TO OVERSTATE THE OBVIOUS. PLENTY OF LIFT
IN THE AREA WITH VERY HIGH POPS IN PLACE FOR TNGT. OVERALL FOLLOWED
AN ETA/AVN SOLN. WAA SHOWERS/TSTMS MOSTLY N AND E OF THE CWA
ATTM...WITH MUCH OF SW SD/NEBRASKA CAPPED. SIGNIFICANT COOLING
700-500MB EXPECTED TO EASILY BREAK CAP THIS EVENING WITH RAPIDLY
DEVELOPING TSTMS EXPECTED. SPC 20Z RISK OF SVR WX AND DISCUSSION
PRETTY MUCH IN LINE WITH WHAT FSD IS SEEING. WITH CAA AND SUBSIDENCE
AFTER MIDNIGHT...PCPN SHOULD END FM NW TO SE TNGT.

12Z ETA HINTING OF FOG OR LOW STATUS BY LATE TNGT AND THU MRNG. NRLY
WINDS AND SPEED NOT VERY CONDUCTIVE FOR FOG DEVELOPMENT...BUT WL
MENTION PSBLTY OF LO CLOUDS. WHILE MDLS ARE PRETTY DRY...WITH UPPER
LVL TROF TO THE NE AND COOLER TEMPS ALF EXPECT TO SEE CU EASILY FORM
DURING THE DAY. MOS/FAN NOT TOO BAD IN TEMPS...WITH A BLEND USED IN
THE PKG. IN THE EXTENDED FCST PKG...MAINLY SAT AND MON WL BE BEST
CHC FOR SVR WX WITH TEMPS ABOUT STATUS QUO. TSTMS MON INTO TUE COULD
BE VERY INTERESTING WITH SIGNIFICANT NW CONUS TROF EXPECTED TO MOVE
INTO THE NRN PLAINS.

.FSD...NONE

BR

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, 6:37 PM CDT	Tornado Warning	FSD	Bon Homme, Yankton	23 min
Aug 16, 6:41 PM CDT	Severe Thunderstorm Warning	FSD	Yankton	34 min
Aug 16, 6:57 PM CDT	Severe Thunderstorm Warning	FSD	Clay	48 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.