Alert archive / South Dakota / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 30, NWS Sioux Falls, SD

May 17, 2000Brookings County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at May 17, 2000, 9:31 AM CDT for Brookings County, South Dakota. It was in force for 44 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: May 17, 2000, 9:31 AM CDT (14:31 UTC)
Expired: May 17, 2000, 10:15 AM CDT
In force: 44 min
Issued by: NWS Sioux Falls, SD
Area: Whole counties

County Brookings County, SD

The radar

The Sioux Falls radar (KFSD), 87 km from the middle of the area, began a volume at 14:32 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
May 17, 10:02 AM CDT	Thunderstorm Wind 52 E	Volga, SD	Thunderstorm winds caused tree and power line damage, causing power outages.
May 17, 10:05 AM CDT	Hail 1.75	Volga, SD	Large hail caused damage in Volga, but the amount of damage was not known.
May 17, 10:10 AM CDT	Thunderstorm Wind 60 E	Elkton, SD	Thunderstorm winds destroyed a barn roof, and damaged another barn.
May 17, 10:15 AM CDT	Thunderstorm Wind 52 E	White, SD	Thunderstorm winds damaged two farm buildings.
May 17, 10:16 AM CDT	Thunderstorm Wind 62 M	Brookings Arpt, SD	Thunderstorm winds blew off part of a motel roof, overturned two boats, blew a trampoline into a car dealership, and caused tree and some vehicle damage.

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, 2.5 hours before the alert went out and 140 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: 1071 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: -63 m²/s²
0-3 km storm-relative helicity: 41 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.

542 
WUUS53 KFSD 171431
SVRFSD
SDC011-171515-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
931 AM CDT WED MAY 17 2000

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

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

* UNTIL 1015 AM CDT

* AT 929 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 20 MILES SOUTHWEST OF BRUCE...OR ABOUT 23 MILES
  NORTH OF MADISON...MOVING NORTHEAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LAKE OAKWOOD STATE PARK AROUND 955 AM CDT
  BRUCE AROUND 1005 AM CDT

THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL AND DAMAGING WIND.
GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS.

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

The office that day

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

Issued	Product	Office	Counties	Lasted
May 17, 8:13 AM CDT	Severe Thunderstorm Warning	FSD	Kingsbury, Miner	32 min
May 17, 8:43 AM CDT	Severe Thunderstorm Warning	FSD	Kingsbury	32 min
May 17, 9:14 AM CDT	Severe Thunderstorm Warning	FSD	Kingsbury	31 min
May 17, 10:09 AM CDT	Severe Thunderstorm Warning	FSD	Brookings	51 min
May 17, 10:31 AM CDT	Severe Thunderstorm Warning	FSD	Kingsbury	29 min
May 17, 10:54 AM CDT	Severe Thunderstorm Warning	FSD	Brookings, Kingsbury	36 min
May 17, 11:23 AM CDT	Severe Thunderstorm Warning	FSD	Lake, Miner	37 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.