Alert archive / South Dakota / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 23, NWS Sioux Falls, SD

May 15, 2000Minnehaha County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at May 15, 2000, 10:17 PM CDT for Minnehaha County, South Dakota. It was in force for 43 min. 9 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 15, 2000, 10:17 PM CDT (03:17 UTC)
Expired: May 15, 2000, 11:00 PM CDT
In force: 43 min
Issued by: NWS Sioux Falls, SD
Area: Whole counties

County Minnehaha County, SD

The radar

The Sioux Falls radar (KFSD), 11 km from the middle of the area, began a volume at 03:21 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 15, 10:32 PM CDT	Hail 0.75	Hartford, SD
May 15, 10:38 PM CDT	Hail 1.75	Crooks, SD
May 15, 10:41 PM CDT	Hail 1	Hartford, SD
May 15, 10:47 PM CDT	Hail 1	Sioux Falls, SD
May 15, 10:50 PM CDT	Hail 1.75	Sioux Falls, SD	Large hail broke windows in homes and damaged vehicles.
May 15, 10:52 PM CDT	Hail 0.75	Sioux Falls, SD
May 15, 10:55 PM CDT	Hail 1	Sioux Falls, SD
May 15, 10:56 PM CDT	Hail 0.88	Sioux Falls, SD
May 15, 10:59 PM CDT	Hail 0.75	Sioux Falls, 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 00:00Z, 3.3 hours before the alert went out and 187 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: 40 J/kg
Mixed-layer CIN: -65 J/kg
Mixed-layer LCL: 1705 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 4 m²/s²
0-3 km storm-relative helicity: 105 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 160318
SVRFSD
SDC099-160400-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1017 PM CDT MON MAY 15 2000

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

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

* UNTIL 1100 PM CDT

* AT 1017 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 8 MILES WEST OF COLTON...OR ABOUT 14 MILES
  SOUTH OF MADISON...MOVING SOUTHEAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  COLTON AROUND 1025 PM CDT
  HUMBOLDT AROUND 1030 PM CDT
  HARTFORD AROUND 1035 PM CDT
  CROOKS AROUND 1040 PM CDT
  WALL LAKE AROUND 1045 PM CDT
  SIOUX FALLS AROUND 1050 PM CDT

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER
AWAY FROM CREEK BEDS AND OTHER FLOOD-PRONE AREAS. REMEMBER...A SEVERE
THUNDERSTORM CAN PRODUCE LARGE DAMAGING HAIL...DkAMAGING WINDS IN
EXCESS OF 58 MPH...DEADLY LIGHTNING...AND VERY HEAVY RAIN.

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 15, 9:24 PM CDT	Severe Thunderstorm Warning	FSD	Lake, Miner	51 min
May 15, 10:46 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln	44 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.