Alert archive / South Dakota / Tornado Warnings in 2002

Tornado Warning 10, NWS Sioux Falls, SD

July 28, 2002Kingsbury County, South Dakota

NWS Sioux Falls, SD issued this tornado warning at Jul 28, 2002, 1:23 PM CDT for Kingsbury County, South Dakota. It was in force for 37 min. 9 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 28, 2002, 1:23 PM CDT (18:23 UTC)
Expired: Jul 28, 2002, 2:00 PM CDT
In force: 37 min
Issued by: NWS Sioux Falls, SD
Area: Counties, with a storm outline in the text

County Kingsbury County, SD

The radar

The Sioux Falls radar (KFSD), 104 km from the middle of the area, began a volume at 18:27 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
Jul 28, 1:31 PM CDT	Hail 0.75	De Smet, SD
Jul 28, 1:40 PM CDT	Hail 4.5	Lake Preston, SD	Large hail broke windows in homes and vehicles, and otherwise damaged vehicles. The hail also caused crop damage, but the amount of crop damage was not known.
Jul 28, 1:41 PM CDT	Tornado F0	Lake Preston, SD	A tornado was observed crossing Lake Thompson, but did not reach land, and caused no reported damage.
Jul 28, 1:45 PM CDT	Hail 1	Lake Preston, SD
Jul 28, 1:45 PM CDT	Thunderstorm Wind 52 E	Lake Preston, SD
Jul 28, 1:45 PM CDT	Hail 2.75	Lake Preston, SD	Large hail broke windows, and heavily damaged vehicles and boats. Holes were punched by the hail in some of the boats. Two boaters on Lake Thompson were injured by the hail. One was taken to the hospital with a head injury, and the other suffered several welts
Jul 28, 1:52 PM CDT	Hail 1.75	Oldham, SD	Large hail broke numerous windows in buildings and vehicles in Oldham and rural areas nearby, and caused other damage to vehicles. The hail also caused or along with severe winds contributed to widespread crop damage in the area, with some crops totally destro
Jul 28, 1:52 PM CDT	Thunderstorm Wind 61 E	Oldham, SD	Thunderstorm winds caused widespread tree damage. The winds also blew down power lines and poles, including many in the town of Oldham. The winds, along with large hail, contributed to widespread crop damage, with some corn and soybean crops totally destroyed.
Jul 28, 1:55 PM CDT	Tornado F0	Lake Preston, SD	A brief tornado damaged several farm buildings.

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, 6.4 hours before the alert went out and 95 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: 99 J/kg
Mixed-layer CIN: -249 J/kg
Mixed-layer LCL: 1295 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 255 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

833 
WFUS53 KFSD 281823
TORFSD
SDC077-281900-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
122 PM CDT SUN JUL 28 2002

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* TORNADO WARNING FOR...
  KINGSBURY COUNTY IN EAST CENTRAL SOUTH DAKOTA

* UNTIL 200 PM CDT

* AT 122 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM WITH A DEVELOPING TORNADO 4 MILES SOUTH OF DE SMET...
  OR ABOUT 31 MILES NORTHWEST OF MADISON...MOVING EAST AT 25 MPH.

* SOME LOCATIONS AFFECTED...
  LAKE PRESTON AROUND 140 PM CDT
  HETLAND AROUND 145 PM CDT

THIS WARNING REPLACES THE SEVERE THUNDERSTORM WARNING PREVIOUSLY
ISSUED FOR THE WARNED AREA.

THIS THUNDERSTORM CAN PRODUCE A TORNADO AT ANY TIME. TAKE SHELTER
NOW.

IF YOU ARE IN THE PATH OF THIS STORM...TAKE COVER IMMEDIATELY.

LAT...LON 4442 9767 4424 9766 4424 9717 4447 9716

BOUSTEAD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 28, 12:02 PM CDT	Severe Thunderstorm Warning	FSD	Beadle	38 min
Jul 28, 12:57 PM CDT	Severe Thunderstorm Warning	FSD	Beadle, Kingsbury	33 min
Jul 28, 1:25 PM CDT	Severe Thunderstorm Warning	FSD	Sanborn	35 min
Jul 28, 1:40 PM CDT	Severe Thunderstorm Warning	FSD	Miner	50 min
Jul 28, 1:59 PM CDT	Tornado Warning	FSD	Brookings, Kingsbury	41 min
Jul 28, 2:12 PM CDT	Tornado Warning	FSD	Brookings	48 min
Jul 28, 2:21 PM CDT	Severe Thunderstorm Warning	FSD	Lake, Moody	39 min
Jul 28, 2:48 PM CDT	Severe Thunderstorm Warning	FSD	Lake, Moody	42 min
Jul 28, 2:59 PM CDT	Severe Thunderstorm Warning	FSD	Brookings	31 min
Jul 28, 3:19 PM CDT	Severe Thunderstorm Warning	FSD	Minnehaha	41 min
Jul 28, 3:27 PM CDT	Severe Thunderstorm Warning	FSD	Moody	33 min

Nearby

Tornado Warnings in South Dakota, 2002 Every tornado warning in 2002 Tornadoes in 2002

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.