Alert archive / South Dakota / Tornado Warnings in 1997
Tornado Warning 11, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this tornado warning at Jul 24, 1997, 10:33 PM CDT for Kingsbury County, South Dakota. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 24, 1997, 10:33 PM CDT (03:33 UTC)
- Expired
- Jul 24, 1997, 11:05 PM CDT
- In force
- 32 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
County Kingsbury County, SD
The radar
The Sioux Falls radar (KFSD), 106 km from the middle of the area, began a volume at 03:34 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 24, 10:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 3.6 hours before the alert went out and 93 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.
- Mixed-layer CAPE
- 2516 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 877 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.6
The text
As transmitted, in the capitals the NWS used until 2016.
034 WFUS1 KFSD 250334 RRA TORFSD SDC077-250405- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 1033 PM CDT THU JUL 24 1997 * TORNADO WARNING FOR KINGSBURY COUNTY IN EASTCENTRAL SOUTH DAKOTA * UNTIL 1105 PM CDT * THE TORNADO IS CURRENTLY EXPECTED TO REMAIN OVER RURAL AREAS. * AT 1030 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A DEVELOPING TORNADO 35 MILES EAST OF HURON NEAR DE SMET MOVING NORTHEAST AT 15 MPH. A SECOND SEVERE STORM WAS NEAR ESMOND MOVING NORTHEAST AT 15 MPH PEOPLE IN DESMET ARE IN THE PROJECTED PATH OF THE TORNADO AND SHOULD TAKE SHELTER IMMEDIATELY. MOVE INSIDE A STORM CELLAR... A BASEMENT...OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOUSE. UMLAND
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 7:15 PM CDT | Severe Thunderstorm Warning | FSD | Beadle | 35 min |
| Jul 24, 7:51 PM CDT | Severe Thunderstorm Warning | FSD | Beadle | 24 min |
| Jul 24, 8:12 PM CDT | Tornado Warning | FSD | Moody | 33 min |
| Jul 24, 8:18 PM CDT | Severe Thunderstorm Warning | FSD | Beadle | 32 min |
| Jul 24, 9:08 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Kingsbury | 47 min |
| Jul 24, 9:36 PM CDT | Severe Thunderstorm Warning | FSD | Hanson | 34 min |
| Jul 24, 9:49 PM CDT | Tornado Warning | FSD | Kingsbury | 31 min |
| Jul 24, 11:05 PM CDT | Tornado Warning | FSD | Kingsbury | 35 min |
| Jul 24, 11:41 PM CDT | Severe Thunderstorm Warning | FSD | Brookings | 49 min |
| Jul 25, 12:02 AM CDT | Tornado Warning | FSD | Kingsbury | 33 min |
Nearby
Tornado Warnings in South Dakota, 1997Every tornado warning in 1997Tornadoes in 1997
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.