Alert archive / South Dakota / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 7, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 19, 1997, 9:39 PM CDT for Lincoln County, South Dakota. It was in force for 31 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
- Jun 19, 1997, 9:39 PM CDT (02:39 UTC)
- Expired
- Jun 19, 1997, 10:10 PM CDT
- In force
- 31 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
County Lincoln County, SD
The radar
The Sioux Falls radar (KFSD), 34 km from the middle of the area, began a volume at 02:42 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 |
|---|---|---|---|
| Jun 19, 9:30 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 2.7 hours before the alert went out and 220 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
- 1320 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 2762 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 58 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFSD 200239 RRA SVRFSD SDC083-087-099-125-200310- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 939 PM CDT THU JUN 19 1997 * SEVERE THUNDERSTORM WARNING FOR NORTHERN LINCOLN COUNTY - IN SOUTHEASTERN SOUTH DAKOTA SOUTHEASTERN MCCOOK COUNTY - IN SOUTHEASTERN SOUTH DAKOTA SOUTHERN MINNEHAHA COUNTY - IN SOUTHEASTERN SOUTH DAKOTA NORTHERN TURNER COUNTY - IN SOUTHEASTERN SOUTH DAKOTA * UNTIL 1010 PM CDT * SOME AREAS AFFECTED DOLTON AROUND 940 PM CDT MARION AROUND 940 PM CDT MONROE AROUND 950 PM CDT HURLEY AROUND 950 PM CDT PARKER AROUND 950 PM CDT PUMPKIN CENTER AROUND 1000 PM CDT CHANCELLOR AROUND 1005 PM CDT * AT 937 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 31 MILES WEST OF SIOUX FALLS OR IN THE VICINITY OF DO~LTON MOVING EAST AT 35 MPH.
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 Jun 19, 8:29 PM CDT, 1 hour 10 minutes earlier.
Area forecast discussion, Jun 19, 8:29 PM CDT, 1 hour 10 minutes before
SOUTH DAKOTA/NORTHWEST IOWA/SOUTHWEST MINNESOTA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SIOUX FALLS SD 830 PM CDT WED JUN 18 1997 SEVERE THUNDERSTORM POTENTIAL HAS NOT DEVELOPED AS WELL AS EARLIER EXPECTED AND SOME ADJUSTMENT TO EARLIER CWA ZONES WILL BE MADE. WILL ADJUST ZONES IN LINE WITH SPC CHANGES TO WATCH AREA WHICH IS ANTICIPATED AROUND 9 PM. WILL LOWER THE POPS FOR LATER TONIGHT FOLLOWING THE THUNDERSTORMS MOVING ALONG THE SOUTHEAST BORDER. POTENTIAL FOR SEVERE THUNDERSTORMS YET THROUGH MIDNIGHT FROM AROUND YANKTON ON EAST INTO NORTHWEST IOWA AS THE THUNDERSTORMS MOVE INTO THAT AREA. .FSD...NONE UMLAND
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 9:06 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson, Turner | 34 min |
| Jun 19, 9:39 PM CDT | Severe Thunderstorm Warning | FSD | McCook, Minnehaha, Turner | 31 min |
| Jun 19, 11:13 PM CDT | Severe Thunderstorm Warning | FSD | Brule | 32 min |
| Jun 19, 11:46 PM CDT | Severe Thunderstorm Warning | FSD | Brule | 34 min |
| Jun 19, 11:49 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Jerauld | 31 min |
| Jun 20, 12:25 AM CDT | Severe Thunderstorm Warning | FSD | Beadle | 35 min |
| Jun 20, 3:05 AM CDT | Severe Thunderstorm Warning | FSD | Brule | 45 min |
| Jun 20, 3:23 AM CDT | Severe Thunderstorm Warning | FSD | Turner | 32 min |
| Jun 20, 3:40 AM CDT | Severe Thunderstorm Warning | FSD | Aurora | 50 min |
| Jun 20, 4:05 AM CDT | Severe Thunderstorm Warning | FSD | Brule | 35 min |
| Jun 20, 4:13 AM CDT | Severe Thunderstorm Warning | FSD | Davison | 32 min |
| Jun 20, 4:32 AM CDT | Severe Thunderstorm Warning | FSD | Hanson | 33 min |
| Jun 20, 4:41 AM CDT | Severe Thunderstorm Warning | FSD | Brule | 19 min |
| Jun 20, 4:45 AM CDT | Severe Thunderstorm Warning | FSD | Aurora, Douglas | 30 min |
| Jun 20, 5:00 AM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 30 min |
| Jun 20, 5:14 AM CDT | Severe Thunderstorm Warning | FSD | Turner | 31 min |
| Jun 20, 5:19 AM CDT | Severe Thunderstorm Warning | FSD | Douglas, Hutchinson | 36 min |
| Jun 20, 5:32 AM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Minnehaha | 33 min |
| Jun 20, 5:59 AM CDT | Severe Thunderstorm Warning | FSD | Hutchinson, Yankton | 31 min |
| Jun 20, 6:38 AM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Union | 32 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 1997Every severe thunderstorm warning 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.