Alert archive / South Dakota / Tornado Warnings in 1996
Tornado Warning 27, NWS Aberdeen, SD
NWS Aberdeen, SD issued this tornado warning at Jul 17, 1996, 10:14 PM CDT for Clark County, Codington County, South Dakota. It was in force for 31 min. 2 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
- Jul 17, 1996, 10:14 PM CDT (03:14 UTC)
- Expired
- Jul 17, 1996, 10:45 PM CDT
- In force
- 31 min
- Issued by
- NWS Aberdeen, SD
- Area
- Whole counties
Counties Clark County, SD, Codington County, SD
The radar
The Aberdeen radar (KABR), 96 km from the middle of the area, began a volume at 03:16 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 17, 10:16 PM CDT | Hail 0.75 | Garden City, SD | |
| Jul 17, 10:31 PM CDT | Tornado F0 | Henry, 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, 3.2 hours before the alert went out and 74 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
- 4029 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 1079 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 109 m²/s²
- 0-3 km storm-relative helicity
- 168 m²/s²
- Significant tornado parameter
- 4.3
- Supercell composite
- 17.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KABR 180312 TORABR SDC025-029-180345- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE ABERDEEN SD 1014 PM CDT WED JUL 17 1996 THE NATIONAL WEATHER SERVICE IN ABERDEEN SD HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 1045 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHEAST SOUTH DAKOTA ...NORTHEASTERN CLARK COUNTY ...WESTERN CODINGTON COUNTY THE COMMUNITIES MOST THREATENED BY THIS TORNADO... BETWEEN BRADLEY AND GARDEN CITY THROUGH 1025 PM CDT. AT 1010 PM CDT...A DEVELOPING TORNADO WAS INDICATED BY ABERDEEN DOPPLER RADAR AND SPOTTER REPORTS 2 MILES NORTHEAST OF GARDEN CITY MOVING EAST AT 15 MPH. IF YOU ARE IN THE PATH OF THIS TORNADO...SEEK SHELTER IN A BASEMENT. GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM SUCH AS A CLOSET ON THE LOWEST FLOOR. USE BLANKETS... PILLOWS OR CUSHIONS TO COVER YOUR BODY. AVOID WINDOWS. HG/MM &
What forecasters said that day
The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Local storm report, Jul 17, 4:52 PM CDT, 5 hours 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
455 PM CDT WED JUL 17 1996
TIME(CDT) ...CITY LOCATION.... STATE ...EVENT/REMARKS....
...COUNTY LOCATION...
0442 PM 2 N ISABEL SD 1.75 HAIL
07/17/96 DEWEY
TDKLocal storm report, Jul 17, 5:05 PM CDT, 5 hours 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
507 PM CDT WED JUL 17 1996
TIME(CDT) ...CITY LOCATION.... STATE ...EVENT/REMARKS....
...COUNTY LOCATION...
0410 PM 8 NE GLAD VALLEY SD .75 HAIL
07/17/96 CORSON
TDKLocal storm report, Jul 17, 7:53 PM CDT, 2 hours 21 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
753 PM CDT WED JUL 17 1996
TIME(CDT) ...CITY LOCATION.... STATE ...EVENT/REMARKS....
...COUNTY LOCATION...
0706 PM 4 NE GROTON SD 1.00 HAIL
07/17/96 BROWN
0736 PM 6 E 1 N GROTON SD TORNADO
07/17/96 BROWN BRIEF TOUCHDOWN
0740 PM 15 E GROTON SD TORNADO
07/17/96 DAY BRIEF TOUCHDOWN
MGMLocal storm report, Jul 17, 7:57 PM CDT, 2 hours 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
755 PM CDT WED JUL 17 1996
TIME(CDT) ...CITY LOCATION.... STATE ...EVENT/REMARKS....
...COUNTY LOCATION...
0753 PM PIERPONT SD TORNADO
07/17/96 DAY
TDKLocal storm report, Jul 17, 8:01 PM CDT, 2 hours 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
801 PM CDT WED JUL 17 1996
TIME(CDT) ...CITY LOCATION.... STATE ...EVENT/REMARKS....
...COUNTY LOCATION...
0800 PM 2 E PIERPONT SD TORNADO
07/17/96 DAY LARGE TORNADO
MGMThe office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 7:24 PM CDT | Tornado Warning | ABR | Day | 46 min |
| Jul 17, 7:54 PM CDT | Tornado Warning | ABR | Day | 46 min |
| Jul 17, 8:25 PM CDT | Flash Flood Warning | ABR | Marshall | 35 min |
| Jul 17, 8:25 PM CDT | Severe Thunderstorm Warning | ABR | Marshall | 35 min |
| Jul 17, 8:40 PM CDT | Flash Flood Warning | ABR | Day, Roberts | 50 min |
| Jul 17, 8:40 PM CDT | Tornado Warning | ABR | Day, Roberts | 50 min |
| Jul 17, 9:33 PM CDT | Severe Thunderstorm Warning | ABR | Day | 47 min |
| Jul 17, 9:46 PM CDT | Severe Thunderstorm Warning | ABR | Clark | 49 min |
| Jul 17, 10:50 PM CDT | Tornado Warning | ABR | Codington | 45 min |
Nearby
Tornado Warnings in South Dakota, 1996Every tornado warning in 1996Tornadoes in 1996
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.