Alert archive / South Dakota / Tornado Warnings in 1996
Tornado Warning 16, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this tornado warning at Aug 6, 1996, 6:15 PM CDT for Lake County, Miner County, South Dakota. It was in force for 35 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
- Aug 6, 1996, 6:15 PM CDT (23:15 UTC)
- Expired
- Aug 6, 1996, 6:50 PM CDT
- In force
- 35 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
Counties Lake County, SD, Miner County, SD
The radar
The Sioux Falls radar (KFSD), 71 km from the middle of the area, began a volume at 23:14 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 |
|---|---|---|---|
| Aug 6, 6:40 PM CDT | Thunderstorm Wind 65 | Canova, SD | |
| Aug 6, 6:50 PM CDT | Thunderstorm Wind 53 | Madison, 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 12:00Z, 11.3 hours before the alert went out and 127 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
- 1082 J/kg
- Mixed-layer CIN
- -456 J/kg
- Mixed-layer LCL
- 1178 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 318 m²/s²
- 0-3 km storm-relative helicity
- 222 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFSD 062315 TORFSD SDC079-097-062350- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 615 PM CDT TUE AUG 6 1996 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS SD HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 650 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN EAST CENTRAL SOUTH DAKOTA ...NORTHERN LAKE COUNTY ...EASTERN MINER COUNTY AT 615 PM CDT...A DEVELOPING TORNADO WAS INDICATED BY SIOUX FALLS DOPPLER RADAR 32 MILES SOUTHWEST OF BROOKINGS OR 7 MILES SOUTHWEST OF RAMONA MOVING NORTHEAST AT 25 MPH. AT PRESENT MOVEMENT THE TORNADO WILL BE AROUND... RAMONA AROUND 631 PM CDT IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE 2IN A HOME OR BUSINESS IS AN INTERIOR ROOM ON THE LOWEST FLOOR POSSIBLE. AVOID WINDOWS. HOLMES
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
Special weather statement, Aug 6, 1:50 PM CDT, 4 hours 25 minutes before
SDZ040-055-056-061-062-065>071-IAZ001>003-012>014-020>022-031-032- MNZ097-098-NEZ013-014-062300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 150 PM CDT TUE AUG 6 1996 ...SEVERE THUNDERSTORMS EXPECTED OVER PARTS OF SOUTHEAST SOUTH DAKOTA...SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA BY THIS EVENING... A VERY MOIST AND EXTREMELY UNSTABLE AIR MASS IS BLANKETING MUCH OF THE AREA THIS AFTERNOON. SCATTERED THUNDERSTORMS ARE EXPECTED TO ERUPT ALONG A COLD FRONT MOVING VERY SLOWLY EAST THROUGH EASTERN SOUTH DAKOTA. AT THIS TIME...DEVELOPMENT IS EXPECTED TO INITIATE ALONG THE FRONT LATE THIS AFTERNOON FROM BROOKINGS TO YANKTON. CONDITIONS ARE FAVORABLE FOR MANY OF THESE THUNDERSTORMS TO BECOME SEVERE AND PRODUCE LARGE HAIL...DAMAGING WIND..AND TORRENTIAL RAIN. STORMS WILL PLOW INTO ADJACENT AREAS OF NORTHEAST NEBRASKA...NORTHWEST IOWA...AND SOUTHWEST MINNESOTA BY EARLY EVENING. STAY TUNED TO NOAA WEATHER RADIO OR ANOTHER RELIABLE WEATHER NEWS SOURCE FOR THE LATEST INFORMATION ON THIS DEVELOPING SEVERE WEATHER SITUATION. CHAPMAN
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 5:18 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix | 47 min |
| Aug 6, 5:46 PM CDT | Severe Thunderstorm Warning | FSD | Lake, Miner | 29 min |
| Aug 6, 5:46 PM CDT | Tornado Warning | FSD | Davison | 34 min |
| Aug 6, 5:54 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme | 46 min |
| Aug 6, 5:54 PM CDT | Tornado Warning | FSD | Aurora | 21 min |
| Aug 6, 6:04 PM CDT | Tornado Warning | FSD | Sanborn | 31 min |
| Aug 6, 6:20 PM CDT | Tornado Warning | FSD | Davison | 35 min |
| Aug 6, 6:24 PM CDT | Tornado Warning | FSD | Bon Homme | 31 min |
| Aug 6, 6:27 PM CDT | Tornado Warning | FSD | Lake, McCook | 33 min |
| Aug 6, 6:36 PM CDT | Tornado Warning | FSD | Miner, Sanborn | 34 min |
| Aug 6, 6:41 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Kingsbury | 34 min |
| Aug 6, 6:42 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson, Turner | 48 min |
| Aug 6, 6:50 PM CDT | Tornado Warning | FSD | Lake | 35 min |
| Aug 6, 6:56 PM CDT | Severe Thunderstorm Warning | FSD | Sanborn | 34 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.