Alert archive / South Dakota / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 161, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Aug 6, 1996, 7:07 PM CDT for Douglas County, South Dakota. It was in force for 33 min. 1 report 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, 7:07 PM CDT (00:07 UTC)
- Expired
- Aug 6, 1996, 7:40 PM CDT
- In force
- 33 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
County Douglas County, SD
The radar
The Sioux Falls radar (KFSD), 134 km from the middle of the area, began a volume at 00:11 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, 7:20 PM CDT | Thunderstorm Wind 65 | Armour, 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, 0.1 hours before the alert went out and 168 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2080 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 242 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFSD 070008 SVRFSD SDC043-070040- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 707 PM CDT TUE AUG 6 1996 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS SD HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 740 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST SOUTH DAKOTA ...DOUGLAS COUNTY AT 707 PM CDT...A SEVERE THUNDERSTORM WAS INDICATED BY SIOUX FALLS DOPPLER RADAR 16 MILES NORTH OF LAKE ANDES OR 3 MILES SOUTH OF HARRISON MOVING EAST AT 30 MPH. THIS STORM CAN BE EXPECTED IN THE VICINITY OF... HARRISON AROUND 710 PM CDT CORSICA AROUND 720 PM CDT ARMOUR AROUND 725 &PM CDT SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH... DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HOLMES
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.
In the hours before
Special weather statement, Aug 6, 1:50 PM CDT, 5 hours 17 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, 7:02 PM CDT | Severe Thunderstorm Warning | FSD | McCook, Minnehaha | 33 min |
| Aug 6, 7:10 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme | 35 min |
| Aug 6, 7:14 PM CDT | Severe Thunderstorm Warning | FSD | Brookings | 36 min |
| Aug 6, 7:24 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 36 min |
| Aug 6, 7:31 PM CDT | Tornado Warning | FSD | Minnehaha | 34 min |
| Aug 6, 7:34 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson | 31 min |
| Aug 6, 7:38 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 32 min |
| Aug 6, 7:47 PM CDT | Tornado Warning | FSD | Brookings | 33 min |
| Aug 6, 7:53 PM CDT | Tornado Warning | FSD | Hutchinson | 32 min |
| Aug 6, 7:57 PM CDT | Severe Thunderstorm Warning | FSD | Lake, Miner | 48 min |
| Aug 6, 8:02 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 33 min |
| Aug 6, 8:13 PM CDT | Severe Thunderstorm Warning | FSD | Yankton | 32 min |
| Aug 6, 8:25 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Turner | 50 min |
| Aug 6, 8:51 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 34 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 1996Every severe thunderstorm warning 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.