Alert archive / South Dakota / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 251, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Aug 16, 2000, 6:41 PM CDT for Yankton County, South Dakota. It was in force for 34 min. 4 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 16, 2000, 6:41 PM CDT (23:41 UTC)
- Expired
- Aug 16, 2000, 7:15 PM CDT
- In force
- 34 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
County Yankton County, SD
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 16, 6:47 PM CDT | Thunderstorm Wind 52 E | Lesterville, SD | |
| Aug 16, 6:52 PM CDT | Thunderstorm Wind 61 E | Yankton, SD | Thunderstorm winds caused tree and power line damage. There was also some damage to vehicles from tree debris. |
| Aug 16, 6:52 PM CDT | Hail 0.88 | Yankton, SD | |
| Aug 16, 7:13 PM CDT | Thunderstorm Wind 52 E | Gayville, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 16, 4:30 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 11.7 hours before the alert went out and 206 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
- 277 J/kg
- Mixed-layer CIN
- -476 J/kg
- Mixed-layer LCL
- 1022 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 74 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 Aug 16, 3:25 PM CDT, 3 hours 16 minutes earlier.
Area forecast discussion, Aug 16, 3:25 PM CDT, 3 hours 16 minutes before
AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA NATIONAL WEATHER SERVICE SIOUX FALLS SD 325 PM CDT WED AUG 16 2000 DO NOT SEE MUCH OF A NEED TO OVERSTATE THE OBVIOUS. PLENTY OF LIFT IN THE AREA WITH VERY HIGH POPS IN PLACE FOR TNGT. OVERALL FOLLOWED AN ETA/AVN SOLN. WAA SHOWERS/TSTMS MOSTLY N AND E OF THE CWA ATTM...WITH MUCH OF SW SD/NEBRASKA CAPPED. SIGNIFICANT COOLING 700-500MB EXPECTED TO EASILY BREAK CAP THIS EVENING WITH RAPIDLY DEVELOPING TSTMS EXPECTED. SPC 20Z RISK OF SVR WX AND DISCUSSION PRETTY MUCH IN LINE WITH WHAT FSD IS SEEING. WITH CAA AND SUBSIDENCE AFTER MIDNIGHT...PCPN SHOULD END FM NW TO SE TNGT. 12Z ETA HINTING OF FOG OR LOW STATUS BY LATE TNGT AND THU MRNG. NRLY WINDS AND SPEED NOT VERY CONDUCTIVE FOR FOG DEVELOPMENT...BUT WL MENTION PSBLTY OF LO CLOUDS. WHILE MDLS ARE PRETTY DRY...WITH UPPER LVL TROF TO THE NE AND COOLER TEMPS ALF EXPECT TO SEE CU EASILY FORM DURING THE DAY. MOS/FAN NOT TOO BAD IN TEMPS...WITH A BLEND USED IN THE PKG. IN THE EXTENDED FCST PKG...MAINLY SAT AND MON WL BE BEST CHC FOR SVR WX WITH TEMPS ABOUT STATUS QUO. TSTMS MON INTO TUE COULD BE VERY INTERESTING WITH SIGNIFICANT NW CONUS TROF EXPECTED TO MOVE INTO THE NRN PLAINS. .FSD...NONE BR
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 4:38 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix | 37 min |
| Aug 16, 5:44 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix | 31 min |
| Aug 16, 6:10 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson, McCook, Turner | 35 min |
| Aug 16, 6:18 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme | 27 min |
| Aug 16, 6:37 PM CDT | Tornado Warning | FSD | Bon Homme, Yankton | 23 min |
| Aug 16, 6:57 PM CDT | Severe Thunderstorm Warning | FSD | Clay | 48 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 2000Every severe thunderstorm warning in 2000
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.