Alert archive / South Dakota / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 256, NWS Rapid City, SD
NWS Rapid City, SD issued this severe thunderstorm warning at Aug 11, 2000, 6:14 PM MDT for Meade County, Pennington County, South Dakota. It was in force for 46 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 11, 2000, 6:14 PM MDT (00:14 UTC)
- Expired
- Aug 11, 2000, 7:00 PM MDT
- In force
- 46 min
- Issued by
- NWS Rapid City, SD
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Meade County, SD, Pennington County, SD
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 11, 6:17 PM MDT | Thunderstorm Wind 52 E | Hereford, 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
Rapid City, SD (KUNR), launched 00:00Z, 0.2 hours before the alert went out and 26 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
- 795 J/kg
- Mixed-layer CIN
- -50 J/kg
- Mixed-layer LCL
- 3260 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
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 Rapid City, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 11, 2:00 PM MDT, 4 hours 14 minutes earlier.
Area forecast discussion, Aug 11, 2:00 PM MDT, 4 hours 14 minutes before
AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY NATIONAL WEATHER SERVICE RAPID CITY SD 200 PM MDT FRI AUG 11 2000 LATEST SFC ANALYSIS INDC LOW OVER WRN ND WITH COLD FRONT ACROSS EXTREME NW SD AND INTO NW WY. KUDX RADAR INDC FEW ISOLD TSTMS OVER NRN BLACK HILLS FOOTHILLS AND OVER NE WY PLAINS. SATELLITE REVEALS PRETTY GOOD CU DEVELOPMENT OVER NE WY. MODELS INITIALIZE WELL AND SHOW PRETTY GOOD AGREEMENT. WILL EXPECT S/WV TO PUSH THROUGH MT/ND THIS EVE WITH GOOD DRYING BEHIND IT. ISOLD TSTMS THIS EVE...MAINLY ALONG FRONTAL BOUNDARY...WITH VERY LITTLE ASSOC PRECIP. WEAK CAA WILL SET UP TONIGHT KEEPING TEMPS IN THE 90S FOR SATURDAY. SUNDAY WILL SEE A RETURN OF WARM AIR...AND A LITTLE MOISTURE. A SLGHT CHANCE OF AFTNOON TSTMS IN CENT SD ZONES SUN WITH HIGHS A LITTLE WARMER ON SUN. OTHERWISE WILL LOOK FOR RIDGE TO FLATTEN OVER THE NRN PLAINS THROUGH 72HRS AS UPPER LOW DEVELOPS OFF THE WA COAST. THIS NO DOUBT WILL SEND SPURIOUS S/WV ENERGY OVER THE NRN PLAINS. WITH VERY LIMITED MOISTURE WILL CALL IT DRY...HOWEVER AN ISOLD TSTM OR TWO IS POSSIBLE DAYS 4 AND 5. .UNR...RED FLAG WARNING NE WY AND BLACK HILLS. MURPHY c
The office that day
Everything else NWS Rapid City, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 9:10 PM MDT | Severe Thunderstorm Warning | UNR | Harding | 50 min |
| Aug 11, 10:00 PM MDT | Severe Thunderstorm Warning | UNR | Harding | 60 min |
| Aug 11, 10:17 PM MDT | Severe Thunderstorm Warning | UNR | Perkins | 58 min |
| Aug 11, 10:24 PM MDT | Tornado Warning | UNR | Fall River | 66 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.