Alert archive / South Dakota / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 39, NWS Rapid City, SD
NWS Rapid City, SD issued this severe thunderstorm warning at Jun 24, 2002, 8:08 PM CDT for Tripp County, South Dakota. It was in force for 52 min. 3 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
- Jun 24, 2002, 8:08 PM CDT (01:08 UTC)
- Expired
- Jun 24, 2002, 9:00 PM CDT
- In force
- 52 min
- Issued by
- NWS Rapid City, SD
- Area
- Counties, with a storm outline in the text
County Tripp County, SD
The radar
The North Platte radar (KLNX), 164 km from the middle of the area, began a volume at 01:09 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 |
|---|---|---|---|
| Jun 24, 8:20 PM CDT | Hail 0.75 | Clearfield, SD | |
| Jun 24, 9:05 PM CDT | Hail 1 | Winner, SD | |
| Jun 24, 9:06 PM CDT | Thunderstorm Wind 54 M | Winner Arpt, 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 |
|---|---|---|---|
| Jun 24, 5:45 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 1.1 hours before the alert went out and 209 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
- 1326 J/kg
- Mixed-layer CIN
- -81 J/kg
- Mixed-layer LCL
- 2283 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- -21 m²/s²
- 0-3 km storm-relative helicity
- 14 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
The office that day
Everything else NWS Rapid City, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 8:01 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 29 min |
| Jun 24, 8:57 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 63 min |
| Jun 24, 9:20 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Pennington | 55 min |
| Jun 24, 9:32 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 28 min |
| Jun 25, 12:05 AM CDT | Severe Thunderstorm Warning | UNR | Bennett | 55 min |
| Jun 25, 3:00 AM CDT | Severe Thunderstorm Warning | UNR | Pennington | 45 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 2002Every severe thunderstorm warning in 2002
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.