Alert archive / South Dakota / Severe Thunderstorm Watches in 2001
Severe Thunderstorm Watch 377
The Storm Prediction Center issued this severe thunderstorm watch at Jun 6, 2001, 3:00 PM CDT for 14 counties in Nebraska; 20 counties in South Dakota. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 6, 2001, 3:00 PM CDT (20:00 UTC)
- Expired
- Jun 6, 2001, 8:00 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 34 counties
Blaine County, NE, Boyd County, NE, Brown County, NE, Custer County, NE, Garfield County, NE, Holt County, NE, Hooker County, NE, Keith County, NE, Keya Paha County, NE, Logan County, NE, Loup County, NE, McPherson County, NE, Rock County, NE, Thomas County, NE, Aurora County, SD, Beadle County, SD, Brookings County, SD, Brule County, SD, Buffalo County, SD, Charles Mix County, SD, Davison County, SD, Douglas County, SD, Gregory County, SD, Hamlin County, SD, Hand County, SD, Hanson County, SD, Hutchinson County, SD, Jerauld County, SD, Kingsbury County, SD, Lake County, SD, McCook County, SD, Miner County, SD, Sanborn County, SD, Tripp County, SD
The radar
The North Platte radar (KLNX), 93 km from the middle of the area, began a volume at 20:02 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.
Warnings issued inside it
7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 6, 3:00 PM CDT | Severe Thunderstorm Warning | FSD | Gregory | 30 min |
| Jun 6, 3:35 PM CDT | Severe Thunderstorm Warning | FSD | Gregory | 25 min |
| Jun 6, 3:52 PM CDT | Severe Thunderstorm Warning | LBF | Boyd | 38 min |
| Jun 6, 3:55 PM CDT | Severe Thunderstorm Warning | LBF | Keya Paha | 50 min |
| Jun 6, 4:30 PM CDT | Severe Thunderstorm Warning | LBF | Boyd | 60 min |
| Jun 6, 4:32 PM CDT | Severe Thunderstorm Warning | LBF | Brown | 58 min |
| Jun 6, 7:28 PM CDT | Severe Thunderstorm Warning | ABR | Clark, Codington, Hamlin | 62 min |
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 8.0 hours before the alert went out and 172 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
- 84 J/kg
- Mixed-layer CIN
- -349 J/kg
- Mixed-layer LCL
- 1115 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 126 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
Nearby
Severe Thunderstorm Watches in South Dakota, 2001Severe Thunderstorm Watches in Nebraska, 2001Every severe thunderstorm watch in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.