Alert archive / South Dakota / Severe Thunderstorm Watches in 2000
Severe Thunderstorm Watch 262
The Storm Prediction Center issued this severe thunderstorm watch at May 11, 2000, 1:30 AM CDT for 16 counties in Nebraska; 32 counties in South Dakota. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- May 11, 2000, 1:30 AM CDT (06:30 UTC)
- Expired
- May 11, 2000, 7:00 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 48 counties
Blaine County, NE, Boyd County, NE, Brown County, NE, Cedar County, NE, Cherry County, NE, Dixon County, NE, Garden County, NE, Grant County, NE, Holt County, NE, Hooker County, NE, Keya Paha County, NE, Knox County, NE, Pierce County, NE, Rock County, NE, Sheridan County, NE, Thomas County, NE, Aurora County, SD, Bennett County, SD, Bon Homme County, SD, Brookings County, SD, Brule County, SD, Buffalo County, SD, Charles Mix County, SD, Clay County, SD, Davison County, SD, Douglas County, SD, Gregory County, SD, Hanson County, SD, Hutchinson County, SD, Jackson County, SD, Jerauld County, SD, Jones County, SD, Kingsbury County, SD, Lake County, SD, Lincoln County, SD, Lyman County, SD, McCook County, SD, Mellette County, SD, Miner County, SD, Minnehaha County, SD, Moody County, SD, Oglala Lakota County, SD, Sanborn County, SD, Todd County, SD, Tripp County, SD, Turner County, SD, Union County, SD, Yankton County, SD
The radar
The North Platte radar (KLNX), 140 km from the middle of the area, began a volume at 06:29 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
10 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 11, 1:38 AM CDT | Severe Thunderstorm Warning | LBF | Cherry | 67 min |
| May 11, 2:18 AM CDT | Severe Thunderstorm Warning | UNR | Tripp | 47 min |
| May 11, 2:25 AM CDT | Tornado Warning | UNR | Tripp | 30 min |
| May 11, 2:48 AM CDT | Severe Thunderstorm Warning | FSD | Gregory | 42 min |
| May 11, 2:56 AM CDT | Severe Thunderstorm Warning | UNR | Tripp | 14 min |
| May 11, 3:18 AM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Gregory | 42 min |
| May 11, 3:40 AM CDT | Severe Thunderstorm Warning | FSD | Douglas | 50 min |
| May 11, 4:15 AM CDT | Severe Thunderstorm Warning | FSD | Hutchinson | 30 min |
| May 11, 4:36 AM CDT | Tornado Warning | FSD | Hutchinson | 24 min |
| May 11, 6:03 AM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 27 min |
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 6.5 hours before the alert went out and 231 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
- 2278 m above ground
- 0-6 km bulk shear
- 72 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 400 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.
Nearby
Severe Thunderstorm Watches in South Dakota, 2000Severe Thunderstorm Watches in Nebraska, 2000Every severe thunderstorm watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.