Alert archive / Nebraska / Tornado Watches in 1999
Tornado Watch 382
The Storm Prediction Center issued this tornado watch at Jun 4, 1999, 5:15 PM MDT for 8 counties in Nebraska; 7 counties in South Dakota; 6 counties in Wyoming. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 4, 1999, 5:15 PM MDT (23:15 UTC)
- Expired
- Jun 5, 1999, 12:00 AM MDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
All 21 counties
Banner County, NE, Box Butte County, NE, Dawes County, NE, Garden County, NE, Morrill County, NE, Scotts Bluff County, NE, Sheridan County, NE, Sioux County, NE, Butte County, SD, Custer County, SD, Fall River County, SD, Lawrence County, SD, Meade County, SD, Oglala Lakota County, SD, Pennington County, SD, Campbell County, WY, Crook County, WY, Goshen County, WY, Niobrara County, WY, Platte County, WY, Weston County, WY
The radar
The Rapid City radar (KUDX), 76 km from the middle of the area, began a volume at 23:14 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
3 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 4, 5:30 PM MDT | Tornado Warning | CYS | Dawes | 15 min |
| Jun 4, 5:35 PM MDT | Tornado Warning | UNR | Fall River | 35 min |
| Jun 4, 5:50 PM MDT | Severe Thunderstorm Warning | LBF | Arthur, Garden, Keith | 65 min |
The nearest sounding before it
Rapid City, SD (KUNR), launched 12:00Z, 11.3 hours before the alert went out and 69 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
- 3401 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- -60 m²/s²
- 0-3 km storm-relative helicity
- 25 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.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 3, 6:45 PM MDT | Tornado Watch | SPC | Adams, Buffalo, Custer, Dawson, Franklin, Frontier and 10 more | 3 hr |
| Jun 3, 10:00 PM MDT | Severe Thunderstorm Watch | SPC | Antelope, Blaine, Boone, Boyd, Brown, Butler and 20 more | 6 hr |
| Jun 4, 1:30 AM MDT | Severe Thunderstorm Watch | SPC | Antelope, Boone, Boyd, Burt, Cedar, Cuming and 12 more | 7 hr |
| Jun 4, 3:00 PM MDT | Tornado Watch | SPC | Box Butte, Cherry, Dawes, Grant, Morrill, Scotts Bluff and 2 more | 5 hr |
| Jun 4, 5:45 PM MDT | Tornado Watch | SPC | Arthur, Blaine, Brown, Chase, Cherry, Custer and 21 more | 6 hr |
| Jun 4, 2:30 PM MDT | Tornado Watch | SPC | Beadle, Brown, Clark, Day, Edmunds, Faulk and 10 more | 6 hr |
Nearby
Tornado Watches in Nebraska, 1999Tornado Watches in South Dakota, 1999Tornado Watches in Wyoming, 1999Every tornado watch in 1999
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.