Alert archive / Nebraska / Severe Thunderstorm Watches in 2004
Severe Thunderstorm Watch 776
The Storm Prediction Center issued this severe thunderstorm watch at Aug 23, 2004, 4:05 PM MDT for 4 states. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 23, 2004, 4:05 PM MDT (22:05 UTC)
- Expired
- Aug 23, 2004, 10:00 PM MDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 47 counties
Kit Carson County, CO, Phillips County, CO, Sedgwick County, CO, Yuma County, CO, Cheyenne County, KS, Decatur County, KS, Rawlins County, KS, Sherman County, KS, Thomas County, KS, Arthur County, NE, Blaine County, NE, Brown County, NE, Chase County, NE, Cherry County, NE, Deuel County, NE, Dundy County, NE, Frontier County, NE, Garden County, NE, Grant County, NE, Hayes County, NE, Hitchcock County, NE, Hooker County, NE, Keith County, NE, Keya Paha County, NE, Lincoln County, NE, Logan County, NE, McPherson County, NE, Perkins County, NE, Red Willow County, NE, Rock County, NE, Thomas County, NE, Bennett County, SD, Brule County, SD, Buffalo County, SD, Gregory County, SD, Haakon County, SD, Hand County, SD, Hughes County, SD, Hyde County, SD, Jackson County, SD, Jones County, SD, Lyman County, SD, Mellette County, SD, Stanley County, SD, Sully County, SD, Todd County, SD, Tripp County, SD
The radar
The North Platte radar (KLNX), 90 km from the middle of the area, began a volume at 22:09 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.
Warnings issued inside it
8 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 4:24 PM MDT | Severe Thunderstorm Warning | LBF | Blaine | 66 min |
| Aug 23, 5:16 PM MDT | Severe Thunderstorm Warning | UNR | Tripp | 59 min |
| Aug 23, 5:29 PM MDT | Severe Thunderstorm Warning | LBF | Blaine | 61 min |
| Aug 23, 5:41 PM MDT | Severe Thunderstorm Warning | UNR | Tripp | 64 min |
| Aug 23, 5:51 PM MDT | Tornado Warning | LBF | Blaine | 39 min |
| Aug 23, 6:41 PM MDT | Severe Thunderstorm Warning | UNR | Tripp | 64 min |
| Aug 23, 6:45 PM MDT | Severe Thunderstorm Warning | LBF | Custer, Logan | 60 min |
| Aug 23, 7:42 PM MDT | Severe Thunderstorm Warning | UNR | Tripp | 63 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 10.1 hours before the alert went out and 71 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
- 1019 J/kg
- Mixed-layer CIN
- -169 J/kg
- Mixed-layer LCL
- 1454 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 94 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 1:14 AM MDT | Mesoscale Discussion | SPC | Barber, Butler, Chautauqua, Clark, Comanche, Cowley and 7 more | 2 hr |
| Aug 23, 2:37 PM MDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Graham, Norton, Osborne, Phillips and 7 more | 113 min |
| Aug 23, 2:48 PM MDT | Mesoscale Discussion | SPC | Barber, Clark, Comanche, Edwards, Finney, Ford and 9 more | 117 min |
| Aug 23, 4:34 PM MDT | Mesoscale Discussion | SPC | Allen, Anderson, Atchison, Bourbon, Brown, Chase and 30 more | 116 min |
| Aug 23, 5:15 PM MDT | Tornado Watch | SPC | Allen, Anderson, Atchison, Bourbon, Brown, Chase and 27 more | 7 hr |
| Aug 23, 1:58 PM MDT | Mesoscale Discussion | SPC | Antelope, Boone, Burt, Butler, Cass, Cedar and 23 more | 2 hr |
| Aug 22, 6:32 PM MDT | Mesoscale Discussion | SPC | Bennett, Jackson, Mellette, Oglala Lakota, Pennington | 118 min |
| Aug 23, 1:22 PM MDT | Mesoscale Discussion | SPC | Bennett, Brule, Buffalo, Campbell, Corson, Dewey and 20 more | 113 min |
| Aug 23, 2:25 PM MDT | Tornado Watch | SPC | Campbell, Corson, Dewey, Edmunds, Faulk, Perkins and 3 more | 6 hr |
| Aug 23, 4:30 PM MDT | Mesoscale Discussion | SPC | Brookings, Clark, Codington, Day, Deuel, Grant and 6 more | 2 hr |
| Aug 23, 5:02 PM MDT | Mesoscale Discussion | SPC | Campbell, Corson, Dewey, Edmunds, Faulk, Perkins and 3 more | 88 min |
Nearby
Severe Thunderstorm Watches in Nebraska, 2004Severe Thunderstorm Watches in South Dakota, 2004Severe Thunderstorm Watches in Kansas, 2004Every severe thunderstorm watch in 2004
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.