Alert archive / Nebraska / Severe Thunderstorm Watches in 2005
Severe Thunderstorm Watch 779
The Storm Prediction Center issued this severe thunderstorm watch at Sep 12, 2005, 5:55 PM CDT for 4 counties in Kansas; 24 counties in Nebraska. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 12, 2005, 5:55 PM CDT (22:55 UTC)
- Expired
- Sep 12, 2005, 10:10 PM CDT
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 28 counties
Jewell County, KS, Mitchell County, KS, Osborne County, KS, Smith County, KS, Adams County, NE, Antelope County, NE, Boone County, NE, Boyd County, NE, Buffalo County, NE, Clay County, NE, Franklin County, NE, Garfield County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Holt County, NE, Howard County, NE, Kearney County, NE, Knox County, NE, Madison County, NE, Merrick County, NE, Nance County, NE, Nuckolls County, NE, Pierce County, NE, Sherman County, NE, Valley County, NE, Webster County, NE, Wheeler County, NE
The radar
The Grand Island radar (KUEX), 129 km from the middle of the area, began a volume at 22:56 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
13 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 12, 6:34 PM CDT | Severe Thunderstorm Warning | GID | Valley | 56 min |
| Sep 12, 6:34 PM CDT | Severe Thunderstorm Warning | LBF | Garfield, Wheeler | 56 min |
| Sep 12, 6:44 PM CDT | Severe Thunderstorm Warning | GID | Adams | 61 min |
| Sep 12, 6:58 PM CDT | Tornado Warning | GID | Valley | 62 min |
| Sep 12, 7:11 PM CDT | Severe Thunderstorm Warning | GID | Osborne | 26 min |
| Sep 12, 7:23 PM CDT | Severe Thunderstorm Warning | LBF | Holt | 37 min |
| Sep 12, 7:30 PM CDT | Severe Thunderstorm Warning | LBF | Garfield, Wheeler | 44 min |
| Sep 12, 8:00 PM CDT | Severe Thunderstorm Warning | LBF | Holt | 15 min |
| Sep 12, 8:06 PM CDT | Severe Thunderstorm Warning | OAX | Antelope, Knox | 39 min |
| Sep 12, 8:41 PM CDT | Severe Thunderstorm Warning | OAX | Antelope | 34 min |
| Sep 12, 8:56 PM CDT | Severe Thunderstorm Warning | OAX | Pierce | 34 min |
| Sep 12, 9:13 PM CDT | Severe Thunderstorm Warning | OAX | Antelope | 32 min |
| Sep 12, 9:24 PM CDT | Severe Thunderstorm Warning | OAX | Cedar, Knox | 36 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, 10.9 hours before the alert went out and 178 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
- 136 J/kg
- Mixed-layer CIN
- -421 J/kg
- Mixed-layer LCL
- 1172 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 148 m²/s²
- 0-3 km storm-relative helicity
- 189 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 |
|---|---|---|---|---|
| Sep 12, 5:20 PM CDT | Mesoscale Discussion | SPC | Clark, Comanche, Edwards, Ford, Hodgeman, Kiowa and 4 more | 115 min |
| Sep 12, 5:31 PM CDT | Mesoscale Discussion | SPC | Jewell, Phillips, Smith | 59 min |
| Sep 12, 3:40 PM CDT | Tornado Watch | SPC | Boyd | 4 hr |
| Sep 12, 5:25 PM CDT | Mesoscale Discussion | SPC | Dawes | 2 hr |
| Sep 12, 6:47 PM CDT | Mesoscale Discussion | SPC | Boyd | 88 min |
Nearby
Severe Thunderstorm Watches in Nebraska, 2005Severe Thunderstorm Watches in Kansas, 2005Every severe thunderstorm watch in 2005
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.