Alert archive / Nebraska / Severe Thunderstorm Watches in 2005
Severe Thunderstorm Watch 162
The Storm Prediction Center issued this severe thunderstorm watch at Apr 18, 2005, 8:45 PM CDT for 4 states. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 18, 2005, 8:45 PM CDT (01:45 UTC)
- Expired
- Apr 19, 2005, 2:00 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 44 counties
Adair County, IA, Adams County, IA, Audubon County, IA, Cass County, IA, Fremont County, IA, Guthrie County, IA, Harrison County, IA, Mills County, IA, Montgomery County, IA, Page County, IA, Pottawattamie County, IA, Shelby County, IA, Brown County, KS, Clay County, KS, Cloud County, KS, Geary County, KS, Jackson County, KS, Lincoln County, KS, Marshall County, KS, Nemaha County, KS, Ottawa County, KS, Pottawatomie County, KS, Republic County, KS, Riley County, KS, Wabaunsee County, KS, Washington County, KS, Atchison County, MO, Cass County, NE, Dodge County, NE, Douglas County, NE, Gage County, NE, Jefferson County, NE, Johnson County, NE, Lancaster County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Richardson County, NE, Saline County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Thayer County, NE, Washington County, NE
The radar
The Topeka radar (KTWX), 126 km from the middle of the area, began a volume at 01:46 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
23 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 18, 8:56 PM CDT | Severe Thunderstorm Warning | OAX | Saline | 34 min |
| Apr 18, 8:58 PM CDT | Severe Thunderstorm Warning | TOP | Republic | 47 min |
| Apr 18, 9:13 PM CDT | Tornado Warning | GID | Thayer | 47 min |
| Apr 18, 9:13 PM CDT | Severe Thunderstorm Warning | OAX | Douglas, Saunders | 32 min |
| Apr 18, 9:16 PM CDT | Severe Thunderstorm Warning | OAX | Dodge | 29 min |
| Apr 18, 9:29 PM CDT | Severe Thunderstorm Warning | OAX | Jefferson | 31 min |
| Apr 18, 9:45 PM CDT | Severe Thunderstorm Warning | TOP | Republic | 60 min |
| Apr 18, 9:55 PM CDT | Severe Thunderstorm Warning | OAX | Saline | 35 min |
| Apr 18, 9:58 PM CDT | Severe Thunderstorm Warning | OAX | Gage, Jefferson | 62 min |
| Apr 18, 10:00 PM CDT | Severe Thunderstorm Warning | GID | Nuckolls, Thayer | 60 min |
| Apr 18, 10:11 PM CDT | Flash Flood Warning | OAX | Jefferson, Saline | 6 hr |
| Apr 18, 10:40 PM CDT | Severe Thunderstorm Warning | OAX | Washington | 35 min |
| Apr 18, 10:46 PM CDT | Severe Thunderstorm Warning | TOP | Republic, Washington | 59 min |
| Apr 18, 10:53 PM CDT | Tornado Warning | GID | Nuckolls, Thayer | 39 min |
| Apr 18, 10:55 PM CDT | Flash Flood Warning | TOP | Republic | 3 hr |
| Apr 18, 10:57 PM CDT | Severe Thunderstorm Warning | OAX | Gage | 34 min |
| Apr 18, 10:59 PM CDT | Tornado Warning | TOP | Republic | 61 min |
| Apr 18, 11:30 PM CDT | Tornado Warning | GID | Thayer | 30 min |
| Apr 18, 11:48 PM CDT | Severe Thunderstorm Warning | OAX | Harrison | 42 min |
| Apr 18, 11:50 PM CDT | Severe Thunderstorm Warning | GID | Thayer | 55 min |
| Apr 18, 11:54 PM CDT | Severe Thunderstorm Warning | OAX | Lancaster | 36 min |
| Apr 18, 11:55 PM CDT | Severe Thunderstorm Warning | TOP | Republic | 50 min |
| Apr 19, 12:43 AM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 47 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
Omaha, NE (KOAX), launched 00:00Z, 1.8 hours before the alert went out and 142 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
- 1986 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 967 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 42 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 |
|---|---|---|---|---|
| Apr 18, 8:27 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Cass, Dallas, Fremont and 7 more | 63 min |
| Apr 18, 11:22 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Cass, Fremont, Guthrie and 6 more | 83 min |
| Apr 19, 1:45 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Carroll, Cass and 17 more | 30 min |
| Apr 19, 10:48 AM CDT | Mesoscale Discussion | SPC | Appanoose, Benton, Black Hawk, Bremer, Buchanan, Butler and 27 more | 57 min |
| Apr 19, 5:49 PM CDT | Mesoscale Discussion | SPC | Clark, Comanche, Edwards, Ford, Gove, Graham and 13 more | 116 min |
| Apr 19, 2:04 PM CDT | Mesoscale Discussion | SPC | Banner, Cheyenne, Kimball | 86 min |
| Apr 19, 3:30 PM CDT | Severe Thunderstorm Watch | SPC | Arthur, Brown, Chase, Cherry, Cheyenne, Deuel and 11 more | 7 hr |
Nearby
Severe Thunderstorm Watches in Nebraska, 2005Severe Thunderstorm Watches in Kansas, 2005Severe Thunderstorm Watches in Iowa, 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.