Alert archive / Nebraska / Severe Thunderstorm Watches in 2004
Severe Thunderstorm Watch 557
The Storm Prediction Center issued this severe thunderstorm watch at Jul 4, 2004, 11:05 PM CDT for Fremont County, Mills County, Iowa; 9 counties in Kansas; 11 counties in Nebraska. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 4, 2004, 11:05 PM CDT (04:05 UTC)
- Expired
- Jul 5, 2004, 4:00 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 22 counties
Fremont County, IA, Mills County, IA, Brown County, KS, Clay County, KS, Jackson County, KS, Marshall County, KS, Nemaha County, KS, Pottawatomie County, KS, Riley County, KS, Shawnee County, KS, Washington County, KS, Cass 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, Seward County, NE
The radar
The Topeka radar (KTWX), 103 km from the middle of the area, began a volume at 04:08 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
7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 11:54 PM CDT | Severe Thunderstorm Warning | TOP | Clay, Cloud, Ottawa, Republic, Washington | 36 min |
| Jul 5, 12:25 AM CDT | Severe Thunderstorm Warning | TOP | Clay, Marshall, Pottawatomie, Riley, Washington | 35 min |
| Jul 5, 12:30 AM CDT | Severe Thunderstorm Warning | OAX | Gage, Jefferson, Saline | 60 min |
| Jul 5, 12:59 AM CDT | Severe Thunderstorm Warning | TOP | Marshall, Nemaha, Pottawatomie | 31 min |
| Jul 5, 1:29 AM CDT | Severe Thunderstorm Warning | TOP | Jackson, Pottawatomie | 31 min |
| Jul 5, 1:41 AM CDT | Severe Thunderstorm Warning | TOP | Douglas, Jefferson, Shawnee | 49 min |
| Jul 5, 1:55 AM CDT | Severe Thunderstorm Warning | TOP | Brown, Jackson, Nemaha | 50 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
Topeka, KS (KTOP), launched 00:00Z, 4.1 hours before the alert went out and 132 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
- 486 J/kg
- Mixed-layer CIN
- -310 J/kg
- Mixed-layer LCL
- 2387 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 67 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 |
|---|---|---|---|---|
| Jul 5, 1:16 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 25 more | 89 min |
| Jul 5, 2:00 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Boone, Calhoun and 31 more | 5 hr |
| Jul 5, 4:45 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Boone, Buena Vista and 30 more | 2 hr |
| Jul 5, 3:00 PM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Dallas, Davis, Decatur, Des Moines and 22 more | 60 min |
| Jul 5, 4:20 PM CDT | Tornado Watch | SPC | Allamakee, Appanoose, Benton, Black Hawk, Bremer, Buchanan and 51 more | 6 hr |
| Jul 5, 6:30 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Bremer, Buchanan, Butler, Cedar and 40 more | 60 min |
| Jul 4, 7:02 PM CDT | Mesoscale Discussion | SPC | Norton, Phillips | 58 min |
| Jul 4, 7:12 PM CDT | Mesoscale Discussion | SPC | Barber, Barton, Clark, Comanche, Edwards, Ellis and 15 more | 2 hr |
| Jul 4, 7:25 PM CDT | Severe Thunderstorm Watch | SPC | Cloud, Graham, Jewell, Mitchell, Norton, Osborne and 5 more | 7 hr |
| Jul 4, 9:21 PM CDT | Mesoscale Discussion | SPC | Butler, Chase, Cowley, Dickinson, Elk, Ellsworth and 11 more | 54 min |
| Jul 4, 9:40 PM CDT | Severe Thunderstorm Watch | SPC | Allen, Anderson, Barber, Barton, Butler, Chase and 44 more | 6 hr |
| Jul 4, 10:45 PM CDT | Mesoscale Discussion | SPC | Cloud, Jewell, Mitchell, Phillips, Republic, Smith | 60 min |
| Jul 4, 11:20 PM CDT | Mesoscale Discussion | SPC | Barber, Barton, Butler, Chase, Clark, Comanche and 30 more | 55 min |
| Jul 5, 2:06 AM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Barber, Butler, Chase, Chautauqua and 20 more | 114 min |
| Jul 5, 3:25 AM CDT | Severe Thunderstorm Watch | SPC | Allen, Anderson, Bourbon, Chautauqua, Cherokee, Coffey and 10 more | 6 hr |
| Jul 5, 6:02 AM CDT | Mesoscale Discussion | SPC | Bourbon, Cherokee, Crawford, Labette, Montgomery, Neosho | 88 min |
| Jul 5, 12:40 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Rawlins, Sherman, Thomas | 2 hr |
| Jul 5, 2:20 PM CDT | Severe Thunderstorm Watch | SPC | Cheyenne, Decatur, Gove, Logan, Rawlins, Sheridan and 3 more | 6 hr |
| Jul 5, 3:43 PM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Bourbon, Cherokee, Crawford, Labette and 5 more | 92 min |
| Jul 5, 4:21 PM CDT | Mesoscale Discussion | SPC | Allen, Barber, Bourbon, Butler, Chautauqua, Cherokee and 20 more | 114 min |
| Jul 5, 4:36 PM CDT | Mesoscale Discussion | SPC | Clark, Finney, Ford, Grant, Gray, Hamilton and 7 more | 54 min |
| Jul 5, 4:40 PM CDT | Severe Thunderstorm Watch | SPC | Allen, Barber, Bourbon, Butler, Chautauqua, Cherokee and 17 more | 5 hr |
| Jul 5, 5:45 PM CDT | Severe Thunderstorm Watch | SPC | Clark, Comanche, Edwards, Finney, Ford, Grant and 18 more | 6 hr |
| Jul 5, 5:52 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Graham, Logan, Norton, Rawlins and 4 more | 83 min |
Nearby
Severe Thunderstorm Watches in Nebraska, 2004Severe Thunderstorm Watches in Kansas, 2004Severe Thunderstorm Watches in Iowa, 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.