Alert archive / Iowa / Mesoscale Discussions in 2005
Mesoscale Discussion 1455
The Storm Prediction Center issued this mesoscale discussion at Jun 25, 2005, 12:04 AM CDT for 46 counties in Iowa; 28 counties in Nebraska; Clay County, Union County, South Dakota. It was in force for 86 min.
The area
The outline as issued.
The facts
- Issued
- Jun 25, 2005, 12:04 AM CDT (05:04 UTC)
- Expired
- Jun 25, 2005, 1:30 AM CDT
- In force
- 86 min
- Issued by
- the Storm Prediction Center
All 76 counties
Audubon County, IA, Black Hawk County, IA, Boone County, IA, Bremer County, IA, Buena Vista County, IA, Butler County, IA, Calhoun County, IA, Carroll County, IA, Cerro Gordo County, IA, Cherokee County, IA, Chickasaw County, IA, Clay County, IA, Crawford County, IA, Dallas County, IA, Floyd County, IA, Franklin County, IA, Greene County, IA, Grundy County, IA, Guthrie County, IA, Hamilton County, IA, Hancock County, IA, Hardin County, IA, Harrison County, IA, Howard County, IA, Humboldt County, IA, Ida County, IA, Jasper County, IA, Kossuth County, IA, Marshall County, IA, Mitchell County, IA, Monona County, IA, O'Brien County, IA, Palo Alto County, IA, Plymouth County, IA, Pocahontas County, IA, Polk County, IA, Sac County, IA, Shelby County, IA, Sioux County, IA, Story County, IA, Tama County, IA, Webster County, IA, Winnebago County, IA, Woodbury County, IA, Worth County, IA, Wright County, IA, Antelope County, NE, Boone County, NE, Burt County, NE, Butler County, NE, Cedar County, NE, Colfax County, NE, Cuming County, NE, Dakota County, NE, Dixon County, NE, Dodge County, NE, Garfield County, NE, Greeley County, NE, Holt County, NE, Howard County, NE, Knox County, NE, Madison County, NE, Merrick County, NE, Nance County, NE, Pierce County, NE, Platte County, NE, Polk County, NE, Sherman County, NE, Stanton County, NE, Thurston County, NE, Valley County, NE, Washington County, NE, Wayne County, NE, Wheeler County, NE, Clay County, SD, Union County, SD
The radar
The Omaha radar (KOAX), 79 km from the middle of the area, began a volume at 05:06 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.
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 5.1 hours before the alert went out and 79 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
- 2829 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 1743 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 155 m²/s²
- 0-3 km storm-relative helicity
- 310 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 19.2
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 8:42 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Allamakee, Audubon, Benton, Black Hawk and 74 more | 33 min |
| Jun 24, 9:25 PM CDT | Severe Thunderstorm Watch | SPC | Audubon, Boone, Bremer, Buena Vista, Butler, Calhoun and 37 more | 8 hr |
| Jun 25, 2:08 AM CDT | Mesoscale Discussion | SPC | Carroll, Crawford, Harrison, Ida, Monona, Sac and 1 more | 67 min |
| Jun 25, 3:23 AM CDT | Mesoscale Discussion | SPC | Boone, Calhoun, Carroll, Crawford, Greene, Grundy and 9 more | 37 min |
| Jun 25, 3:35 PM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Benton, Black Hawk, Boone, Bremer and 29 more | 115 min |
| Jun 25, 6:13 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Buena Vista, Calhoun, Carroll and 26 more | 3 hr |
| Jun 24, 7:32 PM CDT | Mesoscale Discussion | SPC | Arthur, Banner, Box Butte, Chase, Cherry, Cheyenne and 16 more | 88 min |
| Jun 24, 10:10 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Buffalo, Clay, Dawson, Fillmore, Franklin and 11 more | 7 hr |
| Jun 24, 11:08 PM CDT | Mesoscale Discussion | SPC | Arthur, Blaine, Box Butte, Brown, Chase, Cherry and 21 more | 67 min |
| Jun 25, 4:02 PM CDT | Mesoscale Discussion | SPC | Chase, Dundy, Hayes, Hitchcock | 88 min |
| Jun 25, 5:40 PM CDT | Mesoscale Discussion | SPC | Banner, Box Butte, Cheyenne, Dawes, Garden, Kimball and 4 more | 95 min |
| Jun 25, 6:05 PM CDT | Severe Thunderstorm Watch | SPC | Arthur, Banner, Box Butte, Cheyenne, Dawes, Deuel and 9 more | 7 hr |
Nearby
Mesoscale Discussions in Iowa, 2005Mesoscale Discussions in Nebraska, 2005Mesoscale Discussions in South Dakota, 2005Every mesoscale discussion 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.