Alert archive / Illinois / Severe Thunderstorm Watches in 2005
Severe Thunderstorm Watch 678
The Storm Prediction Center issued this severe thunderstorm watch at Jul 25, 2005, 10:05 AM CDT for 34 counties in Illinois; 5 counties in Indiana; 13 counties in Iowa. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 25, 2005, 10:05 AM CDT (15:05 UTC)
- Expired
- Jul 25, 2005, 5:00 PM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
All 52 counties
Cedar County, IA, Clinton County, IA, Des Moines County, IA, Henry County, IA, Jackson County, IA, Johnson County, IA, Jones County, IA, Lee County, IA, Linn County, IA, Louisa County, IA, Muscatine County, IA, Scott County, IA, Washington County, IA, Boone County, IL, Bureau County, IL, Carroll County, IL, Cook County, IL, DeKalb County, IL, DuPage County, IL, Ford County, IL, Grundy County, IL, Henderson County, IL, Henry County, IL, Iroquois County, IL, Jo Daviess County, IL, Kane County, IL, Kankakee County, IL, Kendall County, IL, Knox County, IL, Lake County, IL, LaSalle County, IL, Lee County, IL, Livingston County, IL, Marshall County, IL, McHenry County, IL, Mercer County, IL, Ogle County, IL, Peoria County, IL, Putnam County, IL, Rock Island County, IL, Stark County, IL, Stephenson County, IL, Warren County, IL, Whiteside County, IL, Will County, IL, Winnebago County, IL, Woodford County, IL, Benton County, IN, Jasper County, IN, Lake County, IN, Newton County, IN, Porter County, IN
The radar
The Quad Cities radar (KDVN), 51 km from the middle of the area, began a volume at 15:06 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.
Warnings issued inside it
3 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 10:31 AM CDT | Severe Thunderstorm Warning | DVN | Muscatine | 36 min |
| Jul 25, 10:40 AM CDT | Severe Thunderstorm Warning | DVN | Cedar, Scott | 51 min |
| Jul 25, 2:39 PM CDT | Severe Thunderstorm Warning | DVN | Bureau | 45 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
Davenport, (KDVN), launched 12:00Z, 3.1 hours before the alert went out and 44 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
- 1108 J/kg
- Mixed-layer CIN
- -91 J/kg
- Mixed-layer LCL
- 1611 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 79 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.8
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 8:20 PM CDT | Severe Thunderstorm Watch | SPC | Jo Daviess, Stephenson | 5 hr |
| Jul 24, 11:11 PM CDT | Mesoscale Discussion | SPC | Jo Daviess | 64 min |
| Jul 25, 8:53 AM CDT | Mesoscale Discussion | SPC | Cook, DeKalb, DuPage, Grundy, Iroquois, Kane and 7 more | 97 min |
| Jul 25, 1:31 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 27 more | 89 min |
| Jul 25, 3:50 PM CDT | Mesoscale Discussion | SPC | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more | 55 min |
| Jul 25, 9:25 AM CDT | Severe Thunderstorm Watch | SPC | Adams, Allen, Carroll, Cass, DeKalb, Elkhart and 17 more | 8 hr |
| Jul 25, 11:57 AM CDT | Mesoscale Discussion | SPC | Adams, Allen, Cass, DeKalb, Elkhart, Fulton and 12 more | 93 min |
| Jul 25, 1:53 PM CDT | Mesoscale Discussion | SPC | Adams, Cass, Huntington, Miami, Pulaski, Wabash and 1 more | 67 min |
| Jul 24, 8:26 PM CDT | Mesoscale Discussion | SPC | Boone, Buena Vista, Butler, Calhoun, Carroll, Cerro Gordo and 19 more | 94 min |
| Jul 24, 9:45 PM CDT | Severe Thunderstorm Watch | SPC | Clay, Dickinson, Lyon, O'Brien, Osceola, Sioux | 5 hr |
| Jul 24, 11:45 PM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Lyon, O'Brien, Osceola, Sioux | 60 min |
| Jul 25, 1:55 PM CDT | Mesoscale Discussion | SPC | Black Hawk, Bremer, Buena Vista, Butler, Calhoun, Cerro Gordo and 32 more | 2 hr |
| Jul 25, 3:30 PM CDT | Tornado Watch | SPC | Bremer, Buena Vista, Butler, Cerro Gordo, Cherokee, Chickasaw and 19 more | 7 hr |
| Jul 25, 4:40 PM CDT | Tornado Watch | SPC | Allamakee, Clayton, Fayette, Winneshiek | 7 hr |
| Jul 25, 4:53 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Calhoun, Carroll and 20 more | 67 min |
| Jul 25, 5:25 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Audubon, Boone, Calhoun, Carroll and 17 more | 4 hr |
| Jul 25, 6:56 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Buena Vista, Butler, Cerro Gordo, Cherokee and 18 more | 94 min |
Nearby
Severe Thunderstorm Watches in Illinois, 2005Severe Thunderstorm Watches in Iowa, 2005Severe Thunderstorm Watches in Indiana, 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.