Alert archive / Iowa / Mesoscale Discussions in 2003
Mesoscale Discussion 1633
The Storm Prediction Center issued this mesoscale discussion at Jul 5, 2003, 5:18 PM CDT for 22 counties in Illinois; 43 counties in Iowa; 6 counties in Missouri. It was in force for 57 min.
The area
The outline as issued.
The facts
- Issued
- Jul 5, 2003, 5:18 PM CDT (22:18 UTC)
- Expired
- Jul 5, 2003, 6:15 PM CDT
- In force
- 57 min
- Issued by
- the Storm Prediction Center
All 71 counties
Adair County, IA, Adams County, IA, Appanoose County, IA, Audubon County, IA, Boone County, IA, Carroll County, IA, Cass County, IA, Cedar County, IA, Clarke County, IA, Crawford County, IA, Dallas County, IA, Davis County, IA, Decatur County, IA, Des Moines County, IA, Greene County, IA, Guthrie County, IA, Henry County, IA, Iowa County, IA, Jasper County, IA, Jefferson County, IA, Johnson County, IA, Keokuk County, IA, Lee County, IA, Louisa County, IA, Lucas County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Marshall County, IA, Monroe County, IA, Muscatine County, IA, Polk County, IA, Poweshiek County, IA, Ringgold County, IA, Scott County, IA, Story County, IA, Taylor County, IA, Union County, IA, Van Buren County, IA, Wapello County, IA, Warren County, IA, Washington County, IA, Wayne County, IA, Cass County, IL, DeWitt County, IL, Fulton County, IL, Hancock County, IL, Henderson County, IL, Henry County, IL, Knox County, IL, Logan County, IL, Macon County, IL, Marshall County, IL, Mason County, IL, McDonough County, IL, McLean County, IL, Menard County, IL, Mercer County, IL, Peoria County, IL, Rock Island County, IL, Schuyler County, IL, Stark County, IL, Tazewell County, IL, Warren County, IL, Woodford County, IL, Clark County, MO, Mercer County, MO, Putnam County, MO, Schuyler County, MO, Scotland County, MO, Worth County, MO
The radar
The Quad Cities radar (KDVN), 89 km from the middle of the area, began a volume at 22:21 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 10.3 hours before the alert went out and 91 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2634 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 189 m²/s²
- 0-3 km storm-relative helicity
- 274 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Jul 4, 8:58 PM CDT | Mesoscale Discussion | SPC | DuPage, Grundy, Iroquois, Kane, Kankakee, Kendall and 1 more | 62 min |
| Jul 4, 10:09 PM CDT | Mesoscale Discussion | SPC | Brown, Cass, Champaign, DeWitt, Douglas, Ford and 20 more | 2 hr |
| Jul 4, 10:45 PM CDT | Mesoscale Discussion | SPC | Jo Daviess, Rock Island | 90 min |
| Jul 4, 11:25 PM CDT | Severe Thunderstorm Watch | SPC | Carroll, Henderson, Henry, Jo Daviess, Knox, Mercer and 6 more | 7 hr |
| Jul 5, 2:31 AM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 27 more | 89 min |
| Jul 5, 3:40 AM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Cook, DeKalb, DuPage, Grundy and 11 more | 4 hr |
| Jul 5, 5:43 AM CDT | Mesoscale Discussion | SPC | Cook, Kankakee, Lake, Will | 92 min |
| Jul 5, 12:55 PM CDT | Mesoscale Discussion | SPC | Champaign, Christian, Clark, Coles, Crawford, Cumberland and 14 more | 3 hr |
| Jul 5, 4:34 PM CDT | Mesoscale Discussion | SPC | Champaign, Ford, Iroquois, Vermilion | 56 min |
| Jul 5, 5:55 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Cass, Champaign, Christian, Clark and 36 more | 6 hr |
| Jul 4, 8:43 PM CDT | Mesoscale Discussion | SPC | Audubon, Buena Vista, Calhoun, Carroll, Cherokee, Clay and 20 more | 62 min |
| Jul 4, 9:05 PM CDT | Tornado Watch | SPC | Audubon, Buena Vista, Calhoun, Carroll, Cass, Cherokee and 31 more | 6 hr |
| Jul 5, 12:19 PM CDT | Mesoscale Discussion | SPC | Harrison, Monona | 2 hr |
| Jul 5, 3:10 PM CDT | Severe Thunderstorm Watch | SPC | Harrison, Mills, Monona, Plymouth, Pottawattamie, Woodbury | 7 hr |
| Jul 5, 6:42 PM CDT | Mesoscale Discussion | SPC | Fremont, Harrison, Mills, Monona, Page, Pottawattamie and 1 more | 93 min |
Nearby
Mesoscale Discussions in Iowa, 2003Mesoscale Discussions in Illinois, 2003Mesoscale Discussions in Missouri, 2003Every mesoscale discussion in 2003
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.