Alert archive / Iowa / Mesoscale Discussions in 2005
Mesoscale Discussion 1546
The Storm Prediction Center issued this mesoscale discussion at Jun 29, 2005, 8:59 PM CDT for 35 counties in Iowa. It was in force for 91 min.
The area
The outline as issued.
The facts
- Issued
- Jun 29, 2005, 8:59 PM CDT (01:59 UTC)
- Expired
- Jun 29, 2005, 10:30 PM CDT
- In force
- 91 min
- Issued by
- the Storm Prediction Center
All 35 counties
Allamakee County, IA, Appanoose County, IA, Benton County, IA, Black Hawk County, IA, Bremer County, IA, Buchanan County, IA, Butler County, IA, Chickasaw County, IA, Clarke County, IA, Decatur County, IA, Fayette County, IA, Floyd County, IA, Franklin County, IA, Grundy County, IA, Hardin County, IA, Howard County, IA, Iowa County, IA, Jasper County, IA, Keokuk County, IA, Linn County, IA, Lucas County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Marshall County, IA, Monroe County, IA, Polk County, IA, Poweshiek County, IA, Ringgold County, IA, Story County, IA, Tama County, IA, Wapello County, IA, Warren County, IA, Wayne County, IA, Winneshiek County, IA
The radar
The Des Moines radar (KDMX), 100 km from the middle of the area, began a volume at 01:59 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 00:00Z, 2.0 hours before the alert went out and 201 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
- 1049 J/kg
- Mixed-layer CIN
- -131 J/kg
- Mixed-layer LCL
- 1913 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 224 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
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 29, 9:15 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Appanoose, Benton, Black Hawk, Boone, Bremer and 43 more | 6 hr |
| Jun 29, 9:23 PM CDT | Mesoscale Discussion | SPC | Emmet, Kossuth, Winnebago | 2 hr |
| Jun 29, 10:28 PM CDT | Mesoscale Discussion | SPC | Cass, Fremont, Montgomery, Page, Taylor | 62 min |
| Jun 30, 12:46 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Decatur, Fremont, Lee, Page and 4 more | 119 min |
Nearby
Mesoscale Discussions in Iowa, 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.