Alert archive / Iowa / Mesoscale Discussions in 2008
Mesoscale Discussion 2172
The Storm Prediction Center issued this mesoscale discussion at Aug 27, 2008, 4:40 AM CDT for 43 counties in Iowa; Atchison County, Holt County, Nodaway County, Missouri; 12 counties in Nebraska. It was in force for 95 min.
The area
The outline as issued.
The facts
- Issued
- Aug 27, 2008, 4:40 AM CDT (09:40 UTC)
- Expired
- Aug 27, 2008, 6:15 AM CDT
- In force
- 95 min
- Issued by
- the Storm Prediction Center
All 58 counties
Adair County, IA, Adams County, IA, Audubon County, IA, Boone County, IA, Buena Vista County, IA, Calhoun County, IA, Carroll County, IA, Cass County, IA, Cherokee County, IA, Clay County, IA, Crawford County, IA, Dallas County, IA, Franklin County, IA, Fremont County, IA, Greene County, IA, Guthrie County, IA, Hamilton County, IA, Hancock County, IA, Hardin County, IA, Harrison County, IA, Humboldt County, IA, Ida County, IA, Kossuth County, IA, Madison County, IA, Mills County, IA, Monona County, IA, Montgomery County, IA, O'Brien County, IA, Page County, IA, Palo Alto County, IA, Plymouth County, IA, Pocahontas County, IA, Polk County, IA, Pottawattamie County, IA, Sac County, IA, Shelby County, IA, Sioux County, IA, Story County, IA, Taylor County, IA, Union County, IA, Webster County, IA, Woodbury County, IA, Wright County, IA, Atchison County, MO, Holt County, MO, Nodaway County, MO, Burt County, NE, Cass County, NE, Dakota County, NE, Dodge County, NE, Douglas County, NE, Nemaha County, NE, Otoe County, NE, Richardson County, NE, Sarpy County, NE, Saunders County, NE, Thurston County, NE, Washington County, NE
The radar
The Des Moines radar (KDMX), 108 km from the middle of the area, began a volume at 09:41 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, 9.7 hours before the alert went out and 123 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
- 1538 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 188 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 |
|---|---|---|---|---|
| Aug 27, 4:48 PM CDT | Mesoscale Discussion | SPC | Cherokee, Clay, Dickinson, Emmet, Kossuth, Lyon and 6 more | 117 min |
| Aug 26, 7:25 PM CDT | Mesoscale Discussion | SPC | Cherry | 95 min |
Nearby
Mesoscale Discussions in Iowa, 2008Mesoscale Discussions in Nebraska, 2008Mesoscale Discussions in Missouri, 2008Every mesoscale discussion in 2008
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.