Alert archive / Missouri / Mesoscale Discussions in 2007
Mesoscale Discussion 1680
The Storm Prediction Center issued this mesoscale discussion at Aug 7, 2007, 11:46 PM CDT for 4 states. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 7, 2007, 11:46 PM CDT (04:46 UTC)
- Expired
- Aug 8, 2007, 2:15 AM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 28 counties
Fremont County, IA, Page County, IA, Taylor County, IA, Brown County, KS, Doniphan County, KS, Andrew County, MO, Atchison County, MO, Caldwell County, MO, Clinton County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Holt County, MO, Livingston County, MO, Mercer County, MO, Nodaway County, MO, Sullivan County, MO, Worth County, MO, Gage County, NE, Johnson County, NE, Lancaster County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Richardson County, NE, Saline County, NE
The radar
The Omaha radar (KOAX), 164 km from the middle of the area, began a volume at 04:46 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, 4.8 hours before the alert went out and 164 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
- 492 J/kg
- Mixed-layer CIN
- -161 J/kg
- Mixed-layer LCL
- 1286 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 244 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.6
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 |
|---|---|---|---|---|
| Aug 7, 8:13 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Cedar, Clarke, Dallas and 28 more | 92 min |
| Aug 8, 3:18 PM CDT | Mesoscale Discussion | SPC | Fremont, Page | 87 min |
| Aug 8, 3:28 PM CDT | Mesoscale Discussion | SPC | Lee | 62 min |
| Aug 8, 4:43 PM CDT | Tornado Watch | SPC | Adams, Appanoose, Clarke, Davis, Decatur, Fremont and 10 more | 7 hr |
| Aug 7, 11:01 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Ellis, Gove, Graham, Greeley and 17 more | 119 min |
| Aug 8, 3:55 PM CDT | Mesoscale Discussion | SPC | Barber, Chase, Comanche, Dickinson, Ellsworth, Geary and 15 more | 3 hr |
| Aug 8, 3:50 PM CDT | Severe Thunderstorm Watch | SPC | Clark, Lewis, Marion, Pike, Ralls | 4 hr |
Nearby
Mesoscale Discussions in Missouri, 2007Mesoscale Discussions in Nebraska, 2007Mesoscale Discussions in Iowa, 2007Every mesoscale discussion in 2007
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.