Alert archive / Missouri / Mesoscale Discussions in 2015
Mesoscale Discussion 1797
The Storm Prediction Center issued this mesoscale discussion at Sep 10, 2015, 8:22 PM CDT for 11 counties in Illinois; 10 counties in Iowa; 14 counties in Missouri. It was in force for 113 min.
The area
The outline as issued.
The facts
- Issued
- Sep 10, 2015, 8:22 PM CDT (01:22 UTC)
- Expired
- Sep 10, 2015, 10:15 PM CDT
- In force
- 113 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 5%
All 35 counties
Appanoose County, IA, Davis County, IA, Des Moines County, IA, Henry County, IA, Jefferson County, IA, Lee County, IA, Louisa County, IA, Monroe County, IA, Van Buren County, IA, Wapello County, IA, Adams County, IL, Brown County, IL, Cass County, IL, Fulton County, IL, Hancock County, IL, Henderson County, IL, McDonough County, IL, Pike County, IL, Schuyler County, IL, Scott County, IL, Warren County, IL, Adair County, MO, Clark County, MO, Knox County, MO, Lewis County, MO, Macon County, MO, Marion County, MO, Monroe County, MO, Pike County, MO, Putnam County, MO, Ralls County, MO, Schuyler County, MO, Scotland County, MO, Shelby County, MO, Sullivan County, MO
The radar
The Quad Cities radar (KDVN), 176 km from the middle of the area, began a volume at 01:23 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
Davenport, (KDVN), launched 00:00Z, 1.4 hours before the alert went out and 181 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1365 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- -11 m²/s²
- 0-3 km storm-relative helicity
- 131 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.1
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 |
|---|---|---|---|---|
| Sep 10, 8:03 PM CDT | Severe Thunderstorm Watch | SPC | Barton, Bates, Cass, Jackson, Jasper, Vernon | 5 hr |
| Sep 10, 10:18 PM CDT | Mesoscale Discussion | SPC | Barton, Bates, Cass, Jasper, Vernon | 87 min |
| Sep 11, 12:53 AM CDT | Mesoscale Discussion | SPC | Barry, Benton, Camden, Christian, Dallas, Greene and 12 more | 67 min |
Nearby
Mesoscale Discussions in Missouri, 2015Mesoscale Discussions in Illinois, 2015Mesoscale Discussions in Iowa, 2015Every mesoscale discussion in 2015
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.