Alert archive / Missouri / Mesoscale Discussions in 2007
Mesoscale Discussion 803
The Storm Prediction Center issued this mesoscale discussion at May 15, 2007, 11:30 AM CDT for 18 counties in Arkansas; 19 counties in Missouri. It was in force for 90 min.
The area
The outline as issued.
The facts
- Issued
- May 15, 2007, 11:30 AM CDT (16:30 UTC)
- Expired
- May 15, 2007, 1:00 PM CDT
- In force
- 90 min
- Issued by
- the Storm Prediction Center
All 37 counties
Baxter County, AR, Benton County, AR, Boone County, AR, Carroll County, AR, Cleburne County, AR, Franklin County, AR, Fulton County, AR, Izard County, AR, Johnson County, AR, Madison County, AR, Marion County, AR, Newton County, AR, Pope County, AR, Searcy County, AR, Sharp County, AR, Stone County, AR, Van Buren County, AR, Washington County, AR, Barry County, MO, Christian County, MO, Dade County, MO, Dallas County, MO, Douglas County, MO, Greene County, MO, Howell County, MO, Laclede County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, Oregon County, MO, Ozark County, MO, Polk County, MO, Stone County, MO, Taney County, MO, Texas County, MO, Webster County, MO, Wright County, MO
The radar
The Springfield radar (KSGF), 100 km from the middle of the area, began a volume at 16:30 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
Springfield, MO (KSGF), launched 12:00Z, 4.5 hours before the alert went out and 92 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
- 287 J/kg
- Mixed-layer CIN
- -139 J/kg
- Mixed-layer LCL
- 1470 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- -18 m²/s²
- 0-3 km storm-relative helicity
- 22 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 |
|---|---|---|---|---|
| May 15, 12:37 PM CDT | Mesoscale Discussion | SPC | Arkansas, Ashley, Bradley, Calhoun, Chicot, Cleveland and 11 more | 83 min |
| May 15, 4:58 PM CDT | Mesoscale Discussion | SPC | Craighead, Crittenden, Cross, Greene, Mississippi, Poinsett and 2 more | 62 min |
| May 15, 5:28 PM CDT | Mesoscale Discussion | SPC | Clark, Columbia, Hempstead, Lafayette, Little River, Miller and 2 more | 62 min |
| May 15, 11:02 AM CDT | Severe Thunderstorm Watch | SPC | Audrain, Callaway, Cole, Crawford, Franklin, Gasconade and 14 more | 7 hr |
| May 15, 3:30 PM CDT | Mesoscale Discussion | SPC | Iron, Jefferson, Perry, Saint Charles, Sainte Genevieve, Saint Francois and 3 more | 90 min |
Nearby
Mesoscale Discussions in Missouri, 2007Mesoscale Discussions in Arkansas, 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.