Alert archive / Kansas / Mesoscale Discussions in 2007
Mesoscale Discussion 1687
The Storm Prediction Center issued this mesoscale discussion at Aug 8, 2007, 3:55 PM CDT for 21 counties in Kansas; 6 counties in Oklahoma; Hemphill County, Lipscomb County, Roberts County, Texas. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 8, 2007, 3:55 PM CDT (20:55 UTC)
- Expired
- Aug 8, 2007, 6:30 PM CDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
All 30 counties
Barber County, KS, Chase County, KS, Comanche County, KS, Dickinson County, KS, Ellsworth County, KS, Geary County, KS, Harper County, KS, Harvey County, KS, Kingman County, KS, Kiowa County, KS, Marion County, KS, McPherson County, KS, Morris County, KS, Ottawa County, KS, Pratt County, KS, Reno County, KS, Rice County, KS, Saline County, KS, Sedgwick County, KS, Stafford County, KS, Wabaunsee County, KS, Alfalfa County, OK, Ellis County, OK, Harper County, OK, Roger Mills County, OK, Woods County, OK, Woodward County, OK, Hemphill County, TX, Lipscomb County, TX, Roberts County, TX
The radar
The Vance AFB radar (KVNX), 89 km from the middle of the area, began a volume at 20:53 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
Dodge City, (KDDC), launched 12:00Z, 8.9 hours before the alert went out and 130 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
- 1629 J/kg
- Mixed-layer CIN
- -195 J/kg
- Mixed-layer LCL
- 1528 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 110 m²/s²
- 0-3 km storm-relative helicity
- 65 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 7, 11:01 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Ellis, Gove, Graham, Greeley and 17 more | 119 min |
| Aug 7, 11:46 PM CDT | Mesoscale Discussion | SPC | Brown, Doniphan | 2 hr |
| Aug 8, 3:18 PM CDT | Mesoscale Discussion | SPC | Atchison, Brown, Doniphan, Jackson, Jefferson, Leavenworth and 5 more | 87 min |
| Aug 8, 4:43 PM CDT | Tornado Watch | SPC | Atchison, Brown, Doniphan, Jackson, Marshall, Nemaha and 2 more | 7 hr |
Nearby
Mesoscale Discussions in Kansas, 2007Mesoscale Discussions in Oklahoma, 2007Mesoscale Discussions in Texas, 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.