Alert archive / Kansas / Mesoscale Discussions in 2011
Mesoscale Discussion 2291
The Storm Prediction Center issued this mesoscale discussion at Nov 7, 2011, 4:58 PM CST for 6 counties in Kansas; Nowata County, Osage County, Washington County, Oklahoma. It was in force for 92 min.
The area
The outline as issued.
The facts
- Issued
- Nov 7, 2011, 4:58 PM CST (22:58 UTC)
- Expired
- Nov 7, 2011, 6:30 PM CST
- In force
- 92 min
- Issued by
- the Storm Prediction Center
Counties Chautauqua County, KS, Elk County, KS, Labette County, KS, Montgomery County, KS, Neosho County, KS, Wilson County, KS, Nowata County, OK, Osage County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 112 km from the middle of the area, began a volume at 22:59 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Topeka, KS (KTOP), launched 12:00Z, 11.0 hours before the alert went out and 217 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
- 1478 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 200 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 |
|---|---|---|---|---|
| Nov 7, 1:30 PM CST | Mesoscale Discussion | SPC | Barber, Butler, Chautauqua, Cowley, Elk, Greenwood and 6 more | 2 hr |
| Nov 7, 5:37 PM CST | Tornado Watch | SPC | Allen, Bourbon, Chautauqua, Cherokee, Cowley, Crawford and 7 more | 7 hr |
| Nov 6, 7:00 PM CST | Mesoscale Discussion | SPC | Carter, Garvin, Jefferson, Johnston, Love, Marshall and 2 more | 90 min |
| Nov 7, 7:52 AM CST | Mesoscale Discussion | SPC | Alfalfa, Beckham, Blaine, Canadian, Custer, Dewey and 15 more | 83 min |
| Nov 7, 12:27 PM CST | Mesoscale Discussion | SPC | Beckham, Caddo, Comanche, Cotton, Custer, Greer and 6 more | 93 min |
| Nov 7, 1:11 PM CST | Tornado Watch | SPC | Beckham, Blaine, Caddo, Canadian, Comanche, Cotton and 17 more | 8 hr |
| Nov 7, 5:51 PM CST | Mesoscale Discussion | SPC | Blaine, Caddo, Canadian, Comanche, Custer, Garfield and 10 more | 114 min |
| Nov 7, 5:53 PM CST | Mesoscale Discussion | SPC | Love, Marshall | 67 min |
Nearby
Mesoscale Discussions in Kansas, 2011Mesoscale Discussions in Oklahoma, 2011Every mesoscale discussion in 2011
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.