Alert archive / Oklahoma / Mesoscale Discussions in 2006
Mesoscale Discussion 704
The Storm Prediction Center issued this mesoscale discussion at Apr 30, 2006, 2:43 PM CDT for 13 counties in Kansas; 27 counties in Oklahoma. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 30, 2006, 2:43 PM CDT (19:43 UTC)
- Expired
- Apr 30, 2006, 4:45 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 40 counties
Barber County, KS, Chautauqua County, KS, Comanche County, KS, Cowley County, KS, Elk County, KS, Harper County, KS, Kingman County, KS, Kiowa County, KS, Labette County, KS, Montgomery County, KS, Pratt County, KS, Sedgwick County, KS, Sumner County, KS, Alfalfa County, OK, Cherokee County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Garfield County, OK, Grant County, OK, Kay County, OK, Kingfisher County, OK, Lincoln County, OK, Logan County, OK, Major County, OK, Mayes County, OK, Muskogee County, OK, Noble County, OK, Nowata County, OK, Okmulgee County, OK, Osage County, OK, Ottawa County, OK, Pawnee County, OK, Payne County, OK, Rogers County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK, Woods County, OK, Woodward County, OK
The radar
The Vance AFB radar (KVNX), 89 km from the middle of the area, began a volume at 19:42 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
Norman, OK (KOUN), launched 12:00Z, 7.7 hours before the alert went out and 163 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
- 1676 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 68 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 |
|---|---|---|---|---|
| Apr 30, 3:55 PM CDT | Severe Thunderstorm Watch | SPC | Chautauqua, Cowley, Harper, Sumner | 7 hr |
Nearby
Mesoscale Discussions in Oklahoma, 2006Mesoscale Discussions in Kansas, 2006Every mesoscale discussion in 2006
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.