Alert archive / Oklahoma / Mesoscale Discussions in 2011
Mesoscale Discussion 1219
The Storm Prediction Center issued this mesoscale discussion at Jun 14, 2011, 3:36 PM CDT for 30 counties in Oklahoma; 7 counties in Texas. It was in force for 84 min.
The area
The outline as issued.
The facts
- Issued
- Jun 14, 2011, 3:36 PM CDT (20:36 UTC)
- Expired
- Jun 14, 2011, 5:00 PM CDT
- In force
- 84 min
- Issued by
- the Storm Prediction Center
All 37 counties
Caddo County, OK, Canadian County, OK, Cleveland County, OK, Comanche County, OK, Cotton County, OK, Creek County, OK, Garvin County, OK, Grady County, OK, Jackson County, OK, Jefferson County, OK, Kingfisher County, OK, Kiowa County, OK, Lincoln County, OK, Logan County, OK, McClain County, OK, Noble County, OK, Okfuskee County, OK, Oklahoma County, OK, Okmulgee County, OK, Osage County, OK, Pawnee County, OK, Payne County, OK, Pottawatomie County, OK, Rogers County, OK, Seminole County, OK, Stephens County, OK, Tillman County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK, Archer County, TX, Baylor County, TX, Clay County, TX, Foard County, TX, Hardeman County, TX, Wichita County, TX, Wilbarger County, TX
The radar
The Norman radar (KTLX), 66 km from the middle of the area, began a volume at 20:57 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, 8.6 hours before the alert went out and 51 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
- 1042 J/kg
- Mixed-layer CIN
- -630 J/kg
- Mixed-layer LCL
- 1925 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 164 m²/s²
- 0-3 km storm-relative helicity
- 240 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 |
|---|---|---|---|---|
| Jun 14, 4:25 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Beaver, Custer, Dewey, Ellis, Harper and 4 more | 2 hr |
| Jun 14, 5:27 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Caddo, Canadian, Carter, Cherokee, Choctaw and 42 more | 8 hr |
Nearby
Mesoscale Discussions in Oklahoma, 2011Mesoscale Discussions in Texas, 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.