Alert archive / Oklahoma / Mesoscale Discussions in 2011
Mesoscale Discussion 1192
The Storm Prediction Center issued this mesoscale discussion at Jun 12, 2011, 2:07 AM CDT for 17 counties in Oklahoma. It was in force for 113 min.
The area
The outline as issued.
The facts
- Issued
- Jun 12, 2011, 2:07 AM CDT (07:07 UTC)
- Expired
- Jun 12, 2011, 4:00 AM CDT
- In force
- 113 min
- Issued by
- the Storm Prediction Center
Counties Adair County, OK, Cherokee County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Nowata County, OK, Okfuskee County, OK, Okmulgee County, OK, Osage County, OK, Ottawa County, OK, Rogers County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 59 km from the middle of the area, began a volume at 07:08 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
Norman, OK (KOUN), launched 00:00Z, 7.1 hours before the alert went out and 153 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
- 2801 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 1479 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 141 m²/s²
- 0-3 km storm-relative helicity
- 140 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 11.5
The text
As transmitted, in the capitals the NWS used until 2016.
132
ACUS11 KWNS 120708
SWOMCD
SPC MCD 120707
ARZ000-MOZ000-OKZ000-KSZ000-120900-
MESOSCALE DISCUSSION 1192
NWS STORM PREDICTION CENTER NORMAN OK
0207 AM CDT SUN JUN 12 2011
AREAS AFFECTED...NERN OK
CONCERNING...SEVERE THUNDERSTORM WATCH 466...
VALID 120707Z - 120900Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 466
CONTINUES.
...STRONG MCS COULD STILL PRODUCE WIND GUSTS OF 40-50KT ACROSS
PORTIONS OF NERN OK NEXT COUPLE OF HOURS...
MATURE MCS CONTINUES TO TRACK EAST ACROSS NERN OK AT ABOUT 35-40KT
AND WILL MOVE THROUGH MOST OF SVR TSTM WATCH 466 OVER THE NEXT TWO
HOURS...THROUGH 0900Z/0400 CDT. RECENT WARMING TRENDS IN IR CLOUD
TOPS SUGGEST A GRADUAL DEMISE IN OVERALL SYSTEM INTENSITY.
HOWEVER...LARGE COLD POOL/STRATIFORM RAIN REGION AND FAVORABLE LARGE
SCALE SUPPORT FROM UPPER LEVEL SHORT WAVE IMPULSE AND ASSOCIATED
40-50KT WLY JET STREAK...AS WELL AS CONTINUING LOW LEVEL MASS FLUX
AND FOCUSED ISENTROPIC LIFT ON THE NOSE OF LLJ...SUGGEST THAT
CONVECTION ON THE LEADING EDGE AND FLANKING LINE OF THE MCS SHOULD
MAINTAIN SOME INTEGRITY ACROSS THE REST OF THE WATCH AREA IN ERN OK
FOR ANOTHER COUPLE OF HOURS. IN ADDITION TO WIND GUSTS AROUND 50KT
NEAR THE APEX OF THE BOWING COMPLEX NOW ACROSS SRN OSAGE
COUNTY....TRAILING/TRAINING CONVECTION IN HIGH PW AIR MASS AMIDST
MODEST THICKNESS DIFFLUENCE SUGGEST EXCESSIVE RAINFALL AND LOCAL
FLOODING POTENTIAL NEXT FEW HOURS ACROSS NCNTRL AND NERN PARTS OF
OK.
..CARBIN.. 06/12/2011
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...SGF...TSA...ICT...OUN...
LAT...LON 37009671 36989462 35669447 35649510 35439510 35269521
35309538 35149586 35159596 35269599 35269640 35419641
35369659 35409664 37009671SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 9:37 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Blaine, Dewey, Ellis, Garfield, Grant and 4 more | 53 min |
| Jun 12, 12:23 AM CDT | Mesoscale Discussion | SPC | Adair, Cherokee, Craig, Creek, Delaware, Kay and 12 more | 67 min |
| Jun 12, 12:33 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Cherokee, Craig, Creek, Delaware, McIntosh and 12 more | 3 hr |
Nearby
Mesoscale 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.