Alert archive / Oklahoma / Mesoscale Discussions in 2011

Mesoscale Discussion 1224

June 14, 2011Newton County, Missouri; 24 counties in Oklahoma; 4 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jun 14, 2011, 8:54 PM CDT for Newton County, Missouri; 24 counties in Oklahoma; 4 counties in Texas. It was in force for 66 min.

The area

The outline as issued.

The facts

Issued
Jun 14, 2011, 8:54 PM CDT (01:54 UTC)
Expired
Jun 14, 2011, 10:00 PM CDT
In force
66 min
Issued by
the Storm Prediction Center
All 29 counties

Newton County, MO, Cleveland County, OK, Comanche County, OK, Cotton County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Garvin County, OK, Grady County, OK, Jefferson County, OK, Lincoln County, OK, Mayes County, OK, McClain County, OK, Nowata County, OK, Okfuskee County, OK, Oklahoma County, OK, Okmulgee County, OK, Ottawa County, OK, Pottawatomie County, OK, Rogers County, OK, Seminole County, OK, Stephens County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK, Archer County, TX, Baylor County, TX, Clay County, TX, Wichita County, TX

The radar

The Norman radar (KTLX), 26 km from the middle of the area, began a volume at 01:55 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, 1.9 hours before the alert went out and 38 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.

Skew-T log-pSkew-T log-p diagram, Norman, OK at 00:00Z on 2011-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1292 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 2011-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 150 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1292 J/kg
Mixed-layer CIN
-121 J/kg
Mixed-layer LCL
2955 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
150 m²/s²
0-3 km storm-relative helicity
176 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 14, 7:47 PM CDTMesoscale DiscussionSPCAdair, Andrew, Audrain, Bates, Benton, Boone and 43 more58 min
Jun 14, 9:11 PM CDTMesoscale DiscussionSPCBarry, Barton, Camden, Cedar, Christian, Dade and 23 more64 min
Jun 15, 12:29 AM CDTMesoscale DiscussionSPCBenton, Bollinger, Butler, Camden, Carter, Cedar and 42 more2 hr
Jun 15, 1:09 AM CDTSevere Thunderstorm WatchSPCBarry, Bollinger, Butler, Camden, Carter, Christian and 35 more4 hr
Jun 15, 1:55 AM CDTMesoscale DiscussionSPCAdair, Clark, Knox, Lewis, Marion, Monroe and 5 more3 hr
Jun 15, 4:24 AM CDTMesoscale DiscussionSPCBollinger, Butler, Cape Girardeau, Crawford, Franklin, Gasconade and 20 more96 min
Jun 15, 10:54 AM CDTMesoscale DiscussionSPCPemiscot2 hr
Jun 15, 2:13 PM CDTMesoscale DiscussionSPCCape Girardeau, Mississippi, Perry, Scott2 hr
Jun 14, 7:02 PM CDTMesoscale DiscussionSPCCaddo, Canadian, Cleveland, Comanche, Cotton, Craig and 28 more58 min
Jun 15, 1:57 PM CDTMesoscale DiscussionSPCAtoka, Bryan, Carter, Choctaw, Coal, Comanche and 17 more63 min

Nearby

Mesoscale Discussions in Oklahoma, 2011Mesoscale Discussions in Texas, 2011Mesoscale Discussions in Missouri, 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.