Alert archive / Oklahoma / Mesoscale Discussions in 2007

Mesoscale Discussion 1053

June 8, 2007McDonald County, Missouri; 26 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Jun 8, 2007, 2:27 AM CDT for McDonald County, Missouri; 26 counties in Oklahoma. It was in force for 63 min.

The area

The outline as issued.

The facts

Issued
Jun 8, 2007, 2:27 AM CDT (07:27 UTC)
Expired
Jun 8, 2007, 3:30 AM CDT
In force
63 min
Issued by
the Storm Prediction Center
All 27 counties

McDonald County, MO, Carter County, OK, Cherokee County, OK, Cleveland County, OK, Comanche County, OK, Cotton County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Garvin County, OK, Grady County, OK, Hughes County, OK, Lincoln County, OK, Mayes County, OK, McClain County, OK, McIntosh County, OK, Murray County, OK, Muskogee County, OK, Okfuskee County, OK, Okmulgee County, OK, Pontotoc County, OK, Pottawatomie County, OK, Rogers County, OK, Seminole County, OK, Stephens County, OK, Tulsa County, OK, Wagoner County, OK

The radar

The Norman radar (KTLX), 17 km from the middle of the area, began a volume at 07:30 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, 7.5 hours before the alert went out and 32 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 2007-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3921 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 2007-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 182 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
3921 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
1334 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
182 m²/s²
0-3 km storm-relative helicity
210 m²/s²
Significant tornado parameter
2.7
Supercell composite
21.8

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 7, 7:54 PM CDTMesoscale DiscussionSPCAudrain, Barton, Bates, Benton, Boone, Callaway and 27 more2 hr
Jun 7, 8:31 PM CDTTornado WatchSPCAdair, Audrain, Barton, Bates, Benton, Boone and 53 more7 hr
Jun 7, 11:12 PM CDTMesoscale DiscussionSPCAudrain, Barry, Barton, Bates, Benton, Boone and 62 more93 min
Jun 7, 11:26 PM CDTTornado WatchSPCBarry, Bollinger, Butler, Cape Girardeau, Carter, Christian and 36 more8 hr
Jun 8, 6:23 AM CDTMesoscale DiscussionSPCBollinger, Butler, Cape Girardeau, Carter, Mississippi, New Madrid and 5 more67 min
Jun 7, 7:08 PM CDTMesoscale DiscussionSPCCarter, Cleveland, Cotton, Craig, Creek, Garvin and 26 more2 hr
Jun 7, 9:40 PM CDTMesoscale DiscussionSPCCarter, Cleveland, Coal, Cotton, Craig, Creek and 28 more65 min
Jun 7, 11:43 PM CDTSevere Thunderstorm WatchSPCAdair, Atoka, Bryan, Carter, Cherokee, Choctaw and 43 more7 hr
Jun 8, 8:32 AM CDTMesoscale DiscussionSPCMcCurtain58 min

Nearby

Mesoscale Discussions in Oklahoma, 2007Mesoscale Discussions in Missouri, 2007Every mesoscale discussion in 2007

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.