Alert archive / Oklahoma / Mesoscale Discussions in 2014

Mesoscale Discussion 847

June 5, 2014Benton County, Carroll County, Arkansas; 4 counties in Missouri; 9 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Jun 5, 2014, 9:14 PM CDT for Benton County, Carroll County, Arkansas; 4 counties in Missouri; 9 counties in Oklahoma. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued
Jun 5, 2014, 9:14 PM CDT (02:14 UTC)
Expired
Jun 5, 2014, 11:45 PM CDT
In force
3 hr
Issued by
the Storm Prediction Center
Chance of a watch
40%

Counties Benton County, AR, Carroll County, AR, Barry County, MO, McDonald County, MO, Newton County, MO, Stone County, MO, Craig County, OK, Delaware County, OK, Grant County, OK, Kay County, OK, Noble County, OK, Nowata County, OK, Osage County, OK, Ottawa County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 53 km from the middle of the area, began a volume at 02:15 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

Springfield, MO (KSGF), launched 00:00Z, 2.2 hours before the alert went out and 141 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, Springfield, MO at 00:00Z on 2014-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1089 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, Springfield, MO at 00:00Z on 2014-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 82 square meters per square second.193958Sfc1 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
1089 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
887 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
82 m²/s²
0-3 km storm-relative helicity
135 m²/s²
Significant tornado parameter
0.7
Supercell composite
5.6

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 5, 9:36 PM CDTSevere Thunderstorm WatchSPCBenton, Carroll, Madison, Washington7 hr
Jun 6, 9:52 AM CDTMesoscale DiscussionSPCArkansas, Bradley, Calhoun, Clark, Cleveland, Conway and 32 more53 min
Jun 6, 10:18 AM CDTSevere Thunderstorm WatchSPCArkansas, Baxter, Benton, Boone, Bradley, Calhoun and 51 more5 hr
Jun 6, 11:22 AM CDTMesoscale DiscussionSPCCrittenden, Lee, Phillips, St. Francis83 min
Jun 6, 11:51 AM CDTSevere Thunderstorm WatchSPCAshley, Chicot, Clay, Craighead, Crittenden, Cross and 8 more7 hr
Jun 6, 12:49 PM CDTMesoscale DiscussionSPCConway, Faulkner, Grant, Hot Spring, Jefferson, Lonoke and 8 more56 min
Jun 6, 2:43 PM CDTMesoscale DiscussionSPCArkansas, Cleburne, Craighead, Crittenden, Cross, Desha and 22 more92 min
Jun 5, 7:37 PM CDTMesoscale DiscussionSPCCimarron113 min
Jun 5, 7:54 PM CDTMesoscale DiscussionSPCCimarron, Texas2 hr
Jun 5, 11:49 PM CDTMesoscale DiscussionSPCCimarron116 min
Jun 6, 1:17 AM CDTMesoscale DiscussionSPCBeckham, Blaine, Caddo, Canadian, Carter, Cleveland and 28 more88 min
Jun 6, 1:43 AM CDTSevere Thunderstorm WatchSPCAlfalfa, Beaver, Beckham, Blaine, Caddo, Canadian and 27 more6 hr
Jun 6, 4:05 AM CDTMesoscale DiscussionSPCAdair, Beckham, Blaine, Caddo, Canadian, Cherokee and 39 more115 min
Jun 6, 5:47 AM CDTMesoscale DiscussionSPCBeaver, Beckham, Blaine, Caddo, Canadian, Comanche and 13 more88 min
Jun 6, 7:02 AM CDTSevere Thunderstorm WatchSPCAdair, Atoka, Bryan, Carter, Cherokee, Choctaw and 30 more5 hr
Jun 6, 1:29 PM CDTMesoscale DiscussionSPCAlfalfa, Beaver, Grant, Harper, Major, Woods and 1 more3 hr
Jun 6, 3:23 PM CDTMesoscale DiscussionSPCCimarron, Texas67 min
Jun 6, 3:43 PM CDTTornado WatchSPCBeaver, Cimarron, Texas6 hr
Jun 6, 6:25 PM CDTMesoscale DiscussionSPCBeaver, Cimarron, Texas95 min
Jun 6, 6:44 PM CDTTornado WatchSPCBeaver, Cimarron, Texas6 hr

Nearby

Mesoscale Discussions in Oklahoma, 2014Mesoscale Discussions in Missouri, 2014Mesoscale Discussions in Arkansas, 2014Every mesoscale discussion in 2014

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.