Alert archive / Arkansas / Mesoscale Discussions in 2008

Mesoscale Discussion 1371

June 14, 200811 counties in Arkansas; 4 counties in Oklahoma; Bowie County, Red River County, Texas

The Storm Prediction Center issued this mesoscale discussion at Jun 14, 2008, 4:38 AM CDT for 11 counties in Arkansas; 4 counties in Oklahoma; Bowie County, Red River County, Texas. It was in force for 67 min.

The area

The outline as issued.

The facts

Issued: Jun 14, 2008, 4:38 AM CDT (09:38 UTC)
Expired: Jun 14, 2008, 5:45 AM CDT
In force: 67 min
Issued by: the Storm Prediction Center

Counties Calhoun County, AR, Columbia County, AR, Hempstead County, AR, Howard County, AR, Lafayette County, AR, Little River County, AR, Miller County, AR, Nevada County, AR, Ouachita County, AR, Sevier County, AR, Union County, AR, Atoka County, OK, Choctaw County, OK, McCurtain County, OK, Pushmataha County, OK, Bowie County, TX, Red River County, TX

The radar

The Western Arkansas radar (KSRX), 154 km from the middle of the area, began a volume at 09:38 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

Shreveport, LA (KSHV), launched 00:00Z, 9.6 hours before the alert went out and 184 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1434 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 1480 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: -2 m²/s²
0-3 km storm-relative helicity: 39 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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.

Issued	Product	Office	Counties	Lasted
Jun 13, 8:11 PM CDT	Mesoscale Discussion	SPC	Clay, Cleburne, Conway, Craighead, Crawford, Cross and 25 more	94 min
Jun 13, 10:37 PM CDT	Mesoscale Discussion	SPC	Crawford, Franklin, Garland, Johnson, Logan, Montgomery and 5 more	83 min
Jun 13, 10:54 PM CDT	Mesoscale Discussion	SPC	Conway, Crawford, Faulkner, Franklin, Garland, Grant and 11 more	3 hr
Jun 13, 11:09 PM CDT	Mesoscale Discussion	SPC	Arkansas, Conway, Crittenden, Cross, Faulkner, Garland and 20 more	96 min
Jun 13, 11:25 PM CDT	Severe Thunderstorm Watch	SPC	Arkansas, Cleburne, Conway, Crawford, Faulkner, Franklin and 21 more	6 hr
Jun 13, 10:48 PM CDT	Severe Thunderstorm Watch	SPC	Atoka, Bryan, Caddo, Canadian, Carter, Choctaw and 33 more	6 hr
Jun 14, 3:35 PM CDT	Mesoscale Discussion	SPC	Beaver, Beckham, Ellis, Harmon, Roger Mills, Texas	85 min
Jun 14, 6:45 PM CDT	Mesoscale Discussion	SPC	Beckham, Greer, Harmon, Jackson, Kiowa, Roger Mills	90 min
Jun 14, 3:10 PM CDT	Mesoscale Discussion	SPC	Archer, Baylor, Clay, Fisher, Haskell, Jack and 7 more	95 min
Jun 14, 3:47 PM CDT	Severe Thunderstorm Watch	SPC	Armstrong, Bailey, Briscoe, Carson, Castro, Childress and 34 more	5 hr

Nearby

Mesoscale Discussions in Arkansas, 2008 Mesoscale Discussions in Oklahoma, 2008 Mesoscale Discussions in Texas, 2008 Every mesoscale discussion in 2008

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.