Alert archive / Arkansas / Mesoscale Discussions in 2003

Mesoscale Discussion 984

May 14, 20037 counties in Arkansas; 4 counties in Oklahoma; Bowie County, Red River County, Texas

The Storm Prediction Center issued this mesoscale discussion at May 14, 2003, 7:36 PM CDT for 7 counties in Arkansas; 4 counties in Oklahoma; Bowie County, Red River County, Texas. It was in force for 114 min.

The area

The outline as issued.

The facts

Issued: May 14, 2003, 7:36 PM CDT (00:36 UTC)
Expired: May 14, 2003, 9:30 PM CDT
In force: 114 min
Issued by: the Storm Prediction Center

Counties Hempstead County, AR, Howard County, AR, Little River County, AR, Miller County, AR, Pike County, AR, Polk County, AR, Sevier 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), 145 km from the middle of the area, began a volume at 00:36 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, 0.6 hours before the alert went out and 193 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: 2404 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 1182 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 114 m²/s²
0-3 km storm-relative helicity: 250 m²/s²
Significant tornado parameter: 2.2
Supercell composite: 10.6

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.

Issued	Product	Office	Counties	Lasted
May 14, 9:20 PM CDT	Mesoscale Discussion	SPC	Ashley, Columbia, Lafayette, Miller, Union	115 min
May 14, 10:10 PM CDT	Mesoscale Discussion	SPC	Clay, Craighead, Greene, Lawrence, Mississippi, Poinsett and 2 more	2 hr
May 15, 1:31 PM CDT	Mesoscale Discussion	SPC	Cimarron, Texas	119 min
May 15, 1:55 PM CDT	Tornado Watch	SPC	Beaver, Cimarron, Texas	6 hr
May 15, 3:41 PM CDT	Mesoscale Discussion	SPC	Cimarron, Harmon, Texas	94 min
May 15, 6:25 PM CDT	Tornado Watch	SPC	Jackson, Tillman	6 hr
May 15, 6:47 PM CDT	Mesoscale Discussion	SPC	Beaver, Beckham, Ellis, Greer, Harmon, Harper and 2 more	58 min
May 15, 6:50 PM CDT	Tornado Watch	SPC	Beaver, Beckham, Blaine, Caddo, Cimarron, Comanche and 13 more	5 hr
May 14, 11:20 PM CDT	Mesoscale Discussion	SPC	Bell, Bosque, Coryell, Ellis, Falls, Freestone and 5 more	115 min
May 14, 11:35 PM CDT	Severe Thunderstorm Watch	SPC	Camp, Cass, Cherokee, Franklin, Gregg, Harrison and 8 more	5 hr
May 14, 11:45 PM CDT	Severe Thunderstorm Watch	SPC	Anderson, Bosque, Collin, Dallas, Delta, Denton and 16 more	5 hr
May 15, 2:10 AM CDT	Mesoscale Discussion	SPC	Anderson, Collin, Dallas, Denton, Ellis, Henderson and 13 more	2 hr
May 15, 2:27 AM CDT	Mesoscale Discussion	SPC	Gregg, Harrison, Marion, Panola, Rusk, Shelby	2 hr
May 15, 4:05 PM CDT	Tornado Watch	SPC	Borden, Briscoe, Castro, Childress, Cottle, Crosby and 20 more	6 hr
May 15, 5:15 PM CDT	Mesoscale Discussion	SPC	Frio, Kinney, Maverick, Uvalde, Zavala	2 hr
May 15, 5:49 PM CDT	Mesoscale Discussion	SPC	Baylor, Coke, Cottle, Fisher, Foard, Hardeman and 17 more	116 min

Nearby

Mesoscale Discussions in Arkansas, 2003 Mesoscale Discussions in Oklahoma, 2003 Mesoscale Discussions in Texas, 2003 Every mesoscale discussion in 2003

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.