Alert archive / Arkansas / Mesoscale Discussions in 2003

Mesoscale Discussion 1210

June 2, 200311 counties in Arkansas; 7 counties in Mississippi

The Storm Prediction Center issued this mesoscale discussion at Jun 2, 2003, 5:46 PM CDT for 11 counties in Arkansas; 7 counties in Mississippi. It was in force for 119 min.

The area

The outline as issued.

The facts

Issued: Jun 2, 2003, 5:46 PM CDT (22:46 UTC)
Expired: Jun 2, 2003, 7:45 PM CDT
In force: 119 min
Issued by: the Storm Prediction Center

Counties Ashley County, AR, Bradley County, AR, Calhoun County, AR, Chicot County, AR, Cleveland County, AR, Columbia County, AR, Desha County, AR, Drew County, AR, Lafayette County, AR, Ouachita County, AR, Union County, AR, Bolivar County, MS, Coahoma County, MS, Panola County, MS, Quitman County, MS, Sunflower County, MS, Tate County, MS, Washington County, MS

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 10.8 hours before the alert went out and 213 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: 1041 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 944 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 81 m²/s²
0-3 km storm-relative helicity: 76 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.4

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 2, 12:27 AM CDT	Mesoscale Discussion	SPC	Crawford, Franklin, Logan, Madison, Scott, Sebastian and 1 more	63 min
Jun 2, 12:45 AM CDT	Severe Thunderstorm Watch	SPC	Benton, Crawford, Franklin, Howard, Polk, Scott and 2 more	5 hr
Jun 2, 2:53 AM CDT	Mesoscale Discussion	SPC	Benton, Crawford, Franklin, Polk, Scott, Sebastian and 1 more	2 hr
Jun 2, 12:30 PM CDT	Mesoscale Discussion	SPC	Arkansas, Cleveland, Crittenden, Cross, Desha, Jefferson and 6 more	2 hr
Jun 2, 1:15 PM CDT	Severe Thunderstorm Watch	SPC	Arkansas, Ashley, Bradley, Calhoun, Chicot, Cleveland and 22 more	6 hr
Jun 2, 2:07 PM CDT	Mesoscale Discussion	SPC	Clark, Dallas, Garland, Grant, Hempstead, Hot Spring and 7 more	113 min
Jun 2, 3:25 PM CDT	Mesoscale Discussion	SPC	Crittenden, Desha, Lee, Phillips	2 hr
Jun 2, 4:58 PM CDT	Mesoscale Discussion	SPC	Chicot	2 hr
Jun 2, 3:20 PM CDT	Severe Thunderstorm Watch	SPC	Adams, Attala, Claiborne, Copiah, Franklin, Hinds and 13 more	6 hr
Jun 2, 4:55 PM CDT	Tornado Watch	SPC	Benton, Calhoun, Carroll, Chickasaw, Choctaw, Clay and 20 more	5 hr

Nearby

Mesoscale Discussions in Arkansas, 2003 Mesoscale Discussions in Mississippi, 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.