Alert archive / Arkansas / Mesoscale Discussions in 2011
Mesoscale Discussion 1426
The Storm Prediction Center issued this mesoscale discussion at Jun 28, 2011, 4:08 AM CDT for 4 states. It was in force for 82 min.
The area
The outline as issued.
The facts
- Issued
- Jun 28, 2011, 4:08 AM CDT (09:08 UTC)
- Expired
- Jun 28, 2011, 5:30 AM CDT
- In force
- 82 min
- Issued by
- the Storm Prediction Center
All 68 counties
Baxter County, AR, Benton County, AR, Boone County, AR, Carroll County, AR, Clay County, AR, Cleburne County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Fulton County, AR, Greene County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Johnson County, AR, Lawrence County, AR, Madison County, AR, Marion County, AR, Mississippi County, AR, Newton County, AR, Poinsett County, AR, Pope County, AR, Randolph County, AR, Searcy County, AR, Sharp County, AR, St. Francis County, AR, Stone County, AR, Van Buren County, AR, Washington County, AR, White County, AR, Woodruff County, AR, Barry County, MO, Dunklin County, MO, Howell County, MO, Oregon County, MO, Ozark County, MO, Pemiscot County, MO, Ripley County, MO, Stone County, MO, Taney County, MO, Alcorn County, MS, Benton County, MS, DeSoto County, MS, Marshall County, MS, Tippah County, MS, Benton County, TN, Carroll County, TN, Chester County, TN, Crockett County, TN, Decatur County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Hardeman County, TN, Hardin County, TN, Haywood County, TN, Henderson County, TN, Lake County, TN, Lauderdale County, TN, Lewis County, TN, Madison County, TN, McNairy County, TN, Obion County, TN, Perry County, TN, Shelby County, TN, Tipton County, TN, Wayne County, TN, Weakley County, TN
The radar
The Memphis radar (KNQA), 119 km from the middle of the area, began a volume at 09:11 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
Little Rock, AR (KLZK), launched 00:00Z, 9.1 hours before the alert went out and 155 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.
- Mixed-layer CAPE
- 2004 J/kg
- Mixed-layer CIN
- -235 J/kg
- Mixed-layer LCL
- 1921 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 275 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 27, 7:05 PM CDT | Mesoscale Discussion | SPC | Baxter, Benton, Boone, Carroll, Clay, Fulton and 9 more | 115 min |
| Jun 28, 4:17 AM CDT | Severe Thunderstorm Watch | SPC | Baxter, Boone, Carroll, Clay, Cleburne, Craighead and 20 more | 8 hr |
| Jun 28, 6:34 AM CDT | Mesoscale Discussion | SPC | Arkansas, Clay, Cleburne, Conway, Craighead, Crittenden and 28 more | 86 min |
| Jun 28, 7:06 AM CDT | Severe Thunderstorm Watch | SPC | Arkansas, Bradley, Calhoun, Clark, Cleveland, Conway and 22 more | 5 hr |
| Jun 28, 9:52 AM CDT | Mesoscale Discussion | SPC | Ashley, Bradley, Calhoun, Chicot, Dallas, Drew and 1 more | 113 min |
| Jun 28, 10:26 AM CDT | Severe Thunderstorm Watch | SPC | Ashley, Chicot | 8 hr |
| Jun 28, 11:42 AM CDT | Mesoscale Discussion | SPC | Bradley, Calhoun, Clark, Columbia, Dallas, Garland and 13 more | 93 min |
| Jun 28, 11:51 AM CDT | Severe Thunderstorm Watch | SPC | Bradley, Calhoun, Clark, Cleveland, Columbia, Conway and 28 more | 7 hr |
| Jun 28, 3:09 PM CDT | Mesoscale Discussion | SPC | Ashley, Bradley, Calhoun, Clark, Cleveland, Columbia and 27 more | 96 min |
| Jun 28, 6:09 PM CDT | Mesoscale Discussion | SPC | Columbia, Hempstead, Howard, Lafayette, Little River, Miller and 3 more | 96 min |
| Jun 28, 6:08 AM CDT | Mesoscale Discussion | SPC | Alcorn, Prentiss, Tippah, Tishomingo | 97 min |
| Jun 28, 3:19 PM CDT | Mesoscale Discussion | SPC | Adams, Claiborne, Clarke, Copiah, Covington, Franklin and 6 more | 116 min |
| Jun 28, 1:44 PM CDT | Mesoscale Discussion | SPC | Carter, Cocke, Greene, Johnson, Sullivan, Unicoi and 1 more | 91 min |
Nearby
Mesoscale Discussions in Arkansas, 2011Mesoscale Discussions in Tennessee, 2011Mesoscale Discussions in Missouri, 2011Every mesoscale discussion in 2011
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.