Alert archive / Arkansas / Mesoscale Discussions in 2026
Mesoscale Discussion 649
The Storm Prediction Center issued this mesoscale discussion at May 5, 2026, 8:59 PM CDT for 23 counties in Arkansas; DeSoto County, Mississippi; 5 counties in Tennessee. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- May 5, 2026, 8:59 PM CDT (01:59 UTC)
- Expired
- May 5, 2026, 11:00 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Concerning
- Tornado watch 184
All 29 counties
Cleburne County, AR, Conway County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Faulkner County, AR, Independence County, AR, Jackson County, AR, Lee County, AR, Lonoke County, AR, Mississippi County, AR, Monroe County, AR, Perry County, AR, Poinsett County, AR, Pope County, AR, Prairie County, AR, Pulaski County, AR, Saline County, AR, St. Francis County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Yell County, AR, DeSoto County, MS, Fayette County, TN, Haywood County, TN, Lauderdale County, TN, Shelby County, TN, Tipton County, TN
The radar
The Little Rock radar (KLZK), 88 km from the middle of the area, began a volume at 02:02 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
Jackson, MS (KJAN), launched 00:00Z, 2.0 hours before the alert went out and 355 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
- 114 J/kg
- Mixed-layer CIN
- -143 J/kg
- Mixed-layer LCL
- 1035 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 229 m²/s²
- 0-3 km storm-relative helicity
- 392 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.3
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 12:54 AM CDT | Mesoscale Discussion | SPC | Arkansas, Clark, Cleveland, Crittenden, Cross, Dallas and 30 more | 2 hr |
| May 6, 11:57 AM CDT | Mesoscale Discussion | SPC | Adams, Amite, Claiborne, Clarke, Copiah, Covington and 29 more | 3 hr |
| May 6, 2:14 PM CDT | Tornado Watch | SPC | Adams, Amite, Attala, Choctaw, Claiborne, Clarke and 37 more | 9 hr |
| May 6, 3:14 PM CDT | Mesoscale Discussion | SPC | Adams, Amite, Claiborne, Clarke, Copiah, Covington and 25 more | 2 hr |
| May 6, 6:07 PM CDT | Mesoscale Discussion | SPC | Adams, Amite, Claiborne, Copiah, Covington, Franklin and 16 more | 83 min |
| May 6, 4:45 PM CDT | Mesoscale Discussion | SPC | Bradley, Polk | 2 hr |
Nearby
Mesoscale Discussions in Arkansas, 2026Mesoscale Discussions in Tennessee, 2026Mesoscale Discussions in Mississippi, 2026Every mesoscale discussion in 2026
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.