Alert archive / Arkansas / Mesoscale Discussions in 2005
Mesoscale Discussion 2057
The Storm Prediction Center issued this mesoscale discussion at Aug 23, 2005, 2:25 PM CDT for 35 counties in Arkansas; Bolivar County, Coahoma County, Tunica County, Mississippi. It was in force for 95 min.
The area
The outline as issued.
The facts
- Issued
- Aug 23, 2005, 2:25 PM CDT (19:25 UTC)
- Expired
- Aug 23, 2005, 4:00 PM CDT
- In force
- 95 min
- Issued by
- the Storm Prediction Center
All 38 counties
Arkansas County, AR, Clark County, AR, Cleburne County, AR, Cleveland County, AR, Conway County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Dallas County, AR, Desha County, AR, Faulkner County, AR, Garland County, AR, Grant County, AR, Hot Spring County, AR, Independence County, AR, Jackson County, AR, Jefferson County, AR, Lawrence County, AR, Lee County, AR, Lincoln County, AR, Lonoke County, AR, Monroe County, AR, Perry County, AR, Phillips County, AR, Poinsett County, AR, Pope County, AR, Prairie County, AR, Pulaski County, AR, Saline County, AR, Searcy County, AR, St. Francis County, AR, Stone County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Bolivar County, MS, Coahoma County, MS, Tunica County, MS
The radar
The Little Rock radar (KLZK), 40 km from the middle of the area, began a volume at 19:28 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
Little Rock, AR (KLZK), launched 12:00Z, 7.4 hours before the alert went out and 171 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
- 1261 J/kg
- Mixed-layer CIN
- -80 J/kg
- Mixed-layer LCL
- 1115 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 111 m²/s²
- 0-3 km storm-relative helicity
- 167 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 3.3
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 |
|---|---|---|---|---|
| Aug 23, 1:14 PM CDT | Mesoscale Discussion | SPC | Alcorn, Benton, Itawamba, Lafayette, Lee, Pontotoc and 4 more | 91 min |
Nearby
Mesoscale Discussions in Arkansas, 2005Mesoscale Discussions in Mississippi, 2005Every mesoscale discussion in 2005
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.