Alert archive / Arkansas / Mesoscale Discussions in 2016
Mesoscale Discussion 1486
The Storm Prediction Center issued this mesoscale discussion at Aug 6, 2016, 1:13 PM CDT for 5 states. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 6, 2016, 1:13 PM CDT (18:13 UTC)
- Expired
- Aug 6, 2016, 3:45 PM CDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 5%
All 54 counties
Arkansas County, AR, Ashley County, AR, Bradley County, AR, Calhoun County, AR, Chicot County, AR, Clark County, AR, Cleveland County, AR, Columbia County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Hempstead County, AR, Howard County, AR, Jefferson County, AR, Lafayette County, AR, Lincoln County, AR, Little River County, AR, Miller County, AR, Nevada County, AR, Ouachita County, AR, Phillips County, AR, Sevier County, AR, Union County, AR, Claiborne Parish, LA, Morehouse Parish, LA, Union Parish, LA, Attala County, MS, Bolivar County, MS, Calhoun County, MS, Carroll County, MS, Choctaw County, MS, Coahoma County, MS, Grenada County, MS, Holmes County, MS, Humphreys County, MS, Lafayette County, MS, Leflore County, MS, Marshall County, MS, Montgomery County, MS, Panola County, MS, Quitman County, MS, Sharkey County, MS, Sunflower County, MS, Tallahatchie County, MS, Tate County, MS, Tunica County, MS, Washington County, MS, Webster County, MS, Yalobusha County, MS, Choctaw County, OK, McCurtain County, OK, Bowie County, TX, Lamar County, TX, Red River County, TX
The radar
The Little Rock radar (KLZK), 128 km from the middle of the area, began a volume at 18:15 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 (KBYH), launched 12:00Z, 6.2 hours before the alert went out and 200 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
- 266 J/kg
- Mixed-layer CIN
- -197 J/kg
- Mixed-layer LCL
- 1517 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 89 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
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Mesoscale Discussions in Arkansas, 2016Mesoscale Discussions in Mississippi, 2016Mesoscale Discussions in Louisiana, 2016Every mesoscale discussion in 2016
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.