Alert archive / Arkansas / Mesoscale Discussions in 2016
Mesoscale Discussion 576
The Storm Prediction Center issued this mesoscale discussion at May 9, 2016, 8:01 PM CDT for 38 counties in Arkansas; LeFlore County, McCurtain County, Oklahoma; 6 counties in Texas. It was in force for 89 min.
The area
The outline as issued.
The facts
- Issued
- May 9, 2016, 8:01 PM CDT (01:01 UTC)
- Expired
- May 9, 2016, 9:30 PM CDT
- In force
- 89 min
- Issued by
- the Storm Prediction Center
All 46 counties
Bradley County, AR, Calhoun County, AR, Clark County, AR, Cleburne County, AR, Cleveland County, AR, Columbia County, AR, Conway County, AR, Dallas County, AR, Faulkner County, AR, Garland County, AR, Grant County, AR, Hempstead County, AR, Hot Spring County, AR, Howard County, AR, Jefferson County, AR, Lafayette County, AR, Little River County, AR, Logan County, AR, Lonoke County, AR, Miller County, AR, Montgomery County, AR, Nevada County, AR, Ouachita County, AR, Perry County, AR, Pike County, AR, Polk County, AR, Pope County, AR, Prairie County, AR, Pulaski County, AR, Saline County, AR, Scott County, AR, Sebastian County, AR, Sevier County, AR, Union County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Yell County, AR, LeFlore County, OK, McCurtain County, OK, Bowie County, TX, Cass County, TX, Lamar County, TX, Morris County, TX, Red River County, TX, Titus County, TX
The radar
The Western Arkansas radar (KSRX), 135 km from the middle of the area, began a volume at 00:59 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
Shreveport, LA (KBAD), launched 00:00Z, 1.0 hours before the alert went out and 190 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
- 1192 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 1065 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 189 m²/s²
- 0-3 km storm-relative helicity
- 263 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 10.9
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 9, 7:23 PM CDT | Tornado Watch | SPC | Arkansas, Bradley, Calhoun, Clark, Clay, Cleburne and 53 more | 8 hr |
| May 9, 10:37 PM CDT | Mesoscale Discussion | SPC | Benton, Carroll | 83 min |
| May 9, 11:15 PM CDT | Mesoscale Discussion | SPC | Arkansas, Bradley, Calhoun, Clark, Cleburne, Cleveland and 26 more | 90 min |
| May 10, 1:42 AM CDT | Mesoscale Discussion | SPC | Ashley, Chicot, Desha, Drew | 93 min |
| May 9, 7:33 PM CDT | Mesoscale Discussion | SPC | Craig, Garfield, Grant, Kay, Mayes, Noble and 7 more | 57 min |
| May 10, 6:39 PM CDT | Mesoscale Discussion | SPC | Bryan, Love | 96 min |
| May 10, 1:56 PM CDT | Mesoscale Discussion | SPC | Bosque, Brown, Burnet, Coleman, Collin, Comanche and 45 more | 2 hr |
| May 10, 2:39 PM CDT | Severe Thunderstorm Watch | SPC | Bandera, Bell, Blanco, Bosque, Brown, Burnet and 63 more | 7 hr |
Nearby
Mesoscale Discussions in Arkansas, 2016Mesoscale Discussions in Texas, 2016Mesoscale Discussions in Oklahoma, 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.