Alert archive / Arkansas / Mesoscale Discussions in 2016
Mesoscale Discussion 1276
The Storm Prediction Center issued this mesoscale discussion at Jul 14, 2016, 2:14 PM CDT for 26 counties in Arkansas; 6 counties in Oklahoma. It was in force for 91 min.
The area
The outline as issued.
The facts
- Issued
- Jul 14, 2016, 2:14 PM CDT (19:14 UTC)
- Expired
- Jul 14, 2016, 3:45 PM CDT
- In force
- 91 min
- Issued by
- the Storm Prediction Center
All 32 counties
Clark County, AR, Conway County, AR, Crawford County, AR, Dallas County, AR, Franklin County, AR, Garland County, AR, Hempstead County, AR, Hot Spring County, AR, Howard County, AR, Johnson County, AR, Little River County, AR, Logan County, AR, Madison County, AR, Montgomery County, AR, Nevada County, AR, Ouachita County, AR, Perry County, AR, Pike County, AR, Polk County, AR, Pope County, AR, Saline County, AR, Scott County, AR, Sebastian County, AR, Sevier County, AR, Washington County, AR, Yell County, AR, Adair County, OK, Latimer County, OK, LeFlore County, OK, McCurtain County, OK, Pushmataha County, OK, Sequoyah County, OK
The radar
The Western Arkansas radar (KSRX), 49 km from the middle of the area, began a volume at 19:18 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
Springfield, MO (KSGF), launched 12:00Z, 7.2 hours before the alert went out and 232 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
- 36 J/kg
- Mixed-layer CIN
- -347 J/kg
- Mixed-layer LCL
- 1320 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- -84 m²/s²
- 0-3 km storm-relative helicity
- 223 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 14.7
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 |
|---|---|---|---|---|
| Jul 14, 3:10 AM CDT | Mesoscale Discussion | SPC | Howard, Little River, Polk, Sevier | 95 min |
| Jul 14, 11:21 AM CDT | Mesoscale Discussion | SPC | Benton, Crawford, Sebastian, Washington | 114 min |
| Jul 14, 11:38 AM CDT | Severe Thunderstorm Watch | SPC | Benton, Carroll, Crawford, Franklin, Madison, Sebastian and 1 more | 5 hr |
| Jul 14, 3:05 PM CDT | Severe Thunderstorm Watch | SPC | Arkansas, Bradley, Calhoun, Clark, Cleveland, Columbia and 32 more | 6 hr |
| Jul 14, 5:43 PM CDT | Mesoscale Discussion | SPC | Arkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 20 more | 2 hr |
| Jul 14, 5:05 PM CDT | Mesoscale Discussion | SPC | Beckham, Caddo, Cimarron, Comanche, Custer, Dewey and 8 more | 115 min |
| Jul 14, 6:25 PM CDT | Severe Thunderstorm Watch | SPC | Beckham, Caddo, Comanche, Cotton, Grady, Greer and 7 more | 7 hr |
Nearby
Mesoscale Discussions in Arkansas, 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.