Alert archive / Arkansas / Mesoscale Discussions in 2012
Mesoscale Discussion 1615
The Storm Prediction Center issued this mesoscale discussion at Jul 26, 2012, 5:27 PM CDT for 5 states. It was in force for 33 min.
The area
The outline as issued.
The facts
- Issued
- Jul 26, 2012, 5:27 PM CDT (22:27 UTC)
- Expired
- Jul 26, 2012, 6:00 PM CDT
- In force
- 33 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 95%
All 73 counties
Clark County, AR, Clay County, AR, Cleburne County, AR, Conway County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Faulkner County, AR, Franklin County, AR, Garland County, AR, Grant County, AR, Greene County, AR, Hempstead County, AR, Hot Spring County, AR, Howard County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Jefferson County, AR, Johnson County, AR, Lawrence County, AR, Lee County, AR, Little River County, AR, Logan County, AR, Lonoke County, AR, Mississippi County, AR, Monroe County, AR, Montgomery County, AR, Perry County, AR, Pike County, AR, Poinsett County, AR, Polk County, AR, Pope County, AR, Prairie County, AR, Pulaski County, AR, Randolph County, AR, Saline County, AR, Scott County, AR, Searcy County, AR, Sebastian County, AR, Sevier County, AR, Sharp County, AR, St. Francis County, AR, Stone County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Yell County, AR, Dunklin County, MO, Pemiscot County, MO, Latimer County, OK, LeFlore County, OK, McCurtain County, OK, Pushmataha County, OK, Benton County, TN, Carroll County, TN, Chester County, TN, Crockett County, TN, Decatur County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Lake County, TN, Lauderdale County, TN, Madison County, TN, Obion County, TN, Shelby County, TN, Tipton County, TN, Weakley County, TN, Bowie County, TX
The radar
The Little Rock radar (KLZK), 38 km from the middle of the area, began a volume at 22:30 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
Little Rock, AR (KLZK), launched 12:00Z, 10.5 hours before the alert went out and 213 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
- 2289 J/kg
- Mixed-layer CIN
- -69 J/kg
- Mixed-layer LCL
- 941 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -45 m²/s²
- 0-3 km storm-relative helicity
- -30 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Jul 26, 1:44 PM CDT | Mesoscale Discussion | SPC | Baxter, Boone, Carroll, Clay, Cleburne, Conway and 24 more | 3 hr |
| Jul 26, 5:46 PM CDT | Severe Thunderstorm Watch | SPC | Clark, Clay, Cleburne, Conway, Craighead, Crawford and 45 more | 6 hr |
| Jul 26, 6:29 PM CDT | Mesoscale Discussion | SPC | Clay | 61 min |
| Jul 25, 7:21 PM CDT | Mesoscale Discussion | SPC | Atchison | 54 min |
| Jul 26, 1:25 PM CDT | Mesoscale Discussion | SPC | Bollinger, Butler, Cape Girardeau, Carter, Christian, Crawford and 27 more | 65 min |
| Jul 26, 1:46 PM CDT | Severe Thunderstorm Watch | SPC | Barry, Bollinger, Butler, Cape Girardeau, Carter, Christian and 26 more | 10 hr |
| Jul 26, 3:55 PM CDT | Mesoscale Discussion | SPC | Bollinger, Butler, Cape Girardeau, Carter, Christian, Dent and 23 more | 35 min |
| Jul 26, 2:23 PM CDT | Mesoscale Discussion | SPC | Jefferson | 2 hr |
Nearby
Mesoscale Discussions in Arkansas, 2012Mesoscale Discussions in Tennessee, 2012Mesoscale Discussions in Oklahoma, 2012Every mesoscale discussion in 2012
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.