Alert archive / Arkansas / Mesoscale Discussions in 2007
Mesoscale Discussion 192
The Storm Prediction Center issued this mesoscale discussion at Feb 24, 2007, 8:29 AM CST for 4 states. It was in force for 61 min.
The area
The outline as issued.
The facts
- Issued
- Feb 24, 2007, 8:29 AM CST (14:29 UTC)
- Expired
- Feb 24, 2007, 9:30 AM CST
- In force
- 61 min
- Issued by
- the Storm Prediction Center
All 57 counties
Calhoun County, AR, Clark County, AR, Columbia County, AR, Conway County, AR, Crawford County, AR, Dallas County, AR, Faulkner County, AR, Franklin County, AR, Garland County, AR, Grant County, AR, Hempstead County, AR, Hot Spring County, AR, Howard County, AR, Johnson County, AR, Lafayette County, AR, Little River County, AR, Logan County, AR, Madison County, AR, Miller County, AR, Montgomery County, AR, Nevada County, AR, Newton County, AR, Ouachita County, AR, Perry County, AR, Pike County, AR, Polk County, AR, Pope County, AR, Pulaski County, AR, Saline County, AR, Scott County, AR, Searcy County, AR, Sebastian County, AR, Sevier County, AR, Union County, AR, Van Buren County, AR, Washington County, AR, Yell County, AR, Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Claiborne Parish, LA, Webster Parish, LA, LeFlore County, OK, McCurtain County, OK, Sequoyah County, OK, Bowie County, TX, Camp County, TX, Cass County, TX, Franklin County, TX, Gregg County, TX, Harrison County, TX, Marion County, TX, Morris County, TX, Panola County, TX, Red River County, TX, Titus County, TX, Upshur County, TX
The radar
The Western Arkansas radar (KSRX), 147 km from the middle of the area, began a volume at 14:31 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
Shreveport, LA (KSHV), launched 12:00Z, 2.5 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
- 144 J/kg
- Mixed-layer CIN
- -313 J/kg
- Mixed-layer LCL
- 511 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 513 m²/s²
- 0-3 km storm-relative helicity
- 661 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 7.2
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 |
|---|---|---|---|---|
| Feb 24, 8:47 AM CST | Tornado Watch | SPC | Arkansas, Bradley, Calhoun, Clark, Cleburne, Cleveland and 42 more | 9 hr |
| Feb 24, 10:35 AM CST | Mesoscale Discussion | SPC | Arkansas, Ashley, Baxter, Boone, Bradley, Calhoun and 59 more | 115 min |
| Feb 24, 1:10 PM CST | Tornado Watch | SPC | Ashley, Chicot, Crittenden, Cross, Lee, Phillips and 1 more | 7 hr |
| Feb 24, 1:45 PM CST | Mesoscale Discussion | SPC | Ashley, Bradley, Chicot, Desha, Drew, Lincoln | 2 hr |
| Feb 24, 3:49 PM CST | Mesoscale Discussion | SPC | Ashley, Chicot, Desha, Drew, Phillips | 86 min |
| Feb 24, 4:31 PM CST | Mesoscale Discussion | SPC | Acadia, Allen, Avoyelles, Beauregard, Calcasieu, Cameron and 12 more | 59 min |
| Feb 23, 6:15 PM CST | Mesoscale Discussion | SPC | Beaver, Beckham, Ellis, Greer, Harmon, Harper and 2 more | 90 min |
| Feb 23, 7:35 PM CST | Mesoscale Discussion | SPC | Alfalfa, Blaine, Caddo, Canadian, Comanche, Cotton and 19 more | 85 min |
| Feb 23, 9:01 PM CST | Mesoscale Discussion | SPC | Alfalfa, Beaver, Beckham, Blaine, Caddo, Canadian and 18 more | 89 min |
| Feb 23, 9:26 PM CST | Tornado Watch | SPC | Alfalfa, Beaver, Beckham, Blaine, Caddo, Canadian and 41 more | 9 hr |
| Feb 23, 11:35 PM CST | Mesoscale Discussion | SPC | Atoka, Bryan, Carter, Choctaw, Cleveland, Coal and 23 more | 115 min |
| Feb 24, 3:38 AM CST | Mesoscale Discussion | SPC | Alfalfa, Beckham, Blaine, Caddo, Canadian, Carter and 43 more | 97 min |
| Feb 24, 5:20 AM CST | Mesoscale Discussion | SPC | Carter, Cleveland, Creek, Garvin, Hughes, Jefferson and 16 more | 55 min |
Nearby
Mesoscale Discussions in Arkansas, 2007Mesoscale Discussions in Texas, 2007Mesoscale Discussions in Louisiana, 2007Every mesoscale discussion in 2007
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.