Alert archive / Texas / Mesoscale Discussions in 2008
Mesoscale Discussion 543
The Storm Prediction Center issued this mesoscale discussion at Apr 3, 2008, 5:32 PM CDT for 15 counties in Arkansas; 4 counties in Oklahoma; 30 counties in Texas. It was in force for 58 min.
The area
The outline as issued.
The facts
- Issued
- Apr 3, 2008, 5:32 PM CDT (22:32 UTC)
- Expired
- Apr 3, 2008, 6:30 PM CDT
- In force
- 58 min
- Issued by
- the Storm Prediction Center
All 49 counties
Clark County, AR, Garland County, AR, Hempstead County, AR, Hot Spring County, AR, Howard County, AR, Lafayette County, AR, Little River County, AR, Miller County, AR, Montgomery County, AR, Nevada County, AR, Ouachita County, AR, Pike County, AR, Polk County, AR, Saline County, AR, Sevier County, AR, Bryan County, OK, Choctaw County, OK, Marshall County, OK, McCurtain County, OK, Bowie County, TX, Camp County, TX, Cass County, TX, Collin County, TX, Cooke County, TX, Dallas County, TX, Delta County, TX, Denton County, TX, Ellis County, TX, Fannin County, TX, Franklin County, TX, Grayson County, TX, Hood County, TX, Hopkins County, TX, Hunt County, TX, Johnson County, TX, Kaufman County, TX, Lamar County, TX, Marion County, TX, Morris County, TX, Parker County, TX, Rains County, TX, Red River County, TX, Rockwall County, TX, Somervell County, TX, Tarrant County, TX, Titus County, TX, Upshur County, TX, Van Zandt County, TX, Wood County, TX
The radar
The Dallas/Ft Worth radar (KFWS), 142 km from the middle of the area, began a volume at 22:35 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
Norman, OK (KOUN), launched 12:00Z, 10.5 hours before the alert went out and 285 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
- 199 J/kg
- Mixed-layer CIN
- -238 J/kg
- Mixed-layer LCL
- 410 m above ground
- 0-6 km bulk shear
- 74 kt
- 0-1 km storm-relative helicity
- 666 m²/s²
- 0-3 km storm-relative helicity
- 625 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 7.8
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 |
|---|---|---|---|---|
| Apr 3, 5:22 AM CDT | Mesoscale Discussion | SPC | Arkansas, Cleburne, Cleveland, Conway, Crawford, Cross and 25 more | 113 min |
| Apr 3, 2:39 PM CDT | Mesoscale Discussion | SPC | Benton, Crawford, Franklin, Johnson, Logan, Madison and 6 more | 66 min |
| Apr 3, 3:50 PM CDT | Tornado Watch | SPC | Baxter, Benton, Boone, Carroll, Cleburne, Conway and 20 more | 5 hr |
| Apr 3, 5:54 PM CDT | Tornado Watch | SPC | Howard, Little River, Miller, Sevier | 3 hr |
| Apr 3, 6:12 PM CDT | Mesoscale Discussion | SPC | Baxter, Benton, Boone, Carroll, Crawford, Franklin and 9 more | 2 hr |
| Apr 3, 10:47 AM CDT | Mesoscale Discussion | SPC | Atoka, Bryan, Carter, Choctaw, Coal, Jefferson and 5 more | 58 min |
| Apr 3, 1:42 PM CDT | Mesoscale Discussion | SPC | Caddo, Canadian, Carter, Cleveland, Comanche, Cotton and 17 more | 93 min |
| Apr 3, 2:04 PM CDT | Tornado Watch | SPC | Atoka, Bryan, Caddo, Canadian, Carter, Cleveland and 23 more | 6 hr |
| Apr 3, 3:28 PM CDT | Mesoscale Discussion | SPC | Coke, Crockett, Glasscock, Irion, Reagan, Sterling and 3 more | 62 min |
| Apr 3, 4:40 PM CDT | Tornado Watch | SPC | Crockett, Edwards, Kinney, Schleicher, Sutton, Terrell and 1 more | 3 hr |
Nearby
Mesoscale Discussions in Texas, 2008Mesoscale Discussions in Arkansas, 2008Mesoscale Discussions in Oklahoma, 2008Every mesoscale discussion in 2008
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.