Alert archive / Texas / Mesoscale Discussions in 2008
Mesoscale Discussion 330
The Storm Prediction Center issued this mesoscale discussion at Mar 3, 2008, 10:18 AM CST for 9 counties in Arkansas; 11 parishes in Louisiana; 49 counties in Texas. It was in force for 87 min.
The area
The outline as issued.
The facts
- Issued
- Mar 3, 2008, 10:18 AM CST (16:18 UTC)
- Expired
- Mar 3, 2008, 11:45 AM CST
- In force
- 87 min
- Issued by
- the Storm Prediction Center
All 69 counties
Columbia County, AR, Hempstead County, AR, Howard County, AR, Lafayette County, AR, Little River County, AR, Miller County, AR, Nevada County, AR, Sevier County, AR, Union County, AR, Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Claiborne Parish, LA, De Soto Parish, LA, Lincoln Parish, LA, Natchitoches Parish, LA, Red River Parish, LA, Sabine Parish, LA, Union Parish, LA, Webster Parish, LA, Angelina County, TX, Austin County, TX, Bowie County, TX, Brazoria County, TX, Brazos County, TX, Burleson County, TX, Camp County, TX, Cass County, TX, Chambers County, TX, Cherokee County, TX, Colorado County, TX, Fayette County, TX, Fort Bend County, TX, Franklin County, TX, Galveston County, TX, Gregg County, TX, Grimes County, TX, Hardin County, TX, Harris County, TX, Harrison County, TX, Houston County, TX, Jasper County, TX, Lavaca County, TX, Lee County, TX, Liberty County, TX, Madison County, TX, Marion County, TX, Montgomery County, TX, Morris County, TX, Nacogdoches County, TX, Newton County, TX, Panola County, TX, Polk County, TX, Red River County, TX, Rusk County, TX, Sabine County, TX, San Augustine County, TX, San Jacinto County, TX, Shelby County, TX, Smith County, TX, Titus County, TX, Trinity County, TX, Tyler County, TX, Upshur County, TX, Walker County, TX, Waller County, TX, Washington County, TX, Wharton County, TX, Wood County, TX
The radar
The Shreveport radar (KSHV), 136 km from the middle of the area, began a volume at 16:20 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, 4.3 hours before the alert went out and 144 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
- 77 J/kg
- Mixed-layer CIN
- -167 J/kg
- Mixed-layer LCL
- 667 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 350 m²/s²
- 0-3 km storm-relative helicity
- 489 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 |
|---|---|---|---|---|
| Mar 2, 8:23 PM CST | Tornado Watch | SPC | Crawford, Franklin, Howard, Little River, Miller, Polk and 3 more | 8 hr |
| Mar 3, 1:36 AM CST | Mesoscale Discussion | SPC | Howard, Little River, Logan, Montgomery, Pike, Polk and 3 more | 54 min |
| Mar 3, 3:01 AM CST | Mesoscale Discussion | SPC | Clark, Cleburne, Conway, Dallas, Faulkner, Garland and 20 more | 89 min |
| Mar 3, 5:21 AM CST | Mesoscale Discussion | SPC | Lafayette, Miller | 84 min |
| Mar 3, 6:47 AM CST | Severe Thunderstorm Watch | SPC | Columbia, Hempstead, Howard, Lafayette, Little River, Miller and 3 more | 6 hr |
| Mar 3, 10:36 AM CST | Tornado Watch | SPC | Ashley, Bradley, Calhoun, Chicot, Cleveland, Columbia and 8 more | 9 hr |
| Mar 3, 1:25 PM CST | Mesoscale Discussion | SPC | Ashley, Chicot, Desha, Drew | 95 min |
| Mar 3, 2:25 PM CST | Tornado Watch | SPC | Ascension, Assumption, East Baton Rouge, East Feliciana, Iberia, Iberville and 19 more | 11 hr |
| Mar 3, 5:58 PM CST | Mesoscale Discussion | SPC | Ascension, Assumption, East Baton Rouge, East Feliciana, Iberia, Iberville and 19 more | 62 min |
| Mar 2, 6:05 PM CST | Tornado Watch | SPC | Bosque, Callahan, Collin, Comanche, Cooke, Dallas and 28 more | 8 hr |
| Mar 2, 8:01 PM CST | Mesoscale Discussion | SPC | Collin, Delta, Fannin, Franklin, Grayson, Hopkins and 4 more | 59 min |
| Mar 2, 11:04 PM CST | Mesoscale Discussion | SPC | Brown, Callahan, Coke, Coleman, Comanche, Concho and 12 more | 56 min |
| Mar 2, 11:27 PM CST | Severe Thunderstorm Watch | SPC | Brown, Coke, Coleman, Concho, Crockett, Irion and 13 more | 5 hr |
| Mar 3, 1:57 AM CST | Tornado Watch | SPC | Anderson, Bell, Bosque, Collin, Comanche, Coryell and 26 more | 6 hr |
| Mar 3, 3:24 AM CST | Mesoscale Discussion | SPC | Bastrop, Blanco, Brazos, Burleson, Burnet, Grimes and 9 more | 96 min |
Nearby
Mesoscale Discussions in Texas, 2008Mesoscale Discussions in Louisiana, 2008Mesoscale Discussions in Arkansas, 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.