Alert archive / Louisiana / Mesoscale Discussions in 2007
Mesoscale Discussion 200
The Storm Prediction Center issued this mesoscale discussion at Feb 24, 2007, 4:31 PM CST for 18 parishes in Louisiana; Newton County, Orange County, Texas. It was in force for 59 min.
The area
The outline as issued.
The facts
- Issued
- Feb 24, 2007, 4:31 PM CST (22:31 UTC)
- Expired
- Feb 24, 2007, 5:30 PM CST
- In force
- 59 min
- Issued by
- the Storm Prediction Center
Counties Acadia Parish, LA, Allen Parish, LA, Avoyelles Parish, LA, Beauregard Parish, LA, Calcasieu Parish, LA, Cameron Parish, LA, East Baton Rouge Parish, LA, Evangeline Parish, LA, Iberville Parish, LA, Jefferson Davis Parish, LA, Lafayette Parish, LA, Pointe Coupee Parish, LA, Saint Landry Parish, LA, Saint Martin Parish, LA, Vermilion Parish, LA, Vernon Parish, LA, West Baton Rouge Parish, LA, West Feliciana Parish, LA, Newton County, TX, Orange County, TX
The radar
The Lake Charles radar (KLCH), 65 km from the middle of the area, began a volume at 22:32 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 nearest sounding before it
Shreveport, LA (KSHV), launched 12:00Z, 10.5 hours before the alert went out and 238 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, 8:29 AM CST | Mesoscale Discussion | SPC | Bienville, Bossier, Caddo, Claiborne, Webster | 61 min |
| Feb 24, 8:47 AM CST | Tornado Watch | SPC | Bienville, Bossier, Caddo, Claiborne, De Soto, Jackson and 7 more | 9 hr |
| Feb 24, 10:35 AM CST | Mesoscale Discussion | SPC | Bienville, Bossier, Caddo, Caldwell, Claiborne, De Soto and 11 more | 115 min |
| Feb 24, 1:10 PM CST | Tornado Watch | SPC | Caldwell, Catahoula, Concordia, East Carroll, Franklin, Grant and 7 more | 7 hr |
| Feb 24, 1:45 PM CST | Mesoscale Discussion | SPC | Union | 2 hr |
| Feb 24, 3:49 PM CST | Mesoscale Discussion | SPC | Morehouse, West Carroll | 86 min |
| Feb 23, 6:15 PM CST | Mesoscale Discussion | SPC | Armstrong, Briscoe, Childress, Collingsworth, Cottle, Crosby and 19 more | 90 min |
| Feb 23, 7:35 PM CST | Mesoscale Discussion | SPC | Wichita, Wilbarger | 85 min |
| Feb 23, 9:01 PM CST | Mesoscale Discussion | SPC | Archer, Armstrong, Baylor, Briscoe, Childress, Clay and 28 more | 89 min |
| Feb 23, 9:26 PM CST | Tornado Watch | SPC | Archer, Baylor, Callahan, Childress, Clay, Collingsworth and 35 more | 9 hr |
| Feb 23, 11:35 PM CST | Mesoscale Discussion | SPC | Collin, Cooke, Dallas, Delta, Denton, Ellis and 12 more | 115 min |
| Feb 24, 3:38 AM CST | Mesoscale Discussion | SPC | Archer, Baylor, Callahan, Clay, Cooke, Eastland and 19 more | 97 min |
| Feb 24, 5:20 AM CST | Mesoscale Discussion | SPC | Comanche, Cooke, Eastland, Erath, Hood, Jack and 4 more | 55 min |
Nearby
Mesoscale Discussions in Louisiana, 2007Mesoscale Discussions in Texas, 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.