Alert archive / Texas / Mesoscale Discussions in 2008
Mesoscale Discussion 203
The Storm Prediction Center issued this mesoscale discussion at Feb 12, 2008, 1:17 AM CST for 4 states. It was in force for 88 min.
The area
The outline as issued.
The facts
- Issued
- Feb 12, 2008, 1:17 AM CST (07:17 UTC)
- Expired
- Feb 12, 2008, 2:45 AM CST
- In force
- 88 min
- Issued by
- the Storm Prediction Center
All 91 counties
Calhoun County, AR, Clark County, AR, Cleveland County, AR, Columbia County, AR, Conway County, AR, Dallas County, AR, Faulkner County, AR, Garland County, AR, Grant County, AR, Hempstead County, AR, Hot Spring County, AR, Howard County, AR, Jefferson County, AR, Lafayette County, AR, Little River County, AR, Lonoke County, AR, Miller County, AR, Montgomery County, AR, Nevada County, AR, Ouachita County, AR, Perry County, AR, Pike County, AR, Polk County, AR, Prairie County, AR, Pulaski County, AR, Saline County, AR, Scott County, AR, Sevier County, AR, White County, AR, Woodruff County, AR, Yell County, AR, Bossier Parish, LA, Caddo Parish, LA, Atoka County, OK, Bryan County, OK, Choctaw County, OK, Marshall County, OK, McCurtain County, OK, Pushmataha County, OK, Anderson County, TX, Bosque County, TX, Bowie County, TX, Camp County, TX, Cass County, TX, Cherokee County, TX, Collin County, TX, Cooke County, TX, Dallas County, TX, Delta County, TX, Denton County, TX, Ellis County, TX, Erath County, TX, Falls County, TX, Fannin County, TX, Franklin County, TX, Freestone County, TX, Grayson County, TX, Gregg County, TX, Hamilton County, TX, Harrison County, TX, Henderson County, TX, Hill County, TX, Hood County, TX, Hopkins County, TX, Hunt County, TX, Jack County, TX, Johnson County, TX, Kaufman County, TX, Lamar County, TX, Leon County, TX, Limestone County, TX, Marion County, TX, McLennan County, TX, Morris County, TX, Navarro County, TX, Palo Pinto County, TX, Panola County, TX, Parker County, TX, Rains County, TX, Red River County, TX, Robertson County, TX, Rockwall County, TX, Rusk County, TX, Smith County, TX, Somervell County, TX, Tarrant County, TX, Titus County, TX, Upshur County, TX, Van Zandt County, TX, Wise County, TX, Wood County, TX
The radar
The Shreveport radar (KSHV), 146 km from the middle of the area, began a volume at 07:19 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
Norman, OK (KOUN), launched 00:00Z, 7.3 hours before the alert went out and 305 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 413 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 343 m²/s²
- 0-3 km storm-relative helicity
- 360 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.2
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 11, 9:48 PM CST | Severe Thunderstorm Watch | SPC | Clark, Cleburne, Conway, Faulkner, Garland, Grant and 28 more | 4 hr |
| Feb 11, 10:51 PM CST | Mesoscale Discussion | SPC | Cleburne, Conway, Faulkner, Franklin, Garland, Howard and 18 more | 114 min |
| Feb 11, 11:51 PM CST | Mesoscale Discussion | SPC | Baxter, Clay, Craighead, Fulton, Greene, Independence and 6 more | 5 hr |
| Feb 12, 7:50 AM CST | Mesoscale Discussion | SPC | Beauregard, Bienville, Claiborne, De Soto, Grant, Jackson and 7 more | 55 min |
| Feb 12, 9:53 AM CST | Mesoscale Discussion | SPC | Acadia, Allen, Ascension, Assumption, Avoyelles, Beauregard and 33 more | 67 min |
| Feb 12, 10:25 AM CST | Tornado Watch | SPC | Acadia, Allen, Ascension, Assumption, Avoyelles, Beauregard and 32 more | 7 hr |
| Feb 12, 12:40 PM CST | Mesoscale Discussion | SPC | Acadia, Ascension, Assumption, Calcasieu, Cameron, East Baton Rouge and 27 more | 65 min |
| Feb 12, 2:19 PM CST | Mesoscale Discussion | SPC | Ascension, Assumption, Iberia, Jefferson, Lafourche, Orleans and 11 more | 116 min |
| Feb 11, 7:57 PM CST | Severe Thunderstorm Watch | SPC | Atoka, Bryan, Carter, Choctaw, Coal, Garvin and 15 more | 6 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.