Alert archive / Texas / Mesoscale Discussions in 2004
Mesoscale Discussion 1962
The Storm Prediction Center issued this mesoscale discussion at Aug 11, 2004, 1:16 PM CDT for 50 counties in Texas. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 11, 2004, 1:16 PM CDT (18:16 UTC)
- Expired
- Aug 11, 2004, 3:45 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 50 counties
Anderson County, TX, Austin County, TX, Bandera County, TX, Bastrop County, TX, Bell County, TX, Bexar County, TX, Blanco County, TX, Brazos County, TX, Burleson County, TX, Burnet County, TX, Caldwell County, TX, Cherokee County, TX, Comal County, TX, Coryell County, TX, Falls County, TX, Fayette County, TX, Freestone County, TX, Gillespie County, TX, Gonzales County, TX, Grimes County, TX, Guadalupe County, TX, Hays County, TX, Henderson County, TX, Hill County, TX, Houston County, TX, Hunt County, TX, Kaufman County, TX, Kendall County, TX, Kerr County, TX, Lee County, TX, Leon County, TX, Limestone County, TX, Madison County, TX, McLennan County, TX, Medina County, TX, Milam County, TX, Montgomery County, TX, Navarro County, TX, Rains County, TX, Real County, TX, Robertson County, TX, San Jacinto County, TX, Smith County, TX, Travis County, TX, Trinity County, TX, Van Zandt County, TX, Walker County, TX, Waller County, TX, Washington County, TX, Williamson County, TX
The nearest sounding before it
Fort Worth, TX (KFWD), launched 12:00Z, 6.3 hours before the alert went out and 213 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
- 938 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 1547 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Aug 10, 11:30 PM CDT | Severe Thunderstorm Watch | SPC | Hansford, Hartley, Hemphill, Hutchinson, Lipscomb, Moore and 3 more | 5 hr |
| Aug 11, 1:05 AM CDT | Severe Thunderstorm Watch | SPC | Armstrong, Briscoe, Carson, Childress, Clay, Collingsworth and 14 more | 6 hr |
| Aug 11, 2:42 AM CDT | Mesoscale Discussion | SPC | Armstrong, Briscoe, Carson, Childress, Clay, Collingsworth and 15 more | 2 hr |
| Aug 11, 5:23 AM CDT | Mesoscale Discussion | SPC | Clay, Montague, Wichita, Wilbarger | 97 min |
| Aug 11, 6:49 AM CDT | Mesoscale Discussion | SPC | Bowie, Fannin, Lamar, Red River, Titus | 116 min |
| Aug 11, 12:22 PM CDT | Mesoscale Discussion | SPC | Cherokee, Gregg, Harrison, Marion, Nacogdoches, Panola and 2 more | 2 hr |
Nearby
Mesoscale Discussions in Texas, 2004Every mesoscale discussion in 2004
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.