Alert archive / Texas / Mesoscale Discussions in 2004
Mesoscale Discussion 2504
The Storm Prediction Center issued this mesoscale discussion at Dec 6, 2004, 1:30 PM CST for 23 counties in Texas. It was in force for 90 min.
The area
The outline as issued.
The facts
- Issued
- Dec 6, 2004, 1:30 PM CST (19:30 UTC)
- Expired
- Dec 6, 2004, 3:00 PM CST
- In force
- 90 min
- Issued by
- the Storm Prediction Center
All 23 counties
Bosque County, TX, Brown County, TX, Callahan County, TX, Coleman County, TX, Comanche County, TX, Coryell County, TX, Denton County, TX, Eastland County, TX, Erath County, TX, Hamilton County, TX, Hill County, TX, Hood County, TX, Jack County, TX, Johnson County, TX, Mills County, TX, Palo Pinto County, TX, Parker County, TX, Shackelford County, TX, Somervell County, TX, Stephens County, TX, Tarrant County, TX, Wise County, TX, Young County, TX
The watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Fort Worth, TX (KFWD), launched 12:00Z, 7.5 hours before the alert went out and 133 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
- 1269 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 145 m²/s²
- 0-3 km storm-relative helicity
- 239 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 |
|---|---|---|---|---|
| Dec 6, 10:35 AM CST | Mesoscale Discussion | SPC | Borden, Callahan, Coke, Coleman, Fisher, Glasscock and 16 more | 115 min |
| Dec 6, 11:55 AM CST | Severe Thunderstorm Watch | SPC | Callahan, Coke, Coleman, Concho, Fisher, Haskell and 8 more | 5 hr |
| Dec 6, 12:20 PM CST | Mesoscale Discussion | SPC | Archer, Baylor, Clay, Foard, Hardeman, Jack and 6 more | 115 min |
| Dec 6, 12:40 PM CST | Severe Thunderstorm Watch | SPC | Archer, Baylor, Clay, Cooke, Hardeman, Knox and 3 more | 5 hr |
| Dec 6, 1:45 PM CST | Severe Thunderstorm Watch | SPC | Archer, Bosque, Brown, Clay, Collin, Comanche and 30 more | 6 hr |
| Dec 6, 4:58 PM CST | Mesoscale Discussion | SPC | Anderson, Baylor, Bosque, Bowie, Brown, Camp and 46 more | 92 min |
| Dec 6, 5:45 PM CST | Severe Thunderstorm Watch | SPC | Anderson, Bowie, Camp, Cass, Cherokee, Franklin and 13 more | 5 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.