Alert archive / Texas / Mesoscale Discussions in 2005
Mesoscale Discussion 538
The Storm Prediction Center issued this mesoscale discussion at Apr 10, 2005, 2:06 PM CDT for 24 counties in Texas. It was in force for 84 min.
The area
The outline as issued.
The facts
- Issued
- Apr 10, 2005, 2:06 PM CDT (19:06 UTC)
- Expired
- Apr 10, 2005, 3:30 PM CDT
- In force
- 84 min
- Issued by
- the Storm Prediction Center
All 24 counties
Bell County, TX, Bosque County, TX, Burnet County, TX, Clay County, TX, Cooke County, TX, Coryell County, TX, Denton County, TX, Erath County, TX, Falls County, TX, Hamilton County, TX, Hill County, TX, Hood County, TX, Jack County, TX, Johnson County, TX, Lampasas County, TX, Llano County, TX, McLennan County, TX, Milam County, TX, Montague County, TX, Palo Pinto County, TX, Parker County, TX, Somervell County, TX, Tarrant County, TX, Wise County, TX
The radar
The Dyess AFB radar (KDYX), 133 km from the middle of the area, began a volume at 19:04 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
Fort Worth, TX (KFWD), launched 12:00Z, 7.1 hours before the alert went out and 160 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
- 8 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 811 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 247 m²/s²
- 0-3 km storm-relative helicity
- 250 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 |
|---|---|---|---|---|
| Apr 9, 11:44 PM CDT | Mesoscale Discussion | SPC | Andrews, Armstrong, Borden, Briscoe, Carson, Childress and 34 more | 2 hr |
| Apr 10, 1:39 AM CDT | Mesoscale Discussion | SPC | Armstrong, Childress, Collingsworth, Donley, Gray, Hall and 3 more | 66 min |
| Apr 10, 3:30 PM CDT | Severe Thunderstorm Watch | SPC | Bandera, Bell, Bexar, Blanco, Bosque, Burnet and 43 more | 8 hr |
Nearby
Mesoscale Discussions in Texas, 2005Every mesoscale discussion in 2005
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.