Alert archive / Texas / Mesoscale Discussions in 2005
Mesoscale Discussion 311
The Storm Prediction Center issued this mesoscale discussion at Mar 19, 2005, 4:38 PM CST for 38 counties in Texas. It was in force for 67 min.
The area
The outline as issued.
The facts
- Issued
- Mar 19, 2005, 4:38 PM CST (22:38 UTC)
- Expired
- Mar 19, 2005, 5:45 PM CST
- In force
- 67 min
- Issued by
- the Storm Prediction Center
All 38 counties
Angelina County, TX, Atascosa County, TX, Austin County, TX, Bee County, TX, Brazos County, TX, Burleson County, TX, Chambers County, TX, Colorado County, TX, DeWitt County, TX, Fayette County, TX, Fort Bend County, TX, Goliad County, TX, Gonzales County, TX, Grimes County, TX, Hardin County, TX, Harris County, TX, Houston County, TX, Jackson County, TX, Jasper County, TX, Karnes County, TX, Lavaca County, TX, Liberty County, TX, Live Oak County, TX, Madison County, TX, McMullen County, TX, Montgomery County, TX, Polk County, TX, Robertson County, TX, San Augustine County, TX, San Jacinto County, TX, Trinity County, TX, Tyler County, TX, Victoria County, TX, Walker County, TX, Waller County, TX, Washington County, TX, Wharton County, TX, Wilson County, TX
The radar
The Houston radar (KHGX), 137 km from the middle of the area, began a volume at 22:38 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
Corpus Christi, TX (KCRP), launched 12:00Z, 10.6 hours before the alert went out and 226 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
- 368 J/kg
- Mixed-layer CIN
- -139 J/kg
- Mixed-layer LCL
- 678 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 112 m²/s²
- 0-3 km storm-relative helicity
- 95 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
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 |
|---|---|---|---|---|
| Mar 19, 12:46 PM CST | Mesoscale Discussion | SPC | Austin, Bandera, Bastrop, Blanco, Burleson, Burnet and 15 more | 119 min |
| Mar 19, 1:40 PM CST | Severe Thunderstorm Watch | SPC | Bandera, Bastrop, Bexar, Blanco, Caldwell, Comal and 15 more | 7 hr |
| Mar 19, 3:27 PM CST | Mesoscale Discussion | SPC | Atascosa, Bastrop, Bexar, Blanco, Burleson, Caldwell and 15 more | 93 min |
| Mar 19, 5:00 PM CST | Severe Thunderstorm Watch | SPC | Angelina, Aransas, Austin, Bastrop, Bee, Brazoria and 38 more | 7 hr |
| Mar 19, 5:32 PM CST | Mesoscale Discussion | SPC | Hardin, Jasper, Jefferson, Newton, Orange, Tyler | 118 min |
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.