Alert archive / Texas / Mesoscale Discussions in 2005
Mesoscale Discussion 263
The Storm Prediction Center issued this mesoscale discussion at Mar 7, 2005, 9:08 AM CST for 59 counties in Texas. It was in force for 97 min.
The area
The outline as issued.
The facts
- Issued
- Mar 7, 2005, 9:08 AM CST (15:08 UTC)
- Expired
- Mar 7, 2005, 10:45 AM CST
- In force
- 97 min
- Issued by
- the Storm Prediction Center
All 59 counties
Angelina County, TX, Aransas County, TX, Atascosa County, TX, Austin County, TX, Bastrop County, TX, Bee County, TX, Bexar County, TX, Brazoria County, TX, Brazos County, TX, Burleson County, TX, Caldwell County, TX, Calhoun County, TX, Chambers County, TX, Colorado County, TX, Comal County, TX, DeWitt County, TX, Fayette County, TX, Fort Bend County, TX, Galveston County, TX, Goliad County, TX, Gonzales County, TX, Grimes County, TX, Guadalupe County, TX, Hardin County, TX, Harris County, TX, Hays County, TX, Houston County, TX, Jackson County, TX, Jasper County, TX, Jefferson County, TX, Jim Wells County, TX, Karnes County, TX, Lavaca County, TX, Lee County, TX, Leon County, TX, Liberty County, TX, Live Oak County, TX, Madison County, TX, Matagorda County, TX, Milam County, TX, Montgomery County, TX, Nacogdoches County, TX, Orange County, TX, Polk County, TX, Refugio County, TX, Robertson County, TX, San Augustine County, TX, San Jacinto County, TX, San Patricio County, TX, Travis County, TX, Trinity County, TX, Tyler County, TX, Victoria County, TX, Walker County, TX, Waller County, TX, Washington County, TX, Wharton County, TX, Williamson County, TX, Wilson 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
Corpus Christi, TX (KCRP), launched 12:00Z, 3.1 hours before the alert went out and 272 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
- 572 J/kg
- Mixed-layer CIN
- -111 J/kg
- Mixed-layer LCL
- 693 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 200 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 3.6
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 7, 11:50 AM CST | Severe Thunderstorm Watch | SPC | Angelina, Austin, Brazoria, Brazos, Burleson, Calhoun and 25 more | 6 hr |
| Mar 7, 12:00 PM CST | Mesoscale Discussion | SPC | Anderson, Bosque, Bowie, Camp, Cass, Collin and 27 more | 2 hr |
| Mar 7, 12:50 PM CST | Severe Thunderstorm Watch | SPC | Anderson, Bowie, Brazos, Camp, Cass, Cherokee and 19 more | 5 hr |
| Mar 7, 3:31 PM CST | Mesoscale Discussion | SPC | Anderson, Cass, Cherokee, Freestone, Gregg, Harrison and 14 more | 89 min |
| Mar 7, 3:39 PM CST | Mesoscale Discussion | SPC | Angelina, Austin, Brazoria, Brazos, Burleson, Calhoun and 25 more | 96 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.