Alert archive / Texas / Mesoscale Discussions in 2008
Mesoscale Discussion 741
The Storm Prediction Center issued this mesoscale discussion at Apr 25, 2008, 11:49 PM CDT for 23 counties in Texas. It was in force for 56 min.
The area
The outline as issued.
The facts
- Issued
- Apr 25, 2008, 11:49 PM CDT (04:49 UTC)
- Expired
- Apr 26, 2008, 12:45 AM CDT
- In force
- 56 min
- Issued by
- the Storm Prediction Center
All 23 counties
Atascosa County, TX, Austin County, TX, Bastrop County, TX, Bexar County, TX, Burleson County, TX, Caldwell County, TX, Colorado County, TX, Comal County, TX, DeWitt County, TX, Fayette County, TX, Frio County, TX, Gonzales County, TX, Guadalupe County, TX, Karnes County, TX, Lavaca County, TX, Lee County, TX, Maverick County, TX, Medina County, TX, Uvalde County, TX, Waller County, TX, Washington County, TX, Wilson County, TX, Zavala County, TX
The radar
The Austin/San Antonio radar (KEWX), 44 km from the middle of the area, began a volume at 04:49 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 nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 4.8 hours before the alert went out and 204 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
- 1723 J/kg
- Mixed-layer CIN
- -76 J/kg
- Mixed-layer LCL
- 588 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 30 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.8
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 25, 7:02 PM CDT | Mesoscale Discussion | SPC | Bell, Williamson | 88 min |
| Apr 25, 9:39 PM CDT | Mesoscale Discussion | SPC | Bandera, Bastrop, Blanco, Burnet, Comal, Edwards and 13 more | 66 min |
| Apr 26, 2:11 AM CDT | Mesoscale Discussion | SPC | Aransas, Atascosa, Bee, Brazoria, Brooks, Calhoun and 25 more | 94 min |
| Apr 26, 3:43 PM CDT | Mesoscale Discussion | SPC | Armstrong, Bailey, Borden, Briscoe, Carson, Castro and 31 more | 2 hr |
| Apr 26, 5:46 PM CDT | Mesoscale Discussion | SPC | Coke, Concho, Crockett, Glasscock, Irion, Menard and 6 more | 59 min |
| Apr 26, 6:04 PM CDT | Severe Thunderstorm Watch | SPC | Bandera, Baylor, Blanco, Borden, Brown, Callahan and 49 more | 7 hr |
Nearby
Mesoscale Discussions in Texas, 2008Every mesoscale discussion in 2008
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.