Alert archive / Texas / Mesoscale Discussions in 2006
Mesoscale Discussion 652
The Storm Prediction Center issued this mesoscale discussion at Apr 25, 2006, 1:35 PM CDT for 47 counties in Texas. It was in force for 115 min.
The area
The outline as issued.
The facts
- Issued
- Apr 25, 2006, 1:35 PM CDT (18:35 UTC)
- Expired
- Apr 25, 2006, 3:30 PM CDT
- In force
- 115 min
- Issued by
- the Storm Prediction Center
All 47 counties
Aransas County, TX, Atascosa County, TX, Austin County, TX, Bandera County, TX, Bastrop County, TX, Bee County, TX, Bexar County, TX, Brazoria County, TX, Burleson County, TX, Caldwell County, TX, Calhoun County, TX, Colorado County, TX, Comal County, TX, DeWitt County, TX, Dimmit County, TX, Duval County, TX, Fayette County, TX, Fort Bend County, TX, Frio County, TX, Goliad County, TX, Gonzales County, TX, Grimes County, TX, Guadalupe County, TX, Harris County, TX, Jackson County, TX, Jim Wells County, TX, Karnes County, TX, Kinney County, TX, La Salle County, TX, Lavaca County, TX, Lee County, TX, Live Oak County, TX, Matagorda County, TX, Maverick County, TX, McMullen County, TX, Medina County, TX, Montgomery County, TX, Refugio County, TX, San Patricio County, TX, Uvalde County, TX, Victoria County, TX, Waller County, TX, Washington County, TX, Webb County, TX, Wharton County, TX, Wilson County, TX, Zavala County, TX
The radar
The Austin/San Antonio radar (KEWX), 46 km from the middle of the area, began a volume at 18:41 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, 6.6 hours before the alert went out and 194 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
- 2338 J/kg
- Mixed-layer CIN
- -127 J/kg
- Mixed-layer LCL
- 553 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 95 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.0
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 25, 1:11 AM CDT | Mesoscale Discussion | SPC | Fannin, Lamar, Red River | 64 min |
| Apr 25, 1:35 AM CDT | Severe Thunderstorm Watch | SPC | Collin, Cooke, Delta, Denton, Fannin, Franklin and 7 more | 5 hr |
| Apr 25, 4:57 AM CDT | Mesoscale Discussion | SPC | Bowie, Fannin, Grayson, Lamar, Red River | 2 hr |
| Apr 25, 11:07 AM CDT | Mesoscale Discussion | SPC | Angelina, Brazos, Cherokee, Grimes, Hardin, Houston and 19 more | 83 min |
| Apr 25, 3:05 PM CDT | Severe Thunderstorm Watch | SPC | Aransas, Atascosa, Austin, Bee, Brazoria, Calhoun and 37 more | 7 hr |
| Apr 25, 3:52 PM CDT | Mesoscale Discussion | SPC | Bosque, Brown, Callahan, Coleman, Collin, Comanche and 35 more | 113 min |
Nearby
Mesoscale Discussions in Texas, 2006Every mesoscale discussion in 2006
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.