Alert archive / Texas / Mesoscale Discussions in 2007
Mesoscale Discussion 286
The Storm Prediction Center issued this mesoscale discussion at Mar 14, 2007, 3:11 PM CDT for 31 counties in Texas. It was in force for 94 min.
The area
The outline as issued.
The facts
- Issued
- Mar 14, 2007, 3:11 PM CDT (20:11 UTC)
- Expired
- Mar 14, 2007, 4:45 PM CDT
- In force
- 94 min
- Issued by
- the Storm Prediction Center
All 31 counties
Aransas County, TX, Austin County, TX, Bastrop County, TX, Bee County, TX, Brazoria County, TX, Caldwell County, TX, Calhoun County, TX, Chambers County, TX, Colorado County, TX, DeWitt County, TX, Fayette County, TX, Fort Bend County, TX, Galveston County, TX, Goliad County, TX, Gonzales County, TX, Guadalupe County, TX, Harris County, TX, Hays County, TX, Jackson County, TX, Karnes County, TX, Lavaca County, TX, Lee County, TX, Liberty County, TX, Matagorda County, TX, Montgomery County, TX, Refugio County, TX, Travis County, TX, Victoria County, TX, Waller County, TX, Washington County, TX, Wharton County, TX
The radar
The Houston radar (KHGX), 138 km from the middle of the area, began a volume at 20:15 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 12:00Z, 8.2 hours before the alert went out and 215 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
- 1516 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 463 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 241 m²/s²
- 0-3 km storm-relative helicity
- 376 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 9.0
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 |
|---|---|---|---|---|
| Mar 13, 9:35 PM CDT | Mesoscale Discussion | SPC | Aransas, Bee, Brazoria, Calhoun, Chambers, Goliad and 6 more | 115 min |
| Mar 13, 11:11 PM CDT | Mesoscale Discussion | SPC | Brooks, Jim Hogg, Kenedy | 64 min |
| Mar 14, 9:52 AM CDT | Mesoscale Discussion | SPC | Aransas, Atascosa, Austin, Bastrop, Bee, Bell and 37 more | 113 min |
| Mar 14, 10:34 AM CDT | Severe Thunderstorm Watch | SPC | Aransas, Austin, Bee, Brazoria, Brazos, Burleson and 24 more | 8 hr |
| Mar 14, 1:05 PM CDT | Mesoscale Discussion | SPC | Angelina, Austin, Bastrop, Bell, Brazoria, Brazos and 33 more | 85 min |
| Mar 14, 6:17 PM CDT | Mesoscale Discussion | SPC | Jefferson, Orange | 88 min |
| Mar 14, 6:46 PM CDT | Mesoscale Discussion | SPC | Aransas, Austin, Bee, Calhoun, Colorado, DeWitt and 10 more | 59 min |
Nearby
Mesoscale Discussions in Texas, 2007Every mesoscale discussion in 2007
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.