Alert archive / Texas / Mesoscale Discussions in 2008
Mesoscale Discussion 747
The Storm Prediction Center issued this mesoscale discussion at Apr 27, 2008, 1:46 AM CDT for 81 counties in Texas. It was in force for 29 min.
The area
The outline as issued.
The facts
- Issued
- Apr 27, 2008, 1:46 AM CDT (06:46 UTC)
- Expired
- Apr 27, 2008, 2:15 AM CDT
- In force
- 29 min
- Issued by
- the Storm Prediction Center
All 81 counties
Anderson County, TX, Bandera County, TX, Bastrop County, TX, Bell County, TX, Blanco County, TX, Bosque County, TX, Brazos County, TX, Brown County, TX, Burleson County, TX, Burnet County, TX, Caldwell County, TX, Callahan County, TX, Cherokee County, TX, Coke County, TX, Coleman County, TX, Comal County, TX, Comanche County, TX, Concho County, TX, Coryell County, TX, Crockett County, TX, Eastland County, TX, Edwards County, TX, Ellis County, TX, Erath County, TX, Falls County, TX, Freestone County, TX, Gillespie County, TX, Glasscock County, TX, Grimes County, TX, Hamilton County, TX, Hays County, TX, Henderson County, TX, Hill County, TX, Hood County, TX, Houston County, TX, Howard County, TX, Irion County, TX, Johnson County, TX, Kaufman County, TX, Kendall County, TX, Kerr County, TX, Kimble County, TX, Lampasas County, TX, Lee County, TX, Leon County, TX, Limestone County, TX, Llano County, TX, Madison County, TX, Mason County, TX, McCulloch County, TX, McLennan County, TX, Menard County, TX, Midland County, TX, Milam County, TX, Mills County, TX, Mitchell County, TX, Navarro County, TX, Nolan County, TX, Reagan County, TX, Real County, TX, Robertson County, TX, Runnels County, TX, San Saba County, TX, Schleicher County, TX, Smith County, TX, Somervell County, TX, Sterling County, TX, Sutton County, TX, Taylor County, TX, Terrell County, TX, Tom Green County, TX, Travis County, TX, Trinity County, TX, Upshur County, TX, Upton County, TX, Val Verde County, TX, Van Zandt County, TX, Walker County, TX, Washington County, TX, Williamson County, TX, Wood County, TX
The radar
The Ft Hood radar (KGRK), 143 km from the middle of the area, began a volume at 06:47 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
Fort Worth, TX (KFWD), launched 00:00Z, 6.8 hours before the alert went out and 224 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1198 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- -2 m²/s²
- 0-3 km storm-relative helicity
- 165 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
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 26, 9:33 PM CDT | Mesoscale Discussion | SPC | Coke, Concho, Crockett, Glasscock, Irion, Menard and 6 more | 87 min |
| Apr 26, 11:34 PM CDT | Severe Thunderstorm Watch | SPC | Bandera, Bastrop, Bell, Blanco, Brown, Burnet and 33 more | 5 hr |
| Apr 27, 3:39 AM CDT | Mesoscale Discussion | SPC | Anderson, Bandera, Bastrop, Bell, Bexar, Blanco and 45 more | 36 min |
| Apr 27, 4:34 AM CDT | Severe Thunderstorm Watch | SPC | Atascosa, Austin, Bandera, Bastrop, Bell, Bexar and 54 more | 7 hr |
| Apr 27, 7:45 AM CDT | Mesoscale Discussion | SPC | Atascosa, Austin, Bandera, Bastrop, Bell, Bexar and 59 more | 60 min |
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.