Alert archive / Texas / Mesoscale Discussions in 2015
Mesoscale Discussion 468
The Storm Prediction Center issued this mesoscale discussion at Apr 26, 2015, 2:54 PM CDT for 33 counties in Texas. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 26, 2015, 2:54 PM CDT (19:54 UTC)
- Expired
- Apr 26, 2015, 5:00 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 33 counties
Archer County, TX, Baylor County, TX, Brown County, TX, Callahan County, TX, Clay County, TX, Coleman County, TX, Comanche County, TX, Concho County, TX, Eastland County, TX, Erath County, TX, Foard County, TX, Haskell County, TX, Hood County, TX, Jack County, TX, Jones County, TX, Kimble County, TX, King County, TX, Knox County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, Mills County, TX, Palo Pinto County, TX, Runnels County, TX, San Saba County, TX, Shackelford County, TX, Stephens County, TX, Stonewall County, TX, Taylor County, TX, Throckmorton County, TX, Wichita County, TX, Wilbarger County, TX, Young 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
Fort Worth, TX (KFWD), launched 12:00Z, 7.9 hours before the alert went out and 197 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
- 3257 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 108 m²/s²
- 0-3 km storm-relative helicity
- 128 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, 10:55 AM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Bosque, Brown, Callahan, Clay and 30 more | 2 hr |
| Apr 26, 1:06 PM CDT | Tornado Watch | SPC | Archer, Baylor, Brown, Callahan, Childress, Clay and 27 more | 7 hr |
| Apr 26, 2:04 PM CDT | Mesoscale Discussion | SPC | Collingsworth | 2 hr |
| Apr 26, 2:52 PM CDT | Severe Thunderstorm Watch | SPC | Collingsworth, Donley, Wheeler | 5 hr |
| Apr 26, 3:18 PM CDT | Mesoscale Discussion | SPC | Armstrong, Carson, Dallam, Hartley, Moore, Potter | 117 min |
| Apr 26, 4:54 PM CDT | Tornado Watch | SPC | Bell, Bosque, Comanche, Coryell, Dallas, Eastland and 17 more | 6 hr |
| Apr 26, 5:24 PM CDT | Mesoscale Discussion | SPC | Brazoria, Chambers, Fort Bend, Galveston, Harris, Wharton | 96 min |
| Apr 26, 5:39 PM CDT | Tornado Watch | SPC | Brazoria, Fort Bend, Galveston, Harris, Jackson, Matagorda and 1 more | 2 hr |
| Apr 26, 5:51 PM CDT | Mesoscale Discussion | SPC | Brown, Coleman, Comanche, Eastland, Erath, Hamilton | 84 min |
| Apr 26, 6:44 PM CDT | Mesoscale Discussion | SPC | Brown, Coleman, Concho, Kimble, McCulloch, Mason and 2 more | 2 hr |
Nearby
Mesoscale Discussions in Texas, 2015Every mesoscale discussion in 2015
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.