Alert archive / Texas / Mesoscale Discussions in 2019
Mesoscale Discussion 461
The Storm Prediction Center issued this mesoscale discussion at Apr 27, 2019, 2:34 PM CDT for 26 counties in Texas. It was in force for 116 min.
The area
The outline as issued.
The facts
- Issued
- Apr 27, 2019, 2:34 PM CDT (19:34 UTC)
- Expired
- Apr 27, 2019, 4:30 PM CDT
- In force
- 116 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 80%
All 26 counties
Archer County, TX, Armstrong County, TX, Baylor County, TX, Briscoe County, TX, Castro County, TX, Childress County, TX, Cottle County, TX, Crosby County, TX, Dickens County, TX, Floyd County, TX, Foard County, TX, Hale County, TX, Hall County, TX, Hardeman County, TX, Haskell County, TX, Kent County, TX, King County, TX, Knox County, TX, Motley County, TX, Randall County, TX, Stonewall County, TX, Swisher County, TX, Throckmorton County, TX, Wichita County, TX, Wilbarger County, TX, Young County, TX
The radar
The Lubbock radar (KLBB), 113 km from the middle of the area, began a volume at 19:35 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
Midland Regional, TX (KMAF), launched 12:00Z, 7.6 hours before the alert went out and 281 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
- 37 J/kg
- Mixed-layer CIN
- -613 J/kg
- Mixed-layer LCL
- 1924 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 273 m²/s²
- 0-3 km storm-relative helicity
- 384 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 27, 1:54 PM CDT | Mesoscale Discussion | SPC | Armstrong, Castro, Dallam, Deaf Smith, Hartley, Moore and 5 more | 96 min |
| Apr 27, 3:47 PM CDT | Severe Thunderstorm Watch | SPC | Archer, Baylor, Briscoe, Callahan, Castro, Childress and 31 more | 6 hr |
| Apr 27, 5:50 PM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Borden, Briscoe, Clay, Cottle and 26 more | 55 min |
Nearby
Mesoscale Discussions in Texas, 2019Every mesoscale discussion in 2019
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.