Alert archive / Texas / Mesoscale Discussions in 2016
Mesoscale Discussion 425
The Storm Prediction Center issued this mesoscale discussion at Apr 20, 2016, 4:54 PM CDT for 33 counties in Texas. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 20, 2016, 4:54 PM CDT (21:54 UTC)
- Expired
- Apr 20, 2016, 7:00 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 60%
All 33 counties
Armstrong County, TX, Borden County, TX, Briscoe County, TX, Carson County, TX, Childress County, TX, Collingsworth County, TX, Cottle County, TX, Crosby County, TX, Dickens County, TX, Donley County, TX, Floyd County, TX, Foard County, TX, Garza County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hansford County, TX, Hemphill County, TX, Hutchinson County, TX, Kent County, TX, King County, TX, Lubbock County, TX, Lynn County, TX, Moore County, TX, Motley County, TX, Ochiltree County, TX, Potter County, TX, Roberts County, TX, Scurry County, TX, Sherman County, TX, Stonewall County, TX, Swisher County, TX, Wheeler County, TX
The radar
The Amarillo radar (KAMA), 83 km from the middle of the area, began a volume at 21:56 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
Amarillo Airport, TX (KAMA), launched 12:00Z, 9.9 hours before the alert went out and 83 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
- 1313 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 70 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 19, 8:45 PM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Bell, Blanco, Borden, Bosque and 67 more | 3 hr |
| Apr 19, 9:59 PM CDT | Severe Thunderstorm Watch | SPC | Brown, Callahan, Coleman, Comanche, Cooke, Eastland and 16 more | 5 hr |
| Apr 19, 11:39 PM CDT | Mesoscale Discussion | SPC | Brown, Callahan, Coke, Coleman, Collin, Comanche and 25 more | 2 hr |
| Apr 20, 1:37 AM CDT | Mesoscale Discussion | SPC | Brown, Callahan, Coleman, Collin, Comanche, Dallas and 14 more | 53 min |
| Apr 20, 2:41 PM CDT | Mesoscale Discussion | SPC | Concho, Crockett, Irion, Kimble, McCulloch, Mason and 6 more | 2 hr |
Nearby
Mesoscale Discussions in Texas, 2016Every mesoscale discussion in 2016
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.