Alert archive / Texas / Mesoscale Discussions in 2018
Mesoscale Discussion 428
The Storm Prediction Center issued this mesoscale discussion at May 15, 2018, 1:51 PM CDT for 28 counties in Texas. It was in force for 114 min.
The area
The outline as issued.
The facts
- Issued
- May 15, 2018, 1:51 PM CDT (18:51 UTC)
- Expired
- May 15, 2018, 3:45 PM CDT
- In force
- 114 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
All 28 counties
Borden County, TX, Coke County, TX, Crockett County, TX, Crosby County, TX, Dawson County, TX, Dickens County, TX, Fisher County, TX, Floyd County, TX, Garza County, TX, Glasscock County, TX, Hale County, TX, Howard County, TX, Irion County, TX, Kent County, TX, Lubbock County, TX, Lynn County, TX, Martin County, TX, Midland County, TX, Mitchell County, TX, Nolan County, TX, Reagan County, TX, Schleicher County, TX, Scurry County, TX, Sterling County, TX, Sutton County, TX, Terrell County, TX, Tom Green County, TX, Upton County, TX
The radar
The Midland/Odessa radar (KMAF), 52 km from the middle of the area, began a volume at 18:52 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, 6.9 hours before the alert went out and 53 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
- 474 J/kg
- Mixed-layer CIN
- -320 J/kg
- Mixed-layer LCL
- 1762 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 88 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 |
|---|---|---|---|---|
| May 14, 8:05 PM CDT | Mesoscale Discussion | SPC | Childress, Collingsworth, Cottle, Dickens, Foard, Hall and 5 more | 85 min |
| May 15, 2:32 PM CDT | Mesoscale Discussion | SPC | Dallam, Deaf Smith, Hartley, Oldham, Parmer | 118 min |
| May 15, 3:17 PM CDT | Mesoscale Discussion | SPC | Fannin, Grayson, Lamar | 88 min |
| May 15, 5:17 PM CDT | Severe Thunderstorm Watch | SPC | Armstrong, Bailey, Briscoe, Carson, Castro, Cottle and 24 more | 8 hr |
Nearby
Mesoscale Discussions in Texas, 2018Every mesoscale discussion in 2018
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.