Alert archive / Texas / Mesoscale Discussions in 2018
Mesoscale Discussion 192
The Storm Prediction Center issued this mesoscale discussion at Mar 28, 2018, 6:53 PM CDT for 12 counties in Texas. It was in force for 97 min.
The area
The outline as issued.
The facts
- Issued
- Mar 28, 2018, 6:53 PM CDT (23:53 UTC)
- Expired
- Mar 28, 2018, 8:30 PM CDT
- In force
- 97 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
Counties Brooks County, TX, Cameron County, TX, Duval County, TX, Hidalgo County, TX, Jim Hogg County, TX, Jim Wells County, TX, Kenedy County, TX, Kleberg County, TX, Nueces County, TX, Starr County, TX, Willacy County, TX, Zapata County, TX
The radar
The Corpus Christi radar (KCRP), 106 km from the middle of the area, began a volume at 23:56 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
Corpus Christi, TX (KCRP), launched 12:00Z, 11.9 hours before the alert went out and 113 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
- 996 J/kg
- Mixed-layer CIN
- -96 J/kg
- Mixed-layer LCL
- 599 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 180 m²/s²
- 0-3 km storm-relative helicity
- 296 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 11.8
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 |
|---|---|---|---|---|
| Mar 27, 9:23 PM CDT | Mesoscale Discussion | SPC | Atascosa, Bandera, Bexar, Blanco, Caldwell, Comal and 20 more | 97 min |
| Mar 27, 9:51 PM CDT | Severe Thunderstorm Watch | SPC | Atascosa, Bastrop, Bexar, Caldwell, DeWitt, Dimmit and 15 more | 5 hr |
| Mar 27, 11:58 PM CDT | Mesoscale Discussion | SPC | Atascosa, Bastrop, Bexar, Caldwell, Comal, DeWitt and 17 more | 2 hr |
| Mar 28, 5:05 AM CDT | Mesoscale Discussion | SPC | Bastrop, Brazos, Burleson, Fayette, Grimes, Lee and 1 more | 85 min |
| Mar 28, 9:09 AM CDT | Mesoscale Discussion | SPC | Atascosa, Bexar, Frio, Medina, Wilson | 2 hr |
| Mar 28, 11:38 AM CDT | Mesoscale Discussion | SPC | Austin, Colorado, Fort Bend, Hardin, Harris, Jasper and 10 more | 67 min |
| Mar 28, 12:03 PM CDT | Tornado Watch | SPC | Angelina, Austin, Brazoria, Chambers, Colorado, Fort Bend and 24 more | 9 hr |
| Mar 28, 3:07 PM CDT | Mesoscale Discussion | SPC | Austin, Chambers, Fort Bend, Hardin, Harris, Jasper and 9 more | 113 min |
| Mar 28, 5:48 PM CDT | Mesoscale Discussion | SPC | Austin, Brazoria, Chambers, Colorado, Fort Bend, Hardin and 10 more | 87 min |
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.