Alert archive / Texas / Mesoscale Discussions in 2018
Mesoscale Discussion 1548
The Storm Prediction Center issued this mesoscale discussion at Oct 9, 2018, 10:19 AM CDT for 35 counties in Texas. It was in force for 116 min.
The area
The outline as issued.
The facts
- Issued
- Oct 9, 2018, 10:19 AM CDT (15:19 UTC)
- Expired
- Oct 9, 2018, 12:15 PM CDT
- In force
- 116 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 60%
All 35 counties
Atascosa County, TX, Bastrop County, TX, Bell County, TX, Bexar County, TX, Blanco County, TX, Bosque County, TX, Brazos County, TX, Burleson County, TX, Burnet County, TX, Caldwell County, TX, Comal County, TX, Coryell County, TX, DeWitt County, TX, Falls County, TX, Fayette County, TX, Freestone County, TX, Frio County, TX, Gonzales County, TX, Guadalupe County, TX, Hays County, TX, Hill County, TX, Karnes County, TX, Kendall County, TX, La Salle County, TX, Lee County, TX, Leon County, TX, Limestone County, TX, McLennan County, TX, Medina County, TX, Milam County, TX, Navarro County, TX, Robertson County, TX, Travis County, TX, Williamson County, TX, Wilson County, TX
The radar
The Austin/San Antonio radar (KEWX), 64 km from the middle of the area, began a volume at 15:20 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 nearest sounding before it
Fort Worth, TX (KFWD), launched 12:00Z, 3.3 hours before the alert went out and 290 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
- 1064 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 621 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 164 m²/s²
- 0-3 km storm-relative helicity
- 230 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 4.2
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 |
|---|---|---|---|---|
| Oct 8, 8:55 PM CDT | Mesoscale Discussion | SPC | Crockett, Edwards, Irion, Pecos, Reagan, Schleicher and 3 more | 95 min |
| Oct 9, 12:45 AM CDT | Severe Thunderstorm Watch | SPC | Brown, Callahan, Coke, Coleman, Concho, Crockett and 15 more | 6 hr |
| Oct 9, 3:40 AM CDT | Mesoscale Discussion | SPC | Brown, Coleman, Concho, Edwards, Kimble, Kinney and 7 more | 35 min |
| Oct 9, 5:52 AM CDT | Mesoscale Discussion | SPC | Bosque, Coryell, Hamilton, Hood, Johnson, Lampasas and 3 more | 53 min |
| Oct 9, 9:09 AM CDT | Mesoscale Discussion | SPC | Delta, Fannin, Hopkins, Hunt, Lamar, Red River | 2 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.