Alert archive / Texas / Mesoscale Discussions in 2020
Mesoscale Discussion 16
The Storm Prediction Center issued this mesoscale discussion at Jan 10, 2020, 2:52 PM CST for 23 counties in Texas. It was in force for 113 min.
The area
The outline as issued.
The facts
- Issued
- Jan 10, 2020, 2:52 PM CST (20:52 UTC)
- Expired
- Jan 10, 2020, 4:45 PM CST
- In force
- 113 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 80%
All 23 counties
Atascosa County, TX, Bandera County, TX, Bastrop County, TX, Bexar County, TX, Blanco County, TX, Burnet County, TX, Caldwell County, TX, Comal County, TX, DeWitt County, TX, Fayette County, TX, Frio County, TX, Gillespie County, TX, Gonzales County, TX, Guadalupe County, TX, Hays County, TX, Karnes County, TX, Kendall County, TX, Kerr County, TX, Medina County, TX, Travis County, TX, Uvalde County, TX, Williamson County, TX, Wilson County, TX
The radar
The Austin/San Antonio radar (KEWX), 36 km from the middle of the area, began a volume at 20:55 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
Del Rio, TX (KDRT), launched 12:00Z, 8.9 hours before the alert went out and 239 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
- 27 J/kg
- Mixed-layer CIN
- -707 J/kg
- Mixed-layer LCL
- 986 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 384 m²/s²
- 0-3 km storm-relative helicity
- 456 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 |
|---|---|---|---|---|
| Jan 10, 11:47 AM CST | Mesoscale Discussion | SPC | Bosque, Collin, Comanche, Cooke, Dallas, Delta and 19 more | 118 min |
| Jan 10, 1:20 PM CST | Tornado Watch | SPC | Anderson, Bell, Bosque, Collin, Cooke, Coryell and 33 more | 11 hr |
| Jan 10, 1:44 PM CST | Mesoscale Discussion | SPC | Delta, Fannin, Grayson, Hopkins, Hunt, Lamar and 1 more | 91 min |
| Jan 10, 2:59 PM CST | Mesoscale Discussion | SPC | Bosque, Collin, Dallas, Delta, Denton, Ellis and 13 more | 2 hr |
| Jan 10, 3:30 PM CST | Severe Thunderstorm Watch | SPC | Atascosa, Bandera, Bastrop, Bee, Bexar, Blanco and 26 more | 68 days |
| Jan 10, 4:55 PM CST | Mesoscale Discussion | SPC | Anderson, Angelina, Bell, Bosque, Bowie, Camp and 48 more | 2 hr |
| Jan 10, 5:34 PM CST | Tornado Watch | SPC | Angelina, Bowie, Camp, Cass, Cherokee, Franklin and 14 more | 11 hr |
Nearby
Mesoscale Discussions in Texas, 2020Every mesoscale discussion in 2020
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.