Alert archive / Texas / Mesoscale Discussions in 2017
Mesoscale Discussion 57
The Storm Prediction Center issued this mesoscale discussion at Jan 15, 2017, 8:10 PM CST for 32 counties in Texas. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jan 15, 2017, 8:10 PM CST (02:10 UTC)
- Expired
- Jan 15, 2017, 10:15 PM CST
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 32 counties
Bandera County, TX, Bell County, TX, Blanco County, TX, Bosque County, TX, Burnet County, TX, Comal County, TX, Comanche County, TX, Coryell County, TX, Dallas County, TX, Ellis County, TX, Erath County, TX, Gillespie County, TX, Hamilton County, TX, Hays County, TX, Hill County, TX, Hood County, TX, Johnson County, TX, Kendall County, TX, Kerr County, TX, Lampasas County, TX, Llano County, TX, Mason County, TX, McLennan County, TX, Mills County, TX, Palo Pinto County, TX, Parker County, TX, Rockwall County, TX, San Saba County, TX, Somervell County, TX, Tarrant County, TX, Travis County, TX, Williamson County, TX
The radar
The Ft Hood radar (KGRK), 100 km from the middle of the area, began a volume at 02:13 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 00:00Z, 2.2 hours before the alert went out and 228 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
- 211 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 548 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 368 m²/s²
- 0-3 km storm-relative helicity
- 509 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.2
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 |
|---|---|---|---|---|
| Jan 15, 6:00 PM CST | Tornado Watch | SPC | Bandera, Bell, Blanco, Bosque, Burnet, Comal and 31 more | 6 hr |
| Jan 15, 6:36 PM CST | Mesoscale Discussion | SPC | Bandera, Brown, Callahan, Coke, Coleman, Concho and 23 more | 54 min |
| Jan 15, 10:58 PM CST | Mesoscale Discussion | SPC | Bandera, Bell, Blanco, Bosque, Burnet, Comal and 26 more | 62 min |
| Jan 16, 5:01 AM CST | Mesoscale Discussion | SPC | Fort Bend, Harris, Montgomery, Waller | 29 min |
| Jan 16, 2:02 PM CST | Mesoscale Discussion | SPC | Harrison, Marion | 118 min |
Nearby
Mesoscale Discussions in Texas, 2017Every mesoscale discussion in 2017
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.