Alert archive / Texas / Severe Thunderstorm Watches in 2016
Severe Thunderstorm Watch 18
The Storm Prediction Center issued this severe thunderstorm watch at Feb 22, 2016, 10:14 PM CST for 46 counties in Texas. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 22, 2016, 10:14 PM CST (04:14 UTC)
- Expired
- Feb 23, 2016, 6:00 AM CST
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 46 counties
Aransas County, TX, Atascosa County, TX, Bandera County, TX, Bastrop County, TX, Bee County, TX, Bexar County, TX, Blanco County, TX, Brazoria County, TX, Burnet County, TX, Caldwell County, TX, Calhoun County, TX, Colorado County, TX, Comal County, TX, DeWitt County, TX, Dimmit County, TX, Edwards County, TX, Fayette County, TX, Fort Bend County, TX, Frio County, TX, Galveston County, TX, Gillespie County, TX, Goliad County, TX, Gonzales County, TX, Guadalupe County, TX, Hays County, TX, Jackson County, TX, Karnes County, TX, Kendall County, TX, Kerr County, TX, Kinney County, TX, La Salle County, TX, Lavaca County, TX, Live Oak County, TX, Llano County, TX, Matagorda County, TX, Maverick County, TX, McMullen County, TX, Medina County, TX, Real County, TX, Refugio County, TX, Travis County, TX, Uvalde County, TX, Victoria County, TX, Wharton County, TX, Wilson County, TX, Zavala County, TX
The radar
The Austin/San Antonio radar (KEWX), 106 km from the middle of the area, began a volume at 04:16 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 5%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 40%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 60%
Warnings issued inside it
12 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 22, 10:58 PM CST | Severe Thunderstorm Warning | EWX | Kinney, Maverick, Uvalde, Zavala | 62 min |
| Feb 22, 11:54 PM CST | Severe Thunderstorm Warning | EWX | Dimmit, Frio, Medina, Uvalde, Zavala | 66 min |
| Feb 23, 12:31 AM CST | Severe Thunderstorm Warning | CRP | La Salle | 29 min |
| Feb 23, 12:41 AM CST | Severe Thunderstorm Warning | EWX | Atascosa, Frio | 64 min |
| Feb 23, 12:56 AM CST | Severe Thunderstorm Warning | EWX | Frio, Zavala | 64 min |
| Feb 23, 12:59 AM CST | Severe Thunderstorm Warning | CRP | La Salle, Live Oak, McMullen | 46 min |
| Feb 23, 2:28 AM CST | Severe Thunderstorm Warning | CRP | Bee, Goliad, Refugio, Victoria | 47 min |
| Feb 23, 2:38 AM CST | Severe Thunderstorm Warning | CRP | Bee, Live Oak, McMullen | 37 min |
| Feb 23, 3:14 AM CST | Severe Thunderstorm Warning | CRP | Bee, Goliad, Live Oak | 46 min |
| Feb 23, 3:34 AM CST | Severe Thunderstorm Warning | CRP | McMullen | 41 min |
| Feb 23, 3:51 AM CST | Severe Thunderstorm Warning | CRP | Bee, Goliad | 13 min |
| Feb 23, 4:37 AM CST | Flash Flood Warning | CRP | Bee, Live Oak | 3 hr |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Del Rio, TX (KDLF), launched 00:00Z, 4.2 hours before the alert went out and 171 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 870 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 70 m²/s²
- 0-3 km storm-relative helicity
- 233 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 22, 6:24 PM CST | Mesoscale Discussion | SPC | Crane, Crockett, Edwards, Irion, Kimble, Kinney and 11 more | 2 hr |
| Feb 22, 11:46 PM CST | Mesoscale Discussion | SPC | Atascosa, Bandera, Bastrop, Bee, Bexar, Blanco and 31 more | 89 min |
| Feb 23, 2:54 AM CST | Mesoscale Discussion | SPC | Aransas, Atascosa, Bee, Bexar, Brazoria, Calhoun and 19 more | 96 min |
| Feb 23, 8:00 AM CST | Mesoscale Discussion | SPC | Chambers, Galveston, Jefferson, Orange | 60 min |
| Feb 23, 12:11 PM CST | Mesoscale Discussion | SPC | Chambers, Hardin, Harris, Jasper, Jefferson, Liberty and 4 more | 2 hr |
Nearby
Severe Thunderstorm Watches in Texas, 2016Every severe thunderstorm watch in 2016
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.