Alert archive / Texas / Wind Advisories in 2018
Wind Advisory 4, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this wind advisory at Dec 20, 2018, 3:38 AM CST for 25 counties in Texas. It took effect at Dec 20, 2018, 9:00 AM CST. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Dec 20, 2018, 3:38 AM CST (09:38 UTC)
- In effect from
- Dec 20, 2018, 9:00 AM CST
- Expired
- Dec 20, 2018, 6:00 PM CST
- In force
- 9 hr
- Issued by
- NWS Austin/San Antonio, TX
All 25 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, Lavaca County, TX, Lee County, TX, Llano County, TX, Medina County, TX, Travis County, TX, Williamson County, TX, Wilson County, TX
The radar
The Austin/San Antonio radar (KEWX), 14 km from the middle of the area, began a volume at 09:40 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
Corpus Christi, TX (KCRP), launched 00:00Z, 9.6 hours before the alert went out and 242 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
- 2094 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
243 WWUS74 KEWX 200938 NPWEWX URGENT - WEATHER MESSAGE National Weather Service Austin/San Antonio TX 338 AM CST Thu Dec 20 2018 TXZ171>173-186>194-204>209-219>225-201745- /O.NEW.KEWX.WI.Y.0004.181220T1500Z-181221T0000Z/ Llano-Burnet-Williamson-Kerr-Bandera-Gillespie-Kendall-Blanco- Hays-Travis-Bastrop-Lee-Medina-Bexar-Comal-Guadalupe-Caldwell- Fayette-Frio-Atascosa-Wilson-Karnes-Gonzales-De Witt-Lavaca- Including the cities of Llano, Burnet, Georgetown, Kerrville, Bandera, Fredericksburg, Boerne, Blanco, San Marcos, Austin, Bastrop, Giddings, Hondo, San Antonio, New Braunfels, Seguin, Lockhart, La Grange, Pearsall, Pleasanton, Floresville, Karnes City, Gonzales, Cuero, and Halletsville 338 AM CST Thu Dec 20 2018 ...WIND ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 6 PM CST THIS EVENING... The National Weather Service in Austin/San Antonio has issued a Wind Advisory, which is in effect from 9 AM this morning to 6 PM CST this evening. * TIMING...Thursday morning increasing through the afternoon. * WINDS...Northwest around 25 MPH with gusts up to 35 MPH * IMPACTS...Lawn decorations and trash cans not secured could be blown around and damaged. Driving could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that winds of 35 mph are expected. Winds this strong can make driving difficult...especially for high profile vehicles. Use extra caution. && $$ YB
2 follow-up statements
077 WWUS74 KEWX 201724 NPWEWX URGENT - WEATHER MESSAGE National Weather Service Austin/San Antonio TX 1124 AM CST Thu Dec 20 2018 TXZ171>173-186>194-204>209-219>225-210000- /O.CON.KEWX.WI.Y.0004.000000T0000Z-181221T0000Z/ Llano-Burnet-Williamson-Kerr-Bandera-Gillespie-Kendall-Blanco- Hays-Travis-Bastrop-Lee-Medina-Bexar-Comal-Guadalupe-Caldwell- Fayette-Frio-Atascosa-Wilson-Karnes-Gonzales-De Witt-Lavaca- Including the cities of Llano, Burnet, Georgetown, Kerrville, Bandera, Fredericksburg, Boerne, Blanco, San Marcos, Austin, Bastrop, Giddings, Hondo, San Antonio, New Braunfels, Seguin, Lockhart, La Grange, Pearsall, Pleasanton, Floresville, Karnes City, Gonzales, Cuero, and Halletsville 1124 AM CST Thu Dec 20 2018 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING... * TIMING...Thursday afternoon into the evening hours. * WINDS...Northwest around 25 MPH with gusts up to 35 MPH * IMPACTS...Lawn decorations and trash cans not secured could be blown around and damaged. Driving could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that winds of 35 mph are expected. Winds this strong can make driving difficult...especially for high profile vehicles. Use extra caution. && $$
960 WWUS74 KEWX 202355 NPWEWX URGENT - WEATHER MESSAGE National Weather Service Austin/San Antonio TX 555 PM CST Thu Dec 20 2018 TXZ171>173-186>194-204>209-219>225-210100- /O.EXP.KEWX.WI.Y.0004.000000T0000Z-181221T0000Z/ Llano-Burnet-Williamson-Kerr-Bandera-Gillespie-Kendall-Blanco- Hays-Travis-Bastrop-Lee-Medina-Bexar-Comal-Guadalupe-Caldwell- Fayette-Frio-Atascosa-Wilson-Karnes-Gonzales-De Witt-Lavaca- Including the cities of Llano, Burnet, Georgetown, Kerrville, Bandera, Fredericksburg, Boerne, Blanco, San Marcos, Austin, Bastrop, Giddings, Hondo, San Antonio, New Braunfels, Seguin, Lockhart, La Grange, Pearsall, Pleasanton, Floresville, Karnes City, Gonzales, Cuero, and Halletsville 555 PM CST Thu Dec 20 2018 ...WIND ADVISORY WILL EXPIRE AT 6 PM CST THIS EVENING... Wind speeds and gusts will continue to diminish through the evening hours. $$
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 20, 3:15 PM CST | Red Flag Warning | EWX | Atascosa, Bandera, Bexar, Comal, Dimmit, Edwards and 13 more | 3 hr |
Nearby
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.