Alert archive / Texas / Wind Advisories in 2017

Wind Advisory 5, NWS Austin/San Antonio, TX

April 29, 201724 counties in Texas

NWS Austin/San Antonio, TX issued this wind advisory at Apr 29, 2017, 9:17 PM CDT for 24 counties in Texas. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Apr 29, 2017, 9:17 PM CDT (02:17 UTC)
Expired
Apr 30, 2017, 1:00 AM CDT
In force
4 hr
Issued by
NWS Austin/San Antonio, TX
All 24 counties

Atascosa County, TX, Bandera County, TX, Bexar County, TX, Blanco County, TX, Burnet County, TX, Caldwell County, TX, Comal County, TX, Dimmit County, TX, Edwards County, TX, Frio County, TX, Gillespie County, TX, Guadalupe County, TX, Hays County, TX, Kendall County, TX, Kerr County, TX, Kinney County, TX, Llano County, TX, Maverick County, TX, Medina County, TX, Real County, TX, Uvalde County, TX, Val Verde County, TX, Wilson County, TX, Zavala County, TX

The radar

The Austin/San Antonio radar (KEWX), 102 km from the middle of the area, began a volume at 02:17 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

Del Rio, TX (KDLF), launched 00:00Z, 2.3 hours before the alert went out and 172 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.

Skew-T log-pSkew-T log-p diagram, Del Rio, TX at 00:00Z on 2017-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Del Rio, TX at 00:00Z on 2017-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -91 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2131 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
-91 m²/s²
0-3 km storm-relative helicity
582 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

140 
WWUS74 KEWX 300217
NPWEWX

URGENT - WEATHER MESSAGE
National Weather Service Austin/San Antonio TX
917 PM CDT Sat Apr 29 2017

TXZ171-172-183>191-202>208-217>221-228-300600-
/O.NEW.KEWX.WI.Y.0005.170430T0217Z-170430T0600Z/
Llano-Burnet-Val Verde-Edwards-Real-Kerr-Bandera-Gillespie-
Kendall-Blanco-Hays-Kinney-Uvalde-Medina-Bexar-Comal-Guadalupe-
Caldwell-Maverick-Zavala-Frio-Atascosa-Wilson-Dimmit-
Including the cities of Llano, Burnet, Del Rio, Rocksprings, 
Leakey, Kerrville, Bandera, Fredericksburg, Boerne, Blanco, 
San Marcos, Bracketville, Uvalde, Hondo, San Antonio, 
New Braunfels, Seguin, Lockhart, Eagle Pass, Crystal City, 
Pearsall, Pleasanton, Floresville, and Carrizo Springs
917 PM CDT Sat Apr 29 2017

...WIND ADVISORY IN EFFECT UNTIL 1 AM CDT SUNDAY...

The National Weather Service in Austin/San Antonio has issued a
Wind Advisory, which is in effect until 1 AM CDT Sunday. 

* TIMING...through this evening until around 1 AM CDT Sunday.

* WINDS...25 to 35 mph with gusts to 45 mph.

* IMPACTS...Loose items will be blown around, small tree 
  branches could be broken, and driving can be difficult 
  especially in high profile vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 26 to 39 mph are
expected. Winds this strong can make driving difficult...especially
for high profile vehicles. Use extra caution.

&&

$$

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 29, 7:56 PM CDTSpecial Weather StatementEWXCaldwell, Guadalupe49 min
Apr 29, 8:27 PM CDTSpecial Weather StatementEWXWilson33 min
Apr 29, 8:54 PM CDTSpecial Weather StatementEWXWilson51 min
Apr 29, 9:24 PM CDTSevere Thunderstorm WarningEWXAtascosa, Karnes, Wilson51 min
Apr 29, 9:45 PM CDTSpecial Weather StatementEWXKarnes45 min
Apr 29, 10:22 PM CDTSpecial Weather StatementEWXKarnes38 min
Apr 30, 2:30 AM CDTSpecial Weather StatementEWXWilson45 min

Nearby

Wind Advisories in Texas, 2017Every wind advisory 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.