Alert archive / Texas / Wind Advisories in 2017
Wind Advisory 7, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this wind advisory at Aug 27, 2017, 4:20 PM CDT for 13 counties in Texas. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Aug 27, 2017, 4:20 PM CDT (21:20 UTC)
- Expired
- Aug 28, 2017, 4:10 AM CDT
- In force
- 12 hr
- Issued by
- NWS Austin/San Antonio, TX
Counties Atascosa County, TX, Bastrop County, TX, Bexar County, TX, Caldwell County, TX, Comal County, TX, Fayette County, TX, Guadalupe County, TX, Hays County, TX, Karnes County, TX, Lee County, TX, Travis County, TX, Williamson County, TX, Wilson County, TX
The radar
The Austin/San Antonio radar (KEWX), 23 km from the middle of the area, began a volume at 21:24 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 12:00Z, 9.3 hours before the alert went out and 231 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
- 2 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 840 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 96 m²/s²
- 0-3 km storm-relative helicity
- 153 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
012 WWUS74 KEWX 272120 NPWEWX URGENT - WEATHER MESSAGE National Weather Service Austin/San Antonio TX 420 PM CDT Sun Aug 27 2017 TXZ173-192-194-280530- /O.EXP.KEWX.WI.Y.0006.000000T0000Z-170827T2100Z/ /O.NEW.KEWX.WI.Y.0007.170827T2120Z-170828T0600Z/ Williamson-Travis-Lee- Including the cities of Georgetown, Austin, and Giddings 420 PM CDT Sun Aug 27 2017 ...WIND ADVISORY IN EFFECT UNTIL 1 AM CDT MONDAY... The National Weather Service in Austin/San Antonio has issued a Wind Advisory, which is in effect until 1 AM CDT Monday. * TIMING...Through 1 AM. * WINDS...Sustained winds of 25 to 35 mph with gusts to 40 mph. * IMPACTS...Driving high profile vehicles will be difficult through the day. Large tree limbs could fall and cause damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that winds of 26 to 39 mph are expected. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ TXZ191-193-205-206-209-220-280530- /O.NEW.KEWX.WI.Y.0007.170827T2120Z-170828T0600Z/ Hays-Bastrop-Bexar-Comal-Fayette-Atascosa- Including the cities of San Marcos, Bastrop, San Antonio, New Braunfels, La Grange, and Pleasanton 420 PM CDT Sun Aug 27 2017 ...WIND ADVISORY IN EFFECT UNTIL 1 AM CDT MONDAY... The National Weather Service in Austin/San Antonio has issued a Wind Advisory, which is in effect until 1 AM CDT Monday. * TIMING...Through 1 AM. * WINDS...Sustained winds of 25 to 35 mph with gusts to 40 mph. * IMPACTS...Driving high profile vehicles will be difficult through the day. Large tree limbs could fall and cause damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that winds of 26 to 39 mph are expected. Winds this strong can make driving difficult...especially for high profile vehicles. Use extra caution. && $$
2 follow-up statements
465 WWUS74 KEWX 280330 AAA NPWEWX URGENT - WEATHER MESSAGE...UPDATED National Weather Service Austin/San Antonio TX 1030 PM CDT Sun Aug 27 2017 TXZ173-205-220-280430- /O.CAN.KEWX.WI.Y.0007.000000T0000Z-170828T0600Z/ Williamson-Bexar-Atascosa- Including the cities of Georgetown, San Antonio, and Pleasanton 1030 PM CDT Sun Aug 27 2017 ...WIND ADVISORY IS CANCELLED... The National Weather Service in Austin/San Antonio has cancelled the Wind Advisory for Williamson, Bexar and Atascosa counties. Latest surface observations across these counties show wind speeds below the wind advisory criteria. However, there are still some wind gusts reports of 20 to 30 mph and expected to remain like that through the overnight hours. $$ TXZ207-208-221-222-281130- /O.EXB.KEWX.WI.Y.0007.000000T0000Z-170828T1800Z/ Guadalupe-Caldwell-Wilson-Karnes- Including the cities of Seguin, Lockhart, Floresville, and Karnes City 1030 PM CDT Sun Aug 27 2017 ...WIND ADVISORY IN EFFECT UNTIL 1 PM CDT MONDAY... The National Weather Service in Austin/San Antonio has issued a Wind Advisory, which is in effect until 1 PM CDT Monday. * TIMING...Through 1 PM Monday. * WINDS...Sustained winds of 25 to 35 mph with gusts to 40 mph. * IMPACTS...Driving high profile vehicles will be difficult through the day. Large tree limbs could fall and cause damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that winds of 26 to 39 mph are expected. Winds this strong can make driving difficult...especially for high profile vehicles. Use extra caution. && $$ TXZ191>194-206-209-281130- /O.EXT.KEWX.WI.Y.0007.000000T0000Z-170828T1800Z/ Hays-Travis-Bastrop-Lee-Comal-Fayette- Including the cities of San Marcos, Austin, Bastrop, Giddings, New Braunfels, and La Grange 1030 PM CDT Sun Aug 27 2017 ...WIND ADVISORY NOW IN EFFECT UNTIL 1 PM CDT MONDAY... * TIMING...Through 1 PM Monday. * WINDS...Sustained winds of 25 to 35 mph with gusts to 40 mph. * IMPACTS...Driving high profile vehicles will be difficult through the day. Large tree limbs could fall and cause damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that winds of 26 to 39 mph are expected. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$
560 WWUS74 KEWX 280910 NPWEWX URGENT - WEATHER MESSAGE National Weather Service Austin/San Antonio TX 410 AM CDT Mon Aug 28 2017 TXZ191>194-206>209-221-222-281015- /O.CAN.KEWX.WI.Y.0007.000000T0000Z-170828T1800Z/ Hays-Travis-Bastrop-Lee-Comal-Guadalupe-Caldwell-Fayette-Wilson- Karnes- Including the cities of San Marcos, Austin, Bastrop, Giddings, New Braunfels, Seguin, Lockhart, La Grange, Floresville, and Karnes City 410 AM CDT Mon Aug 28 2017 ...WIND ADVISORY IS CANCELLED... The National Weather Service in Austin/San Antonio has cancelled the Wind Advisory. Wind speeds have dropped below wind advisory criteria. $$
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 8:48 PM CDT | Flash Flood Warning | EWX | Bastrop, Caldwell, Fayette, Guadalupe, Hays, Lee | 8 hr |
| Aug 26, 10:07 PM CDT | Areal Flood Advisory | EWX | Hays, Travis | 7 hr |
| Aug 27, 1:31 AM CDT | Flash Flood Warning | EWX | Bastrop, Hays, Travis | 3 hr |
| Aug 27, 4:47 AM CDT | Flash Flood Warning | EWX | Bastrop, Caldwell, Fayette, Lee | 25 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.