Alert archive / Texas / Wind Advisories in 2020
Wind Advisory 4, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this wind advisory at Sep 27, 2020, 12:27 PM CDT for 21 counties in Texas. It took effect at Sep 28, 2020, 1:00 AM CDT. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Sep 27, 2020, 12:27 PM CDT (17:27 UTC)
- In effect from
- Sep 28, 2020, 1:00 AM CDT
- Expired
- Sep 28, 2020, 1:00 PM CDT
- In force
- 12 hr
- Issued by
- NWS Austin/San Antonio, TX
All 21 counties
Bandera County, TX, Bastrop County, TX, Bexar County, TX, Blanco County, TX, Burnet County, TX, Caldwell County, TX, Comal County, TX, Edwards County, TX, Gillespie County, TX, Guadalupe County, TX, Hays County, TX, Kendall County, TX, Kerr County, TX, Kinney County, TX, Llano County, TX, Medina County, TX, Real County, TX, Travis County, TX, Uvalde County, TX, Val Verde County, TX, Williamson County, TX
The radar
The Austin/San Antonio radar (KEWX), 82 km from the middle of the area, began a volume at 17:24 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
Del Rio, TX (KDRT), launched 12:00Z, 5.5 hours before the alert went out and 207 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
- 1118 J/kg
- Mixed-layer CIN
- -476 J/kg
- Mixed-layer LCL
- 985 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 133 m²/s²
- 0-3 km storm-relative helicity
- 271 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
622 WWUS74 KEWX 271727 NPWEWX URGENT - WEATHER MESSAGE National Weather Service Austin/San Antonio TX 1227 PM CDT Sun Sep 27 2020 TXZ171>173-183>193-202>208-281100- /O.NEW.KEWX.WI.Y.0004.200928T0600Z-200928T1800Z/ Llano-Burnet-Williamson-Val Verde-Edwards-Real-Kerr-Bandera- Gillespie-Kendall-Blanco-Hays-Travis-Bastrop-Kinney-Uvalde-Medina- Bexar-Comal-Guadalupe-Caldwell- Including the cities of Llano, Burnet, Georgetown, Del Rio, Rocksprings, Leakey, Kerrville, Bandera, Fredericksburg, Boerne, Blanco, San Marcos, Austin, Bastrop, Brackettville, Uvalde, Hondo, San Antonio, New Braunfels, Seguin, and Lockhart 1227 PM CDT Sun Sep 27 2020 ...WIND ADVISORY IN EFFECT FROM 1 AM TO 1 PM CDT MONDAY... * WHAT...North winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Portions of south central Texas. * WHEN...From 1 AM to 1 PM CDT Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
3 follow-up statements
258 WWUS74 KEWX 280559 NPWEWX URGENT - WEATHER MESSAGE National Weather Service Austin/San Antonio TX 1259 AM CDT Mon Sep 28 2020 TXZ171>173-183>193-202>208-281800- /O.CON.KEWX.WI.Y.0004.200928T0600Z-200928T1800Z/ Llano-Burnet-Williamson-Val Verde-Edwards-Real-Kerr-Bandera- Gillespie-Kendall-Blanco-Hays-Travis-Bastrop-Kinney-Uvalde-Medina- Bexar-Comal-Guadalupe-Caldwell- Including the cities of Llano, Burnet, Georgetown, Del Rio, Rocksprings, Leakey, Kerrville, Bandera, Fredericksburg, Boerne, Blanco, San Marcos, Austin, Bastrop, Brackettville, Uvalde, Hondo, San Antonio, New Braunfels, Seguin, and Lockhart 1259 AM CDT Mon Sep 28 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... * WHAT...North winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Portions of south central Texas. * WHEN...From 1 AM to 1 PM CDT Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
852 WWUS74 KEWX 281238 AAA NPWEWX URGENT - WEATHER MESSAGE...UPDATED National Weather Service Austin/San Antonio TX 738 AM CDT Mon Sep 28 2020 TXZ171>173-183>193-202>208-281800- /O.CON.KEWX.WI.Y.0004.000000T0000Z-200928T1800Z/ Llano-Burnet-Williamson-Val Verde-Edwards-Real-Kerr-Bandera- Gillespie-Kendall-Blanco-Hays-Travis-Bastrop-Kinney-Uvalde-Medina- Bexar-Comal-Guadalupe-Caldwell- Including the cities of Llano, Burnet, Georgetown, Del Rio, Rocksprings, Leakey, Kerrville, Bandera, Fredericksburg, Boerne, Blanco, San Marcos, Austin, Bastrop, Brackettville, Uvalde, Hondo, San Antonio, New Braunfels, Seguin, and Lockhart 738 AM CDT Mon Sep 28 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... * WHAT...North winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Portions of south central Texas. * WHEN...Through 1 PM CDT this afternoon. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
109 WWUS74 KEWX 281755 NPWEWX URGENT - WEATHER MESSAGE National Weather Service Austin/San Antonio TX 1255 PM CDT Mon Sep 28 2020 TXZ171>173-183>193-202>208-281900- /O.EXP.KEWX.WI.Y.0004.000000T0000Z-200928T1800Z/ Llano-Burnet-Williamson-Val Verde-Edwards-Real-Kerr-Bandera- Gillespie-Kendall-Blanco-Hays-Travis-Bastrop-Kinney-Uvalde-Medina- Bexar-Comal-Guadalupe-Caldwell- Including the cities of Llano, Burnet, Georgetown, Del Rio, Rocksprings, Leakey, Kerrville, Bandera, Fredericksburg, Boerne, Blanco, San Marcos, Austin, Bastrop, Brackettville, Uvalde, Hondo, San Antonio, New Braunfels, Seguin, and Lockhart 1255 PM CDT Mon Sep 28 2020 ...WIND ADVISORY WILL EXPIRE AT 1 PM CDT THIS AFTERNOON... With only a couple of isolated spots reaching criteria this afternoon, the Wind Advisory has been replaced by an SPS through 7pm. Winds of 15-25mph gusting as high as 40 mph for another couple of hours will diminish quickly late this afternoon. $$
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.