Alert archive / Texas / Wind Advisories in 2021
Wind Advisory 3, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this wind advisory at Mar 17, 2021, 2:42 AM CDT for 18 counties in Texas. It took effect at Mar 17, 2021, 10:00 AM CDT. It was in force for 11 hr.
The area
The counties it named.
The facts
- Issued
- Mar 17, 2021, 2:42 AM CDT (07:42 UTC)
- In effect from
- Mar 17, 2021, 10:00 AM CDT
- Expired
- Mar 17, 2021, 9:00 PM CDT
- In force
- 11 hr
- Issued by
- NWS Austin/San Antonio, TX
Counties Bandera County, TX, Blanco County, TX, Burnet County, TX, Dimmit County, TX, Edwards County, TX, Frio County, TX, Gillespie 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, Williamson County, TX, Zavala County, TX
The radar
The Laughlin AFB radar (KDFX), 102 km from the middle of the area, began a volume at 07:46 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 00:00Z, 7.7 hours before the alert went out and 148 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
- 1637 J/kg
- Mixed-layer CIN
- -62 J/kg
- Mixed-layer LCL
- 1645 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- -20 m²/s²
- 0-3 km storm-relative helicity
- 176 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 4.6
The text
As transmitted.
720 WWUS74 KEWX 170742 NPWEWX URGENT - WEATHER MESSAGE National Weather Service Austin/San Antonio TX 242 AM CDT Wed Mar 17 2021 TXZ171>173-183>190-202-203-217-218-228-172000- /O.NEW.KEWX.WI.Y.0003.210317T1500Z-210318T0000Z/ Llano-Burnet-Williamson-Val Verde-Edwards-Real-Kerr-Bandera- Gillespie-Kendall-Blanco-Kinney-Uvalde-Maverick-Zavala-Dimmit- Including the cities of Llano, Burnet, Georgetown, Del Rio, Rocksprings, Leakey, Kerrville, Bandera, Fredericksburg, Boerne, Blanco, Brackettville, Uvalde, Eagle Pass, Crystal City, and Carrizo Springs 242 AM CDT Wed Mar 17 2021 ...WIND ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM CDT THIS EVENING... * WHAT...Northwest winds 20 to 30 mph with gusts up to 40 mph expected. * WHERE...Portions of the Hill Country, Edwards Plateau, and Rio Grande Plains across South Central Texas. * WHEN...From 10 AM this morning to 7 PM CDT this evening. * 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. && $$
3 follow-up statements
486 WWUS74 KEWX 171630 NPWEWX URGENT - WEATHER MESSAGE National Weather Service Austin/San Antonio TX 1130 AM CDT Wed Mar 17 2021 TXZ204-219-180000- /O.EXA.KEWX.WI.Y.0003.000000T0000Z-210318T0000Z/ Medina-Frio- Including the cities of Hondo and Pearsall 1130 AM CDT Wed Mar 17 2021 ...WIND ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...Northwest winds 20 to 30 mph with gusts up to 40 mph. * WHERE...Medina and Frio Counties. * WHEN...From 10 AM this morning to 7 PM CDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ TXZ171>173-183>190-202-203-217-218-228-180000- /O.CON.KEWX.WI.Y.0003.000000T0000Z-210318T0000Z/ Llano-Burnet-Williamson-Val Verde-Edwards-Real-Kerr-Bandera- Gillespie-Kendall-Blanco-Kinney-Uvalde-Maverick-Zavala-Dimmit- Including the cities of Llano, Burnet, Georgetown, Del Rio, Rocksprings, Leakey, Kerrville, Bandera, Fredericksburg, Boerne, Blanco, Brackettville, Uvalde, Eagle Pass, Crystal City, and Carrizo Springs 1130 AM CDT Wed Mar 17 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...Northwest winds 20 to 30 mph with gusts up to 40 mph expected. * WHERE...Portions of the Hill Country, Edwards Plateau, and Rio Grande Plains across South Central Texas. * WHEN...From 10 AM this morning to 7 PM CDT this evening. * 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. && $$
062 WWUS74 KEWX 172347 NPWEWX URGENT - WEATHER MESSAGE National Weather Service Austin/San Antonio TX 647 PM CDT Wed Mar 17 2021 TXZ171>173-183>190-202>204-217>219-228-180200- /O.EXT.KEWX.WI.Y.0003.000000T0000Z-210318T0200Z/ Llano-Burnet-Williamson-Val Verde-Edwards-Real-Kerr-Bandera- Gillespie-Kendall-Blanco-Kinney-Uvalde-Medina-Maverick-Zavala- Frio-Dimmit- Including the cities of Llano, Burnet, Georgetown, Del Rio, Rocksprings, Leakey, Kerrville, Bandera, Fredericksburg, Boerne, Blanco, Brackettville, Uvalde, Hondo, Eagle Pass, Crystal City, Pearsall, and Carrizo Springs 647 PM CDT Wed Mar 17 2021 ...WIND ADVISORY NOW IN EFFECT UNTIL 9 PM CDT THIS EVENING... * WHAT...Northwest winds 20 to 30 mph with gusts up to 40 mph expected. * WHERE...Portions of the Hill Country, Edwards Plateau, and Rio Grande Plains across South Central Texas. * WHEN...Until 9 PM CDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
394 WWUS74 KEWX 180208 NPWEWX URGENT - WEATHER MESSAGE National Weather Service Austin/San Antonio TX 908 PM CDT Wed Mar 17 2021 TXZ171>173-183>190-202>204-217>219-228-180315- /O.EXP.KEWX.WI.Y.0003.000000T0000Z-210318T0200Z/ Llano-Burnet-Williamson-Val Verde-Edwards-Real-Kerr-Bandera- Gillespie-Kendall-Blanco-Kinney-Uvalde-Medina-Maverick-Zavala- Frio-Dimmit- Including the cities of Llano, Burnet, Georgetown, Del Rio, Rocksprings, Leakey, Kerrville, Bandera, Fredericksburg, Boerne, Blanco, Brackettville, Uvalde, Hondo, Eagle Pass, Crystal City, Pearsall, and Carrizo Springs 908 PM CDT Wed Mar 17 2021 ...WIND ADVISORY HAS EXPIRED... Winds across the area have dropped below advisory level and we have allowed the Wind Advisory to expire. Winds will continue to be 10 to 20 mph with some higher gusts through the evening. $$
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 3:19 AM CDT | Special Weather Statement | EWX | Gillespie, Llano | 56 min |
| Mar 17, 4:05 AM CDT | Special Weather Statement | EWX | Blanco, Burnet, Gillespie, Kendall, Williamson | 55 min |
| Mar 17, 4:49 AM CDT | Special Weather Statement | EWX | Blanco, Comal, Hays, Kendall, Travis, Williamson | 56 min |
| Mar 17, 5:39 AM CDT | Special Weather Statement | EWX | Bastrop, Lee, Travis | 66 min |
| Mar 17, 6:04 AM CDT | Special Weather Statement | EWX | Burnet | 56 min |
| Mar 17, 6:35 AM CDT | Special Weather Statement | EWX | Bastrop, Fayette, Lee | 55 min |
| Mar 17, 8:22 AM CDT | Special Weather Statement | EWX | Fayette | 23 min |
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.