Alert archive / Texas / Wind Advisories in 2021
Wind Advisory 4, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this wind advisory at Mar 31, 2021, 3:06 AM CDT for 19 counties in Texas. It took effect at Mar 31, 2021, 10:00 AM CDT. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Mar 31, 2021, 3:06 AM CDT (08:06 UTC)
- In effect from
- Mar 31, 2021, 10:00 AM CDT
- Expired
- Mar 31, 2021, 6:00 PM CDT
- In force
- 8 hr
- Issued by
- NWS Austin/San Antonio, TX
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, Llano County, TX, Medina County, TX, Real County, TX, Travis County, TX, Uvalde County, TX, Williamson County, TX
The radar
The Austin/San Antonio radar (KEWX), 66 km from the middle of the area, began a volume at 08:06 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, 8.1 hours before the alert went out and 227 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
- 1818 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- -152 m²/s²
- 0-3 km storm-relative helicity
- -91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
734 WWUS74 KEWX 310806 NPWEWX URGENT - WEATHER MESSAGE National Weather Service Austin/San Antonio TX 306 AM CDT Wed Mar 31 2021 TXZ171>173-184>193-203>208-312300- /O.NEW.KEWX.WI.Y.0004.210331T1500Z-210331T2300Z/ Llano-Burnet-Williamson-Edwards-Real-Kerr-Bandera-Gillespie- Kendall-Blanco-Hays-Travis-Bastrop-Uvalde-Medina-Bexar-Comal- Guadalupe-Caldwell- Including the cities of Llano, Burnet, Georgetown, Rocksprings, Leakey, Kerrville, Bandera, Fredericksburg, Boerne, Blanco, San Marcos, Austin, Bastrop, Uvalde, Hondo, San Antonio, New Braunfels, Seguin, and Lockhart 306 AM CDT Wed Mar 31 2021 ...WIND ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 6 PM CDT THIS EVENING... * WHAT...North winds 20 to 30 mph with gusts up to 40 mph expected. * WHERE...Portions of south central Texas. * WHEN...From 10 AM this morning to 6 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. && $$
1 follow-up statement
240 WWUS74 KEWX 312256 NPWEWX URGENT - WEATHER MESSAGE National Weather Service Austin/San Antonio TX 556 PM CDT Wed Mar 31 2021 TXZ171>173-184>193-203>208-010000- /O.EXP.KEWX.WI.Y.0004.000000T0000Z-210331T2300Z/ Llano-Burnet-Williamson-Edwards-Real-Kerr-Bandera-Gillespie- Kendall-Blanco-Hays-Travis-Bastrop-Uvalde-Medina-Bexar-Comal- Guadalupe-Caldwell- Including the cities of Llano, Burnet, Georgetown, Rocksprings, Leakey, Kerrville, Bandera, Fredericksburg, Boerne, Blanco, San Marcos, Austin, Bastrop, Uvalde, Hondo, San Antonio, New Braunfels, Seguin, and Lockhart 556 PM CDT Wed Mar 31 2021 ...WIND ADVISORY WILL EXPIRE AT 6 PM CDT THIS EVENING... Winds will remain elevated for another hour or two but have fallen to 10-23 mph sustained at this time, below advisory criteria. Some isolated gusts to 30 mph will continue along and south of I-10/US-57 overnight, dropping off before sunrise Thursday. $$
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.