Alert archive / Texas / Wind Chill Advisories in 2021
Wind Chill Advisory 1, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this wind chill advisory at Feb 14, 2021, 3:47 AM CST for 33 counties in Texas. It took effect at Feb 14, 2021, 9:00 PM CST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Feb 14, 2021, 3:47 AM CST (09:47 UTC)
- In effect from
- Feb 14, 2021, 9:00 PM CST
- Expired
- Feb 14, 2021, 1:01 PM CST
- In force
- Issued by
- NWS Austin/San Antonio, TX
All 33 counties
Atascosa County, TX, Bandera County, TX, Bastrop County, TX, Bexar County, TX, Blanco County, TX, Burnet County, TX, Caldwell County, TX, Comal County, TX, DeWitt County, TX, Dimmit County, TX, Edwards County, TX, Fayette County, TX, Frio County, TX, Gillespie County, TX, Gonzales County, TX, Guadalupe County, TX, Hays County, TX, Karnes County, TX, Kendall County, TX, Kerr County, TX, Kinney County, TX, Lavaca County, TX, Lee County, TX, Llano County, TX, Maverick County, TX, Medina County, TX, Real County, TX, Travis County, TX, Uvalde County, TX, Val Verde County, TX, Williamson County, TX, Wilson County, TX, Zavala County, TX
The radar
The Austin/San Antonio radar (KEWX), 57 km from the middle of the area, began a volume at 09:50 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, 9.8 hours before the alert went out and 218 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
- 560 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -13 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
665 WWUS44 KEWX 140947 WSWEWX URGENT - WINTER WEATHER MESSAGE National Weather Service Austin/San Antonio TX 347 AM CST Sun Feb 14 2021 ...MAJOR WINTER STORM TO IMPACT THE REGION THROUGH MONDAY MORNING... .Bitterly cold air and wintry precipitation in the form of freezing rain, sleet, and snow will impact the region today through Monday morning. The system could lead to major stress on the region's infrastructure as well as cripple travel. The coldest temperatures since 1989 will impact the region. Wind chill indices could fall to between 15 below zero to near zero late tonight. TXZ171>173-183>194-202>209-218>225-142100- /O.NEW.KEWX.WC.Y.0001.210215T0300Z-210215T1800Z/ /O.CON.KEWX.WS.W.0003.000000T0000Z-210215T1800Z/ Llano-Burnet-Williamson-Val Verde-Edwards-Real-Kerr-Bandera- Gillespie-Kendall-Blanco-Hays-Travis-Bastrop-Lee-Kinney-Uvalde- Medina-Bexar-Comal-Guadalupe-Caldwell-Fayette-Zavala-Frio- Atascosa-Wilson-Karnes-Gonzales-De Witt-Lavaca- Including the cities of Llano, Burnet, Georgetown, Del Rio, Rocksprings, Leakey, Kerrville, Bandera, Fredericksburg, Boerne, Blanco, San Marcos, Austin, Bastrop, Giddings, Brackettville, Uvalde, Hondo, San Antonio, New Braunfels, Seguin, Lockhart, La Grange, Crystal City, Pearsall, Pleasanton, Floresville, Karnes City, Gonzales, Cuero, and Hallettsville 347 AM CST Sun Feb 14 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST MONDAY... ...WIND CHILL ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO NOON CST MONDAY... * WHAT...For the Winter Storm Warning, heavy mixed precipitation. Additional snow accumulations of 1 to 3 inches with isolated amounts near 6 inches and ice accumulations up to around one tenth of an inch. For the Wind Chill Advisory, very cold wind chills expected. Wind chills as low as 15 below zero. * WHERE...Portions of south central Texas. * WHEN...For the Winter Storm Warning, until noon CST Monday. For the Wind Chill Advisory, from 9 PM this evening to noon CST Monday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning commute. The cold wind chills could result in hypothermia if precautions are not taken. * ADDITIONAL DETAILS...Bitterly cold air will combine with gusty winds to produce wind wind chill values of -15 to around zero degrees Monday morning. These values can lead to hypothermia for anyone stranded within the icy roads expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Use caution while venturing outside. Wear appropriate clothing, a hat, and gloves. The latest road conditions for the state can be obtained at drivetexas.org. && $$ TXZ217-228-142100- /O.NEW.KEWX.WC.Y.0001.210215T0300Z-210215T1800Z/ /O.CON.KEWX.WW.Y.0003.210214T2100Z-210215T1800Z/ Maverick-Dimmit- Including the cities of Eagle Pass and Carrizo Springs 347 AM CST Sun Feb 14 2021 ...WINTER WEATHER ADVISORY IS IN EFFECT FROM 3 PM THIS AFTERNOON THROUGH NOON CST MONDAY... ...WIND CHILL ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO NOON CST MONDAY... * WHAT...For the Winter Weather Advisory, mixed precipitation expected. Total snow accumulations of up to one inch and ice accumulations of a light glaze. For the Wind Chill Advisory, very cold wind chills expected. Wind chills as low as 5 below zero. * WHERE...Maverick and Dimmit Counties. * WHEN...For the Winter Weather Advisory, from 3 PM this afternoon through noon CST Monday. For the Wind Chill Advisory, from 9 PM this evening to noon CST Monday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. The cold wind chills could result in hypothermia if precautions are not taken. * ADDITIONAL DETAILS...Bitterly cold air will combine with gusty winds to produce wind wind chill values near zero degrees Monday morning. These values can lead to hypothermia for anyone stranded within the icy roads expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Use caution while venturing outside. Wear appropriate clothing, a hat, and gloves. The latest road conditions for the state can be obtained at drivetexas.org. && $$
2 follow-up statements
212 WWUS44 KEWX 141648 WSWEWX URGENT - WINTER WEATHER MESSAGE National Weather Service Austin/San Antonio TX 1048 AM CST Sun Feb 14 2021 ...MAJOR WINTER STORM TO IMPACT THE REGION THROUGH MONDAY MORNING... .Bitterly cold air and wintry precipitation in the form of freezing rain, sleet, and snow will impact the region today through Monday morning. The system could lead to major stress on the region's infrastructure as well as cripple travel. The coldest temperatures since 1989 will impact the region. Wind chill indices could fall to between 15 below zero to near zero late tonight. TXZ217-228-150200- /O.UPG.KEWX.WW.Y.0003.210214T2100Z-210215T1800Z/ /O.EXA.KEWX.WS.W.0003.000000T0000Z-210215T1800Z/ /O.CON.KEWX.WC.Y.0001.210215T0300Z-210215T1800Z/ Maverick-Dimmit- Including the cities of Eagle Pass and Carrizo Springs 1048 AM CST Sun Feb 14 2021 ...WINTER STORM WARNING IN EFFECT UNTIL NOON CST MONDAY... ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO NOON CST MONDAY... * WHAT...For the Winter Storm Warning, heavy snow. Additional snow accumulations of up to one-two inches. For the Wind Chill Advisory, very cold wind chills expected. Wind chills as low as 5 below zero. * WHERE...Maverick and Dimmit Counties. * WHEN...For the Winter Storm Warning, until noon CST Monday. For the Wind Chill Advisory, from 9 PM this evening to noon CST Monday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. The cold wind chills could result in hypothermia if precautions are not taken. * ADDITIONAL DETAILS...Bitterly cold air will combine with gusty winds to produce wind wind chill values near zero degrees Monday morning. These values can lead to hypothermia for anyone stranded within the icy roads expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. The latest road conditions for the state can be obtained at drivetexas.org. && $$ TXZ171>173-183>194-202>209-218>225-150200- /O.CON.KEWX.WS.W.0003.000000T0000Z-210215T1800Z/ /O.CON.KEWX.WC.Y.0001.210215T0300Z-210215T1800Z/ Llano-Burnet-Williamson-Val Verde-Edwards-Real-Kerr-Bandera- Gillespie-Kendall-Blanco-Hays-Travis-Bastrop-Lee-Kinney-Uvalde- Medina-Bexar-Comal-Guadalupe-Caldwell-Fayette-Zavala-Frio- Atascosa-Wilson-Karnes-Gonzales-De Witt-Lavaca- Including the cities of Llano, Burnet, Georgetown, Del Rio, Rocksprings, Leakey, Kerrville, Bandera, Fredericksburg, Boerne, Blanco, San Marcos, Austin, Bastrop, Giddings, Brackettville, Uvalde, Hondo, San Antonio, New Braunfels, Seguin, Lockhart, La Grange, Crystal City, Pearsall, Pleasanton, Floresville, Karnes City, Gonzales, Cuero, and Hallettsville 1048 AM CST Sun Feb 14 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST MONDAY... ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO NOON CST MONDAY... * WHAT...For the Winter Storm Warning, heavy mixed precipitation. Additional snow accumulations of 1 to 3 inches with isolated amounts near 6 inches and ice accumulations up to around one tenth of an inch. For the Wind Chill Advisory, very cold wind chills expected. Wind chills as low as 15 below zero. * WHERE...Portions of south central Texas. * WHEN...For the Winter Storm Warning, until noon CST Monday. For the Wind Chill Advisory, from 9 PM this evening to noon CST Monday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning commute. The cold wind chills could result in hypothermia if precautions are not taken. * ADDITIONAL DETAILS...Bitterly cold air will combine with gusty winds to produce wind wind chill values of 15 -to around zero degrees Monday morning. These values can lead to hypothermia for anyone stranded within the icy roads expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. The latest road conditions for the state can be obtained at drivetexas.org. && $$
395 WWUS44 KEWX 141901 WSWEWX URGENT - WINTER WEATHER MESSAGE National Weather Service Austin/San Antonio TX 101 PM CST Sun Feb 14 2021 ...MAJOR WINTER STORM TO IMPACT THE REGION THROUGH MONDAY MORNING... .Bitterly cold air and wintry precipitation in the form of freezing rain, sleet, and snow will impact the region today through Monday morning. The system could lead to major stress on the region's infrastructure as well as cripple travel. The coldest temperatures since 1989 will impact the region. Wind chill indices could fall to between 15 below zero to near zero late tonight. TXZ171>173-183>194-202>209-217>225-228-150600- /O.UPG.KEWX.WC.Y.0001.210215T0300Z-210215T1800Z/ /O.NEW.KEWX.WC.W.0001.210215T0000Z-210215T1800Z/ /O.CON.KEWX.WS.W.0003.000000T0000Z-210215T1800Z/ Llano-Burnet-Williamson-Val Verde-Edwards-Real-Kerr-Bandera- Gillespie-Kendall-Blanco-Hays-Travis-Bastrop-Lee-Kinney-Uvalde- Medina-Bexar-Comal-Guadalupe-Caldwell-Fayette-Maverick-Zavala- Frio-Atascosa-Wilson-Karnes-Gonzales-De Witt-Lavaca-Dimmit- Including the cities of Llano, Burnet, Georgetown, Del Rio, Rocksprings, Leakey, Kerrville, Bandera, Fredericksburg, Boerne, Blanco, San Marcos, Austin, Bastrop, Giddings, Brackettville, Uvalde, Hondo, San Antonio, New Braunfels, Seguin, Lockhart, La Grange, Eagle Pass, Crystal City, Pearsall, Pleasanton, Floresville, Karnes City, Gonzales, Cuero, Hallettsville, and Carrizo Springs 101 PM CST Sun Feb 14 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST MONDAY... ...WIND CHILL WARNING IN EFFECT FROM 6 PM THIS EVENING TO NOON CST MONDAY... * WHAT...For the Winter Storm Warning, heavy mixed precipitation. Additional snow accumulations of 1 to 4 inches with isolated totals up to 6 inches and ice accumulations of around one tenth of an inch. The heaviest snow accumulations are expected north of a Rocksprings to San Antonio to Schulenburg line. Winds gusting as high as 35 mph. For the Wind Chill Warning, dangerously cold wind chills expected. Wind chills as low as 15 below zero. * WHERE...South Central Texas. * WHEN...For the Winter Storm Warning, until noon CST Monday. For the Wind Chill Warning, from 6 PM this evening to noon CST Monday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning commute. The cold wind chills could result in hypothermia if precautions are not taken. * ADDITIONAL DETAILS...Bitterly cold air will combine with gusty winds to produce wind wind chill values near zero degrees Monday morning. These values can lead to hypothermia for anyone stranded within the icy roads expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Avoid outside activities if possible. When outside, make sure you wear appropriate clothing, a hat, and gloves. The latest road conditions for the state can be obtained at drivetexas.org. && $$
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 14, 1:01 PM CST | Wind Chill Warning | EWX | Atascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 27 more | 23 hr |
Nearby
Wind Chill Advisories in Texas, 2021Every wind chill advisory in 2021
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.