Alert archive / Texas / Wind Chill Warnings in 2021

Wind Chill Warning 1, NWS Austin/San Antonio, TX

February 14, 202133 counties in Texas

NWS Austin/San Antonio, TX issued this wind chill warning at Feb 14, 2021, 1:01 PM CST for 33 counties in Texas. It took effect at Feb 14, 2021, 6:00 PM CST. It was in force for 18 hr. 60 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Feb 14, 2021, 1:01 PM CST (19:01 UTC)
In effect from
Feb 14, 2021, 6:00 PM CST
Expired
Feb 15, 2021, 12:00 PM CST
In force
18 hr
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 18:59 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.

What was reported inside it

TimeReportWhereRemark
Feb 14, 6:24 PM CSTSNOW 0.13 Nnw Austin, TX0.1 INCHES OF SNOW AT AUSTIN CAMP MABRY.
Feb 14, 6:36 PM CSTFREEZING RAIN 0.135 Nw Geronimo, TX1/8 INCH OF ICE AT THE NWS OFFICE IN NEW BRAUNFELS.
Feb 14, 8:17 PM CSTSNOW 2Burnet, TXCO-OP OBSERVER IN BURNET IS REPORTING TWO INCHES OF SNOW SO FAR.
Feb 14, 8:46 PM CSTHEAVY SNOW 0.53 Nw Elm Creek, TXA SPOTTER REPORTED NEAR WHITE OUT CONDITIONS ON HWY 277 BETWEEN EAGLE PASS AND RADAR BASE.
Feb 14, 8:55 PM CSTSNOW 0.51 Ese Eagle Pass, TXPICTURE ON TWITTER OF 0.5 IN. OF SNOW IN EAGLE PASS.
Feb 14, 8:58 PM CSTSNOW 1Brackettville, TX
Feb 14, 10:12 PM CSTFREEZING RAIN 0.1Cuero, TXCORRECTS PREVIOUS FREEZING RAIN REPORT FROM CUERO. ALL ROADS IN CUERO HAVE ICE.
Feb 14, 10:18 PM CSTSNOW 1Sabinal, TX
Feb 14, 10:20 PM CSTFREEZING RAIN 0.12 Ese Helotes, TXAMATEUR RADIO REPORTS 0.10 INCHES OF ICE NEAR LOOP 1604 AND BANDERA RD. IN HELOTES.
Feb 14, 10:24 PM CSTFREEZING RAIN 0.11 Nne Del Rio, TXMULTIPLE ACCIDENTS INCLUDING ONE ROLL OVER DUE TO ICY ROADS IN DEL RIO. NO INJURIES REPORTED.
Feb 14, 10:58 PM CSTSNOW 3Sabinal, TX
Feb 14, 11:24 PM CSTSNOW 0.13 Ssw Kyle, TXTHUNDERSNOW HEARD ALONG WITH MULTIPLE REPORTS ON SOCIAL MEDIA OF THUNDERSNOW AROUND THE KYLE AREA.
Feb 14, 11:30 PM CSTSNOW 1.52 Nw Helotes, TX1.5 INCHES FELL WITHIN 75 MINUTES.
Feb 15, 12:24 AM CSTSNOW 1.37 Nne New Braunfels, TX
Feb 15, 12:27 AM CSTSNOW 1.5West Lake Hills, TX
Feb 15, 12:27 AM CSTSNOW 5Sabinal, TX
Feb 15, 12:31 AM CSTSNOW 23 Ne Shavano Park, TXMULTIPLE PUBLIC REPORTS ON SOCIAL MEDIA FROM NORTH SAN ANTONIO OF 2 INCHES OF SNOW.
Feb 15, 12:54 AM CSTSNOW 32 Sw Shavano Park, TX
Feb 15, 12:57 AM CSTSNOW 4Manor, TX
Feb 15, 1:00 AM CSTSNOW 6Hondo, TX
Feb 15, 1:03 AM CSTSNOW 2.55 Nw Geronimo, TXMEASURED AT WFO EWX.
Feb 15, 1:11 AM CSTSNOW 2.83 N Hollywood Park, TX2.75 INCHES IN THE STONE OAK AREA.
Feb 15, 1:13 AM CSTSNOW 31 Ssw Round Rock, TX
Feb 15, 1:14 AM CSTSNOW 2.5Mansfield Dam, TX
Feb 15, 1:16 AM CSTSNOW 2.5Schertz, TX
Feb 15, 1:24 AM CSTSNOW 2.54 W Fredericksburg, TX
Feb 15, 1:33 AM CSTSNOW 52 Nnw Helotes, TX
Feb 15, 1:39 AM CSTSNOW 38 Wsw San Marcos, TX
Feb 15, 2:04 AM CSTSNOW 54 Ne Austin, TX
Feb 15, 2:06 AM CSTSNOW 4.43 Ssw Jollyville, TX
Feb 15, 2:20 AM CSTSNOW 55 N Austin, TX
Feb 15, 2:28 AM CSTSNOW 43 N Hollywood Park, TX
Feb 15, 2:30 AM CSTSNOW 4.52 Wnw Castle Hills, TX
Feb 15, 2:40 AM CSTSNOW 4.53 Sse Bulverde, TX
Feb 15, 3:13 AM CSTSNOW 4.55 Nne Hill Country Stat, TX
Feb 15, 3:31 AM CSTSNOW 4.57 Nne New Braunfels, TXSTORM TOTAL 4.5 INCHES.
Feb 15, 3:35 AM CSTSNOW 55 Nw Geronimo, TXSTORM TOTAL AT WFO EWX IS 5 INCHES.
Feb 15, 5:00 AM CSTSNOW 7Round Rock, TX7 INCHES OF SNOW MEASURED ON TABLE IN ROUND ROCK.
Feb 15, 6:00 AM CSTSNOW 1.73 Nne Meyersville, TX
Feb 15, 6:00 AM CSTSNOW 33 N Kingsland, TX
Feb 15, 6:00 AM CSTSNOW 41 N China Grove, TX
Feb 15, 6:30 AM CSTSNOW 1Dilley, TX
Feb 15, 7:00 AM CSTSNOW 12 Nnw Hallettsville, TX
Feb 15, 7:00 AM CSTSNOW 1.28 N Hallettsville, TX
Feb 15, 7:00 AM CSTSNOW 1.32 Ssw Carrizo Springs, TX
Feb 15, 7:00 AM CSTSNOW 24 E Circle D-Kc Estate, TX
Feb 15, 7:00 AM CSTSNOW 2.5Comfort, TX
Feb 15, 7:00 AM CSTSNOW 31 Nne Geronimo, TX
Feb 15, 7:00 AM CSTSNOW 31 Ssw Seguin, TX
Feb 15, 7:00 AM CSTSNOW 33 Ene Calaveras Lake, TX
Feb 15, 7:00 AM CSTSNOW 33 Ene Utopia, TX
Feb 15, 7:00 AM CSTSNOW 3Medina, TX
Feb 15, 7:00 AM CSTSNOW 3.3Burnet, TX
Feb 15, 7:00 AM CSTSNOW 3.4Ingram, TX
Feb 15, 7:00 AM CSTSNOW 3.52 N Cheapside, TX
Feb 15, 7:00 AM CSTSNOW 3.52 Ne Bertram, TX
Feb 15, 7:00 AM CSTSNOW 3.76 Nnw Bergheim, TX
Feb 15, 7:00 AM CSTSNOW 41 Wnw Mcdade, TX
Feb 15, 7:00 AM CSTSNOW 43 S Tarpley, TX
Feb 15, 7:00 AM CSTSNOW 43 W Pipe Creek, TX

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 7.0 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.

Skew-T log-pSkew-T log-p diagram, Del Rio, TX at 12:00Z on 2021-02-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Del Rio, TX at 12:00Z on 2021-02-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 87 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
426 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
87 m²/s²
0-3 km storm-relative helicity
233 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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.

&&

$$
2 follow-up statements
437 
WWUS44 KEWX 150854
WSWEWX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Austin/San Antonio TX
254 AM CST Mon Feb 15 2021

...MAJOR WINTER STORM CONTINUES TO IMPACT THE REGION THIS 
MORNING...

.Bitterly cold air and snow will impact the region this morning,
and a coat of freezing rain and sleet accumulations from overnight 
will remain trapped beneath the layer of snow that continues to 
fall over the Coastal Prairies. 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 
early this morning.

TXZ171>173-183>194-202>209-217>225-228-151800-
/O.CON.KEWX.WC.W.0001.000000T0000Z-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
254 AM CST Mon Feb 15 2021

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...

* WHAT...For the Winter Storm Warning, snow accumulations of 3 to
  5 inches with isolated totals up to 6 inches have occurred
  across much of South Central Texas, and ice accumulations of one
  to two tenths of an inch have occurred. Additional 
  accumulations of mainly snow will continue over Coastal Plains 
  in the early morning hours with precipitation chances expected 
  to end after sunrise. Winds continue to gust up to near 30 mph. 
  For the Wind Chill Warning, dangerously cold wind chills make 
  the temperature feel as cold as 15 degrees below zero.

* WHERE...South Central Texas.

* WHEN...For the Winter Storm Warning, until noon CST Today. For
  the Wind Chill Warning, through noon CST Today.

* IMPACTS...Nearly all of South Central Texas has received
  measurable amounts of ice and snow, so with the frigid
  temperatures in place, widespread icing issues can be expected
  on area roadways through this morning. The cold wind chills 
  could result in hypothermia if precautions are not taken.

* ADDITIONAL DETAILS...Bitterly cold air and wind chills that can
  lead to hypothermia for anyone stranded outdoors or on icy roads.

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.

&&

$$
390 
WWUS44 KEWX 151821
WSWEWX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Austin/San Antonio TX
1221 PM CST Mon Feb 15 2021

...Very Cold Temperatures and Wind Chills as well as ice and snow
covered roads continued across South Central Texas...

.All winter type precipitation has ended. However, roads will
continue to be ice and snow covered for the remainder of the day
into at least Tuesday. Winds have been slowly decreasing and
temperatures have been slowly rising. As a result, wind chills
have been slowly rising, as well. However, there may be a few 
spots with wind chills this afternoon into tonight. 

TXZ171>173-183>194-202>209-217>225-228-151930-
/O.EXP.KEWX.WC.W.0001.000000T0000Z-210215T1800Z/
/O.EXP.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
1221 PM CST Mon Feb 15 2021

...WIND CHILL WARNING HAS EXPIRED...
...WINTER STORM WARNING HAS EXPIRED...

All winter type precipitation has ended. However, roads will
continue to be ice and snow covered for the remainder of the day
into at least Tuesday. Winds have been slowly decreasing and
temperatures have been slowly rising. As a result, wind chills
have been slowly rising, as well. However, there may be a few
isolated spots with wind chills this afternoon into tonight. 

$$

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 14, 3:47 AM CSTWind Chill AdvisoryEWXAtascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 27 more9 hr

Nearby

Wind Chill Warnings in Texas, 2021Every wind chill warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.