Alert archive / Texas / Wind Chill Warnings in 2021

Wind Chill Warning 2, NWS Corpus Christi, TX

February 18, 202111 counties in Texas

NWS Corpus Christi, TX issued this wind chill warning at Feb 18, 2021, 4:00 PM CST for 11 counties in Texas. It took effect at Feb 19, 2021, 3:00 AM CST. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Feb 18, 2021, 4:00 PM CST (22:00 UTC)
In effect from
Feb 19, 2021, 3:00 AM CST
Expired
Feb 19, 2021, 9:00 AM CST
In force
6 hr
Issued by
NWS Corpus Christi, TX

Counties Aransas County, TX, Bee County, TX, Calhoun County, TX, Goliad County, TX, Jim Wells County, TX, Kleberg County, TX, Live Oak County, TX, Nueces County, TX, Refugio County, TX, San Patricio County, TX, Victoria County, TX

The radar

The Corpus Christi radar (KCRP), 44 km from the middle of the area, began a volume at 22:03 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

Corpus Christi, TX (KCRP), launched 12:00Z, 10.0 hours before the alert went out and 50 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, Corpus Christi, TX at 12:00Z on 2021-02-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 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, Corpus Christi, TX at 12:00Z on 2021-02-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 93 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
4 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
398 m above ground
0-6 km bulk shear
76 kt
0-1 km storm-relative helicity
93 m²/s²
0-3 km storm-relative helicity
249 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

643 
WWUS44 KCRP 182200
WSWCRP

URGENT - WINTER WEATHER MESSAGE
National Weather Service Corpus Christi TX
400 PM CST Thu Feb 18 2021

...WINTRY MIX EARLY THIS MORNING CHANGING TO MOSTLY SNOW BY MID
MORNING...

.Light snow will remain possible across La Salle and McMullen
Counties as the upper level disturbance moves out of the area.
Remaining counties within the warning could still see a light 
wintry mix. In addition, wind chills are expected to range 
between 15 to 25 degrees from Jim Wells and Bee through the 
Victoria Crossroads including the barrier islands until tomorrow 
morning.

TXZ231>234-190600-
/O.NEW.KCRP.WC.W.0002.210219T0900Z-210219T1300Z/
/O.CON.KCRP.WW.Y.0003.000000T0000Z-210219T0000Z/
Live Oak-Bee-Goliad-Victoria-
Including the cities of George West, Three Rivers, Beeville, 
Goliad, and Victoria
400 PM CST Thu Feb 18 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...
...WIND CHILL WARNING IN EFFECT FROM 3 AM TO 7 AM CST FRIDAY...

* WHAT...For the Wind Chill Warning, dangerously cold wind chills
  expected. Wind chills as low as 10 above zero. For the Winter
  Weather Advisory, a light wintry mix possible elsewhere.

* WHERE...Live Oak, Bee, Goliad and Victoria.

* WHEN...For the Wind Chill Warning, from 3 AM to 7 AM CST 
  Friday. For the Winter Weather Advisory, until 6 PM CST this 
  evening.

* IMPACTS...The hazardous conditions could impact the morning or
  evening commute. The dangerously cold wind chills could result
  in hypothermia or frostbite if precautions are not taken.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves. 

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

TXZ241>247-342>347-442-443-447-190600-
/O.NEW.KCRP.WC.W.0002.210219T0900Z-210219T1300Z/
Jim Wells-Inland Kleberg-Inland Nueces-Inland San Patricio-
Coastal Aransas-Inland Refugio-Inland Calhoun-Coastal Kleberg-
Coastal Nueces-Coastal San Patricio-Aransas Islands-
Coastal Refugio-Coastal Calhoun-Kleberg Islands-Nueces Islands-
Calhoun Islands-
Including the cities of Alice, Orange Grove, Kingsville, 
Loyola Beach, Ricardo, Riviera, Robstown, Tuloso, Bishop, Sinton,
Mathis, Taft, Odem, Rockport, Fulton, Refugio, McFaddin, 
Woodsboro, Kamay, Corpus Christi, Flour Bluff, Portland, 
Ingleside, Bayside, Austwell, Magnolia Beach, and Port Lavaca
400 PM CST Thu Feb 18 2021

...WIND CHILL WARNING IN EFFECT FROM 3 AM TO 7 AM CST FRIDAY...

* WHAT...Dangerously cold wind chills expected. Wind chills as 
  low as 10 above zero.

* WHERE...Portions of south Texas.

* WHEN...From 3 AM to 7 AM CST Friday.

* IMPACTS...The dangerously cold wind chills could result in
  hypothermia or frostbite if precautions are not taken.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves. 

&&

$$

TXZ229-230-190000-
/O.CON.KCRP.WS.W.0003.000000T0000Z-210219T0000Z/
La Salle-McMullen-
Including the cities of Cotulla, Calliham, Cross, Loma Alta, 
and Tilden
400 PM CST Thu Feb 18 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...Light snow. Additional snow accumulations of up to one 
  inch.

* WHERE...La Salle and McMullen.

* WHEN...Until 6 PM CST this evening.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the evening commute. The cold wind 
  chills as low as 25 degrees could result in hypothermia if 
  precautions are not taken.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

JCP
1 follow-up statement
760 
WWUS44 KCRP 190233
WSWCRP

URGENT - WINTER WEATHER MESSAGE
National Weather Service Corpus Christi TX
833 PM CST Thu Feb 18 2021

...WIND CHILL WARNING REMAINS IN EFFECT 3AM THROUGH 7AM...

.With decreasing clouds tonight, cold temperatures and moderate
winds east are expected to result in wind chill values between 15
and 25 degrees from Jim Wells and Live Oak counties eastward 
through the coastal counties and Victoria Crossroads including 
the barrier islands until tomorrow morning.

TXZ231>234-241>247-342>347-442-443-447-191500-
/O.EXT.KCRP.WC.W.0002.210219T0900Z-210219T1500Z/
Live Oak-Bee-Goliad-Victoria-Jim Wells-Inland Kleberg-
Inland Nueces-Inland San Patricio-Coastal Aransas-Inland Refugio-
Inland Calhoun-Coastal Kleberg-Coastal Nueces-
Coastal San Patricio-Aransas Islands-Coastal Refugio-
Coastal Calhoun-Kleberg Islands-Nueces Islands-Calhoun Islands-
Including the cities of George West, Three Rivers, Beeville, 
Goliad, Victoria, Alice, Orange Grove, Kingsville, Loyola Beach, 
Ricardo, Riviera, Robstown, Tuloso, Bishop, Sinton, Mathis, Taft,
Odem, Rockport, Fulton, Refugio, McFaddin, Woodsboro, Kamay, 
Corpus Christi, Flour Bluff, Portland, Ingleside, Bayside, 
Austwell, Magnolia Beach, and Port Lavaca
833 PM CST Thu Feb 18 2021

...WIND CHILL WARNING NOW IN EFFECT FROM 3 AM TO 9 AM CST
FRIDAY...

* WHAT...Dangerously cold wind chills expected. Wind chills as 
  low as 10 above zero.

* WHERE...Portions of south Texas.

* WHEN...From 3 AM to 9 AM CST Friday.

* IMPACTS...The dangerously cold wind chills could result in 
  hypothermia or frostbite if precautions are not taken.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves. 

&&

$$

The office that day

Everything else NWS Corpus Christi, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 17, 7:35 PM CSTWind Chill AdvisoryCRPAransas, Bee, Calhoun, Duval, Goliad, Jim Wells and 9 more16 hr
Feb 18, 10:49 AM CSTWinter Storm WarningCRPLa Salle, McMullen7 hr
Feb 18, 3:52 PM CSTFreeze WarningCRPAransas, Bee, Calhoun, Duval, Goliad, Jim Wells and 9 more19 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.