Alert archive / Texas / Wind Chill Advisories in 2021

Wind Chill Advisory 2, NWS Corpus Christi, TX

February 13, 202111 counties in Texas

NWS Corpus Christi, TX issued this wind chill advisory at Feb 13, 2021, 3:40 AM CST for 11 counties in Texas. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Feb 13, 2021, 3:40 AM CST (09:40 UTC)
Expired
Feb 13, 2021, 12:00 PM CST
In force
8 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 09:42 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 00:00Z, 9.7 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 00:00Z on 2021-02-13Temperature 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, Corpus Christi, TX at 00:00Z on 2021-02-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 square meters per square second.19395878Sfc1 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
558 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
152 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

572 
WWUS44 KCRP 130940
WSWCRP

URGENT - WINTER WEATHER MESSAGE
National Weather Service Corpus Christi TX
340 AM CST Sat Feb 13 2021

...WINTER STORM WATCH IN EFFECT FOR ALL OF SOUTH TEXAS SUNDAY
EVENING THROUGH MONDAY AFTERNOON... ...WIND CHILL WATCH IN EFFECT
FOR ALL OF SOUTH TEXAS SUNDAY EVENING THROUGH TUESDAY MORNING...

.A strong weather system will move into the area this weekend.
Chances for freezing precipitation increase especially Sunday
night and Monday. The primary precipitation type will be freezing
rain as very cold, shallow air moves into the region overnight.
Rain changes to freezing rain from west to east as temperatures
drop to freezing and continue to drop. Ice accumulation up to a
tenth of an inch are possible. Sleet or a few snow flakes could
mix in with freezing rain at times north of a line from Refugio
to Encinal. Precipitation should decrease late Monday morning
into the afternoon. Wind chill values will drop as low 0 degrees
north to 15 south.

TXZ231>234-241>247-342>344-346-347-131745-
/O.NEW.KCRP.WC.Y.0002.210213T0940Z-210213T1800Z/
/O.CON.KCRP.WC.A.0001.210215T0000Z-210216T1800Z/
/O.CON.KCRP.WS.A.0001.210215T0000Z-210216T0000Z/
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-Coastal Refugio-Coastal Calhoun-
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
340 AM CST Sat Feb 13 2021

...WIND CHILL ADVISORY IN EFFECT UNTIL NOON CST TODAY...
...WIND CHILL WATCH REMAINS IN EFFECT FROM SUNDAY EVENING THROUGH
TUESDAY MORNING...
...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY EVENING
THROUGH MONDAY AFTERNOON...

* WHAT...For the Wind Chill Advisory, very cold wind chills. 
  Wind chills as low as 20 degrees. For the Winter Storm Watch, 
  heavy mixed precipitation possible. Total snow accumulations 
  of up to one inch and ice accumulations of up to one tenth of 
  an inch possible. Winds could gust as high as 35 mph. For the 
  Wind Chill Watch, dangerously cold wind chills possible. Wind 
  chills as low as zero.

* WHERE...Portions of south Texas.

* WHEN...For the Wind Chill Advisory, until noon CST today. For 
  the Winter Storm Watch, from Sunday evening through Monday 
  afternoon. For the Wind Chill Watch, from Sunday evening 
  through Tuesday morning.

* IMPACTS...Plan on slippery road conditions. 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...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

Monitor the latest forecasts for updates on this situation. 

&&

$$

TXZ229-230-239-240-345-442-443-447-131745-
/O.CON.KCRP.WC.A.0001.210215T0000Z-210216T1800Z/
/O.CON.KCRP.WS.A.0001.210215T0000Z-210216T0000Z/
La Salle-McMullen-Webb-Duval-Aransas Islands-Kleberg Islands-
Nueces Islands-Calhoun Islands-
Including the cities of Cotulla, Calliham, Cross, Loma Alta, 
Tilden, Aguilares, Columbia Bridge, Laredo, Orvil, Freer, 
Benavides, and San Diego
340 AM CST Sat Feb 13 2021

...WIND CHILL WATCH REMAINS IN EFFECT FROM SUNDAY EVENING THROUGH
TUESDAY MORNING...
...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY EVENING
THROUGH MONDAY AFTERNOON...

* WHAT...For the Winter Storm Watch, heavy mixed precipitation 
  possible. Total ice accumulations of up to one tenth of an 
  inch possible. Winds could gust as high as 35 mph. For the 
  Wind Chill Watch, dangerously cold wind chills possible. Wind 
  chills as low as zero.

* WHERE...Portions of south Texas.

* WHEN...For the Winter Storm Watch, from Sunday evening through 
  Monday afternoon. For the Wind Chill Watch, from Sunday 
  evening through Tuesday morning.

* IMPACTS...Plan on slippery road conditions. 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...

Monitor the latest forecasts for updates on this situation. 

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 13, 3:48 PM CSTFreeze WarningCRPBee, Calhoun, Duval, Goliad, Jim Wells, Kleberg and 8 more18 hr
Feb 13, 3:54 PM CSTWinter Storm WarningCRPAransas, Bee, Calhoun, Duval, Goliad, Jim Wells and 9 more44 hr
Feb 13, 3:54 PM CSTWinter Weather AdvisoryCRPDuval, La Salle, Webb19 hr
Feb 13, 4:01 PM CSTGale WatchCRP12 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.