Alert archive / Texas / Tornado Warnings in 2017

Tornado Warning 4, NWS Corpus Christi, TX

February 14, 2017Aransas County, Calhoun County, Texas

NWS Corpus Christi, TX issued this tornado warning at Feb 14, 2017, 8:12 AM CST for Aransas County, Calhoun County, Texas. It was in force for 18 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Feb 14, 2017, 8:12 AM CST (14:12 UTC)
Expired
Feb 14, 2017, 8:30 AM CST
In force
18 min
Issued by
NWS Corpus Christi, TX
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Aransas County, TX, Calhoun County, TX

The radar

The Corpus Christi radar (KCRP), 123 km from the middle of the area, began a volume at 14:13 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, 8:17 AM CSTMARINE TSTM WIND 4912 E Lamar, TXMATAGORDA ISLAND RAWS MEASURED A GUST TO 43 KNOTS.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Feb 14, 5:09 AM CSTTornado WatchSPC6 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 2.2 hours before the alert went out and 114 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 2017-02-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1811 joules per kilogram.LCLLFCEL10008507005003002001001 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 2017-02-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 209 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
1811 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
495 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
209 m²/s²
0-3 km storm-relative helicity
308 m²/s²
Significant tornado parameter
2.2
Supercell composite
16.1

Open this sounding in Storm Lab

The text

As transmitted.

448 
WFUS54 KCRP 141412
TORCRP
TXC007-057-141430-
/O.NEW.KCRP.TO.W.0004.170214T1412Z-170214T1430Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Corpus Christi TX
812 AM CST TUE FEB 14 2017

The National Weather Service in Corpus Christi has issued a

* Tornado Warning for...
  Central Calhoun County in south Texas...
  Southeastern Aransas County in south central Texas...

* Until 830 AM CST

* At 811 AM CST, a line of strong thunderstorms capable of producing 
  brief tornadoes was located along a line extending from near 
  Seadrift to near Port Aransas, moving east at 40 mph.

  HAZARD...Tornado. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* These dangerous storms will be near...
  Seadrift around 815 AM CST. 
  Indianola and Magnolia Beach around 825 AM CST. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 2855 9652 2835 9634 2827 9638 2801 9679
      2780 9696 2780 9708 2859 9662 2857 9660
      2859 9657 2871 9655 2872 9641 2864 9642
      2863 9639 2865 9636 2867 9639 2868 9633
      2864 9632
TIME...MOT...LOC 1411Z 261DEG 36KT 2844 9665 2787 9699 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

PZ
2 follow-up statements
490 
WWUS54 KCRP 141422
SVSCRP

Severe Weather Statement
National Weather Service Corpus Christi TX
822 AM CST TUE FEB 14 2017

TXC007-141430-
/O.CAN.KCRP.TO.W.0004.000000T0000Z-170214T1430Z/
Aransas TX-
822 AM CST TUE FEB 14 2017

...THE TORNADO WARNING FOR SOUTHEASTERN ARANSAS COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A tornado watch remains in effect until 100 PM CST for south Texas.

LAT...LON 2855 9652 2854 9652 2835 9634 2828 9638
      2804 9675 2805 9679 2811 9680 2857 9656
      2857 9654 2856 9653 2865 9651 2870 9647
      2872 9641 2864 9642 2863 9637 2866 9636
      2867 9639 2868 9634 2864 9632
TIME...MOT...LOC 1420Z 261DEG 36KT 2845 9658 2788 9692 

$$

TXC057-141430-
/O.CON.KCRP.TO.W.0004.000000T0000Z-170214T1430Z/
Calhoun TX-
822 AM CST TUE FEB 14 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 AM CST FOR CENTRAL
CALHOUN COUNTY...

At 820 AM CST, a line of strong thunderstorms capable of producing 
brief tornadoes was located along a line extending from 7 miles 
southwest of Indianola to 9 miles east of Port Aransas, moving east 
at 40 mph.

HAZARD...Tornado. 

SOURCE...Radar indicated rotation. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

These dangerous storms will be near...
  Magnolia Beach around 825 AM CST. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 2855 9652 2854 9652 2835 9634 2828 9638
      2804 9675 2805 9679 2811 9680 2857 9656
      2857 9654 2856 9653 2865 9651 2870 9647
      2872 9641 2864 9642 2863 9637 2866 9636
      2867 9639 2868 9634 2864 9632
TIME...MOT...LOC 1420Z 261DEG 36KT 2845 9658 2788 9692 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

PZ
385 
WWUS54 KCRP 141432
SVSCRP

Severe Weather Statement
National Weather Service Corpus Christi TX
832 AM CST TUE FEB 14 2017

TXC057-141440-
/O.EXP.KCRP.TO.W.0004.000000T0000Z-170214T1430Z/
Calhoun TX-
832 AM CST TUE FEB 14 2017

...THE TORNADO WARNING FOR CENTRAL CALHOUN COUNTY HAS EXPIRED...
    
The leading edge of the line of storms which prompted the warning 
has moved out of the area. Therefore the warning has been allowed to 
expire.

A tornado watch remains in effect until 100 PM CST for south Texas.

LAT...LON 2855 9652 2854 9652 2835 9634 2828 9638
      2804 9675 2805 9679 2811 9680 2857 9656
      2857 9654 2856 9653 2865 9651 2870 9647
      2872 9641 2864 9642 2863 9637 2866 9636
      2867 9639 2868 9634 2864 9632
TIME...MOT...LOC 1430Z 261DEG 36KT 2846 9648 2789 9682 

$$

PZ

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 14, 6:15 AM CSTSpecial Weather StatementCRPBee, Goliad, Refugio45 min
Feb 14, 6:24 AM CSTTornado WarningCRPBee, Goliad, Refugio, San Patricio21 min
Feb 14, 6:33 AM CSTSevere Thunderstorm WarningCRPVictoria27 min
Feb 14, 6:48 AM CSTSpecial Marine WarningCRP117 min
Feb 14, 7:00 AM CSTTornado WarningCRPGoliad, Refugio, Victoria30 min
Feb 14, 7:29 AM CSTSpecial Weather StatementCRPAransas, Calhoun, Nueces, Refugio61 min
Feb 14, 7:48 AM CSTTornado WarningCRPAransas, Calhoun, Refugio27 min
Feb 14, 8:42 AM CSTSpecial Marine WarningCRP93 min

Nearby

Tornado Warnings in Texas, 2017Every tornado warning in 2017Tornadoes in 2017

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.