Alert archive / Texas / Tornado Warnings in 2007

Tornado Warning 13, NWS Corpus Christi, TX

April 30, 2007Duval County, Texas

NWS Corpus Christi, TX issued this tornado warning at Apr 30, 2007, 6:58 PM CDT for Duval County, Texas. It was in force for 62 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: Apr 30, 2007, 6:58 PM CDT (23:58 UTC)
Expired: Apr 30, 2007, 8:00 PM CDT
In force: 62 min
Issued by: NWS Corpus Christi, TX
Area: Counties, with a storm outline in the text

County Duval County, TX

The radar

The Corpus Christi radar (KCRP), 107 km from the middle of the area, began a volume at 00:03 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.

What was reported inside it

Time	Report	Where	Remark
Apr 30, 7:20 PM CDT	HAIL 1.25	Freer, TX

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.

Issued	Product	Office	Lasted
Apr 30, 3:01 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 12.0 hours before the alert went out and 124 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2122 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 471 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: 75 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS54 KCRP 302359
TORCRP
TXC131-010100-
/O.NEW.KCRP.TO.W.0013.070430T2358Z-070501T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
658 PM CDT MON APR 30 2007

THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A

* TORNADO WARNING FOR...
  DUVAL COUNTY IN SOUTH TEXAS

* UNTIL 800 PM CDT

* AT 655 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 7 MILES       
  SOUTHWEST OF FREER...MOVING SOUTH AT 10 MPH. THIS IS A DANGEROUS
  STORM  

* THE TORNADO WILL BE NEAR...
  RURAL WESTERN DUVAL COUNTY AT 710 PM CDT

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
TENNIS BALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT MONDAY EVENING
FOR CENTRAL TEXAS.

LAT...LON 2795 9849 2791 9881 2749 9878 2754 9842

$$

TMT

1 follow-up statement

000 
WWUS54 KCRP 010032
SVSCRP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
728 PM CDT MON APR 30 2007

TXC131-010100-
/O.CON.KCRP.TO.W.0013.000000T0000Z-070501T0100Z/
DUVAL-
728 PM CDT MON APR 30 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR DUVAL 
COUNTY...

AT 724 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS 
TORNADO WAS LOCATED 12 MILES SOUTHWEST OF FREER...OR ABOUT 23 MILES 
NORTHWEST OF BENAVIDES...MOVING SOUTH AT 10 MPH.

THE TORNADO WILL BE NEAR...
  RURAL WESTERN DUVAL COUNTY AT 740 PM CDT

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
TENNIS BALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

AT 700 PM...PUBLIC REPORTED TENNIS BALL SIZE HAIL IN FREER.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT MONDAY EVENING
FOR CENTRAL TEXAS.

LAT...LON 2795 9849 2791 9881 2749 9878 2754 9842

$$

TMT

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 30, 1:46 PM CDT	Severe Thunderstorm Warning	CRP	Live Oak	14 min
Apr 30, 4:27 PM CDT	Severe Thunderstorm Warning	CRP	McMullen	63 min
Apr 30, 4:46 PM CDT	Tornado Warning	CRP	McMullen	29 min
Apr 30, 4:53 PM CDT	Flash Flood Warning	CRP	McMullen	97 min
Apr 30, 5:13 PM CDT	Tornado Warning	CRP	Duval, McMullen	47 min
Apr 30, 5:33 PM CDT	Flash Flood Warning	CRP	Duval	87 min
Apr 30, 5:58 PM CDT	Tornado Warning	CRP	Duval	62 min

Nearby

Tornado Warnings in Texas, 2007 Every tornado warning in 2007 Tornadoes in 2007

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.