Alert archive / Texas / Tornado Warnings in 2007

Tornado Warning 21, NWS San Angelo, TX

April 13, 2007Haskell County, Texas

NWS San Angelo, TX issued this tornado warning at Apr 13, 2007, 1:51 PM CDT for Haskell County, Texas. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 13, 2007, 1:51 PM CDT (18:51 UTC)
Expired: Apr 13, 2007, 2:15 PM CDT
In force: 24 min
Issued by: NWS San Angelo, TX
Area: Counties, with a storm outline in the text

County Haskell County, TX

The radar

The Dyess AFB radar (KDYX), 102 km from the middle of the area, began a volume at 18:53 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 watch it was issued in

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

Issued	Product	Office	Lasted
Apr 13, 12:27 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Fort Sill, OK (KFSI), launched 12:00Z, 6.9 hours before the alert went out and 189 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1491 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 447 m²/s²
0-3 km storm-relative helicity: 635 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KSJT 131853
TORSJT
TXC207-131915-
/O.NEW.KSJT.TO.W.0021.070413T1851Z-070413T1915Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
151 PM CDT FRI APR 13 2007

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN HASKELL COUNTY IN WEST CENTRAL TEXAS...

* UNTIL 215 PM CDT

* AT 149 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
A   SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 2 MILES   
SOUTHWEST OF WEINERT...OR ABOUT 12 MILES NORTH OF HASKELL...MOVING   
NORTHEAST AT 50 MPH.  TRAINED SPOTTERS FROM HASKELL INDICATING 
STRONG ROTATION WITH THIS STORM. 

* THE TORNADO WILL IMPACT THE TOWN OF WEINERT 
  
TAKE COVER NOW IF YOU LIVE IN WEINERT. 

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. IF NO
BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE
BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. IF IN
MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL
SHELTER.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM CDT FRIDAY EVENING FOR
WEST CENTRAL TEXAS.

LAT...LON 3339 9990 3326 9977 3331 9952 3340 9948
      3339 9985

$$

2 follow-up statements

000 
WWUS54 KSJT 131902
SVSSJT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
200 PM CDT FRI APR 13 2007

TXC207-131915-
/O.CON.KSJT.TO.W.0021.000000T0000Z-070413T1915Z/
HASKELL TX-
200 PM CDT FRI APR 13 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 215 PM CDT FOR
NORTHEASTERN HASKELL COUNTY...

AT 157 PM CDT...TRAINED WEATHER SPOTTERS FROM WEINERT REPORTED 
STRONG ROTATION.  A TORNADO COULD FORM AT ANY TIME.  THIS 
TORNADO WAS LOCATED NEAR WEINERT...OR ABOUT 13 MILES NORTH OF 
HASKELL...MOVING NORTHEAST AT 45 MPH.

THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF
NORTHEASTERN HASKELL COUNTY.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING AT 
LEAST GOLFBALL SIZE HAIL OR LARGER AND DESTRUCTIVE STRAIGHT LINE 
WINDS.

SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR 
HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER 
YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

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

LAT...LON 3339 9990 3326 9977 3331 9952 3340 9948
      3339 9962 3339 9985

$$

000 
WWUS54 KSJT 131919
SVSSJT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
217 PM CDT FRI APR 13 2007

TXC207-131927-
/O.EXP.KSJT.TO.W.0021.000000T0000Z-070413T1915Z/
HASKELL TX-
217 PM CDT FRI APR 13 2007

...THE TORNADO WARNING FOR HASKELL COUNTY EXPIRED AT 215 PM CDT...

THIS TORNADIC STORM MOVED NORTHEAST AND OUT OF HASKELL COUNTY.

LAT...LON 3339 9990 3326 9977 3331 9952 3340 9948
      3339 9962 3339 9985

$$

The office that day

Everything else NWS San Angelo, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 13, 3:16 AM CDT	Lake Wind Advisory	SJT	Coke, Concho, Nolan, Runnels, Taylor, Tom Green	17 hr
Apr 13, 3:18 AM CDT	Red Flag Warning	SJT	Coke, Crockett, Fisher, Irion, Nolan, Sterling and 1 more	17 hr
Apr 13, 1:13 PM CDT	Severe Thunderstorm Warning	SJT	Haskell	32 min
Apr 13, 1:28 PM CDT	Tornado Warning	SJT	Haskell	32 min
Apr 13, 3:33 PM CDT	Severe Thunderstorm Warning	SJT	Callahan	17 min
Apr 13, 5:26 PM CDT	Severe Thunderstorm Warning	SJT	Brown	34 min
Apr 13, 5:36 PM CDT	Severe Thunderstorm Warning	SJT	Brown, San Saba	39 min
Apr 13, 6:35 PM CDT	Severe Thunderstorm Warning	SJT	San Saba	25 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.