Alert archive / Texas / Tornado Warnings in 2011

Tornado Warning 10, NWS Fort Worth, TX

April 23, 2011Cooke County, Grayson County, Texas

NWS Fort Worth, TX issued this tornado warning at Apr 23, 2011, 5:51 PM CDT for Cooke County, Grayson County, Texas. It was in force for 54 min. 9 reports 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 23, 2011, 5:51 PM CDT (22:51 UTC)
Expired
Apr 23, 2011, 6:45 PM CDT
In force
54 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon

Counties Cooke County, TX, Grayson County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 139 km from the middle of the area, began a volume at 22:53 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.

What was reported inside it

TimeReportWhereRemark
Apr 23, 5:52 PM CDTHAIL 0.88Lindsay, TXNICKEL HAIL IN LINDSAY
Apr 23, 5:54 PM CDTHAIL 2.75Lindsay, TXBASEBALL HAIL IN LINDSAY
Apr 23, 5:58 PM CDTHAIL 1Gainesville, TXQUARTER SIZE HAIL IN GAINESVILLE
Apr 23, 6:02 PM CDTHAIL 1.752 Nw Gainesville, TXGOLFBALL HAIL 2 MILES NW OF GAINESVILLE
Apr 23, 6:03 PM CDTHAIL 2.75Lindsay, TXBASEBALL HAIL IN LINDSAY
Apr 23, 6:05 PM CDTHAIL 2.54 Nne Lindsay, TXTENNIS BALL HAIL REPORTED 4 MILES NNE OF LINDSAY
Apr 23, 6:06 PM CDTHAIL 1.75Gainesville, TXGOLFBALL SIZE HAIL IN GAINESVILLE
Apr 23, 6:35 PM CDTHAIL 32 N Gainesville, TXORANGE SIZE HAIL 2 NORTH OF GAINESVILLE
Apr 23, 6:45 PM CDTHAIL 1.5Callisburg, TXPING PONG BALL SIZE HAIL IN CALLISBURG

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
Apr 23, 3:05 PM CDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 10.9 hours before the alert went out and 110 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, Fort Worth, TX at 12:00Z on 2011-04-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1649 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 12:00Z on 2011-04-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 250 square meters per square second.193958Sfc1 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
1649 J/kg
Mixed-layer CIN
-297 J/kg
Mixed-layer LCL
600 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
250 m²/s²
0-3 km storm-relative helicity
321 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

065 
WFUS54 KFWD 232251
TORFWD
TXC097-181-232345-
/O.NEW.KFWD.TO.W.0010.110423T2251Z-110423T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
551 PM CDT SAT APR 23 2011

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

* TORNADO WARNING FOR...
  COOKE COUNTY IN NORTH CENTRAL TEXAS...
  NORTHWESTERN GRAYSON COUNTY IN NORTH CENTRAL TEXAS...

* UNTIL 645 PM CDT

* AT 551 PM CDT...STORM SPOTTERS AND DOPPLER RADAR OBSERVED A
  DEVELOPING TORNADO 5 MILES SOUTHWEST OF LINDSAY...MOVING NORTHEAST
  AT 15 MPH.

* THE TORNADO WILL BE NEAR...
  LINDSAY AROUND 610 PM CDT...
  GAINESVILLE AROUND 625 PM CDT...
  CALLISBURG AROUND 645 PM CDT...

THIS WILL IMPACT I-35 BETWEEN MILE MARKERS 488 AND 503.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO AN INTERIOR BATHROOM...CLOSET...OR HALLWAY ON THE LOWEST
FLOOR OF YOUR BUILDING. COVER YOURSELF WITH BLANKETS...PILLOWS...OR A
MATTRESS FOR PROTECTION.

IN ADDITION TO TORNADOES...LARGE HAIL AND DAMAGING WINDS ARE LIKELY
WITH THIS STORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
SATURDAY EVENING FOR NORTHEASTERN TEXAS.

&&

LAT...LON 3386 9685 3388 9679 3386 9678 3361 9677
      3347 9732 3362 9744 3381 9721 3374 9717
      3373 9710 3380 9710 3382 9706 3385 9709
      3385 9702 3389 9699 3394 9700 3396 9691
TIME...MOT...LOC 2251Z 236DEG 13KT 3359 9729

$$
4 follow-up statements
216 
WWUS54 KFWD 232259
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
559 PM CDT SAT APR 23 2011

TXC097-181-232345-
/O.CON.KFWD.TO.W.0010.000000T0000Z-110423T2345Z/
GRAYSON TX-COOKE TX-
559 PM CDT SAT APR 23 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR
NORTHEASTERN COOKE AND NORTHWESTERN GRAYSON COUNTIES...

AT 559 PM CDT...DOPPLER RADAR INDICATED AND TRAINED WEATHER SPOTTERS 
REPORTED A DEVELOPING TORNADO.  THIS TORNADO WAS LOCATED NEAR 
LINDSAY...MOVING NORTHEAST AT 20 MPH.

THE TORNADO WILL BE NEAR...
  GAINESVILLE AROUND 605 PM CDT...
  CALLISBURG AROUND 630 PM CDT...
  WHITESBORO AND SADLER AROUND 645 PM CDT...

THIS WILL IMPACT I-35 BETWEEN MILE MARKERS 491 AND 503.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO TORNADOES...LARGE HAIL AND DAMAGING WINDS ARE LIKELY
WITH THIS STORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
SATURDAY EVENING FOR NORTHEASTERN TEXAS.

&&

LAT...LON 3386 9685 3388 9679 3386 9678 3361 9677
      3359 9686 3353 9713 3357 9727 3365 9735
      3381 9721 3374 9717 3373 9710 3380 9710
      3382 9706 3385 9709 3385 9702 3389 9699
      3394 9700 3396 9691
TIME...MOT...LOC 2259Z 247DEG 18KT 3362 9720

$$
720 
WWUS54 KFWD 232310
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
610 PM CDT SAT APR 23 2011

TXC097-181-232345-
/O.CON.KFWD.TO.W.0010.000000T0000Z-110423T2345Z/
GRAYSON TX-COOKE TX-
610 PM CDT SAT APR 23 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR
NORTHEASTERN COOKE AND NORTHWESTERN GRAYSON COUNTIES...

AT 610 PM CDT...STORM SPOTTERS AND DOPPLER RADAR OBSERVED A
DEVELOPING TORNADO.  THIS TORNADO WAS LOCATED NEAR GAINESVILLE...
MOVING NORTHEAST AT 20 MPH.

THE TORNADO WILL BE NEAR...
  CALLISBURG AROUND 635 PM CDT...
  WHITESBORO AND SADLER AROUND 645 PM CDT...

THIS WILL IMPACT I-35 BETWEEN MILE MARKERS 494 AND 503.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO TORNADOES...LARGE HAIL AND DAMAGING WINDS ARE LIKELY 
WITH THIS STORM. BASEBALL SIZED HAIL HAS BEEN REPORTED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
SATURDAY EVENING FOR NORTHEASTERN TEXAS.

&&

LAT...LON 3386 9685 3388 9679 3386 9678 3361 9677
      3359 9686 3357 9705 3361 9726 3366 9725
      3376 9718 3374 9717 3373 9710 3380 9710
      3382 9706 3385 9709 3385 9702 3389 9699
      3394 9700 3396 9691
TIME...MOT...LOC 2310Z 247DEG 18KT 3364 9714

$$
312 
WWUS54 KFWD 232321
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
621 PM CDT SAT APR 23 2011

TXC097-181-232345-
/O.CON.KFWD.TO.W.0010.000000T0000Z-110423T2345Z/
GRAYSON TX-COOKE TX-
621 PM CDT SAT APR 23 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR
NORTHEASTERN COOKE AND NORTHWESTERN GRAYSON COUNTIES...

AT 621 PM CDT...STORM SPOTTERS AND DOPPLER RADAR OBSERVED A
DEVELOPING TORNADO.  THIS TORNADO WAS LOCATED NEAR 
GAINESVILLE...MOVING NORTHEAST AT 15 MPH. HAIL UP TO BASEBALL SIZE 
HAS BEEN REPORTED WITH THIS STORM.

THE TORNADO WILL BE NEAR...
  CALLISBURG AROUND 640 PM CDT...
  WHITESBORO AROUND 645 PM CDT...

THIS WILL IMPACT I-35 BETWEEN MILE MARKERS 497 AND 503.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO TORNADOES...LARGE HAIL AND DAMAGING WINDS ARE LIKELY
WITH THIS STORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
SATURDAY EVENING FOR NORTHEASTERN TEXAS.

&&

LAT...LON 3386 9685 3388 9679 3386 9678 3361 9677
      3359 9686 3358 9706 3367 9724 3374 9717
      3373 9710 3380 9710 3382 9706 3385 9709
      3385 9702 3389 9699 3394 9700 3396 9691
TIME...MOT...LOC 2321Z 235DEG 15KT 3367 9712

$$
180 
WWUS54 KFWD 232331
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
631 PM CDT SAT APR 23 2011

TXC097-181-232345-
/O.CON.KFWD.TO.W.0010.000000T0000Z-110423T2345Z/
GRAYSON TX-COOKE TX-
631 PM CDT SAT APR 23 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR
NORTHEASTERN COOKE AND NORTHWESTERN GRAYSON COUNTIES...

AT 631 PM CDT...STORM SPOTTERS AND DOPPLER RADAR OBSERVED A
DEVELOPING TORNADO.  THIS TORNADO WAS LOCATED 4 MILES EAST OF 
GAINESVILLE...MOVING NORTHEAST AT 15 MPH. FUNNEL CLOUDS HAVE BEEN 
REPORTED BY TRAINED SPOTTERS. 

THE TORNADO WILL BE NEAR...
  CALLISBURG AND WHITESBORO AROUND 645 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO TORNADOES...LARGE HAIL AND DAMAGING WINDS ARE LIKELY
WITH THIS STORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
SATURDAY EVENING FOR NORTHEASTERN TEXAS.

&&

LAT...LON 3386 9685 3388 9679 3386 9678 3361 9677
      3359 9686 3358 9706 3364 9716 3373 9710
      3380 9710 3382 9706 3385 9709 3385 9702
      3389 9699 3394 9700 3396 9691
TIME...MOT...LOC 2331Z 235DEG 15KT 3366 9708

$$

The office that day

Everything else NWS Fort Worth, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 22, 7:50 PM CDTSevere Thunderstorm WarningFWDMontague55 min
Apr 22, 8:44 PM CDTSevere Thunderstorm WarningFWDMontague27 min
Apr 23, 10:52 AM CDTWind AdvisoryFWDBell, Bosque, Collin, Coryell, Dallas, Denton and 13 more4 hr
Apr 23, 4:38 PM CDTSevere Thunderstorm WarningFWDCooke, Montague67 min
Apr 23, 5:11 PM CDTSpecial Weather StatementFWDPalo Pinto34 min
Apr 23, 5:20 PM CDTSpecial Weather StatementFWDWise25 min
Apr 23, 5:28 PM CDTSevere Thunderstorm WarningFWDPalo Pinto62 min
Apr 23, 5:31 PM CDTSevere Thunderstorm WarningFWDJack, Montague, Wise59 min
Apr 23, 5:36 PM CDTSevere Thunderstorm WarningFWDEastland, Erath, Palo Pinto, Stephens54 min
Apr 23, 5:44 PM CDTSevere Thunderstorm WarningFWDCooke, Grayson61 min
Apr 23, 5:55 PM CDTSpecial Weather StatementFWDComanche35 min
Apr 23, 6:05 PM CDTSevere Thunderstorm WarningFWDComanche, Eastland, Erath55 min
Apr 23, 6:18 PM CDTSevere Thunderstorm WarningFWDStephens38 min
Apr 23, 6:24 PM CDTSevere Thunderstorm WarningFWDJack, Palo Pinto, Parker66 min
Apr 23, 6:28 PM CDTSevere Thunderstorm WarningFWDCooke, Denton, Montague, Wise62 min
Apr 23, 6:40 PM CDTTornado WarningFWDWise50 min
Apr 23, 6:41 PM CDTTornado WarningFWDCooke, Grayson49 min
Apr 23, 6:50 PM CDTSevere Thunderstorm WarningFWDJack, Wise40 min
Apr 23, 6:59 PM CDTSevere Thunderstorm WarningFWDComanche, Eastland, Erath, Hood61 min

Nearby

Tornado Warnings in Texas, 2011Every tornado warning in 2011Tornadoes in 2011

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.