Alert archive / Texas / Tornado Warnings in 2011

Tornado Warning 102, NWS Fort Worth, TX

May 24, 2011Dallas County, Texas

NWS Fort Worth, TX issued this tornado warning at May 24, 2011, 9:40 PM CDT for Dallas County, Texas. It was in force for 33 min. 2 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: May 24, 2011, 9:40 PM CDT (02:40 UTC)
Expired: May 24, 2011, 10:13 PM CDT
In force: 33 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon

County Dallas County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 52 km from the middle of the area, began a volume at 02:43 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
May 24, 9:48 PM CDT	TORNADO	6 Sw Balch Springs, TX	I-20 AND TRINITY RIVER
May 24, 10:13 PM CDT	TSTM WND DMG	2 Ne Wilmer, TX	LARGE TREE APPROX 2-4 FT WIDE LYING IN ROAD AT BELTLINE

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
May 24, 12:47 PM CDT	Tornado Watch PDS	SPC	11 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 2.7 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-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: 2867 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 1457 m above ground
0-6 km bulk shear: 69 kt
0-1 km storm-relative helicity: 357 m²/s²
0-3 km storm-relative helicity: 602 m²/s²
Significant tornado parameter: 6.2
Supercell composite: 44.3

Open this sounding in Storm Lab

The text

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

017 
WFUS54 KFWD 250240
TORFWD
TXC113-250330-
/O.NEW.KFWD.TO.W.0102.110525T0240Z-110525T0330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
940 PM CDT TUE MAY 24 2011

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

* TORNADO WARNING FOR...
  DALLAS COUNTY IN NORTH CENTRAL TEXAS...

* UNTIL 1030 PM CDT

* AT 939 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  DEVELOPING TORNADO 4 MILES NORTH OF DUNCANVILLE...MOVING EAST AT 40
  MPH.  THIS DANGEROUS STORM WAS ALSO CAPABLE OF PRODUCING LARGER 
THAN BASEBALL SIZED HAIL.  IF YOU ARE IN THE PATH OF THIS 
STORM...TAKE COVER IMMEDIATELY!

* THE TORNADO WILL BE NEAR...
  DALLAS...GLENN HEIGHTS AND UNIVERSITY PARK AROUND 945 PM CDT...
  LANCASTER AROUND 950 PM CDT...
  HUTCHINS AND WILMER AROUND 955 PM CDT...
  BALCH SPRINGS AND MESQUITE AROUND 1000 PM CDT...
  SEAGOVILLE AND SUNNYVALE AROUND 1005 PM CDT...

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.

EVACUATE MOBILE HOMES FOR A STORM SHELTER OR PERMANENT BUILDING. IF
NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH AND COVER
YOUR HEAD.

&&

LAT...LON 3288 9652 3255 9652 3254 9697 3255 9703
      3275 9704 3288 9681
TIME...MOT...LOC 0239Z 280DEG 36KT 3269 9687

$$


CAVANAUGH

2 follow-up statements

981 
WWUS54 KFWD 250256
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
956 PM CDT TUE MAY 24 2011

TXC113-250330-
/O.CON.KFWD.TO.W.0102.000000T0000Z-110525T0330Z/
DALLAS TX-
956 PM CDT TUE MAY 24 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR
SOUTHEASTERN DALLAS COUNTY...

AT 955 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A 
DEVELOPING TORNADO  NEAR HUTCHINS...MOVING EAST AT 40 MPH.  THIS 
STORM IS CAPABLE OF PRODUCING LARGE DAMAGING HAIL UP TO BASEBALL 
SIZE.  

THE TORNADO WILL BE NEAR...
  HUTCHINS AROUND 1000 PM CDT...
  WILMER AROUND 1005 PM CDT...

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.

&&

LAT...LON 3256 9652 3255 9653 3254 9671 3255 9687
      3275 9683 3283 9671 3284 9652
TIME...MOT...LOC 0255Z 282DEG 34KT 3262 9670

$$


DUNN

129 
WWUS54 KFWD 250313
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
1013 PM CDT TUE MAY 24 2011

TXC113-250323-
/O.CAN.KFWD.TO.W.0102.000000T0000Z-110525T0330Z/
DALLAS TX-
1013 PM CDT TUE MAY 24 2011

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

AT 1013 PM CDT THE SEVERE THUNDERSTORM THAT PROMPTED THE TORNADO
WARNING HAS EXITED THE AREA...THUS THE WARNING WAS CANCELLED.

LAT...LON 3256 9652 3255 9653 3254 9671 3255 9687
      3275 9683 3283 9671 3284 9652
TIME...MOT...LOC 0313Z 282DEG 34KT 3258 9650

$$


DUNN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 24, 7:07 PM CDT	Tornado Warning	FWD	Parker	38 min
May 24, 7:26 PM CDT	Tornado Warning	FWD	Denton, Wise	49 min
May 24, 7:28 PM CDT	Tornado Warning	FWD	Parker, Tarrant	47 min
May 24, 7:33 PM CDT	Tornado Warning	FWD	Cooke, Grayson	42 min
May 24, 7:44 PM CDT	Severe Thunderstorm Warning	FWD	Tarrant	46 min
May 24, 7:56 PM CDT	Tornado Warning	FWD	Dallas, Tarrant	49 min
May 24, 8:04 PM CDT	Tornado Warning	FWD	Collin, Denton	41 min
May 24, 8:08 PM CDT	Tornado Warning	FWD	Grayson	52 min
May 24, 8:26 PM CDT	Severe Thunderstorm Warning	FWD	Parker, Tarrant	64 min
May 24, 8:29 PM CDT	Tornado Warning	FWD	Fannin, Grayson	46 min
May 24, 8:35 PM CDT	Tornado Warning	FWD	Collin	17 min
May 24, 8:41 PM CDT	Tornado Warning	FWD	Dallas, Kaufman, Rockwall	64 min
May 24, 8:44 PM CDT	Tornado Warning	FWD	Tarrant	46 min
May 24, 8:48 PM CDT	Areal Flood Advisory	FWD	Dallas	3 hr
May 24, 8:49 PM CDT	Severe Thunderstorm Warning	FWD	Cooke, Grayson	56 min
May 24, 9:09 PM CDT	Tornado Warning	FWD	Fannin, Lamar	51 min
May 24, 9:15 PM CDT	Tornado Warning	FWD	Cooke, Grayson	45 min
May 24, 9:23 PM CDT	Severe Thunderstorm Warning	FWD	Denton	67 min
May 24, 9:30 PM CDT	Tornado Warning	FWD	Hunt, Kaufman, Rains, Rockwall, Van Zandt	60 min
May 24, 9:32 PM CDT	Severe Thunderstorm Warning	FWD	Parker, Tarrant, Wise	58 min
May 24, 9:45 PM CDT	Flash Flood Warning	FWD	Dallas	3 hr
May 24, 9:52 PM CDT	Severe Thunderstorm Warning	FWD	Collin, Fannin, Grayson, Hunt	53 min
May 24, 10:03 PM CDT	Severe Thunderstorm Warning	FWD	Hood, Johnson, Somervell, Tarrant	57 min
May 24, 10:09 PM CDT	Severe Thunderstorm Warning	FWD	Delta, Lamar	66 min
May 24, 10:14 PM CDT	Severe Thunderstorm Warning	FWD	Dallas, Rockwall	61 min
May 24, 10:26 PM CDT	Tornado Warning	FWD	Kaufman, Van Zandt	49 min
May 24, 10:29 PM CDT	Severe Thunderstorm Warning	FWD	Bosque, Hamilton	61 min
May 24, 10:42 PM CDT	Severe Thunderstorm Warning	FWD	Collin, Hopkins, Hunt, Rains	63 min
May 24, 10:45 PM CDT	Severe Thunderstorm Warning	FWD	Ellis, Hill	60 min
May 24, 10:52 PM CDT	Severe Thunderstorm Warning	FWD	Kaufman	53 min
May 24, 11:01 PM CDT	River Flood Warning	FWD	Dallas	6 hr
May 24, 11:04 PM CDT	Severe Thunderstorm Warning	FWD	Coryell, Lampasas, Mills	56 min
May 24, 11:14 PM CDT	Severe Thunderstorm Warning	FWD	Van Zandt	61 min
May 24, 11:16 PM CDT	Tornado Warning	FWD	Kaufman	29 min
May 24, 11:28 PM CDT	Severe Thunderstorm Warning	FWD	Bosque, McLennan	62 min
May 24, 11:43 PM CDT	Severe Thunderstorm Warning	FWD	Hopkins	15 min
May 24, 11:46 PM CDT	Severe Thunderstorm Warning	FWD	Henderson	59 min
May 25, 12:11 AM CDT	Severe Thunderstorm Warning	FWD	Van Zandt	18 min
May 25, 12:14 AM CDT	Severe Thunderstorm Warning	FWD	Lampasas	26 min
May 25, 12:48 AM CDT	Special Weather Statement	FWD	Anderson, Freestone, Limestone	27 min
May 25, 1:01 AM CDT	Severe Thunderstorm Warning	FWD	Bell	59 min
May 25, 3:13 AM CDT	Special Weather Statement	FWD	Milam	32 min
May 25, 3:46 AM CDT	Special Weather Statement	FWD	Milam	29 min
May 25, 6:28 AM CDT	River Flood Warning	FWD	Hunt, Rockwall	25 hr

Nearby

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