Alert archive / Texas / Tornado Warnings in 2011

Tornado Warning 97, NWS Fort Worth, TX

May 24, 2011Dallas County, Kaufman County, Rockwall County, Texas

NWS Fort Worth, TX issued this tornado warning at May 24, 2011, 8:41 PM CDT for Dallas County, Kaufman County, Rockwall County, Texas. It was in force for 64 min. 4 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, 8:41 PM CDT (01:41 UTC)
Expired: May 24, 2011, 9:45 PM CDT
In force: 64 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon

Counties Dallas County, TX, Kaufman County, TX, Rockwall County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 77 km from the middle of the area, began a volume at 01:43 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, 8:49 PM CDT	HAIL 2.75	Dallas, TX	SKILLMAN &AMP; SOUTHWESTERN
May 24, 9:30 PM CDT	TSTM WND DMG	1 E Dallas, TX	VERY LARGE TREE BRANCHES BROKEN AND WOOD FENCE BLOWN DOWN. ONE INCH HAIL OCCURRED AS WELL.
May 24, 9:30 PM CDT	HAIL 1.5	Dallas, TX	NEAR DOWNTOWN DALLAS.
May 24, 9:48 PM CDT	TORNADO	6 Sw Balch Springs, TX	I-20 AND TRINITY RIVER

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
May 24, 8:05 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 1.7 hours before the alert went out and 74 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.

564 
WFUS54 KFWD 250141
TORFWD
TXC113-257-397-250245-
/O.NEW.KFWD.TO.W.0097.110525T0141Z-110525T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
841 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...
  NORTHWESTERN KAUFMAN COUNTY IN NORTH CENTRAL TEXAS...
  ROCKWALL COUNTY IN NORTH CENTRAL TEXAS...

* UNTIL 945 PM CDT

* AT 840 PM CDT...STORM SPOTTERS AND DOPPLER RADAR OBSERVED A TORNADO
  NEAR HIGHLAND PARK...MOVING EAST AT 35 MPH.  THIS THUNDERSTORM HAS 
A HISTORY OF PRODUCING TORNADO DAMAGE IN THE METROPLEX.  THIS IS AN 
EXTREMELY DANGEROUS STORM...IF YOU ARE IN ITS PATH...TAKE COVER 
IMMEDIATELY!  ANOTHER THUNDERSTORM WAS MOVING INTO WESTERN DALLAS 
COUNTY...THIS STORM MAY INTENSIFY AND PRODUCE A TORNADO AS WELL.

* THE TORNADO WILL BE NEAR...
  HIGHLAND PARK...UNIVERSITY PARK AND DALLAS AROUND 845 PM CDT...
  BUCKINGHAM...RICHARDSON AND LANCASTER AROUND 850 PM CDT...
  HUTCHINS AND WILMER AROUND 855 PM CDT...
  BALCH SPRINGS AND GARLAND AROUND 900 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 3298 9630 3284 9630 3284 9629 3251 9626
      3252 9651 3255 9653 3255 9703 3299 9703
TIME...MOT...LOC 0140Z 277DEG 32KT 3283 9684

$$


CAVANAUGH

2 follow-up statements

059 
WWUS54 KFWD 250152 RRA
SVSFWD

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

TXC113-257-397-250245-
/O.CON.KFWD.TO.W.0097.000000T0000Z-110525T0245Z/
DALLAS TX-KAUFMAN TX-ROCKWALL TX-
852 PM CDT TUE MAY 24 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR
ROCKWALL...NORTHWESTERN KAUFMAN AND DALLAS COUNTIES...

AT 851 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
MONITORING A SEVERE THUNDERSTORM WITH A HISTORY OF PRODUCING ONE OR 
MORE TORNADOES CAPABLE OF PRODUCING AN ADDITIONAL TORNADO NEAR 
UNIVERSITY PARK.  LARGE DAMAGING HAIL UP TO BASEBALL SIZE IS ALSO 
POSSIBLE.  THIS STORM IS MOVING EAST AT 30 MPH.  AN ADDITIONAL STORM 
CAPABLE OF PRODUCING A TORNADO IS LOCATED IN EASTERN TARRANT COUNTY 
AND WILL MOVE INTO DALLAS COUNTY OVER THE NEXT HALF HOUR.  

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 3298 9630 3284 9630 3284 9629 3251 9626
      3252 9651 3255 9653 3255 9703 3299 9703
TIME...MOT...LOC 0151Z 260DEG 27KT 3284 9676

$$


DUNN

217 
WWUS54 KFWD 250237
SVSFWD

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

TXC113-257-397-250245-
/O.CON.KFWD.TO.W.0097.000000T0000Z-110525T0245Z/
DALLAS TX-KAUFMAN TX-ROCKWALL TX-
937 PM CDT TUE MAY 24 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR 
DALLAS COUNTY...

AT 937 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A 
DEVELOPING TORNADO NEAR DUNCANVILLE MOVING NORTHEAST AT 35 MPH.  
THIS STORM IS CAPABLE OF PRODUCING LARGE DAMAGING HAIL UP TO 
BASEBALL SIZE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3298 9630 3284 9630 3284 9629 3251 9626
      3252 9651 3255 9653 3255 9703 3299 9703
TIME...MOT...LOC 0237Z 244DEG 30KT 3266 9690

$$


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, 8:44 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, 9:40 PM CDT	Tornado Warning	FWD	Dallas	33 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.