Alert archive / Texas / Tornado Warnings in 2011

Tornado Warning 95, NWS Fort Worth, TX

May 24, 2011Fannin County, Grayson County, Texas

NWS Fort Worth, TX issued this tornado warning at May 24, 2011, 8:29 PM CDT for Fannin County, Grayson County, Texas. It was in force for 46 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: May 24, 2011, 8:29 PM CDT (01:29 UTC)
Expired: May 24, 2011, 9:15 PM CDT
In force: 46 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon

Counties Fannin County, TX, Grayson County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 171 km from the middle of the area, began a volume at 01:29 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
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, 1.5 hours before the alert went out and 149 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.

940 
WFUS54 KFWD 250129
TORFWD
TXC147-181-250215-
/O.NEW.KFWD.TO.W.0095.110525T0129Z-110525T0215Z/

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

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

* TORNADO WARNING FOR...
  FANNIN COUNTY IN NORTH CENTRAL TEXAS...
  EASTERN GRAYSON COUNTY IN NORTH CENTRAL TEXAS...

* UNTIL 915 PM CDT

* AT 829 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  DEVELOPING TORNADO 5 MILES WEST OF BELLS...MOVING EAST AT 50 MPH.

* THE TORNADO WILL BE NEAR...
  SAVOY AROUND 835 PM CDT...
  ECTOR AROUND 840 PM CDT...
  BONHAM AND BONHAM STATE PARK AROUND 845 PM CDT...
  DODD CITY AROUND 850 PM CDT...
  WINDOM AROUND 855 PM CDT...
  HONEY GROVE 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.

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 3384 9584 3349 9586 3349 9652 3383 9654
      3378 9650 3379 9642 3370 9634 3377 9629
      3376 9619 3379 9617 3381 9618 3385 9613
      3385 9601 3388 9600 3387 9595 3389 9592
TIME...MOT...LOC 0129Z 257DEG 45KT 3365 9644

$$


CAVANAUGH

2 follow-up statements

338 
WWUS54 KFWD 250139
SVSFWD

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

TXC147-181-250215-
/O.CON.KFWD.TO.W.0095.000000T0000Z-110525T0215Z/
FANNIN TX-GRAYSON TX-
839 PM CDT TUE MAY 24 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR EASTERN
GRAYSON AND FANNIN COUNTIES...

AT 837 PM CDT...STORM SPOTTERS HAVE OBSERVED A FUNNEL CLOUD NEAR 
BELLS...MOVING EAST AT 35 MPH.

IF A TORNADO FORMS...IT WILL BE NEAR...
  SAVOY AROUND 845 PM CDT...
  ECTOR AROUND 850 PM CDT...
  BONHAM AROUND 855 PM CDT...

IN ADDITION...BASEBALL HAIL WILL BE POSSIBLE TO THE NORTH OF THE 
PATH OF THE CIRCULATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EVACUATE MOBILE HOMES FOR A STORM SHELTER OR PERMANENT BUILDING.

&&

LAT...LON 3384 9584 3349 9586 3349 9652 3383 9654
      3378 9650 3379 9642 3370 9634 3377 9629
      3376 9619 3379 9617 3381 9618 3385 9613
      3385 9601 3388 9600 3387 9595 3389 9592
TIME...MOT...LOC 0137Z 270DEG 31KT 3363 9639

$$


25

473 
WWUS54 KFWD 250200
SVSFWD

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

TXC181-250208-
/O.CAN.KFWD.TO.W.0095.000000T0000Z-110525T0215Z/
GRAYSON TX-
900 PM CDT TUE MAY 24 2011

...THE TORNADO WARNING FOR EASTERN GRAYSON COUNTY IS CANCELLED...

THE POTENTIALLY TORNADIC SUPERCELL THAT PROMPTED THE TORNADO WARNING 
HAS MOVED INTO FANNIN COUNTY. HOWEVER...A SEVERE THUNDERSTORM 
REMAINS IN EFFECT FOR GRAYSON COUNTY.

LAT...LON 3389 9592 3384 9584 3362 9586 3361 9625
      3377 9629 3375 9622 3376 9619 3379 9617
      3381 9618 3385 9613 3385 9602 3388 9600
      3387 9595
TIME...MOT...LOC 0158Z 255DEG 38KT 3371 9611

$$

TXC147-250215-
/O.CON.KFWD.TO.W.0095.000000T0000Z-110525T0215Z/
FANNIN TX-
900 PM CDT TUE MAY 24 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR NORTHERN
FANNIN COUNTY...

AT 858 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A 
SUPERCELL THUNDERSTORM NEAR IVANHOE...MOVING EAST AT 45 MPH.

ALTHOUGH THE CIRCULATION HAS WEAKENED...THE TORNADIC THREAT HAS NOT 
ENDED. THE CIRCULATION WILL APPROACH THE COFFEE MILL LAKE AREA.

LAT...LON 3389 9592 3384 9584 3362 9586 3361 9625
      3377 9629 3375 9622 3376 9619 3379 9617
      3381 9618 3385 9613 3385 9602 3388 9600
      3387 9595
TIME...MOT...LOC 0158Z 255DEG 38KT 3371 9611

$$


25

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, 8:35 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, 9:40 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.