Alert archive / Texas / Tornado Warnings in 2011

Tornado Warning 5, NWS Fort Worth, TX

April 11, 2011Ellis County, Texas

NWS Fort Worth, TX issued this tornado warning at Apr 11, 2011, 1:35 AM CDT for Ellis County, Texas. It was in force for 25 min. 6 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 11, 2011, 1:35 AM CDT (06:35 UTC)
Expired: Apr 11, 2011, 2:00 AM CDT
In force: 25 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon

County Ellis County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 50 km from the middle of the area, began a volume at 06:37 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
Apr 11, 1:39 AM CDT	TSTM WND DMG	6 Ssw Midlothian, TX	BROKEN GLASS DUE TO ESTIMATED 65 MPH WINDS
Apr 11, 1:43 AM CDT	TSTM WND GST 80	Waxahachie, TX	WAXAHACHIE
Apr 11, 1:48 AM CDT	TSTM WND DMG	2 N Waxahachie, TX	DAMAGE TO COMFORT SUITES ON US 287 AND EAST OF I35...NORTH OF WAXAHACHIE. TIME ESTIMATED FROM RADAR
Apr 11, 1:50 AM CDT	TSTM WND DMG	4 W Waxahachie, TX	1FT DIAMETER TREE LEANING ON HOUSE AND 2FT DIAMETER TREE BLOCKING FM 875...JUST WEST OF LONE ELM.
Apr 11, 1:51 AM CDT	TSTM WND GST 90	5 N Waxahachie, TX	POSSIBLE TORNADO ACCORDING TO SPOTTER
Apr 11, 1:57 AM CDT	TSTM WND GST 61	5 Nw Waxahachie, TX	MEASURED AT KJWY

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
Apr 10, 7:02 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 6.6 hours before the alert went out and 66 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: 637 J/kg
Mixed-layer CIN: -268 J/kg
Mixed-layer LCL: 1994 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 150 m²/s²
0-3 km storm-relative helicity: 140 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.

520 
WFUS54 KFWD 110635
TORFWD
TXC139-110715-
/O.NEW.KFWD.TO.W.0005.110411T0635Z-110411T0715Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
135 AM CDT MON APR 11 2011

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

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

* UNTIL 215 AM CDT

* AT 134 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  DEVELOPING TORNADO 4 MILES NORTH OF MAYPEARL...MOVING EAST AT 65   
  MPH. THERE ARE OTHER SMALL TORNADOES POSSIBLE ALONG THE SEVERE     
  LINE OF THUNDERSTORMS. EVERYONE IN THE WARNING SHOULD TAKE         
  PRECAUTIONS IMMEDIATELY. 

* THE TORNADO WILL BE NEAR...
  WAXAHACHIE AND OVILLA AROUND 140 AM CDT...
  PECAN HILL...RED OAK AND OAK LEAF AROUND 145 AM CDT...
  PALMER...GARRETT AND ENNIS AROUND 150 AM CDT...
  FERRIS AROUND 155 AM CDT...

THIS WILL IMPACT THE FOLLOWING INTERSTATES...
I-35E BETWEEN MILE MARKERS 9 AND 41...
I-45 BETWEEN MILE MARKERS 251 AND 266.

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CDT MONDAY MORNING FOR
EASTERN TEXAS. A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT
UNTIL 500 AM CDT MONDAY MORNING FOR NORTHEASTERN TEXAS.

&&

LAT...LON 3212 9697 3229 9698 3235 9709 3249 9709
      3254 9708 3255 9705 3255 9654 3253 9650
      3248 9650 3242 9645 3241 9645
TIME...MOT...LOC 0634Z 248DEG 55KT 3238 9698

$$

3 follow-up statements

389 
WWUS54 KFWD 110644
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
144 AM CDT MON APR 11 2011

TXC139-110715-
/O.CON.KFWD.TO.W.0005.000000T0000Z-110411T0715Z/
ELLIS TX-
144 AM CDT MON APR 11 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 215 AM CDT FOR NORTHERN
ELLIS COUNTY...

AT 144 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
DEVELOPING TORNADO.  THIS TORNADO WAS LOCATED 5 MILES NORTHWEST OF
WAXAHACHIE...MOVING EAST AT 60 MPH.

THE TORNADO WILL BE NEAR...
  PECAN HILL AND RED OAK AROUND 150 AM CDT...
  FERRIS...PALMER...GARRETT AND ENNIS AROUND 155 AM CDT...

THIS WILL IMPACT THE FOLLOWING INTERSTATES...
I-35E BETWEEN MILE MARKERS 27 AND 41...
I-45 BETWEEN MILE MARKERS 251 AND 266.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO TORNADOES...DAMAGING WINDS ARE LIKELY WITH THIS 
STORM. SPOTTERS HAVE REPORTED WINDS AS HIGH AS 80 MPH.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CDT MONDAY MORNING FOR
EASTERN TEXAS.

A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 500 AM CDT
MONDAY MORNING FOR NORTHEASTERN TEXAS.

&&

LAT...LON 3230 9664 3230 9678 3235 9684 3241 9702
      3248 9704 3255 9699 3255 9654 3253 9650
      3251 9651 3248 9650 3241 9645
TIME...MOT...LOC 0644Z 258DEG 54KT 3247 9686

$$

132 
WWUS54 KFWD 110654
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
154 AM CDT MON APR 11 2011

TXC139-110715-
/O.CON.KFWD.TO.W.0005.000000T0000Z-110411T0715Z/
ELLIS TX-
154 AM CDT MON APR 11 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 215 AM CDT FOR
NORTHEASTERN ELLIS COUNTY...

AT 154 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
DEVELOPING TORNADO.  THIS TORNADO WAS LOCATED NEAR PECAN HILL...
MOVING EAST AT 60 MPH.

THIS WILL IMPACT THE FOLLOWING INTERSTATES...
I-35E BETWEEN MILE MARKERS 32 AND 41...
I-45 BETWEEN MILE MARKERS 254 AND 266.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CDT MONDAY MORNING FOR
EASTERN TEXAS. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 600 AM
CDT MONDAY MORNING FOR NORTHEASTERN TEXAS.

A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 500 AM CDT
MONDAY MORNING FOR NORTHEASTERN TEXAS.

&&

LAT...LON 3236 9663 3238 9683 3244 9688 3255 9688
      3255 9654 3253 9650 3252 9651 3248 9650
      3241 9645
TIME...MOT...LOC 0654Z 258DEG 54KT 3249 9668

$$

243 
WWUS54 KFWD 110700
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
200 AM CDT MON APR 11 2011

TXC139-110711-
/O.CAN.KFWD.TO.W.0005.000000T0000Z-110411T0715Z/
ELLIS TX-
200 AM CDT MON APR 11 2011

...THE TORNADO WARNING FOR NORTHEASTERN ELLIS COUNTY IS CANCELLED...

THIS WILL IMPACT THE FOLLOWING INTERSTATES...
I-35E BETWEEN MILE MARKERS 32 AND 41...
I-45 BETWEEN MILE MARKERS 254 AND 266.

AT 201 AM CDT THE SEVERE THUNDERSTORM THAT PROMPTED THE TORNADO
WARNING HAS EXITED THE AREA...THUS THE WARNING WAS CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 AM CDT MONDAY
MORNING FOR NORTHEASTERN TEXAS.

LAT...LON 3236 9663 3238 9683 3244 9688 3255 9688
      3255 9654 3253 9650 3252 9651 3248 9650
      3241 9645
TIME...MOT...LOC 0701Z 258DEG 54KT 3250 9656

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 10, 7:05 PM CDT	Special Weather Statement	FWD	Palo Pinto	25 min
Apr 10, 7:17 PM CDT	Special Weather Statement	FWD	Montague	28 min
Apr 10, 7:31 PM CDT	Severe Thunderstorm Warning	FWD	Jack, Palo Pinto, Parker	59 min
Apr 10, 7:42 PM CDT	Special Weather Statement	FWD	Cooke, Montague	33 min
Apr 10, 7:48 PM CDT	Severe Thunderstorm Warning	FWD	Eastland	57 min
Apr 10, 8:13 PM CDT	Special Weather Statement	FWD	Cooke	32 min
Apr 10, 8:18 PM CDT	Special Weather Statement	FWD	Wise	27 min
Apr 10, 8:32 PM CDT	Special Weather Statement	FWD	Wise	28 min
Apr 10, 8:49 PM CDT	Special Weather Statement	FWD	Eastland, Palo Pinto	26 min
Apr 10, 9:09 PM CDT	Special Weather Statement	FWD	Palo Pinto	36 min
Apr 10, 9:25 PM CDT	Severe Thunderstorm Warning	FWD	Erath, Hood, Palo Pinto, Parker	44 min
Apr 10, 9:32 PM CDT	Severe Thunderstorm Warning	FWD	Comanche, Eastland	46 min
Apr 10, 9:38 PM CDT	Special Weather Statement	FWD	Jack	37 min
Apr 10, 9:47 PM CDT	Tornado Warning	FWD	Parker	22 min
Apr 10, 9:56 PM CDT	Special Weather Statement	FWD	Montague	34 min
Apr 10, 9:59 PM CDT	Severe Thunderstorm Warning	FWD	Parker, Tarrant	35 min
Apr 10, 10:09 PM CDT	Special Weather Statement	FWD	Erath	36 min
Apr 10, 10:16 PM CDT	Severe Thunderstorm Warning	FWD	Montague	59 min
Apr 10, 10:20 PM CDT	Severe Thunderstorm Warning	FWD	Erath	34 min
Apr 10, 10:45 PM CDT	Special Weather Statement	FWD	Grayson	30 min
Apr 10, 11:04 PM CDT	Special Weather Statement	FWD	Eastland	26 min
Apr 10, 11:17 PM CDT	Special Weather Statement	FWD	Denton, Parker, Wise	28 min
Apr 10, 11:22 PM CDT	Severe Thunderstorm Warning	FWD	Mills	68 min
Apr 10, 11:52 PM CDT	Severe Thunderstorm Warning	FWD	Comanche, Coryell, Hamilton, Lampasas, Mills	53 min
Apr 10, 11:53 PM CDT	Severe Thunderstorm Warning	FWD	Dallas, Denton, Tarrant	37 min
Apr 11, 12:05 AM CDT	Severe Thunderstorm Warning	FWD	Grayson	39 min
Apr 11, 12:23 AM CDT	Severe Thunderstorm Warning	FWD	Collin, Denton	52 min
Apr 11, 12:25 AM CDT	Tornado Warning	FWD	Hamilton	20 min
Apr 11, 12:28 AM CDT	Severe Thunderstorm Warning	FWD	Bosque, Coryell, Hamilton	62 min
Apr 11, 12:41 AM CDT	Severe Thunderstorm Warning	FWD	Parker, Tarrant	64 min
Apr 11, 12:47 AM CDT	Severe Thunderstorm Warning	FWD	Fannin, Grayson	58 min
Apr 11, 12:49 AM CDT	Severe Thunderstorm Warning	FWD	Hood, Johnson, Somervell	41 min
Apr 11, 12:55 AM CDT	Severe Thunderstorm Warning	FWD	Hill	35 min
Apr 11, 1:15 AM CDT	Tornado Warning	FWD	Johnson	21 min
Apr 11, 1:23 AM CDT	Severe Thunderstorm Warning	FWD	Ellis, Hill, Johnson, Navarro	51 min
Apr 11, 1:34 AM CDT	Severe Thunderstorm Warning	FWD	Dallas	43 min
Apr 11, 1:53 AM CDT	Severe Thunderstorm Warning	FWD	Henderson, Kaufman	52 min
Apr 11, 2:01 AM CDT	Tornado Warning	FWD	Dallas, Kaufman	30 min
Apr 11, 2:13 AM CDT	Tornado Warning	FWD	Hunt, Kaufman, Rockwall	35 min
Apr 11, 2:19 AM CDT	Severe Thunderstorm Warning	FWD	Rains, Van Zandt	56 min
Apr 11, 2:38 AM CDT	Severe Thunderstorm Warning	FWD	Delta, Hopkins, Hunt	52 min
Apr 11, 2:59 AM CDT	Special Weather Statement	FWD	Navarro	31 min
Apr 11, 3:27 AM CDT	Special Weather Statement	FWD	Henderson	33 min
Apr 11, 4:07 AM CDT	Special Weather Statement	FWD	Henderson	23 min
Apr 11, 4:14 AM CDT	Special Weather Statement	FWD	Falls	31 min
Apr 11, 5:05 AM CDT	Special Weather Statement	FWD	Milam	25 min

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.