Alert archive / Texas / Tornado Warnings in 2011

Tornado Warning 75, NWS Fort Worth, TX

April 26, 2011Leon County, Texas

NWS Fort Worth, TX issued this tornado warning at Apr 26, 2011, 9:48 PM CDT for Leon County, Texas. It was in force for 42 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
Apr 26, 2011, 9:48 PM CDT (02:48 UTC)
Expired
Apr 26, 2011, 10:30 PM CDT
In force
42 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon

County Leon County, TX

The radar

The Ft Hood radar (KGRK), 166 km from the middle of the area, began a volume at 02:49 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.

IssuedProductOfficeLasted
Apr 26, 1:44 PM CDTTornado Watch PDSSPC10 hr
Apr 26, 9:42 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 2.8 hours before the alert went out and 203 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 00:00Z on 2011-04-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1466 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 00:00Z on 2011-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 square meters per square second.1939587897117136Sfc1 km3 km6 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
1466 J/kg
Mixed-layer CIN
-154 J/kg
Mixed-layer LCL
1066 m above ground
0-6 km bulk shear
83 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
212 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

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

591 
WFUS54 KFWD 270248
TORFWD
TXC289-270330-
/O.NEW.KFWD.TO.W.0075.110427T0248Z-110427T0330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
948 PM CDT TUE APR 26 2011

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

* TORNADO WARNING FOR...
  LEON COUNTY IN NORTHEAST TEXAS...

* UNTIL 1030 PM CDT

* AT 948 PM CDT...A SEVERE THUNDERSTORM WITH A HISTORY OF PRODUCING
  TORNADOES WAS 8 MILES NORTHWEST OF JEWETT...MOVING EAST AT 30 MPH.

* THE TORNADO WILL BE NEAR...
  JEWETT AROUND 1000 PM CDT...
  BUFFALO AROUND 1005 PM CDT...
  CENTERVILLE AROUND 1020 PM CDT...
  OAKWOOD AROUND 1025 PM CDT...

THIS WILL IMPACT I-45 BETWEEN MILE MARKERS 160 AND 180.

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

&&

LAT...LON 3115 9591 3136 9632 3138 9632 3150 9606
      3162 9579 3161 9576 3164 9575 3163 9575
      3156 9573 3154 9576 3149 9572 3147 9572
      3130 9568
TIME...MOT...LOC 0248Z 281DEG 27KT 3144 9623

$$


85/NH
3 follow-up statements
535 
WWUS54 KFWD 270309
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
1009 PM CDT TUE APR 26 2011

TXC289-270330-
/O.CON.KFWD.TO.W.0075.000000T0000Z-110427T0330Z/
LEON TX-
1009 PM CDT TUE APR 26 2011

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

AT 1008 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
DEVELOPING TORNADO.  THIS TORNADO WAS LOCATED 5 MILES SOUTHEAST OF
BUFFALO...MOVING EAST AT 45 MPH.

THE TORNADO WILL AFFECT...
  CORINTH THROUGH 1015 PM CDT

THIS WILL IMPACT I-45 BETWEEN MILE MARKERS 159 AND 180.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3115 9591 3136 9632 3138 9632 3150 9606
      3162 9579 3161 9576 3164 9575 3163 9575
      3156 9573 3154 9576 3149 9572 3147 9572
      3130 9568
TIME...MOT...LOC 0308Z 288DEG 38KT 3137 9597

$$
459 
WWUS54 KFWD 270321
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
1021 PM CDT TUE APR 26 2011

TXC289-270330-
/O.CON.KFWD.TO.W.0075.000000T0000Z-110427T0330Z/
LEON TX-
1021 PM CDT TUE APR 26 2011

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

AT 1020 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
DEVELOPING TORNADO.  THIS TORNADO WAS LOCATED 9 MILES NORTHEAST OF
CENTERVILLE...MOVING EAST AT 40 MPH.

MIDDLETON IS NEAR THE PATH OF THIS DEVELOPING TORNADO. 

VERY LARGE HAIL AND DAMAGING WINDS ARE ALSO LIKELY WITH THIS 
DANGEROUS SEVERE THUNDERSTORM.

THIS WILL IMPACT I-45 BETWEEN MILE MARKERS 159 AND 180.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

NIGHTTIME TORNADOES CAN BE ESPECIALLY DANGEROUS! IF YOU ARE IN THE 
PATH OF THIS STORM...SEEK SHELTER NOW. 

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.

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

&&

LAT...LON 3115 9591 3136 9632 3138 9632 3150 9606
      3162 9579 3161 9576 3164 9575 3163 9575
      3156 9573 3154 9576 3149 9572 3147 9572
      3130 9568
TIME...MOT...LOC 0320Z 283DEG 34KT 3137 9586

$$
363 
WWUS54 KFWD 270333
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
1033 PM CDT TUE APR 26 2011

TXC289-270342-
/O.EXP.KFWD.TO.W.0075.000000T0000Z-110427T0330Z/
LEON TX-
1033 PM CDT TUE APR 26 2011

...THE TORNADO WARNING FOR LEON COUNTY EXPIRED AT 1030 PM CDT...

AT 1032 PM CDT THE SEVERE THUNDERSTORM THAT PROMPTED THE TORNADO 
WARNING WEAKENED AND WAS NO LONGER CAPABLE OF PRODUCING A TORNADO. 
THE TORNADO WARNING HAS EXPIRED...BUT A SEVERE THUNDESTORM WARNING 
HAS BEEN ISSUED FOR PARTS OF LEON COUNTY UNTIL 1115 PM.

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

LAT...LON 3115 9591 3136 9632 3138 9632 3150 9606
      3162 9579 3161 9576 3164 9575 3163 9575
      3156 9573 3154 9576 3149 9572 3147 9572
      3130 9568
TIME...MOT...LOC 0321Z 283DEG 34KT 3137 9585

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 26, 7:08 PM CDTSevere Thunderstorm WarningFWDHill, McLennan, Navarro67 min
Apr 26, 7:11 PM CDTTornado WarningFWDFalls, Limestone49 min
Apr 26, 7:12 PM CDTTornado WarningFWDFreestone, Navarro48 min
Apr 26, 7:43 PM CDTTornado WarningFWDFreestone, Hill, Limestone, Navarro47 min
Apr 26, 7:46 PM CDTTornado WarningFWDHill, Limestone, McLennan44 min
Apr 26, 7:49 PM CDTTornado WarningFWDFreestone, Leon, Limestone41 min
Apr 26, 7:51 PM CDTSevere Thunderstorm WarningFWDLamar54 min
Apr 26, 7:51 PM CDTTornado WarningFWDAnderson, Freestone, Henderson, Navarro39 min
Apr 26, 8:06 PM CDTTornado WarningFWDFreestone, Limestone39 min
Apr 26, 8:12 PM CDTSevere Thunderstorm WarningFWDBosque, Hill, Limestone, McLennan63 min
Apr 26, 8:17 PM CDTTornado WarningFWDMcLennan43 min
Apr 26, 8:27 PM CDTSevere Thunderstorm WarningFWDDallas, Ellis36 min
Apr 26, 8:29 PM CDTTornado WarningFWDFreestone, Limestone46 min
Apr 26, 8:35 PM CDTTornado WarningFWDMcLennan25 min
Apr 26, 8:42 PM CDTTornado WarningFWDAnderson48 min
Apr 26, 8:57 PM CDTTornado WarningFWDMcLennan48 min
Apr 26, 9:07 PM CDTTornado WarningFWDFreestone, Leon53 min
Apr 26, 9:10 PM CDTTornado WarningFWDLimestone50 min
Apr 26, 9:20 PM CDTTornado WarningFWDFalls40 min
Apr 26, 9:28 PM CDTSevere Thunderstorm WarningFWDHunt, Kaufman35 min
Apr 26, 9:43 PM CDTSevere Thunderstorm WarningFWDMcLennan21 min
Apr 26, 9:51 PM CDTSevere Thunderstorm WarningFWDAnderson54 min
Apr 26, 9:54 PM CDTSevere Thunderstorm WarningFWDHopkins, Rains37 min
Apr 26, 9:56 PM CDTTornado WarningFWDLeon, Limestone, Robertson49 min
Apr 26, 9:59 PM CDTSevere Thunderstorm WarningFWDFalls38 min
Apr 26, 10:03 PM CDTSpecial Weather StatementFWDFreestone27 min
Apr 26, 10:17 PM CDTSevere Thunderstorm WarningFWDDelta, Hopkins27 min
Apr 26, 10:27 PM CDTSevere Thunderstorm WarningFWDLeon48 min
Apr 26, 10:41 PM CDTSevere Thunderstorm WarningFWDLimestone34 min
Apr 26, 10:41 PM CDTTornado WarningFWDLeon, Robertson49 min
Apr 26, 10:49 PM CDTSpecial Weather StatementFWDFalls26 min
Apr 26, 11:11 PM CDTSevere Thunderstorm WarningFWDLeon, Limestone, Robertson41 min
Apr 26, 11:20 PM CDTSevere Thunderstorm WarningFWDLeon55 min
Apr 26, 11:38 PM CDTTornado WarningFWDLeon33 min
Apr 27, 4:20 AM CDTFire Weather WatchFWDBell, Bosque, Comanche, Cooke, Coryell, Denton and 20 more35 hr

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.