Alert archive / Texas / Tornado Warnings in 2011

Tornado Warning 65, NWS Fort Worth, TX

April 26, 20114 counties in Texas

NWS Fort Worth, TX issued this tornado warning at Apr 26, 2011, 7:51 PM CDT for 4 counties in Texas. It was in force for 39 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, 7:51 PM CDT (00:51 UTC)
Expired
Apr 26, 2011, 8:30 PM CDT
In force
39 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon

Counties Anderson County, TX, Freestone County, TX, Henderson County, TX, Navarro County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 154 km from the middle of the area, began a volume at 00:51 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

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 0.9 hours before the alert went out and 167 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°0°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.

478 
WFUS54 KFWD 270051
TORFWD
TXC001-161-213-349-270130-
/O.NEW.KFWD.TO.W.0065.110427T0051Z-110427T0130Z/

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

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

* TORNADO WARNING FOR...
  NORTH CENTRAL FREESTONE COUNTY IN NORTH CENTRAL TEXAS...
  EAST CENTRAL NAVARRO COUNTY IN NORTH CENTRAL TEXAS...
  NORTHWESTERN ANDERSON COUNTY IN NORTHEAST TEXAS...
  SOUTH CENTRAL HENDERSON COUNTY IN NORTHEAST TEXAS...

* UNTIL 830 PM CDT

* AT 751 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  DEVELOPING TORNADO OVER EXTREME EAST CENTRAL NAVARRO COUNTY...
  MOVING EAST AT 35 MPH.

* THE TORNADO WILL BE NEAR...
  RURAL NORTHWESTERN ANDERSON COUNTY AT 810 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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT.

&&

LAT...LON 3210 9563 3194 9552 3175 9571 3182 9604
      3190 9620 3212 9614
TIME...MOT...LOC 0051Z 275DEG 29KT 3199 9611

$$


85/NH
3 follow-up statements
471 
WWUS54 KFWD 270104
SVSFWD

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

TXC349-270114-
/O.CAN.KFWD.TO.W.0065.000000T0000Z-110427T0130Z/
NAVARRO TX-
804 PM CDT TUE APR 26 2011

...THE TORNADO WARNING FOR EAST CENTRAL NAVARRO COUNTY IS
CANCELLED...

A TORNADO WARNING REMAINS IN EFFECT FOR ANOTHER STORM THAT IS IN 
WESTERN NAVARRO COUNTY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT TUESDAY EVENING
FOR EASTERN TEXAS.

LAT...LON 3175 9571 3184 9608 3185 9610 3198 9612
      3199 9610 3202 9605 3205 9607 3210 9603
      3210 9563 3194 9552
TIME...MOT...LOC 0104Z 273DEG 30KT 3199 9598

$$

TXC001-161-213-270130-
/O.CON.KFWD.TO.W.0065.000000T0000Z-110427T0130Z/
HENDERSON TX-ANDERSON TX-FREESTONE TX-
804 PM CDT TUE APR 26 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR NORTH
CENTRAL FREESTONE...NORTHWESTERN ANDERSON AND SOUTH CENTRAL HENDERSON
COUNTIES...

AT 804 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
DEVELOPING TORNADO.  THIS TORNADO WAS LOCATED OVER EXTREME
NORTHWESTERN ANDERSON COUNTY...MOVING EAST AT 35 MPH.

THE TORNADO WILL BE NEAR...
  RURAL NORTHERN ANDERSON COUNTY AT 820 PM CDT

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT TUESDAY EVENING
FOR EASTERN TEXAS.

&&

LAT...LON 3175 9571 3184 9608 3185 9610 3198 9612
      3199 9610 3202 9605 3205 9607 3210 9603
      3210 9563 3194 9552
TIME...MOT...LOC 0104Z 273DEG 30KT 3199 9598

$$
447 
WWUS54 KFWD 270113
SVSFWD

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

TXC161-270122-
/O.CAN.KFWD.TO.W.0065.000000T0000Z-110427T0130Z/
FREESTONE TX-
813 PM CDT TUE APR 26 2011

...THE TORNADO WARNING FOR NORTH CENTRAL FREESTONE COUNTY IS
CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT TUESDAY EVENING
FOR EASTERN TEXAS.

LAT...LON 3185 9564 3187 9579 3190 9590 3192 9591
      3196 9599 3201 9602 3204 9603 3210 9602
      3210 9563 3194 9552
TIME...MOT...LOC 0112Z 273DEG 30KT 3199 9590

$$

TXC001-213-270130-
/O.CON.KFWD.TO.W.0065.000000T0000Z-110427T0130Z/
HENDERSON TX-ANDERSON TX-
813 PM CDT TUE APR 26 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR
NORTHWESTERN ANDERSON AND SOUTH CENTRAL HENDERSON COUNTIES...

AT 812 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A 
DEVELOPING TORNADO.  THIS TORNADO WAS LOCATED OVER THE NORTHWEST 
CORNER OF ANDERSON COUNTY...MOVING EAST AT 35 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT TUESDAY EVENING
FOR EASTERN TEXAS.

&&

LAT...LON 3185 9564 3187 9579 3190 9590 3192 9591
      3196 9599 3201 9602 3204 9603 3210 9602
      3210 9563 3194 9552
TIME...MOT...LOC 0112Z 273DEG 30KT 3199 9590

$$
806 
WWUS54 KFWD 270130 RRA
SVSFWD

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

TXC001-213-270140-
/O.EXP.KFWD.TO.W.0065.000000T0000Z-110427T0130Z/
HENDERSON TX-ANDERSON TX-
830 PM CDT TUE APR 26 2011

...THE TORNADO WARNING FOR NORTHWESTERN ANDERSON AND SOUTH CENTRAL
HENDERSON COUNTIES EXPIRES AT 830 PM CDT...

AT 830 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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT TUESDAY EVENING
FOR EASTERN TEXAS.

LAT...LON 3185 9564 3187 9579 3190 9590 3192 9591
      3196 9599 3201 9602 3204 9603 3210 9602
      3210 9563 3194 9552
TIME...MOT...LOC 0113Z 273DEG 30KT 3199 9589

$$

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, 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, 9:48 PM CDTTornado WarningFWDLeon42 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.