Alert archive / Texas / Tornado Warnings in 2011

Tornado Warning 76, NWS Fort Worth, TX

April 26, 2011Leon County, Limestone County, Robertson County, Texas

NWS Fort Worth, TX issued this tornado warning at Apr 26, 2011, 9:56 PM CDT for Leon County, Limestone County, Robertson County, Texas. It was in force for 49 min. 2 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 26, 2011, 9:56 PM CDT (02:56 UTC)
Expired
Apr 26, 2011, 10:45 PM CDT
In force
49 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon

Counties Leon County, TX, Limestone County, TX, Robertson County, TX

The radar

The Ft Hood radar (KGRK), 133 km from the middle of the area, began a volume at 02:58 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

TimeReportWhereRemark
Apr 26, 10:02 PM CDTTORNADO3 Sse Thornton, TXSPOTTER OBSERVED TORNADO BECOMING RAIN-WRAPPED...3 SSE OF THORNTON
Apr 26, 10:05 PM CDTTSTM WND DMG5 Sse Thornton, TXMULTIPLE TREES DOWN AND ON THE ROAD.

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.

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, 2.9 hours before the alert went out and 217 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.

544 
WFUS54 KFWD 270256
TORFWD
TXC289-293-395-270345-
/O.NEW.KFWD.TO.W.0076.110427T0256Z-110427T0345Z/

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

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN LIMESTONE COUNTY IN NORTH CENTRAL TEXAS...
  SOUTHERN LEON COUNTY IN NORTHEAST TEXAS...
  NORTHEASTERN ROBERTSON COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 1045 PM CDT

* AT 956 PM CDT...A SEVERE THUNDERSTORM WITH A HISTORY OF PRODUCING
  TORNADOES WAS 4 MILES SOUTH OF THORNTON...MOVING EAST AT 40 MPH.

* THE TORNADO WILL BE NEAR...
  MARQUEZ AROUND 1025 PM CDT...
  JEWETT AROUND 1030 PM CDT...
  LEONA AND CENTERVILLE AROUND 1045 PM CDT...

THIS WILL IMPACT I-45 BETWEEN MILE MARKERS 153 AND 169.

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 WEDNESDAY MORNING
FOR EASTERN TEXAS.

&&

LAT...LON 3114 9576 3114 9577 3110 9578 3109 9598
      3106 9608 3101 9615 3099 9623 3123 9660
      3138 9670 3150 9654 3125 9571
TIME...MOT...LOC 0256Z 292DEG 34KT 3135 9654

$$
2 follow-up statements
892 
WWUS54 KFWD 270314
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
1014 PM CDT TUE APR 26 2011

TXC289-293-395-270345-
/O.CON.KFWD.TO.W.0076.000000T0000Z-110427T0345Z/
LIMESTONE TX-LEON TX-ROBERTSON TX-
1014 PM CDT TUE APR 26 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT FOR
NORTHEASTERN ROBERTSON...SOUTHERN LEON AND SOUTHEASTERN LIMESTONE
COUNTIES...

AT 1014 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
DEVELOPING TORNADO.  THIS TORNADO WAS LOCATED 11 MILES SOUTHEAST OF
THORNTON...MOVING EAST AT 35 MPH.

ANOTHER DEVELOPING CIRCULATION WAS INDICATED BY RADAR NEAR KOSSE IN 
EXTREME SOUTHERN LIMESTONE COUNTY. MOVEMENT WAS TO THE EAST 
SOUTHEAST AT 35 MPH.

THE TORNADO WILL BE NEAR...
  MARQUEZ AROUND 1030 PM CDT...
  JEWETT AROUND 1035 PM CDT...
  CENTERVILLE AROUND 1045 PM CDT...

THIS WILL IMPACT I-45 BETWEEN MILE MARKERS 153 AND 169.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3114 9576 3114 9577 3110 9578 3109 9598
      3106 9608 3101 9615 3099 9623 3123 9660
      3138 9670 3150 9654 3125 9571
TIME...MOT...LOC 0314Z 287DEG 31KT 3132 9640

$$
267 
WWUS54 KFWD 270328
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
1028 PM CDT TUE APR 26 2011

TXC289-293-395-270345-
/O.CON.KFWD.TO.W.0076.000000T0000Z-110427T0345Z/
LIMESTONE TX-LEON TX-ROBERTSON TX-
1028 PM CDT TUE APR 26 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT FOR
NORTHEASTERN ROBERTSON...SOUTHERN LEON AND SOUTHEASTERN LIMESTONE
COUNTIES...

AT 1028 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
DEVELOPING TORNADO.  THIS TORNADO WAS LOCATED 8 MILES SOUTHEAST OF
KOSSE...MOVING EAST AT 30 MPH.

LARGE HAIL AND DAMAGING WINDS WILL ALSO ACCOMPANY THE THUNDERSTORM 
AS IT MOVES TOWARD MARQUEZ.

THE TORNADO WILL BE NEAR...
  MARQUEZ AROUND 1045 PM CDT...

THIS WILL IMPACT I-45 BETWEEN MILE MARKERS 153 AND 169.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORNADOES CAN BE ESPECIALLY DANGEROUS AT NIGHT! 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 3110 9578 3109 9598 3106 9608 3101 9615
      3099 9623 3123 9660 3137 9669 3146 9640
      3125 9572 3123 9572
TIME...MOT...LOC 0328Z 291DEG 28KT 3125 9649

$$

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, 9:48 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, 9:59 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.