Alert archive / Texas / Tornado Warnings in 2011

Tornado Warning 42, NWS Fort Worth, TX

April 26, 2011Ellis County, Henderson County, Kaufman County, Texas

NWS Fort Worth, TX issued this tornado warning at Apr 26, 2011, 4:00 PM CDT for Ellis County, Henderson County, Kaufman County, Texas. It was in force for 45 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, 4:00 PM CDT (21:00 UTC)
Expired: Apr 26, 2011, 4:45 PM CDT
In force: 45 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon

Counties Ellis County, TX, Henderson County, TX, Kaufman County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 94 km from the middle of the area, began a volume at 21:01 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
Apr 26, 1:44 PM CDT	Tornado Watch PDS	SPC	10 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 9.0 hours before the alert went out and 104 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 911 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 210 m²/s²
0-3 km storm-relative helicity: 244 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

432 
WFUS54 KFWD 262100
TORFWD
TXC139-213-257-262145-
/O.NEW.KFWD.TO.W.0042.110426T2100Z-110426T2145Z/

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

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL ELLIS COUNTY IN NORTH CENTRAL TEXAS...
  SOUTHERN KAUFMAN COUNTY IN NORTH CENTRAL TEXAS...
  NORTHWESTERN HENDERSON COUNTY IN NORTHEAST TEXAS...

* UNTIL 445 PM CDT

* AT 400 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  DEVELOPING TORNADO 7 MILES SOUTH OF PALMER...MOVING NORTHEAST AT 45
  MPH. SPOTTERS ARE REPORTING A ROTATING WALL CLOUD WITH THIS STORM.

* THE TORNADO WILL BE NEAR...
  ROSSER AROUND 420 PM CDT...
  GRAYS PRAIRIE AND COTTONWOOD AROUND 425 PM CDT...
  OAK GROVE AND SEVEN POINTS AROUND 430 PM CDT...
  KEMP AND GUN BARREL CITY AROUND 435 PM CDT...
  MABANK AROUND 440 PM CDT...

THIS WILL IMPACT I-45 BETWEEN MILE MARKERS 254 AND 259.

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.

&&

LAT...LON 3232 9608 3230 9629 3233 9639 3228 9649
      3228 9651 3242 9672 3266 9608
TIME...MOT...LOC 2100Z 246DEG 38KT 3234 9664

$$


92

2 follow-up statements

937 
WWUS54 KFWD 262119
SVSFWD

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

TXC139-213-257-262145-
/O.CON.KFWD.TO.W.0042.000000T0000Z-110426T2145Z/
KAUFMAN TX-ELLIS TX-HENDERSON TX-
419 PM CDT TUE APR 26 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FOR
NORTHWESTERN HENDERSON...EAST CENTRAL ELLIS AND SOUTHERN KAUFMAN
COUNTIES...

AT 419 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
DEVELOPING TORNADO.  THIS TORNADO WAS LOCATED 10 MILES SOUTH OF
ROSSER...MOVING EAST AT 30 MPH.

THE TORNADO WILL BE NEAR...
  COTTONWOOD AROUND 425 PM CDT...
  GRAYS PRAIRIE AROUND 430 PM CDT...
  OAK GROVE AROUND 435 PM CDT...
  SEVEN POINTS...GUN BARREL CITY...KEMP AND MABANK AROUND 445 PM
  CDT...

THIS WILL IMPACT THE FOLLOWING INTERSTATES...
I-20 NEAR MILE MARKER 512...
I-45 BETWEEN MILE MARKERS 254 AND 259.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT STOP UNDER BRIDGES OR HIGHWAY OVERPASSES SINCE THEY OFFER NO
PROTECTION FROM TORNADO WINDS.

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

&&

LAT...LON 3232 9608 3230 9629 3233 9639 3228 9649
      3228 9651 3242 9672 3266 9608
TIME...MOT...LOC 2119Z 260DEG 28KT 3233 9644

$$

099 
WWUS54 KFWD 262129
SVSFWD

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

TXC139-213-257-262145-
/O.CON.KFWD.TO.W.0042.000000T0000Z-110426T2145Z/
KAUFMAN TX-ELLIS TX-HENDERSON TX-
429 PM CDT TUE APR 26 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FOR
NORTHWESTERN HENDERSON...EAST CENTRAL ELLIS AND SOUTHERN KAUFMAN
COUNTIES...

AT 429 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
DEVELOPING TORNADO.  THIS TORNADO WAS LOCATED 8 MILES SOUTH OF
COTTONWOOD...MOVING EAST AT 30 MPH.

THE TORNADO WILL BE NEAR...
  GRAYS PRAIRIE AROUND 435 PM CDT...
  OAK GROVE AROUND 440 PM CDT...
  SEVEN POINTS...KEMP...GUN BARREL CITY AND MABANK AROUND 445 PM
  CDT...

THIS WILL IMPACT I-20 NEAR MILE MARKER 512.

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 1000 PM CDT TUESDAY EVENING
FOR EASTERN TEXAS.

&&

LAT...LON 3232 9608 3230 9629 3233 9639 3229 9648
      3229 9649 3247 9658 3266 9608
TIME...MOT...LOC 2129Z 259DEG 27KT 3234 9636

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 25, 7:11 PM CDT	Tornado Warning	FWD	Freestone, Leon	49 min
Apr 25, 7:17 PM CDT	Severe Thunderstorm Warning	FWD	Henderson	58 min
Apr 25, 7:28 PM CDT	Tornado Warning	FWD	Freestone	19 min
Apr 25, 7:32 PM CDT	Special Weather Statement	FWD	Navarro	28 min
Apr 25, 7:38 PM CDT	Tornado Warning	FWD	Anderson	52 min
Apr 25, 7:51 PM CDT	Tornado Warning	FWD	Freestone, Navarro	39 min
Apr 25, 7:57 PM CDT	Tornado Warning	FWD	Freestone, Leon	33 min
Apr 25, 8:27 PM CDT	Severe Thunderstorm Warning	FWD	Anderson	63 min
Apr 25, 8:30 PM CDT	Tornado Warning	FWD	Freestone, Leon	45 min
Apr 25, 8:42 PM CDT	Areal Flood Advisory	FWD	Anderson, Freestone, Leon	2 hr
Apr 25, 9:21 PM CDT	Special Weather Statement	FWD	Freestone	24 min
Apr 25, 9:29 PM CDT	Special Weather Statement	FWD	Anderson	31 min
Apr 25, 9:40 PM CDT	Special Weather Statement	FWD	Freestone	35 min
Apr 25, 10:13 PM CDT	Special Weather Statement	FWD	Leon	32 min
Apr 25, 10:28 PM CDT	Severe Thunderstorm Warning	FWD	Leon	30 min
Apr 26, 2:37 PM CDT	Special Weather Statement	FWD	Hill	23 min
Apr 26, 2:48 PM CDT	Severe Thunderstorm Warning	FWD	Ellis, Hill, Johnson	57 min
Apr 26, 3:26 PM CDT	Special Weather Statement	FWD	Dallas	34 min
Apr 26, 3:28 PM CDT	Tornado Warning	FWD	Ellis, Navarro	47 min
Apr 26, 3:33 PM CDT	Special Weather Statement	FWD	Robertson	27 min
Apr 26, 3:44 PM CDT	Severe Thunderstorm Warning	FWD	Leon, Robertson	61 min
Apr 26, 3:53 PM CDT	Severe Thunderstorm Warning	FWD	Dallas, Ellis, Kaufman	52 min
Apr 26, 3:54 PM CDT	Severe Thunderstorm Warning	FWD	Milam	51 min
Apr 26, 4:13 PM CDT	Tornado Warning	FWD	Henderson, Navarro	47 min
Apr 26, 4:15 PM CDT	Severe Thunderstorm Warning	FWD	Ellis, Johnson	60 min
Apr 26, 4:22 PM CDT	Severe Thunderstorm Warning	FWD	Anderson	38 min
Apr 26, 4:28 PM CDT	Severe Thunderstorm Warning	FWD	Falls, Limestone	62 min
Apr 26, 4:32 PM CDT	Tornado Warning	FWD	Leon, Robertson	43 min
Apr 26, 4:40 PM CDT	Severe Thunderstorm Warning	FWD	Milam, Robertson	52 min
Apr 26, 4:41 PM CDT	Tornado Warning	FWD	Henderson, Kaufman, Van Zandt	64 min
Apr 26, 4:43 PM CDT	Severe Thunderstorm Warning	FWD	Leon	32 min
Apr 26, 4:50 PM CDT	Severe Thunderstorm Warning	FWD	Dallas, Ellis, Hill, Johnson	55 min
Apr 26, 4:54 PM CDT	Tornado Warning	FWD	Leon	23 min
Apr 26, 4:56 PM CDT	Severe Thunderstorm Warning	FWD	Hill	30 min
Apr 26, 5:03 PM CDT	Severe Thunderstorm Warning	FWD	Anderson	57 min
Apr 26, 5:09 PM CDT	Tornado Warning	FWD	Ellis, Kaufman	51 min
Apr 26, 5:13 PM CDT	Severe Thunderstorm Warning	FWD	Leon	47 min
Apr 26, 5:19 PM CDT	Severe Thunderstorm Warning	FWD	Ellis, Hill, Navarro	56 min
Apr 26, 5:22 PM CDT	Severe Thunderstorm Warning	FWD	Collin, Dallas, Rockwall	30 min
Apr 26, 5:25 PM CDT	Tornado Warning	FWD	Ellis, Navarro	50 min
Apr 26, 5:26 PM CDT	Severe Thunderstorm Warning	FWD	Fannin, Lamar	32 min
Apr 26, 5:33 PM CDT	Tornado Warning	FWD	Hill, Navarro	42 min
Apr 26, 5:42 PM CDT	Tornado Warning	FWD	Van Zandt	48 min
Apr 26, 5:43 PM CDT	Severe Thunderstorm Warning	FWD	Ellis, Hill, Johnson	62 min
Apr 26, 5:46 PM CDT	Severe Thunderstorm Warning	FWD	Lamar	59 min
Apr 26, 5:50 PM CDT	Tornado Warning	FWD	Henderson, Kaufman, Van Zandt	40 min
Apr 26, 5:54 PM CDT	Severe Thunderstorm Warning	FWD	Bosque, Hill, Limestone, McLennan	66 min
Apr 26, 5:55 PM CDT	Severe Thunderstorm Warning	FWD	Delta, Hopkins, Hunt	65 min
Apr 26, 6:05 PM CDT	Tornado Warning	FWD	Henderson, Navarro	40 min
Apr 26, 6:11 PM CDT	Tornado Warning	FWD	Navarro	49 min
Apr 26, 6:26 PM CDT	Tornado Warning	FWD	Ellis, Navarro	49 min
Apr 26, 6:27 PM CDT	Tornado Warning	FWD	Henderson, Van Zandt	63 min
Apr 26, 6:31 PM CDT	Tornado Warning	FWD	Falls, Limestone, McLennan	44 min
Apr 26, 6:43 PM CDT	Severe Thunderstorm Warning	FWD	Delta, Fannin, Lamar	62 min
Apr 26, 6:43 PM CDT	Tornado Warning	FWD	Henderson	47 min
Apr 26, 6:54 PM CDT	Tornado Warning	FWD	Delta, Hopkins, Lamar	21 min
Apr 26, 6:54 PM CDT	Tornado Warning	FWD	Henderson, Navarro	51 min
Apr 26, 6:55 PM CDT	Severe Thunderstorm Warning	FWD	Ellis	46 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.