Alert archive / Texas / Tornado Warnings in 2011

Tornado Warning 57, NWS Fort Worth, TX

April 26, 2011Henderson County, Texas

NWS Fort Worth, TX issued this tornado warning at Apr 26, 2011, 6:43 PM CDT for Henderson County, Texas. It was in force for 47 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, 6:43 PM CDT (23:43 UTC)
Expired: Apr 26, 2011, 7:30 PM CDT
In force: 47 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon

County Henderson County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 152 km from the middle of the area, began a volume at 23:46 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this tornado warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

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, 11.7 hours before the alert went out and 160 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.

224 
WFUS54 KFWD 262343
TORFWD
TXC213-270030-
/O.NEW.KFWD.TO.W.0057.110426T2343Z-110427T0030Z/

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

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN HENDERSON COUNTY IN NORTHEAST TEXAS...

* UNTIL 730 PM CDT

* AT 643 PM CDT...A SEVERE THUNDERSTORM WITH A HISTORY OF PRODUCING
  TORNADOES WAS NEAR EUSTACE...MOVING EAST AT 30 MPH.

* THE TORNADO WILL BE NEAR...
  ATHENS AROUND 700 PM CDT...
  MURCHISON AROUND 710 PM CDT...
  MOORE STATION AND BROWNSBORO AROUND 730 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 TUESDAY EVENING
FOR EASTERN TEXAS.

&&

LAT...LON 3219 9548 3208 9559 3214 9588 3225 9608
      3236 9608 3236 9585 3235 9545
TIME...MOT...LOC 2343Z 280DEG 26KT 3228 9600

$$


85/NH

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Fort Worth, TX wrote its last area forecast discussion before this tornado warning went out at Apr 26, 4:15 PM CDT, 2 hours 28 minutes earlier.

Area forecast discussion, Apr 26, 4:15 PM CDT, 2 hours 28 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FORT WORTH TX
415 PM CDT TUE APR 26 2011

.AVIATION...
21Z UPDATES TO INCLUDE TEMPO TSRA FOR GKY AND DAL FOR THE SHORT
TERM BASED ON DEVELOPMENT AND TRAJECTORY OF RECENTLY-DEVELOPED
SEVERE STORMS...WHICH APPEAR TO BE INITIATING NEAR SFC BOUNDARY.
WILL INCLUDE VCTS AT ALL OTHER SITES EXCEPT AFW WHICH APPEARS TO
REMAIN JUST WEST OF AXIS OF CONVECTIVE DEVELOPMENT. POSSIBILITY
EXIST OF ELEVATED STORMS LATER TONIGHT AS UPPER SHORTWAVE
APPROACHES FROM THE NORTHWEST BUT WILL NOT INCLUDE IN FORECASTS
JUST YET...WILL MONITOR RADAR TRENDS UPSTREAM AND ADDRESS IT LATER
IF NEED BE.

30

&&

.PREV DISCUSSION... /ISSUED 215 PM CDT TUE APR 26 2011/
PARTICULARLY DANGEROUS SITUATION TODAY AND THIS EVENING...WITH
ALL ELEMENTS IN PLACE FOR LARGE HAIL...TORNADOES...DAMAGING WINDS
INTERSTATE 35 CORRIDOR AND EAST. CAPE VALUES IN WARM SECTOR ARE
OVER 4000 JOULES...AND 0-1 KM HELICITY VALUES NEAR FRONT ARE
ABOVE 300. AS CYCLOGENESIS OCCURS TODAY...WARM FRONT SHOULD
RETREAT NORTHWARD AND DRY LINE SHOULD PUSH EAST. TRIPLE POINT
INITIALLY NEAR BOSQUE COUNTY SHOULD PUSH NORTH ACROSS THE
METROPLEX. BEST SPOT FOR INITIAL CONVECTION IS NEAR TRIPLE POINT
SOUTH OF METROPLEX. STORM MOTION IS NORTHEAST...WITH RIGHT MOVING
SUPERCELLS MOVING EAST NORTHEAST. THIS WOULD KEEP THEM IN THE
WARM SECTOR AND ALLOW FOR LONG TRACK TORNADOES AND/OR WIDESPREAD
HAIL.

BY EARLY MORNING COLD FRONT SWEEPS ACROSS THE AREA AND PRECIP
SHOULD BE LIMITED TO THE NORTHEAST BY SUNRISE...ENDING SHORTLY
THEREAFTER. NO CHANGES FOR REST OF THE WEEK WITH NEXT SYSTEM
SATURDAY INTO SUNDAY.   84

&&

.PRELIMINARY POINT TEMPS/POPS...
DALLAS-FT. WORTH, TX  60  71  53  78  59 /  30   5   5   5   5
WACO, TX              66  79  52  82  58 /  20   5   5   5   5
PARIS, TX             63  68  48  75  54 /  60  20   5   5   5
DENTON, TX            57  70  48  78  58 /  30   5   5   5   5
MCKINNEY, TX          61  70  49  78  56 /  50  10   5   5   5
DALLAS, TX            63  72  53  77  60 /  40   5   5   5   5
TERRELL, TX           64  72  51  77  57 /  50  10   5   5   5
CORSICANA, TX         67  78  54  78  58 /  30   5   5   5   5
TEMPLE, TX            65  81  53  82  57 /  20   5   5   5   5
MINERAL WELLS, TX     58  73  50  78  58 /  10   5   5   5   5

&&

.FWD WATCHES/WARNINGS/ADVISORIES...
NONE.

&&

30/05

Hazardous weather outlook, Apr 26, 1:55 PM CDT, 4 hours 48 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE FORT WORTH TX
155 PM CDT TUE APR 26 2011

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-271100-
MONTAGUE-COOKE-GRAYSON-FANNIN-LAMAR-YOUNG-JACK-WISE-DENTON-COLLIN-
HUNT-DELTA-HOPKINS-STEPHENS-PALO PINTO-PARKER-TARRANT-DALLAS-
ROCKWALL-KAUFMAN-VAN ZANDT-RAINS-EASTLAND-ERATH-HOOD-SOMERVELL-
JOHNSON-ELLIS-HENDERSON-COMANCHE-MILLS-HAMILTON-BOSQUE-HILL-NAVARRO-
FREESTONE-ANDERSON-LAMPASAS-CORYELL-BELL-MCLENNAN-FALLS-LIMESTONE-
LEON-MILAM-ROBERTSON-
155 PM CDT TUE APR 26 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

TORNADO WATCH IN EFFECT FOR MUCH OF NORTH TEXAS UNTIL 10 PM.

THUNDERSTORMS ARE LIKELY TODAY AND TONIGHT ALONG AND EAST OF A
LINE FROM LAMPASAS TO WEATHERFORD TO BOWIE. SEVERE THUNDERSTORMS
ARE LIKELY THIS AFTERNOON AND TONIGHT...ESPECIALLY ALONG AND EAST
OF THE INTERSTATE 35 CORRIDOR. LARGE HAIL...DAMAGING DOWNBURST
WINDS...AND TORNADOES WILL ALL BE POSSIBLE.

ELEVATED FIRE WEATHER CONDITIONS ARE EXPECTED THIS AFTERNOON
SOUTHWEST OF A CISCO TO MERIDIAN TO GATESVILLE LINE.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

A FEW THUNDERSTORMS MAY LINGER WEDNESDAY MORNING ACROSS THE FAR
NORTHEASTERN COUNTIES OF NORTH TEXAS.

ELEVATED FIRE WEATHER CONDITIONS ARE LIKELY WEDNESDAY AFTERNOON
ACROSS THE SOUTHWEST HALF OF NORTH TEXAS.

A CHANCE FOR THUNDERSTORMS RETURNS TO NORTH TEXAS SATURDAY
AFTERNOON THROUGH SUNDAY AFTERNOON.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS LIKELY ALONG AND EAST OF THE INTERSTATE 35
CORRIDOR TODAY AND TONIGHT. MORE LIMITED SPOTTER ACTIVATION MAY BE
REQUESTED WEST OF THE INTERSTATE 35 CORRIDOR.

In the hours before

Local storm report, Apr 26, 6:03 PM CDT, 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
603 PM CDT TUE APR 26 2011

..TIME..    ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE..    ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0603 PM     TORNADO          1 N PRIMROSE            32.44N  95.60W
04/26/2011                   VAN ZANDT          TX   AMATEUR RADIO

            MULTI VORTEX TORNADO

Local storm report, Apr 26, 6:18 PM CDT, 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
618 PM CDT TUE APR 26 2011

..TIME..    ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE..    ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0607 PM     TORNADO          MARTINS MILLS           32.43N  95.78W
04/26/2011                   VAN ZANDT          TX   LAW ENFORCEMENT

            CROSSING MARKET STREET IN MABANK

Local storm report, Apr 26, 6:22 PM CDT, 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
622 PM CDT TUE APR 26 2011

..TIME..    ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE..    ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0618 PM     TSTM WND DMG     EDOM                    32.37N  95.62W
04/26/2011                   VAN ZANDT          TX   AMATEUR RADIO

            TREES & POWER LINES ON BUILDINGS AND ON GROUND ON 314
            BETWEEN EDOM AND VAN

Local storm report, Apr 26, 6:28 PM CDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
628 PM CDT TUE APR 26 2011

..TIME..    ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE..    ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0620 PM     HAIL             TOOL                    32.27N  96.17W
04/26/2011  E1.00 INCH       HENDERSON          TX   PUBLIC

            QUARTER SIZE HAIL REPORTED IN TOOL BY PUBLIC.

Local storm report, Apr 26, 6:39 PM CDT, 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
639 PM CDT TUE APR 26 2011

..TIME..    ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE..    ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0610 PM     HAIL             CUMBY                   33.15N  95.85W
04/26/2011  E1.25 INCH       HOPKINS            TX   AMATEUR RADIO

Local storm report, Apr 26, 6:40 PM CDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
640 PM CDT TUE APR 26 2011

..TIME..    ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE..    ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0633 PM     HAIL             WACO                    31.55N  97.15W
04/26/2011  E1.75 INCH       MCLENNAN           TX   TRAINED SPOTTER

            MILE MARKER 342 ON INTERSTATE 35W NORTH OF WACO.

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, 4:00 PM CDT	Tornado Warning	FWD	Ellis, Henderson, Kaufman	45 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, 6:54 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.