Alert archive / Texas / Tornado Warnings in 2012

Tornado Warning 20, NWS Fort Worth, TX

May 4, 2012Hood County, Texas

NWS Fort Worth, TX issued this tornado warning at May 4, 2012, 7:09 PM CDT for Hood County, Texas. It was in force for 22 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: May 4, 2012, 7:09 PM CDT (00:09 UTC)
Expired: May 4, 2012, 7:31 PM CDT
In force: 22 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon

County Hood County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 54 km from the middle of the area, began a volume at 00:12 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

Time	Report	Where	Remark
May 4, 7:15 PM CDT	HAIL 1.75	2 E Lipan, TX
May 4, 7:18 PM CDT	TSTM WND DMG	Lipan, TX	POWER POLES DOWNED IN LIPAN

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.

Issued	Product	Office	Lasted
May 4, 3:49 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 0.2 hours before the alert went out and 66 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: 2627 J/kg
Mixed-layer CIN: -48 J/kg
Mixed-layer LCL: 1899 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 117 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 7.1

Open this sounding in Storm Lab

The text

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

062 
WFUS54 KFWD 050009
TORFWD
TXC221-050100-
/O.NEW.KFWD.TO.W.0020.120505T0009Z-120505T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
709 PM CDT FRI MAY 4 2012

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

* TORNADO WARNING FOR...
  HOOD COUNTY IN NORTH CENTRAL TEXAS...

* UNTIL 800 PM CDT

* AT 709 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 4 MILES EAST OF
  LIPAN...MOVING EAST AT 15 MPH.

* THE TORNADO WILL BE NEAR...
  OAK TRAIL SHORES AROUND 740 PM CDT...
  GRANBURY AROUND 755 PM CDT...

THIS WILL IMPACT I-20 BETWEEN MILE MARKERS 384 AND 386.

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.

&&

LAT...LON 3256 9807 3256 9771 3254 9761 3234 9762
      3232 9773 3244 9804 3251 9807
TIME...MOT...LOC 0009Z 291DEG 13KT 3252 9797

$$

2 follow-up statements

872 
WWUS54 KFWD 050017
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
717 PM CDT FRI MAY 4 2012

TXC221-050100-
/O.CON.KFWD.TO.W.0020.000000T0000Z-120505T0100Z/
HOOD TX-
717 PM CDT FRI MAY 4 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR HOOD
COUNTY...

AT 717 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS TORNADO WAS 
LOCATED 7 MILES WEST OF OAK TRAIL SHORES...MOVING EAST AT 15 MPH. IN 
ADDITION TO THE POSSIBLE TORNADO...VERY STRONG STRAIGHT-LINE WINDS 
ARE LIKELY. SEEK SHELTER NOW! 

THE TORNADO WILL BE NEAR...
  OAK TRAIL SHORES AROUND 740 PM CDT...
  GRANBURY AROUND 755 PM CDT...

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.

&&

LAT...LON 3255 9799 3256 9771 3254 9761 3252 9761
      3234 9762 3232 9773 3244 9797 3247 9801
TIME...MOT...LOC 0017Z 291DEG 13KT 3251 9794

$$

925 
WWUS54 KFWD 050031
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
731 PM CDT FRI MAY 4 2012

TXC221-050042-
/O.CAN.KFWD.TO.W.0020.000000T0000Z-120505T0100Z/
HOOD TX-
731 PM CDT FRI MAY 4 2012

...THE TORNADO WARNING FOR NORTHEASTERN HOOD COUNTY IS CANCELLED...

AT 732 PM CDT THE SEVERE THUNDERSTORM THAT PROMPTED THE TORNADO
WARNING WEAKENED AND WAS NO LONGER CAPABLE OF PRODUCING A TORNADO.
THE TORNADO WARNING WAS CANCELLED.

LAT...LON 3255 9799 3256 9771 3254 9761 3252 9761
      3234 9762 3232 9773 3244 9797 3247 9801
TIME...MOT...LOC 0032Z 291DEG 13KT 3249 9788

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 4, 7:11 PM CDT	Severe Thunderstorm Warning	FWD	Eastland	38 min
May 4, 7:37 PM CDT	Special Weather Statement	FWD	Montague	23 min
May 4, 7:41 PM CDT	Special Weather Statement	FWD	Parker	34 min
May 4, 7:44 PM CDT	Severe Thunderstorm Warning	FWD	Palo Pinto, Parker	19 min
May 4, 7:54 PM CDT	Severe Thunderstorm Warning	FWD	Hood, Johnson, Parker, Somervell, Tarrant	66 min
May 4, 8:00 PM CDT	Severe Thunderstorm Warning	FWD	Comanche	60 min
May 4, 8:02 PM CDT	Severe Thunderstorm Warning	FWD	Montague	55 min
May 4, 8:25 PM CDT	Severe Thunderstorm Warning	FWD	Erath	50 min
May 4, 8:33 PM CDT	Severe Thunderstorm Warning	FWD	Bosque, Ellis, Hill, Johnson	57 min
May 4, 8:38 PM CDT	Severe Thunderstorm Warning	FWD	Cooke	67 min
May 4, 9:02 PM CDT	Severe Thunderstorm Warning	FWD	Comanche, Mills	58 min
May 4, 9:04 PM CDT	Severe Thunderstorm Warning	FWD	Ellis	26 min
May 4, 9:07 PM CDT	Severe Thunderstorm Warning	FWD	Collin, Cooke, Denton, Grayson	52 min
May 4, 9:12 PM CDT	Severe Thunderstorm Warning	FWD	Bosque, Hamilton	63 min
May 4, 9:26 PM CDT	Special Weather Statement	FWD	Johnson	34 min
May 4, 9:32 PM CDT	Severe Thunderstorm Warning	FWD	Ellis	31 min
May 4, 9:33 PM CDT	Tornado Warning	FWD	Mills	27 min
May 4, 10:02 PM CDT	Severe Thunderstorm Warning	FWD	Hamilton	28 min
May 4, 10:04 PM CDT	Special Weather Statement	FWD	Collin, Denton, Grayson	26 min
May 4, 10:20 PM CDT	High Wind Warning	FWD	Ellis, Johnson	40 min
May 4, 10:22 PM CDT	Special Weather Statement	FWD	Rockwall	23 min
May 4, 10:24 PM CDT	Special Weather Statement	FWD	McLennan	36 min
May 4, 10:33 PM CDT	Severe Thunderstorm Warning	FWD	Coryell, Hamilton	57 min
May 4, 11:14 PM CDT	Severe Thunderstorm Warning	FWD	Freestone, Navarro	38 min
May 4, 11:17 PM CDT	Special Weather Statement	FWD	Lamar	28 min
May 5, 12:52 AM CDT	Special Weather Statement	FWD	Bell	23 min
May 5, 12:59 AM CDT	Special Weather Statement	FWD	Henderson, Navarro	31 min

Nearby

Tornado Warnings in Texas, 2012 Every tornado warning in 2012 Tornadoes in 2012

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.