Alert archive / Texas / Tornado Watches in 2005

Tornado Watch 470

June 12, 200510 counties in Texas

The Storm Prediction Center issued this tornado watch at Jun 12, 2005, 7:20 PM CDT for 10 counties in Texas. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued: Jun 12, 2005, 7:20 PM CDT (00:20 UTC)
Expired: Jun 12, 2005, 11:00 PM CDT
In force: 4 hr
Issued by: the Storm Prediction Center

Counties Callahan County, TX, Coke County, TX, Eastland County, TX, Fisher County, TX, Jones County, TX, Nolan County, TX, Shackelford County, TX, Stephens County, TX, Taylor County, TX, Young County, TX

The radar

The Dyess AFB radar (KDYX), 54 km from the middle of the area, began a volume at 00:22 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.

Warnings issued inside it

2 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Jun 12, 7:25 PM CDT	Tornado Warning	SJT	Fisher	50 min
Jun 12, 8:14 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Jones	48 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 0.3 hours before the alert went out and 237 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: 3728 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 22 m²/s²
0-3 km storm-relative helicity: 33 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.

000 
WWUS20 KWNS 130017
SEL0  
SPC WW 130017
TXZ000-130400-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 470
NWS STORM PREDICTION CENTER NORMAN OK
720 PM CDT SUN JUN 12 2005

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       WESTERN NORTH TEXAS

EFFECTIVE THIS SUNDAY EVENING FROM 720 PM UNTIL 1100 PM CDT.

TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 40 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 65 MILES WEST OF ABILENE TEXAS TO
80 MILES EAST NORTHEAST OF ABILENE TEXAS.  FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU0).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

OTHER WATCH INFORMATION...CONTINUE...WW 464...WW 465...WW 467...WW
468...WW 469...

DISCUSSION...INTENSE SUPERCELL WILL REMAIN IN VERY FAVORABLE
INSTABILITY AND SHEAR AS IT MOVES ESEWD ACROSS WW THIS EVENING.  IN
ADDITION TO A THREAT OF TORNADOES...VERY LARGE HAIL AND SIGNIFICANT
STRAIGHT LINE WINDS MAY ACCOMPANY SUPERCELLS FOR SEVERAL MORE HOURS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600.
MEAN STORM MOTION VECTOR 28025.


...EVANS

325,1004 332,0982 321,0982 315,1004

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 12, 9:32 PM CDT	Mesoscale Discussion	SPC	Haskell, Jones, Shackelford	28 min
Jun 13, 4:20 PM CDT	Severe Thunderstorm Watch	SPC	Archer, Baylor, Callahan, Clay, Cooke, Foard and 14 more	7 hr
Jun 13, 5:41 PM CDT	Mesoscale Discussion	SPC	Archer, Baylor, Clay, Knox, Montague, Throckmorton and 2 more	2 hr

Nearby

Tornado Watches in Texas, 2005 Every tornado watch in 2005

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.