Alert archive / Texas / Tornado Warnings in 2004

Tornado Warning 12, NWS Amarillo, TX

June 21, 2004Oldham County, Texas

NWS Amarillo, TX issued this tornado warning at Jun 21, 2004, 8:50 PM CDT for Oldham County, Texas. It was in force for 40 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: Jun 21, 2004, 8:50 PM CDT (01:50 UTC)
Expired: Jun 21, 2004, 9:30 PM CDT
In force: 40 min
Issued by: NWS Amarillo, TX
Area: Counties, with a storm outline in the text

County Oldham County, TX

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 21, 3:45 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 21, 8:05 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 1.8 hours before the alert went out and 84 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: 2119 J/kg
Mixed-layer CIN: -48 J/kg
Mixed-layer LCL: 1225 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 62 m²/s²
0-3 km storm-relative helicity: 115 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 4.7

Open this sounding in Storm Lab

The text

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

676 
WFUS54 KAMA 220150
TORAMA
TXC359-220230-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
850 PM CDT MON JUN 21 2004

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN OLDHAM COUNTY IN THE PANHANDLE OF TEXAS

* UNTIL 930 PM CDT

* AT 850 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE MOST DANGEROUS
  PORTION OF THE STORM WAS LOCATED 12 MILES WEST OF BOYS RANCH...OR
  ABOUT 23 MILES NORTH OF VEGA...MOVING EAST AT 35 MPH.

* SOME LOCATIONS AFFECTED BY THE STORM INCLUDE...
  BOYS RANCH

TORNADOES AT NIGHT ARE ESPECIALLY DANGEROUS. DO NOT WAIT UNTIL YOU
SEE OR HEAR THE TORNADO-IT MAY BE TOO LATE. TAKE COVER NOW

A TORNADO MAY FORM AT ANY TIME-TAKE COVER NOW ABANDON MOBILE HOMES
AND VEHICLES FOR MORE SUBSTANTIAL SHELTER. AVOID WINDOWS.

LAT...LON 3562 10280 3548 10279 3533 10218 3561 10218

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 7:27 PM CDT	Tornado Warning	AMA	Randall	63 min
Jun 21, 7:30 PM CDT	Tornado Warning	AMA	Potter	60 min
Jun 21, 7:43 PM CDT	Severe Thunderstorm Warning	AMA	Moore	62 min
Jun 21, 7:48 PM CDT	Severe Thunderstorm Warning	AMA	Hartley	57 min
Jun 21, 8:01 PM CDT	Flash Flood Warning	AMA	Potter, Randall	3 hr
Jun 21, 8:27 PM CDT	Tornado Warning	AMA	Randall	63 min
Jun 21, 8:33 PM CDT	Severe Thunderstorm Warning	AMA	Hutchinson	87 min
Jun 21, 8:36 PM CDT	Severe Thunderstorm Warning	AMA	Oldham	39 min
Jun 21, 8:51 PM CDT	Severe Thunderstorm Warning	AMA	Sherman	84 min
Jun 21, 8:53 PM CDT	Severe Thunderstorm Warning	AMA	Moore	97 min
Jun 21, 9:00 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong	60 min
Jun 21, 9:18 PM CDT	Severe Thunderstorm Warning	AMA	Potter	42 min
Jun 21, 9:33 PM CDT	Tornado Warning	AMA	Potter	27 min
Jun 21, 9:36 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb	54 min
Jun 21, 9:47 PM CDT	Severe Thunderstorm Warning	AMA	Carson	73 min
Jun 21, 9:59 PM CDT	Severe Thunderstorm Warning	AMA	Potter	31 min
Jun 21, 9:59 PM CDT	Severe Thunderstorm Warning	AMA	Gray	91 min
Jun 21, 10:13 PM CDT	Flash Flood Warning	AMA	Hartley	3 hr
Jun 21, 10:14 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong	46 min

Nearby

Tornado Warnings in Texas, 2004 Every tornado warning in 2004 Tornadoes in 2004

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.