Alert archive / Texas / Tornado Warnings in 2004

Tornado Warning 10, NWS Amarillo, TX

June 21, 2004Potter County, Texas

NWS Amarillo, TX issued this tornado warning at Jun 21, 2004, 7:30 PM CDT for Potter County, Texas. It was in force for 60 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, 7:30 PM CDT (00:30 UTC)
Expired
Jun 21, 2004, 8:30 PM CDT
In force
60 min
Issued by
NWS Amarillo, TX
Area
Counties, with a storm outline in the text

County Potter County, TX

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 21, 3:45 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 0.5 hours before the alert went out and 28 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-pSkew-T log-p diagram, Amarillo Airport, TX at 00:00Z on 2004-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2119 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Amarillo Airport, TX at 00:00Z on 2004-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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.

511 
WFUS54 KAMA 220030
TORAMA
TXC375-220130-

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

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* TORNADO WARNING FOR...
  POTTER COUNTY IN THE PANHANDLE OF TEXAS

* UNTIL 830 PM CDT

* AT 730 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE MOST DANGEROUS
  PORTION OF THE STORM WAS LOCATED 10 MILES WEST OF AMARILLO...MOVING
  SOUTH AT 10 MPH.

* SOME LOCATIONS AFFECTED BY THE STORM INCLUDE...
  BUSHLAND...AND INTERSTATE 40 WEST OF AMARILLO.

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

LAT...LON 3562 10163 3562 10215 3520 10214 3520 10164

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 21, 7:27 PM CDTTornado WarningAMARandall63 min
Jun 21, 7:43 PM CDTSevere Thunderstorm WarningAMAMoore62 min
Jun 21, 7:48 PM CDTSevere Thunderstorm WarningAMAHartley57 min
Jun 21, 8:01 PM CDTFlash Flood WarningAMAPotter, Randall3 hr
Jun 21, 8:27 PM CDTTornado WarningAMARandall63 min
Jun 21, 8:33 PM CDTSevere Thunderstorm WarningAMAHutchinson87 min
Jun 21, 8:36 PM CDTSevere Thunderstorm WarningAMAOldham39 min
Jun 21, 8:50 PM CDTTornado WarningAMAOldham40 min
Jun 21, 8:51 PM CDTSevere Thunderstorm WarningAMASherman84 min
Jun 21, 8:53 PM CDTSevere Thunderstorm WarningAMAMoore97 min
Jun 21, 9:00 PM CDTSevere Thunderstorm WarningAMAArmstrong60 min
Jun 21, 9:18 PM CDTSevere Thunderstorm WarningAMAPotter42 min
Jun 21, 9:33 PM CDTTornado WarningAMAPotter27 min
Jun 21, 9:36 PM CDTSevere Thunderstorm WarningAMALipscomb54 min
Jun 21, 9:47 PM CDTSevere Thunderstorm WarningAMACarson73 min
Jun 21, 9:59 PM CDTSevere Thunderstorm WarningAMAPotter31 min
Jun 21, 9:59 PM CDTSevere Thunderstorm WarningAMAGray91 min
Jun 21, 10:13 PM CDTFlash Flood WarningAMAHartley3 hr
Jun 21, 10:14 PM CDTSevere Thunderstorm WarningAMAArmstrong46 min

Nearby

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