Alert archive / Texas / Tornado Warnings in 2002

Tornado Warning 1, NWS Amarillo, TX

April 13, 2002Oldham County, Texas

NWS Amarillo, TX issued this tornado warning at Apr 13, 2002, 2:04 AM CDT for Oldham County, Texas. It was in force for 41 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 13, 2002, 2:04 AM CDT (07:04 UTC)
Expired: Apr 13, 2002, 2:45 AM CDT
In force: 41 min
Issued by: NWS Amarillo, TX
Area: Counties, with a storm outline in the text

County Oldham County, TX

The radar

The Amarillo radar (KAMA), 66 km from the middle of the area, began a volume at 07:06 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.

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 12, 11:30 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 7.1 hours before the alert went out and 67 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: 880 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 1630 m above ground
0-6 km bulk shear: 69 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: -51 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 
WFUS54 KAMA 130704
TORAMA
TXC359-130745-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
203 AM CDT SAT APR 13 2002

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN OLDHAM COUNTY IN THE TEXAS PANHANDLE

* UNTIL 245 AM CDT

* AT 201 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE MOST DANGEROUS
  PORTION OF THE STORM WAS LOCATED 3 MILES NORTHWEST OF VEGA...MOVING
  EAST AT 25 MPH.

* SOME LOCATIONS AFFECTED BY THE STORM INCLUDE...
  VEGA...WILDORADO AND BOYS RANCH.

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

LAT...LON 3550 10254 3523 10257 3519 10219 3554 10219

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 12, 10:38 PM CDT	Severe Thunderstorm Warning	AMA	Hartley	52 min
Apr 12, 11:45 PM CDT	Severe Thunderstorm Warning	AMA	Oldham	60 min
Apr 13, 12:01 AM CDT	Severe Thunderstorm Warning	AMA	Hartley	29 min
Apr 13, 12:44 AM CDT	Severe Thunderstorm Warning	AMA	Potter	46 min
Apr 13, 1:21 AM CDT	Severe Thunderstorm Warning	AMA	Oldham	54 min
Apr 13, 2:36 AM CDT	Severe Thunderstorm Warning	AMA	Potter, Randall	54 min
Apr 13, 3:17 AM CDT	Tornado Warning	AMA	Potter, Randall	28 min
Apr 13, 3:41 AM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Potter, Randall	34 min
Apr 13, 3:49 AM CDT	Severe Thunderstorm Warning	AMA	Oldham	26 min
Apr 13, 4:17 AM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Randall	58 min
Apr 13, 5:06 AM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith	44 min

Nearby

Tornado Warnings in Texas, 2002 Every tornado warning in 2002 Tornadoes in 2002

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.