Alert archive / Texas / Tornado Warnings in 2012

Tornado Warning 6, NWS Amarillo, TX

December 14, 2012Gray County, Texas

NWS Amarillo, TX issued this tornado warning at Dec 14, 2012, 4:54 PM CST for Gray County, Texas. It was in force for 26 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
Dec 14, 2012, 4:54 PM CST (22:54 UTC)
Expired
Dec 14, 2012, 5:20 PM CST
In force
26 min
Issued by
NWS Amarillo, TX
Area
Storm-based polygon

County Gray County, TX

The radar

The Amarillo radar (KAMA), 83 km from the middle of the area, began a volume at 22:56 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.

IssuedProductOfficeLasted
Dec 14, 2:28 PM CSTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 10.9 hours before the alert went out and 82 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 12:00Z on 2012-12-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 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 12:00Z on 2012-12-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 square meters per square second.1939587897117136156Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1556 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
64 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.

754 
WFUS54 KAMA 142254
TORAMA
TXC179-142330-
/O.NEW.KAMA.TO.W.0006.121214T2254Z-121214T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
454 PM CST FRI DEC 14 2012

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN GRAY COUNTY IN THE PANHANDLE OF TEXAS...

* UNTIL 530 PM CST

* AT 452 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS SEVERE
  STORM WAS LOCATED 7 MILES NORTHEAST OF GROOM...OR 21 MILES SOUTH OF
  PAMPA. DOPPLER RADAR SHOWED THIS SEVERE STORM MOVING NORTHEAST AT
  45 MPH.

* LOCATIONS IN THE PATH OF THIS DANGEROUS STORM INCLUDE...
  MCLEAN...             LEFORS...             LAKE MCCLELLAN...
  ALANREED...

THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 119 AND 145.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3558 10071 3518 10055 3518 10101 3529 10106
TIME...MOT...LOC 2254Z 224DEG 40KT 3527 10098

$$


JACKSON
3 follow-up statements
158 
WWUS54 KAMA 142302
SVSAMA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
502 PM CST FRI DEC 14 2012

TXC179-142330-
/O.CON.KAMA.TO.W.0006.000000T0000Z-121214T2330Z/
GRAY TX-
502 PM CST FRI DEC 14 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN GRAY COUNTY
UNTIL 530 PM CST...

AT 500 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
DANGEROUS STORM WAS LOCATED 7 MILES NORTH OF LAKE MCCLELLAN...OR 16
MILES SOUTH OF PAMPA...MOVING NORTHEAST AT 55 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THIS DANGEROUS STORM INCLUDE...
  MCLEAN...             LEFORS...             ALANREED...

THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 130 AND 145.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3538 10096 3558 10071 3518 10056 3518 10085
TIME...MOT...LOC 2302Z 228DEG 46KT 3533 10087

$$


JACKSON
698 
WWUS54 KAMA 142312
SVSAMA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
512 PM CST FRI DEC 14 2012

TXC179-142330-
/O.CON.KAMA.TO.W.0006.000000T0000Z-121214T2330Z/
GRAY TX-
512 PM CST FRI DEC 14 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR EASTERN GRAY COUNTY UNTIL
530 PM CST...

AT 509 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
DANGEROUS STORM WAS LOCATED 4 MILES SOUTHEAST OF LEFORS...OR 15 MILES
SOUTHEAST OF PAMPA...MOVING NORTHEAST AT 55 MPH. RADAR INDICATED 
ANOTHER SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR 
ALANREED MOVING NORTHEAST AT 55 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THIS DANGEROUS STORM INCLUDE...  
MCLEAN...             LEFORS...         ALANREED...

THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 136 AND 144.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3547 10085 3558 10071 3518 10056 3518 10072
TIME...MOT...LOC 2311Z 232DEG 46KT 3540 10075

$$


JACKSON
731 
WWUS54 KAMA 142320
SVSAMA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
520 PM CST FRI DEC 14 2012

TXC179-142330-
/O.CAN.KAMA.TO.W.0006.000000T0000Z-121214T2330Z/
GRAY TX-
520 PM CST FRI DEC 14 2012

...THE TORNADO WARNING FOR EASTERN GRAY COUNTY IS CANCELLED...

THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
BEEN CANCELLED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN 
EFFECT FOR THE AREA 615 PM CST.

LAT...LON 3547 10085 3558 10071 3518 10056 3518 10072
TIME...MOT...LOC 2320Z 232DEG 46KT 3547 10064

$$


JACKSON

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 14, 6:30 AM CSTWind AdvisoryAMADeaf Smith, Oldham, Potter, Randall12 hr
Dec 14, 2:17 PM CSTSpecial Weather StatementAMADeaf Smith, Oldham28 min
Dec 14, 2:32 PM CSTSpecial Weather StatementAMADeaf Smith, Oldham28 min
Dec 14, 2:40 PM CSTSpecial Weather StatementAMADeaf Smith, Oldham35 min
Dec 14, 2:54 PM CSTSpecial Weather StatementAMAOldham36 min
Dec 14, 3:05 PM CSTSevere Thunderstorm WarningAMADeaf Smith, Oldham55 min
Dec 14, 3:25 PM CSTSevere Thunderstorm WarningAMAMoore, Potter, Randall95 min
Dec 14, 4:03 PM CSTSevere Thunderstorm WarningAMAArmstrong, Carson, Hutchinson73 min
Dec 14, 4:12 PM CSTAreal Flood AdvisoryAMAPotter, Randall108 min
Dec 14, 4:19 PM CSTTornado WarningAMAArmstrong, Carson26 min
Dec 14, 4:42 PM CSTSpecial Weather StatementAMADonley, Gray, Roberts33 min
Dec 14, 4:48 PM CSTSevere Thunderstorm WarningAMADonley, Gray52 min
Dec 14, 4:53 PM CSTTornado WarningAMADonley27 min
Dec 14, 5:13 PM CSTSevere Thunderstorm WarningAMACollingsworth, Wheeler68 min
Dec 14, 5:39 PM CSTSpecial Weather StatementAMAHemphill, Lipscomb36 min

Nearby

Tornado Warnings in Texas, 2012Every tornado warning in 2012Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.