Alert archive / Texas / Special Weather Statements in 2012

Special Weather Statement, NWS Amarillo, TX

October 13, 2012Oldham County, Texas

NWS Amarillo, TX issued this special weather statement at Oct 13, 2012, 2:17 AM CDT for Oldham County, Texas. It was in force for 58 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
Oct 13, 2012, 2:17 AM CDT (07:17 UTC)
Expired
Oct 13, 2012, 3:15 AM CDT
In force
58 min
Issued by
NWS Amarillo, TX

County Oldham County, TX

The radar

The Amarillo radar (KAMA), 90 km from the middle of the area, began a volume at 07:19 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 nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 7.3 hours before the alert went out and 90 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 2012-10-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1574 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Amarillo Airport, TX at 00:00Z on 2012-10-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 219 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
1574 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
603 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
219 m²/s²
0-3 km storm-relative helicity
284 m²/s²
Significant tornado parameter
0.0
Supercell composite
11.7

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Amarillo, TX wrote its last area forecast discussion before this special weather statement went out at Oct 13, 12:09 AM CDT, 2 hours 8 minutes earlier.

Area forecast discussion, Oct 13, 12:09 AM CDT, 2 hours 8 minutes before
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Hazardous weather outlook, Oct 12, 10:30 PM CDT, 3 hours 47 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE AMARILLO TX
1030 PM CDT FRI OCT 12 2012

OKZ001>003-TXZ001>020-131100-
CIMARRON-TEXAS-BEAVER-DALLAM-SHERMAN-HANSFORD-OCHILTREE-LIPSCOMB-
HARTLEY-MOORE-HUTCHINSON-ROBERTS-HEMPHILL-OLDHAM-POTTER-CARSON-
GRAY-WHEELER-DEAF SMITH-RANDALL-ARMSTRONG-DONLEY-COLLINGSWORTH-
1030 PM CDT FRI OCT 12 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE TEXAS AND OKLAHOMA
PANHANDLES.

.DAY ONE...TONIGHT.

THUNDERSTORMS ARE EXPECTED THROUGH TONIGHT ACROSS THE OKLAHOMA AND TEXAS
PANHANDLES. A FEW STORMS MAY BECOME SEVERE...WITH LARGE HAIL AND DAMAGING
WINDS THE PRIMARY HAZARDS.

IN ADDITION...CAUTION IS ADVISED ON AREA LAKES THROUGH TONIGHT DUE TO BREEZY
SOUTHEAST WINDS OF 15 TO 25 MPH WITH SOME HIGHER GUSTS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER GROUPS AND EMERGENCY MANAGEMENT OFFICIALS ACROSS THE OKLAHOMA
AND TEXAS PANHANDLES SHOULD REMAIN ALERT AND BE READY FOR POSSIBLE
LIMITED ACTIVATION TONIGHT.

ANDRADE

In the hours before

Special weather statement, Oct 12, 11:16 PM CDT, 3 hours 1 minute before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
1116 PM CDT FRI OCT 12 2012

OKZ001-130445-
CIMARRON OK-
1116 PM CDT FRI OCT 12 2012

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN CIMARRON COUNTY
UNTIL 1145 PM CDT...

AT 1116 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 10 MILES NORTH OF BOISE CITY...MOVING NORTHEAST
AT 45 MPH.

HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH FREQUENT DANGEROUS LIGHTNING.

* LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF NORTHEASTERN CIMARRON COUNTY.

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.

LAT...LON 3700 10206 3674 10244 3688 10259 3700 10243
TIME...MOT...LOC 0416Z 228DEG 39KT 3687 10243

14
Special weather statement, Oct 12, 11:41 PM CDT, 2 hours 36 minutes before
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Special weather statement, Oct 13, 12:30 AM CDT, 1 hour 47 minutes before
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Special weather statement, Oct 13, 1:29 AM CDT, 48 minutes before
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Special weather statement, Oct 13, 1:33 AM CDT, 44 minutes before
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Special weather statement, Oct 13, 2:17 AM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Oct 12, 7:06 PM CDTSpecial Weather StatementAMAArmstrong39 min
Oct 12, 7:27 PM CDTSevere Thunderstorm WarningAMAArmstrong, Randall33 min
Oct 12, 7:54 PM CDTSpecial Weather StatementAMACarson36 min
Oct 12, 7:59 PM CDTSpecial Weather StatementAMAArmstrong31 min
Oct 12, 8:21 PM CDTSevere Thunderstorm WarningAMACarson, Gray, Hutchinson, Roberts39 min
Oct 12, 8:55 PM CDTSevere Thunderstorm WarningAMAHemphill, Lipscomb, Ochiltree, Roberts35 min
Oct 12, 8:59 PM CDTSpecial Weather StatementAMACarson31 min
Oct 12, 9:31 PM CDTSpecial Weather StatementAMAArmstrong29 min
Oct 12, 9:33 PM CDTSpecial Weather StatementAMALipscomb27 min
Oct 12, 11:11 PM CDTSpecial Weather StatementAMADallam34 min
Oct 13, 12:30 AM CDTSpecial Weather StatementAMADallam, Hartley, Moore, Oldham, Potter, Sherman60 min
Oct 13, 1:29 AM CDTSpecial Weather StatementAMADallam, Sherman61 min
Oct 13, 1:33 AM CDTSpecial Weather StatementAMAOldham42 min
Oct 13, 3:07 AM CDTSpecial Weather StatementAMAMoore38 min
Oct 13, 3:43 AM CDTSpecial Weather StatementAMACarson, Hutchinson, Moore, Ochiltree, Potter47 min
Oct 12, 10:01 PM CDTSpecial Weather StatementAMACimarron29 min
Oct 12, 10:33 PM CDTSpecial Weather StatementAMACimarron27 min
Oct 12, 11:16 PM CDTSpecial Weather StatementAMACimarron29 min
Oct 12, 11:24 PM CDTSevere Thunderstorm WarningAMACimarron36 min
Oct 12, 11:41 PM CDTSpecial Weather StatementAMACimarron64 min
Oct 13, 2:28 AM CDTSpecial Weather StatementAMATexas32 min

Nearby

Special Weather Statements in Texas, 2012Every special weather statement 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.