Alert archive / Texas / Special Weather Statements in 2015

Special Weather Statement, NWS Amarillo, TX

August 1, 2015Randall County, Texas

NWS Amarillo, TX issued this special weather statement at Aug 1, 2015, 9:45 PM CDT for Randall County, Texas. It was in force for 45 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
Aug 1, 2015, 9:45 PM CDT (02:45 UTC)
Expired
Aug 1, 2015, 10:30 PM CDT
In force
45 min
Issued by
NWS Amarillo, TX

County Randall County, TX

The radar

The Amarillo radar (KAMA), 37 km from the middle of the area, began a volume at 02:46 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

Midland Regional, TX (KMAF), launched 00:00Z, 2.8 hours before the alert went out and 335 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, Midland Regional, TX at 00:00Z on 2015-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 603 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, Midland Regional, TX at 00:00Z on 2015-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 square meters per square second.1939Sfc1 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
603 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
2160 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
120 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.

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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 Aug 1, 6:37 PM CDT, 3 hours 8 minutes earlier.

Area forecast discussion, Aug 1, 6:37 PM CDT, 3 hours 8 minutes before
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  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
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</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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Hazardous weather outlook, Aug 1, 3:20 PM CDT, 6 hours 25 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AMARILLO TX
320 PM CDT SAT AUG 1 2015

OKZ001>003-TXZ001>020-021115-
CIMARRON-TEXAS-BEAVER-DALLAM-SHERMAN-HANSFORD-OCHILTREE-LIPSCOMB-
HARTLEY-MOORE-HUTCHINSON-ROBERTS-HEMPHILL-OLDHAM-POTTER-CARSON-
GRAY-WHEELER-DEAF SMITH-RANDALL-ARMSTRONG-DONLEY-COLLINGSWORTH-
320 PM CDT SAT AUG 1 2015

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

.DAY ONE...THROUGH TONIGHT.

ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED ACROSS THE OKLAHOMA
AND TEXAS PANHANDLES. MANY OF THESE STORMS WILL BE CAPABLE OF
PRODUCING HEAVY RAINFALL...WHICH MAY RESULT IN LOCALIZED FLOODING OR
FLASH FLOODING. ALSO...SOME OF THE STRONGER STORMS COULD PRODUCE
BRIEF GUSTY WINDS TO AROUND 50 MPH.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

THUNDERSTORMS WILL BE POSSIBLE ACROSS MOST OF THE OKLAHOMA AND TEXAS PANHANDLES
THROUGH TUESDAY. MANY OF THESE STORMS WILL BE CAPABLE OF PRODUCING HEAVY
RAINFALL...WHICH MAY LEAD TO FLOODING OR FLASH FLOODING. SOME OF THE
STRONGER STORMS COULD PRODUCE GUSTY WINDS TO AROUND 50 MPH.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME. OBSERVERS ARE
REQUESTED TO RELAY ANY RAINFALL AND FLOODING REPORTS TO THE NATIONAL
WEATHER SERVICE IN AMARILLO.

COCKRELL

In the hours before

Special weather statement, Aug 1, 9:22 PM CDT, 23 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
922 PM CDT SAT AUG 1 2015

TXZ016-020300-
DEAF SMITH TX-
922 PM CDT SAT AUG 1 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN DEAF SMITH COUNTY
UNTIL 1000 PM CDT...

AT 919 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 7 MILES NORTHWEST OF HEREFORD...MOVING EAST AT 15
MPH.

HAIL UP TO ONE HALF INCH IN DIAMETER AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN.

* LOCATIONS IMPACTED INCLUDE...
  HEREFORD...           DAWN...

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

TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED
ROADWAY...TURN AROUND DONT DROWN.

LAT...LON 3502 10217 3475 10218 3475 10257 3496 10257
TIME...MOT...LOC 0222Z 252DEG 15KT 3488 10250

ANDRADE
Special weather statement, Aug 1, 9:45 PM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
945 PM CDT SAT AUG 1 2015

TXZ017-020330-
RANDALL TX-
945 PM CDT SAT AUG 1 2015

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL RANDALL COUNTY UNTIL 1030
PM CDT...

AT 943 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR UMBARGER...OR 10 MILES WEST OF
CANYON...MOVING EAST NORTHEAST AT 15 MPH.

HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN.

* LOCATIONS IMPACTED INCLUDE...
  CANYON...             UMBARGER...           BUFFALO LAKE...
  TIMBERCREEK CANYON...

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

TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED
ROADWAY...TURN AROUND DONT DROWN.

LAT...LON 3506 10180 3480 10178 3481 10216 3505 10216
TIME...MOT...LOC 0245Z 245DEG 8KT 3494 10209

ANDRADE

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 1, 9:22 PM CDTSpecial Weather StatementAMADeaf Smith38 min
Aug 1, 10:21 PM CDTAreal Flood AdvisoryAMARandall3 hr
Aug 1, 11:23 PM CDTSpecial Weather StatementAMAArmstrong52 min
Aug 2, 12:28 AM CDTSpecial Weather StatementAMAHansford47 min
Aug 2, 12:53 AM CDTSpecial Weather StatementAMAGray52 min
Aug 2, 1:04 AM CDTSevere Thunderstorm WarningAMAGray, Wheeler56 min
Aug 2, 1:14 AM CDTSpecial Weather StatementAMAHansford61 min
Aug 2, 1:49 AM CDTAreal Flood AdvisoryAMAHansford3 hr
Aug 2, 1:52 AM CDTSpecial Weather StatementAMAWheeler53 min
Aug 2, 1:58 AM CDTSpecial Weather StatementAMAHansford62 min
Aug 2, 2:57 AM CDTSpecial Weather StatementAMAHansford63 min
Aug 2, 4:57 AM CDTAreal Flood AdvisoryAMAHansford, Hutchinson, Ochiltree3 hr
Aug 2, 5:56 PM CDTSpecial Weather StatementAMALipscomb49 min
Aug 2, 6:38 PM CDTSpecial Weather StatementAMAMoore67 min
Aug 2, 6:43 PM CDTSevere Thunderstorm WarningAMAMoore17 min
Aug 2, 6:47 PM CDTSpecial Weather StatementAMAHemphill, Lipscomb58 min

Nearby

Special Weather Statements in Texas, 2015Every special weather statement in 2015

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.