Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Amarillo, TX

August 12, 2021Hutchinson County, Texas

NWS Amarillo, TX issued this special weather statement at Aug 12, 2021, 6:57 PM CDT for Hutchinson County, Texas. It was in force for 33 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 12, 2021, 6:57 PM CDT (23:57 UTC)
Expired: Aug 12, 2021, 7:30 PM CDT
In force: 33 min
Issued by: NWS Amarillo, TX
Hail: 0.25 in
Wind: 55

County Hutchinson County, TX

The radar

The Amarillo radar (KAMA), 41 km from the middle of the area, began a volume at 23:59 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 12:00Z, 12.0 hours before the alert went out and 41 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: 346 J/kg
Mixed-layer CIN: -166 J/kg
Mixed-layer LCL: 1810 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: 67 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

As transmitted.

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</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>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

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 12, 6:38 PM CDT, 19 minutes earlier.

Area forecast discussion, Aug 12, 6:38 PM CDT, 19 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</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>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Hazardous weather outlook, Aug 12, 2:35 PM CDT, 4 hours 22 minutes before

Hazardous Weather Outlook
National Weather Service Amarillo TX
235 PM CDT Thu Aug 12 2021

OKZ001>003-TXZ001>020-317-130745-
Cimarron-Texas-Beaver-Dallam-Sherman-Hansford-Ochiltree-Lipscomb-
Hartley-Moore-Hutchinson-Roberts-Hemphill-Oldham-Potter-Carson-
Gray-Wheeler-Deaf Smith-Randall-Armstrong-Donley-Collingsworth-
Palo Duro Canyon-
235 PM CDT Thu Aug 12 2021

This Hazardous Weather Outlook is for the Texas and Oklahoma
Panhandles.

.DAY ONE...This Afternoon and Tonight.

Thunderstorms are possible late this afternoon and tonight
favoring western portions of the combined Oklahoma and Texas
Panhandles. Localized flooding is possible due to heavy rain. The
probability for severe weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Thunderstorms will be possible Friday through Wednesday across
most of the Oklahoma and Texas Panhandles. Widespread severe
weather is not anticipated at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated at this time.

In the hours before

Special weather statement, Aug 12, 5:42 PM CDT, 1 hour 15 minutes before

Special Weather Statement
National Weather Service Amarillo TX
542 PM CDT Thu Aug 12 2021

TXZ017-317-122315-
Palo Duro Canyon TX-Randall TX-
542 PM CDT Thu Aug 12 2021

...Strong thunderstorms will impact portions of southern Randall
County through 615 PM CDT...

At 542 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 3 miles east of Happy to 12 miles southeast of
Buffalo Lake. Movement was north at 20 mph.

HAZARD...Wind gusts of 50 to 55 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Canyon, Umbarger, Buffalo Lake and Palo Duro Canyon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3475 10217 3496 10216 3498 10163 3475 10163
TIME...MOT...LOC 2242Z 180DEG 18KT 3474 10180 3474 10200

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...55 MPH

LFM

Special weather statement, Aug 12, 5:58 PM CDT, 59 minutes before

Special Weather Statement
National Weather Service Amarillo TX
558 PM CDT Thu Aug 12 2021

TXZ012-017-122330-
Potter TX-Randall TX-
558 PM CDT Thu Aug 12 2021

...A strong thunderstorm will impact portions of northeastern Randall
and southeastern Potter Counties through 630 PM CDT...

At 558 PM CDT, Doppler radar was tracking a strong thunderstorm near
Amarillo, moving north at 20 mph.

HAZARD...Wind gusts of 50 to 55 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Amarillo.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3513 10192 3544 10184 3538 10162 3506 10162
TIME...MOT...LOC 2258Z 199DEG 18KT 3517 10179

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

LFM

Special weather statement, Aug 12, 6:13 PM CDT, 44 minutes before

Special Weather Statement
National Weather Service Amarillo TX
613 PM CDT Thu Aug 12 2021

TXZ018-019-122345-
Donley TX-Armstrong TX-
613 PM CDT Thu Aug 12 2021

...A strong thunderstorm will impact portions of southeastern
Armstrong and southwestern Donley Counties through 645 PM CDT...

At 613 PM CDT, Doppler radar was tracking a strong thunderstorm 17
miles east of Vigo Park, or 19 miles north of Silverton, moving north
at 25 mph.

HAZARD...Wind gusts of 50 to 55 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

This storm will remain over mainly rural areas of southeastern
Armstrong and southwestern Donley Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3494 10145 3494 10095 3475 10093 3475 10144
TIME...MOT...LOC 2313Z 187DEG 21KT 3474 10121

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

LFM

Local storm report, Aug 12, 6:29 PM CDT, 28 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</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>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Local storm report, Aug 12, 6:54 PM CDT, 3 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</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>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Special weather statement, Aug 12, 6:57 PM CDT, 0 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</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>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 12, 3:16 PM CDT	Special Weather Statement	AMA	Hartley	29 min
Aug 12, 3:44 PM CDT	Special Weather Statement	AMA	Hartley	31 min
Aug 12, 4:03 PM CDT	Severe Thunderstorm Warning	AMA	Dallam	42 min
Aug 12, 4:14 PM CDT	Severe Thunderstorm Warning	AMA	Moore, Sherman	46 min
Aug 12, 4:41 PM CDT	Special Weather Statement	AMA	Armstrong	34 min
Aug 12, 4:48 PM CDT	Areal Flood Advisory	AMA	Hartley, Moore, Sherman	3 hr
Aug 12, 5:05 PM CDT	Special Weather Statement	AMA	Potter	25 min
Aug 12, 5:16 PM CDT	Special Weather Statement	AMA	Armstrong	29 min
Aug 12, 5:29 PM CDT	Special Weather Statement	AMA	Armstrong	31 min
Aug 12, 5:42 PM CDT	Special Weather Statement	AMA	Randall	33 min
Aug 12, 5:52 PM CDT	Severe Thunderstorm Warning	AMA	Randall	38 min
Aug 12, 5:58 PM CDT	Special Weather Statement	AMA	Potter	32 min
Aug 12, 6:13 PM CDT	Special Weather Statement	AMA	Armstrong	32 min
Aug 12, 6:24 PM CDT	Severe Thunderstorm Warning	AMA	Potter, Randall	46 min
Aug 12, 5:35 PM CDT	Special Weather Statement	AMA	Texas	25 min
Aug 12, 5:38 PM CDT	Severe Thunderstorm Warning	AMA	Texas	36 min

Nearby

Special Weather Statements in Texas, 2021 Every special weather statement in 2021

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.