Alert archive / Texas / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 340, NWS Amarillo, TX

August 11, 20254 counties in Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Aug 11, 2025, 7:09 PM CDT for 4 counties in Texas. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 11, 2025, 7:09 PM CDT (00:09 UTC)
Expired: Aug 11, 2025, 7:38 PM CDT
In force: 29 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Deaf Smith County, TX, Oldham County, TX, Potter County, TX, Randall County, TX

The radar

The Amarillo radar (KAMA), 49 km from the middle of the area, began a volume at 00:13 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, 0.2 hours before the alert went out and 50 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: 1373 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 1880 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 120 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 4.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Aug 11, 6:36 PM CDT, 33 minutes earlier.

Area forecast discussion, Aug 11, 6:36 PM CDT, 33 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 11, 2:10 PM CDT, 4 hours 59 minutes before

Hazardous Weather Outlook
National Weather Service Amarillo TX
210 PM CDT Mon Aug 11 2025

OKZ001>003-TXZ001>020-317-120715-
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-
210 PM CDT Mon Aug 11 2025

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

.DAY ONE...Through Tonight.

Thunderstorms are possible across the Texas and Oklahoma
Panhandles during the afternoon and evening hours today. A few
storms may become severe, with damaging winds and large hail being
the primary factors. Additionally, storms may produce heavy rain
that may lead to localized flash flooding.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Thunderstorms will be possible on Tuesday and again this upcoming
weekend across portions of the Panhandles.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated at this time.

In the hours before

Special weather statement, Aug 11, 5:17 PM CDT, 1 hour 52 minutes before

Special Weather Statement
National Weather Service Amarillo TX
517 PM CDT Mon Aug 11 2025

TXZ007-012-112245-
Potter TX-Moore TX-
517 PM CDT Mon Aug 11 2025

...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN POTTER AND SOUTHERN
MOORE COUNTIES THROUGH 545 PM CDT...

At 516 PM CDT, Doppler radar was tracking a strong thunderstorm 6
miles northeast of Valley De Oro, or 23 miles south of Dumas, moving
northeast at 10 mph.

HAZARD...Wind gusts of 50 to 55 mph and nickel size hail.

SOURCE...Radar indicated.

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

This storm will remain over mainly rural areas of northwestern Potter
and southern Moore Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3544 10207 3553 10216 3555 10216 3568 10207
      3558 10193 3544 10182
TIME...MOT...LOC 2216Z 235DEG 7KT 3554 10206

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...55 MPH

COR

Special weather statement, Aug 11, 5:38 PM CDT, 1 hour 31 minutes before

Special Weather Statement
National Weather Service Amarillo TX
538 PM CDT Mon Aug 11 2025

TXZ008-013-112315-
Hutchinson TX-Carson TX-
538 PM CDT Mon Aug 11 2025

...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN CARSON AND
SOUTHWESTERN HUTCHINSON COUNTIES THROUGH 615 PM CDT...

At 537 PM CDT, Doppler radar was tracking a strong thunderstorm 8
miles southeast of Fritch, or 11 miles southwest of Borger, moving
northeast at 10 mph.

HAZARD...Wind gusts of 50 to 55 mph and nickel size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Borger.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3547 10156 3557 10161 3568 10147 3544 10131
TIME...MOT...LOC 2237Z 241DEG 10KT 3554 10151

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...55 MPH

COR

Local storm report, Aug 11, 6:23 PM CDT, 46 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 11, 6:36 PM CDT, 33 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 11, 6:40 PM CDT, 29 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 11, 6:42 PM CDT, 27 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 11, 7:16 PM CDT	Severe Thunderstorm Warning Considerable damage threat	AMA	Armstrong, Carson, Donley	59 min
Aug 11, 7:17 PM CDT	Areal Flood Advisory	AMA	Potter, Randall	3 hr
Aug 11, 7:25 PM CDT	Severe Thunderstorm Warning Destructive damage threat	AMA	Armstrong, Potter, Randall	65 min
Aug 11, 7:31 PM CDT	Severe Thunderstorm Warning Considerable damage threat	AMA	Potter, Randall	59 min
Aug 11, 7:57 PM CDT	Severe Thunderstorm Warning Considerable damage threat	AMA	Armstrong, Carson, Donley	31 min
Aug 11, 8:02 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Randall	58 min
Aug 11, 8:16 PM CDT	Areal Flood Advisory	AMA	Armstrong, Randall	3 hr
Aug 11, 8:16 PM CDT	Severe Thunderstorm Warning	AMA	Randall	46 min
Aug 11, 8:26 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Randall	64 min
Aug 11, 8:44 PM CDT	Severe Thunderstorm Warning	AMA	Hemphill, Lipscomb, Ochiltree, Roberts	61 min
Aug 11, 8:46 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Randall	59 min
Aug 11, 8:55 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham, Potter, Randall	42 min
Aug 11, 9:07 PM CDT	Areal Flood Advisory	AMA	Deaf Smith, Randall	3 hr
Aug 11, 9:23 PM CDT	Severe Thunderstorm Warning	AMA	Collingsworth, Donley	67 min
Aug 11, 10:22 PM CDT	Special Weather Statement	AMA	Collingsworth	23 min
Aug 11, 10:34 PM CDT	Special Weather Statement	AMA	Deaf Smith	26 min
Aug 11, 10:44 PM CDT	Areal Flood Advisory	AMA	Deaf Smith	3 hr
Aug 12, 4:32 PM CDT	Special Weather Statement	AMA	Donley	28 min

Nearby

Severe Thunderstorm Warnings in Texas, 2025 Every severe thunderstorm warning in 2025

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.