Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Shreveport, LA

May 11, 2021Smith County, Texas

NWS Shreveport, LA issued this special weather statement at May 11, 2021, 1:32 PM CDT for Smith County, Texas. It was in force for 43 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: May 11, 2021, 1:32 PM CDT (18:32 UTC)
Expired: May 11, 2021, 2:15 PM CDT
In force: 43 min
Issued by: NWS Shreveport, LA

County Smith County, TX

The radar

The Shreveport radar (KSHV), 116 km from the middle of the area, began a volume at 18:33 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

Shreveport, LA (KSHV), launched 12:00Z, 6.5 hours before the alert went out and 125 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 605 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 48 m²/s²
0-3 km storm-relative helicity: 438 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.4

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 Shreveport, LA wrote its last area forecast discussion before this special weather statement went out at May 11, 12:48 PM CDT, 44 minutes earlier.

Area forecast discussion, May 11, 12:48 PM CDT, 44 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, May 11, 11:55 AM CDT, 1 hour 37 minutes before

Hazardous Weather Outlook
National Weather Service Shreveport LA
1155 AM CDT Tue May 11 2021

ARZ050-051-059>061-OKZ077-121700-
Sevier-Howard-Little River-Hempstead-Nevada-McCurtain-
1155 AM CDT Tue May 11 2021

This Hazardous Weather Outlook is for southeast Oklahoma and
adjacent southwest Arkansas from Idabel and DeQueen to Bluff City.

.DAY ONE...This Afternoon and Tonight...

Periods of moderate to heavy rainfall will once again be possible
this afternoon and tonight, which may result is some localized
flash flooding. A few of these storms may be strong to severe as
well. Damaging winds and hail would be the primary threats with
this activity.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday...

Dry conditions settle in by Wednesday afternoon and will remain
into the weekend. Shower and thunderstorm chances return by Sunday
night with moderate rainfall possible once again into Monday.

.SPOTTER INFORMATION STATEMENT...

Activation of emergency management personnel, amateur radio
operators and storm spotters may be needed this afternoon and
evening.

ARZ070>073-LAZ001>006-010>014-017>022-TXZ096-097-108>112-124>126-
136>138-149>153-165>167-121700-
Miller-Lafayette-Columbia-Union-Caddo-Bossier-Webster-Claiborne-
Lincoln-De Soto-Red River-Bienville-Jackson-Ouachita-Sabine-
Natchitoches-Winn-Grant-Caldwell-La Salle-Bowie-Franklin-Titus-
Camp-Morris-Cass-Wood-Upshur-Marion-Smith-Gregg-Harrison-Cherokee-
Rusk-Panola-Nacogdoches-Shelby-Angelina-San Augustine-
1155 AM CDT Tue May 11 2021

This Hazardous Weather Outlook is for extreme southern Arkansas,
for all of northern Louisiana and all of eastern Texas.

.DAY ONE...This Afternoon and Tonight...

Periods of moderate to heavy rainfall will once again be possible
this afternoon and tonight, which may result is some localized
flash flooding. A flash flood watch has been issued for these
areas, as soils remain saturated from lastnight. A few of these
storms this afternoon and evening may be strong to severe as
well. Damaging winds and hail would be the primary threats with
this activity.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday...

Dry conditions settle in by Wednesday afternoon and will remain
into the weekend. Shower and thunderstorm chances return by Sunday
night with moderate rain possible once again into Monday.

.SPOTTER INFORMATION STATEMENT...

Activation of emergency management personnel, amateur radio
operators and storm spotters will be needed this afternoon and
evening.

24

In the hours before

Special weather statement, May 11, 11:15 AM CDT, 2 hours 17 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, May 11, 11:59 AM CDT, 1 hour 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>

Special weather statement, May 11, 12:04 PM CDT, 1 hour 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>

Special weather statement, May 11, 12:31 PM CDT, 1 hour 1 minute 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, May 11, 1:28 PM CDT, 4 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, May 11, 1:32 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 Shreveport, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 10, 7:47 PM CDT	River Flood Warning	SHV	Gregg	64 hr
May 10, 8:41 PM CDT	Special Weather Statement	SHV	Camp, Morris, Upshur, Wood	64 min
May 10, 9:27 PM CDT	Special Weather Statement	SHV	Harrison, Marion	48 min
May 10, 9:29 PM CDT	Severe Thunderstorm Warning	SHV	Red River	46 min
May 11, 12:57 AM CDT	Special Weather Statement	SHV	Smith	48 min
May 11, 1:12 AM CDT	Special Weather Statement	SHV	Wood	48 min
May 11, 2:04 AM CDT	Flash Flood Watch	SHV	Angelina, Bowie, Camp, Cass, Cherokee, Franklin and 15 more	24 hr
May 11, 2:38 AM CDT	Special Weather Statement	SHV	Gregg	52 min
May 11, 3:20 AM CDT	Special Weather Statement	SHV	Harrison	40 min
May 11, 3:28 AM CDT	Areal Flood Advisory	SHV	Harrison	4 hr
May 11, 8:04 AM CDT	River Flood Warning	SHV	Anderson, Cherokee, Houston	36 days
May 11, 9:22 AM CDT	River Flood Warning	SHV	Gregg, Smith, Upshur, Wood	39 days
May 11, 9:25 AM CDT	River Flood Warning	SHV	Franklin, Morris, Red River, Titus	3 days
May 11, 9:25 AM CDT	River Flood Warning	SHV	Franklin, Morris, Titus	5 days
May 11, 11:15 AM CDT	Special Weather Statement	SHV	Cherokee	45 min
May 11, 11:59 AM CDT	Special Weather Statement	SHV	Cherokee	31 min
May 11, 12:31 PM CDT	Special Weather Statement	SHV	Cherokee	44 min
May 11, 1:34 PM CDT	Special Weather Statement	SHV	Gregg	41 min
May 11, 2:12 PM CDT	Special Weather Statement	SHV	Cass, Marion	48 min
May 11, 2:15 PM CDT	Special Weather Statement	SHV	Harrison	45 min
May 11, 2:21 PM CDT	Severe Thunderstorm Warning	SHV	Gregg, Harrison, Rusk, Smith, Upshur	37 min
May 11, 2:50 PM CDT	Special Weather Statement	SHV	Cherokee, Smith	40 min
May 11, 2:56 PM CDT	Severe Thunderstorm Warning	SHV	Gregg, Harrison, Panola, Rusk	17 min
May 11, 3:01 PM CDT	Severe Thunderstorm Warning	SHV	Cherokee, Gregg, Rusk, Smith	48 min
May 11, 3:59 PM CDT	Severe Thunderstorm Warning	SHV	Cherokee, Gregg, Harrison, Nacogdoches, Panola, Rusk and 1 more	61 min
May 11, 4:18 PM CDT	Severe Thunderstorm Warning	SHV	Angelina, Cherokee	42 min
May 11, 5:01 PM CDT	Special Weather Statement	SHV	Angelina	59 min
May 11, 6:00 PM CDT	Special Weather Statement	SHV	Angelina	45 min
May 11, 6:14 PM CDT	Severe Thunderstorm Warning	SHV	Angelina	28 min
May 10, 8:13 PM CDT	Special Weather Statement	SHV	Grant, Natchitoches	47 min
May 10, 11:24 PM CDT	Areal Flood Advisory	SHV	Bossier, Caddo	3 hr
May 11, 1:55 AM CDT	Special Weather Statement	SHV	LaSalle	50 min
May 11, 4:38 AM CDT	Special Weather Statement	SHV	LaSalle	37 min
May 11, 7:29 AM CDT	Special Weather Statement	SHV	LaSalle	46 min
May 11, 7:39 AM CDT	Special Weather Statement	SHV	De Soto, Sabine	51 min
May 11, 9:25 AM CDT	Special Weather Statement	SHV	Claiborne	35 min
May 11, 3:26 PM CDT	Special Weather Statement	SHV	Caddo	64 min
May 10, 9:56 PM CDT	Severe Thunderstorm Warning	SHV	Sevier	49 min
May 10, 10:11 PM CDT	Special Weather Statement	SHV	Howard	34 min
May 11, 3:37 AM CDT	Special Weather Statement	SHV	Little River	53 min
May 11, 12:04 PM CDT	Special Weather Statement	SHV	Howard	26 min
May 10, 8:59 PM CDT	Special Weather Statement	SHV	McCurtain	46 min
May 10, 9:12 PM CDT	Severe Thunderstorm Warning	SHV	McCurtain	38 min
May 11, 1:28 PM CDT	Special Weather Statement	SHV	McCurtain	47 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.