Alert archive / Texas / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 481, NWS Shreveport, LA

September 25, 20236 counties in Texas; De Soto Parish, Natchitoches Parish, Sabine Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Sep 25, 2023, 12:33 AM CDT for 6 counties in Texas; De Soto Parish, Natchitoches Parish, Sabine Parish, Louisiana. It was in force for 57 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: Sep 25, 2023, 12:33 AM CDT (05:33 UTC)
Expired: Sep 25, 2023, 1:30 AM CDT
In force: 57 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Damage threat: Considerable
Hail: 1.0 in
Wind: 70.0 mph

Counties De Soto Parish, LA, Natchitoches Parish, LA, Sabine Parish, LA, Angelina County, TX, Nacogdoches County, TX, Panola County, TX, Sabine County, TX, San Augustine County, TX, Shelby County, TX

The radar

The Shreveport radar (KSHV), 90 km from the middle of the area, began a volume at 05:34 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

Fort Worth, TX (KFWD), launched 00:00Z, 5.6 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-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: 907 J/kg
Mixed-layer CIN: -145 J/kg
Mixed-layer LCL: 2110 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 22 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Shreveport, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 24, 1:46 PM CDT, 10 hours 47 minutes earlier.

Area forecast discussion, Sep 24, 1:46 PM CDT, 10 hours 47 minutes before

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Hazardous weather outlook, Sep 24, 1:24 PM CDT, 11 hours 9 minutes before

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<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>
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        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 24, 7:00 PM CDT	Special Weather Statement	SHV	Cherokee	45 min
Sep 24, 7:32 PM CDT	Special Weather Statement	SHV	Wood	43 min
Sep 24, 8:14 PM CDT	Special Weather Statement	SHV	Wood	31 min
Sep 24, 8:50 PM CDT	Severe Thunderstorm Warning	SHV	Smith, Wood	55 min
Sep 24, 9:23 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SHV	Gregg, Smith, Upshur, Wood	52 min
Sep 24, 9:44 PM CDT	Severe Thunderstorm Warning	SHV	Cherokee, Rusk, Smith	46 min
Sep 24, 10:06 PM CDT	Special Weather Statement	SHV	Cass, Morris, Titus	24 min
Sep 24, 10:12 PM CDT	Severe Thunderstorm Warning	SHV	Gregg, Harrison, Marion, Rusk, Smith, Upshur and 1 more	48 min
Sep 24, 10:22 PM CDT	Severe Thunderstorm Warning	SHV	Cherokee, Smith	53 min
Sep 24, 10:32 PM CDT	Special Weather Statement	SHV	Cass, Morris	28 min
Sep 24, 10:33 PM CDT	Severe Thunderstorm Warning	SHV	Cherokee, Rusk, Smith	42 min
Sep 24, 10:59 PM CDT	Special Weather Statement	SHV	Marion	31 min
Sep 24, 11:06 PM CDT	Severe Thunderstorm Warning	SHV	Harrison, Marion	39 min
Sep 24, 11:14 PM CDT	Severe Thunderstorm Warning	SHV	Angelina, Cherokee, Nacogdoches, Panola, Rusk, Shelby and 1 more	46 min
Sep 24, 11:58 PM CDT	Severe Thunderstorm Warning	SHV	Angelina, Cherokee, Nacogdoches, Panola, Rusk, San Augustine and 1 more	47 min
Sep 25, 1:54 AM CDT	Special Weather Statement	SHV	Wood	36 min
Sep 25, 2:11 AM CDT	Special Weather Statement	SHV	Smith	34 min
Sep 25, 2:53 AM CDT	Special Weather Statement	SHV	Smith	37 min
Sep 25, 3:28 AM CDT	Special Weather Statement	SHV	Cherokee, Rusk	62 min
Sep 25, 4:32 AM CDT	Special Weather Statement	SHV	Angelina, Nacogdoches, San Augustine	58 min
Sep 25, 6:54 AM CDT	Areal Flood Advisory	SHV	Angelina	3 hr
Sep 24, 9:55 PM CDT	Special Weather Statement	SHV	Bossier	35 min
Sep 24, 10:30 PM CDT	Special Weather Statement	SHV	Red River	30 min
Sep 24, 11:01 PM CDT	Special Weather Statement	SHV	Red River	29 min
Sep 24, 11:32 PM CDT	Special Weather Statement	SHV	Caddo	28 min
Sep 24, 11:49 PM CDT	Severe Thunderstorm Warning	SHV	Caddo	26 min
Sep 25, 12:13 AM CDT	Severe Thunderstorm Warning	SHV	Caddo, De Soto	32 min
Sep 25, 12:28 AM CDT	Severe Thunderstorm Warning	SHV	Bossier, Caddo, De Soto, Red River	28 min
Sep 25, 12:58 AM CDT	Special Weather Statement	SHV	Red River	32 min
Sep 25, 1:28 AM CDT	Special Weather Statement	SHV	Natchitoches	47 min
Sep 25, 1:29 AM CDT	Special Weather Statement	SHV	Sabine	31 min
Sep 25, 2:17 AM CDT	Special Weather Statement	SHV	LaSalle	43 min
Sep 25, 4:49 PM CDT	Special Weather Statement	SHV	Caddo	41 min

Nearby

Severe Thunderstorm Warnings in Texas, 2023 Severe Thunderstorm Warnings in Louisiana, 2023 Every severe thunderstorm warning in 2023

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.