Alert archive / Louisiana / Flash Flood Warnings in 2025

Flash Flood Warning 25, NWS Shreveport, LA

April 5, 20256 parishes in Louisiana

NWS Shreveport, LA issued this flash flood warning at Apr 5, 2025, 9:40 PM CDT for 6 parishes in Louisiana. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 5, 2025, 9:40 PM CDT (02:40 UTC)
Expired: Apr 6, 2025, 3:45 AM CDT
In force: 6 hr
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Flood severity: None

Counties Caldwell Parish, LA, Grant Parish, LA, LaSalle Parish, LA, Natchitoches Parish, LA, Ouachita Parish, LA, Winn Parish, LA

The radar

The Ft Polk radar (KPOE), 98 km from the middle of the area, began a volume at 02:42 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

Lake Charles Mun, LA (KLCH), launched 00:00Z, 2.7 hours before the alert went out and 212 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: 1744 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 647 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 297 m²/s²
0-3 km storm-relative helicity: 271 m²/s²
Significant tornado parameter: 3.1
Supercell composite: 15.9

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Apr 5, 6:49 PM CDT, 2 hours 51 minutes earlier.

Area forecast discussion, Apr 5, 6:49 PM CDT, 2 hours 51 minutes before

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In the hours before

Local storm report, Apr 5, 3:50 PM CDT, 5 hours 50 minutes before

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Local storm report, Apr 5, 5:00 PM CDT, 4 hours 40 minutes before

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      <div class="status" id="status">Temporary Notice</div>
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      <p id="message2">
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Special weather statement, Apr 5, 5:02 PM CDT, 4 hours 38 minutes before

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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>
      <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.
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Special weather statement, Apr 5, 6:34 PM CDT, 3 hours 6 minutes before

<!doctype html>
<html lang="en">
<head>
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  <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>
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</body>
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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 5, 9:49 PM CDT	River Flood Warning	SHV	Gregg, Harrison, Marion, Upshur	7 days
Apr 5, 9:49 PM CDT	River Flood Warning	SHV	Angelina, Houston, Polk, Trinity, Tyler	71 hr
Apr 6, 12:25 PM CDT	River Flood Warning	SHV	Cass, Harrison, Marion	10 days
Apr 6, 2:49 PM CDT	River Flood Warning	SHV	Nacogdoches, Rusk	18 hr
Apr 5, 7:38 PM CDT	Flash Flood Warning	SHV	Bienville, Jackson, Lincoln, Natchitoches, Ouachita, Red River and 2 more	5 hr
Apr 5, 8:27 PM CDT	Special Weather Statement	SHV	Caldwell, LaSalle, Winn	33 min
Apr 5, 8:55 PM CDT	Special Weather Statement	SHV	Caldwell, Grant, LaSalle	35 min
Apr 6, 9:49 AM CDT	River Flood Warning	SHV	Caldwell, Grant, LaSalle, Winn	7 days
Apr 6, 12:29 PM CDT	River Flood Warning	SHV	Bienville, Bossier, Caddo, Natchitoches, Red River	71 hr
Apr 6, 12:30 PM CDT	River Flood Warning	SHV	Grant, Natchitoches, Red River	3 days
Apr 6, 5:17 PM CDT	Flash Flood Warning Considerable damage threat	SHV	Lafayette, Miller	29 hr

Nearby

Flash Flood Warnings in Louisiana, 2025 Every flash flood 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.