Alert archive / Louisiana / River Flood Warnings in 2020

River Flood Warning 112, NWS Shreveport, LA

April 23, 20204 parishes in Louisiana

NWS Shreveport, LA issued this river flood warning at Apr 23, 2020, 9:55 AM CDT for 4 parishes in Louisiana. It took effect at Apr 23, 2020, 1:00 PM CDT. It was in force for 5 days.

The area

The counties it named.

The facts

Issued
Apr 23, 2020, 9:55 AM CDT (14:55 UTC)
In effect from
Apr 23, 2020, 1:00 PM CDT
Expired
Apr 28, 2020, 9:48 AM CDT
In force
5 days
Issued by
NWS Shreveport, LA
Area
Storm-based polygon
Flood severity
Minor

Counties Bienville Parish, LA, Bossier Parish, LA, Red River Parish, LA, Webster Parish, LA

The radar

The Shreveport radar (KSHV), 48 km from the middle of the area, began a volume at 14:58 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 river

Written for the forecast point Bayou Dorcheat at Lake Bistineau (LBUL1). The gauge peaked at 12.79 ft at Apr 25, 2020, 11:00 AM CDT.

actionminormoderatemajor5010004/2304/2404/2504/2604/2704/2804/29
Action stage
142 ft
Minor stage
142.5 ft
Moderate stage
144 ft
Major stage
145 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 07349250, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river 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 river flood warning went out at Apr 23, 5:47 AM CDT, 4 hours 8 minutes earlier.

Area forecast discussion, Apr 23, 5:47 AM CDT, 4 hours 8 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, Apr 23, 6:15 AM CDT, 3 hours 40 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>

In the hours before

Local storm report, Apr 23, 8:45 AM CDT, 1 hour 10 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.

IssuedProductOfficeCountiesLasted
Apr 22, 7:01 PM CDTTornado Warning Tornado observedSHVRed River44 min
Apr 22, 7:41 PM CDTTornado WarningSHVRed River21 min
Apr 22, 8:08 PM CDTSevere Thunderstorm WarningSHVRed River37 min
Apr 22, 8:12 PM CDTTornado WarningSHVRed River23 min
Apr 22, 8:41 PM CDTSevere Thunderstorm WarningSHVBowie, Red River49 min
Apr 22, 8:47 PM CDTSpecial Weather StatementSHVShelby43 min
Apr 22, 9:06 PM CDTSevere Thunderstorm WarningSHVNacogdoches, Sabine, San Augustine, Shelby39 min
Apr 22, 9:12 PM CDTFlash Flood WarningSHVNacogdoches, Sabine, San Augustine, Shelby109 min
Apr 22, 10:35 PM CDTSpecial Weather StatementSHVCass, Marion40 min
Apr 22, 7:14 PM CDTSpecial Weather StatementSHVBienville, Jackson46 min
Apr 22, 8:49 PM CDTSpecial Weather StatementSHVBienville, Jackson41 min
Apr 22, 9:18 PM CDTSevere Thunderstorm WarningSHVBienville, De Soto, Natchitoches, Red River, Winn42 min
Apr 22, 9:48 PM CDTSpecial Weather StatementSHVSabine42 min
Apr 22, 9:55 PM CDTTornado WarningSHVLaSalle20 min
Apr 22, 9:58 PM CDTSevere Thunderstorm WarningSHVBienville, Caldwell, Jackson, Natchitoches, Ouachita, Winn62 min
Apr 22, 10:13 PM CDTTornado WarningSHVNatchitoches, Winn32 min
Apr 22, 10:13 PM CDTTornado WarningSHVBienville, Caldwell, Jackson, Ouachita, Winn47 min
Apr 22, 10:16 PM CDTFlash Flood WarningSHVBienville, Caldwell, De Soto, Jackson, Lincoln, Natchitoches and 5 more3 hr
Apr 22, 10:38 PM CDTSevere Thunderstorm WarningSHVCaldwell, Jackson, Ouachita, Winn52 min
Apr 22, 10:38 PM CDTTornado WarningSHVNatchitoches, Winn37 min
Apr 22, 11:13 PM CDTSpecial Weather StatementSHVCaldwell47 min
Apr 22, 11:33 PM CDTTornado WarningSHVCaldwell, LaSalle27 min
Apr 22, 8:25 PM CDTTornado WarningSHVLittle River, Sevier23 min
Apr 22, 9:22 PM CDTSevere Thunderstorm WarningSHVHempstead, Howard, Little River, Nevada, Sevier38 min
Apr 22, 10:00 PM CDTSevere Thunderstorm WarningSHVHempstead, Nevada30 min

Nearby

River Flood Warnings in Louisiana, 2020Every river flood warning in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.