Alert archive / Louisiana / River Flood Warnings in 2020

River Flood Warning 69, NWS Shreveport, LA

March 22, 20204 parishes in Louisiana

NWS Shreveport, LA issued this river flood warning at Mar 22, 2020, 8:50 AM CDT for 4 parishes in Louisiana. It took effect at Mar 23, 2020, 8:30 AM CDT. It was in force for 3 days.

The area

The counties it named.

The facts

Issued: Mar 22, 2020, 8:50 AM CDT (13:50 UTC)
In effect from: Mar 23, 2020, 8:30 AM CDT
Expired: Mar 26, 2020, 11:23 AM CDT
In force: 3 days
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Flood severity: Minor

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

The radar

The Ft Polk radar (KPOE), 94 km from the middle of the area, began a volume at 13:49 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 Little River of Louisiana near Rochelle (RHLL1). The gauge peaked at 31.94 ft at Mar 25, 2020, 7:00 PM CDT.

Action stage: 31.5 ft
Minor stage: 32 ft
Moderate stage: 38 ft
Major stage: 42 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 07372200, 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 Mar 21, 6:59 PM CDT, 13 hours 51 minutes earlier.

Area forecast discussion, Mar 21, 6:59 PM CDT, 13 hours 51 minutes before

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Hazardous weather outlook, Mar 21, 12:57 PM CDT, 19 hours 53 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
Mar 22, 8:10 AM CDT	River Flood Warning	SHV	Anderson, Cherokee, Houston, Trinity	21 days
Mar 22, 8:18 AM CDT	River Flood Warning	SHV	Nacogdoches, Rusk	24 hr
Mar 22, 8:23 AM CDT	River Flood Warning	SHV	Angelina, Cherokee, Nacogdoches	17 days
Mar 22, 8:24 AM CDT	River Flood Warning	SHV	Nacogdoches, Rusk, San Augustine, Shelby	7 days
Mar 22, 8:25 AM CDT	River Flood Warning	SHV	Sabine, San Augustine	24 hr
Mar 22, 8:33 AM CDT	River Flood Warning	SHV	Gregg	24 hr
Mar 22, 9:27 AM CDT	River Flood Warning	SHV	Cass, Marion	5 days

Nearby

River Flood Warnings in Louisiana, 2020 Every 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.