Alert archive / Louisiana / River Flood Warnings in 2020

River Flood Warning 101, NWS Lake Charles, LA

December 20, 2020Allen Parish, Louisiana

NWS Lake Charles, LA issued this river flood warning at Dec 20, 2020, 9:38 AM CST for Allen Parish, Louisiana. It took effect at Dec 21, 2020, 4:00 PM CST. It was in force for 5 days.

The area

The counties it named.

The facts

Issued: Dec 20, 2020, 9:38 AM CST (15:38 UTC)
In effect from: Dec 21, 2020, 4:00 PM CST
Expired: Dec 27, 2020, 3:00 AM CST
In force: 5 days
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Flood severity: Minor

County Allen Parish, LA

The radar

The Ft Polk radar (KPOE), 58 km from the middle of the area, began a volume at 15:42 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 river

Written for the forecast point Calcasieu River near Oberlin (OBCL1).

Action stage: 12 ft
Minor stage: 13 ft
Moderate stage: 15 ft
Major stage: 19 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 08013500, 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 Lake Charles, LA wrote its last area forecast discussion before this river flood warning went out at Dec 19, 5:55 PM CST, 15 hours 43 minutes earlier.

Area forecast discussion, Dec 19, 5:55 PM CST, 15 hours 43 minutes before

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Hazardous weather outlook, Dec 19, 3:45 PM CST, 17 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 Lake Charles, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 19, 8:58 PM CST	River Flood Warning	LCH	Acadia, Evangeline, Saint Landry	43 hr
Dec 20, 9:38 AM CST	River Flood Warning	LCH	Allen, Rapides	4 days
Dec 20, 9:38 AM CST	River Flood Warning	LCH	Calcasieu	13 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.