Alert archive / Louisiana / River Flood Warnings in 2020

River Flood Warning 133, NWS New Orleans, LA

May 15, 2020Saint Tammany Parish, Louisiana

NWS New Orleans, LA issued this river flood warning at May 15, 2020, 9:46 AM CDT for Saint Tammany Parish, Louisiana. It took effect at May 16, 2020, 7:00 AM CDT. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued: May 15, 2020, 9:46 AM CDT (14:46 UTC)
In effect from: May 16, 2020, 7:00 AM CDT
Expired: May 16, 2020, 8:07 PM CDT
In force: 13 hr
Issued by: NWS New Orleans, LA
Area: Storm-based polygon
Flood severity: Minor

County Saint Tammany Parish, LA

The river

Written for the forecast point Bogue Chitto River near Bush (BSHL1). The gauge peaked at 11.16 ft at May 16, 2020, 8:00 AM CDT.

Action stage: 9 ft
Minor stage: 11 ft
Moderate stage: 15 ft
Major stage: 18 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 02492000, 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 New Orleans, LA wrote its last area forecast discussion before this river flood warning went out at May 15, 3:06 AM CDT, 6 hours 40 minutes earlier.

Area forecast discussion, May 15, 3:06 AM CDT, 6 hours 40 minutes before

<!doctype html>
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  <title>Service Notice</title>
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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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    </section>
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  <script src="index.js"></script>
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In the hours before

Local storm report, May 15, 6:43 AM CDT, 3 hours 3 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 New Orleans, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 14, 7:01 PM CDT	Tornado Warning	LIX	Saint Tammany, Tangipahoa	29 min
May 14, 7:08 PM CDT	Flash Flood Warning	LIX	Livingston, Saint Tammany, Tangipahoa	6 hr
May 14, 8:13 PM CDT	Special Marine Warning	LIX		32 min
May 14, 8:16 PM CDT	Special Marine Warning	LIX		29 min
May 14, 8:27 PM CDT	Flash Flood Warning	LIX	Ascension, Assumption, Saint James, Saint John the Baptist	3 hr
May 14, 8:28 PM CDT	River Flood Warning	LIX	Saint Tammany	49 hr
May 14, 9:05 PM CDT	Special Marine Warning	LIX		25 min
May 14, 9:32 PM CDT	River Flood Warning	LIX	Saint Tammany	68 hr
May 14, 9:46 PM CDT	Special Marine Warning	LIX		29 min
May 14, 10:01 PM CDT	Special Weather Statement	LIX	Saint Charles	29 min
May 14, 10:23 PM CDT	Flash Flood Warning	LIX	Lafourche, Saint Charles, Saint John the Baptist	5 hr
May 14, 11:03 PM CDT	Special Weather Statement	LIX	Saint Charles	42 min
May 14, 11:07 PM CDT	Areal Flood Advisory	LIX	Jefferson, Orleans, Plaquemines, Saint Bernard, Saint Charles	3 hr
May 14, 11:28 PM CDT	Special Weather Statement	LIX	Saint Tammany	47 min
May 14, 11:53 PM CDT	Flash Flood Warning	LIX	Jefferson, Orleans	3 hr
May 14, 11:58 PM CDT	River Flood Warning	LIX	Saint Tammany	33 hr
May 15, 12:11 AM CDT	Special Weather Statement	LIX	Orleans	49 min
May 15, 1:16 AM CDT	Areal Flood Warning	LIX	Saint John the Baptist, Saint Tammany, Tangipahoa	104 min
May 15, 2:27 AM CDT	Flash Flood Warning	LIX	Jefferson, Lafourche, Terrebonne	3 hr
May 15, 4:07 AM CDT	Special Marine Warning	LIX		113 min
May 15, 3:04 PM CDT	Areal Flood Advisory	LIX	Tangipahoa	116 min

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; the gauge from the NWS water service and the USGS.