Alert archive / Louisiana / Special Weather Statements in 2021

Special Weather Statement, NWS New Orleans, LA

May 4, 2021Tangipahoa Parish, Louisiana

NWS New Orleans, LA issued this special weather statement at May 4, 2021, 8:03 PM CDT for Tangipahoa Parish, Louisiana. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 4, 2021, 8:03 PM CDT (01:03 UTC)
Expired: May 4, 2021, 8:30 PM CDT
In force: 27 min
Issued by: NWS New Orleans, LA

County Tangipahoa Parish, LA

The text

As transmitted.

<!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>

What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at May 4, 2:42 PM CDT, 5 hours 21 minutes earlier.

Area forecast discussion, May 4, 2:42 PM CDT, 5 hours 21 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

Special weather statement, May 4, 2:15 PM CDT, 5 hours 48 minutes before

Special Weather Statement
National Weather Service New Orleans LA
215 PM CDT Tue May 4 2021

MSZ068-041945-
Wilkinson-
215 PM CDT Tue May 4 2021

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN WILKINSON COUNTY...

At 214 PM CDT, a strong thunderstorm was located near Dolorosa, or 24
miles south of Natchez, moving northeast at 40 mph.

Winds in excess of 30 mph and pea size hail are possible with this
storm.

Locations impacted include...
Dolorosa.

LAT...LON 3135 9121 3134 9115 3132 9111 3110 9127
      3123 9149 3126 9148 3128 9150 3129 9147
      3132 9146 3132 9140 3136 9130 3137 9123
TIME...MOT...LOC 1914Z 205DEG 35KT 3122 9133

MSW

Special weather statement, May 4, 4:56 PM CDT, 3 hours 7 minutes before

Special Weather Statement
National Weather Service New Orleans LA
456 PM CDT Tue May 4 2021

LAZ039-071-072-075-MSZ071-077-042230-
Washington-Northern Tangipahoa-Northwest St. Tammany-Southern
Tangipahoa-Walthall-Pearl River-
456 PM CDT Tue May 4 2021

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN ST.
TAMMANY...CENTRAL TANGIPAHOA AND WASHINGTON PARISHES...SOUTHEASTERN
WALTHALL AND NORTHWESTERN PEARL RIVER COUNTIES...

At 455 PM CDT, radar indicated strong thunderstorms were located
along a line extending from near Pickwick to 7 miles northwest of
Folsom. Movement was east at 45 mph.

Winds in excess of 30 mph and pea size hail are possible with these
storms.

Locations impacted include...
Bogalusa, Covington, Franklinton, Abita Springs, Independence,
Varnado, Folsom, Sun, Enon, Crossroads, Bush, Dexter, Tickfaw and
Angie.

This includes Interstate 55 in Louisiana between mile markers 37 and
43.

LAT...LON 3107 8992 3107 8984 3100 8983 3101 8951
      3098 8944 3044 9005 3060 9057 3065 9057
      3113 8994
TIME...MOT...LOC 2155Z 261DEG 41KT 3110 8978 3070 9030

MSW

Special weather statement, May 4, 5:32 PM CDT, 2 hours 31 minutes before

Special Weather Statement
National Weather Service New Orleans LA
532 PM CDT Tue May 4 2021

LAZ039-071-072-075-MSZ071-077-042315-
Washington-Northern Tangipahoa-Northwest St. Tammany-Southern
Tangipahoa-Walthall-Pearl River-
532 PM CDT Tue May 4 2021

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN ST.
TAMMANY...CENTRAL TANGIPAHOA AND WASHINGTON PARISHES...SOUTHEASTERN
WALTHALL AND PEARL RIVER COUNTIES...

At 532 PM CDT, radar indicated strong thunderstorms were located
along a line extending from near Lumberton to near Folsom. Movement
was east at 25 mph.

Winds in excess of 30 mph are possible with these storms.

Locations impacted include...
Bogalusa, Covington, Franklinton, Poplarville, Abita Springs,
Independence, Varnado, Folsom, Sun, Enon, Crossroads, Bush and Angie.

This includes the following Interstates...
 Interstate 12 between mile markers 61 and 62.
 Interstate 55 in Louisiana between mile markers 40 and 44.
 Interstate 59 in Mississippi between mile markers 24 and 42.

Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 3100 8983 3100 8955 3101 8951 3100 8947
      3098 8947 3098 8943 3101 8942 3101 8935
      3100 8934 3086 8934 3043 9010 3065 9057
      3067 9057 3108 8984
TIME...MOT...LOC 2232Z 269DEG 20KT 3100 8950 3058 9020

MSW

The office that day

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

Issued	Product	Office	Counties	Lasted
May 4, 7:21 PM CDT	Special Marine Warning	LIX		54 min
May 4, 8:13 PM CDT	Special Weather Statement	LIX	Washington	17 min
May 4, 8:21 PM CDT	Special Marine Warning	LIX		54 min
May 4, 9:06 PM CDT	River Flood Warning	LIX	Saint Tammany	69 hr
May 4, 10:03 PM CDT	Severe Thunderstorm Warning	LIX	Livingston, Saint John the Baptist, Tangipahoa	27 min
May 4, 10:06 PM CDT	Special Marine Warning	LIX		24 min
May 4, 10:25 PM CDT	Special Marine Warning	LIX		65 min
May 4, 10:28 PM CDT	Severe Thunderstorm Warning	LIX	Saint John the Baptist, Tangipahoa	5 min
May 5, 12:47 AM CDT	Areal Flood Advisory	LIX	Jefferson, Orleans, Saint Bernard, Saint Charles, Saint James, Saint John the Baptist	103 min
May 5, 1:15 AM CDT	Special Weather Statement	LIX	Orleans	45 min
May 5, 4:24 AM CDT	Areal Flood Advisory	LIX	Saint Tammany	3 hr
May 5, 6:16 AM CDT	River Flood Warning	LIX	Saint Tammany	25 hr
May 5, 6:45 AM CDT	Areal Flood Advisory	LIX	Saint Charles, Saint James, Saint John the Baptist	2 hr
May 5, 7:01 AM CDT	Flash Flood Warning	LIX	Saint Tammany	89 min
May 5, 7:20 AM CDT	Flash Flood Warning	LIX	Saint Charles, Saint James, Saint John the Baptist	115 min
May 5, 7:39 AM CDT	Special Marine Warning	LIX		36 min
May 5, 7:48 AM CDT	Areal Flood Advisory	LIX	Orleans, Saint Tammany	117 min
May 5, 8:00 AM CDT	Areal Flood Advisory	LIX	Jefferson, Orleans, Plaquemines, Saint Bernard, Saint Charles	2 hr
May 5, 8:25 AM CDT	Flash Flood Warning	LIX	Jefferson, Orleans, Plaquemines, Saint Bernard	2 hr
May 5, 9:23 AM CDT	Special Marine Warning	LIX		67 min
May 5, 10:25 AM CDT	Special Marine Warning	LIX		50 min
May 5, 10:31 AM CDT	Special Marine Warning	LIX		59 min
May 5, 11:11 AM CDT	Special Marine Warning	LIX		49 min
May 4, 9:04 PM CDT	River Flood Warning	LIX	Pearl River	56 hr
May 4, 9:04 PM CDT	River Flood Warning	LIX	Pearl River	13 hr
May 5, 5:14 AM CDT	Special Weather Statement	LIX	Harrison	46 min

Nearby

Special Weather Statements in Louisiana, 2021 Every special weather statement in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.