Alert archive / Louisiana / Special Weather Statements in 2021
Special Weather Statement, NWS New Orleans, LA
NWS New Orleans, LA issued this special weather statement at Jul 12, 2021, 7:23 AM CDT for West Feliciana Parish, Louisiana; Wilkinson County, Mississippi. It was in force for 52 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
- Jul 12, 2021, 7:23 AM CDT (12:23 UTC)
- Expired
- Jul 12, 2021, 8:15 AM CDT
- In force
- 52 min
- Issued by
- NWS New Orleans, LA
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 0.4 hours before the alert went out and 183 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 43 J/kg
- Mixed-layer CIN
- -121 J/kg
- Mixed-layer LCL
- 964 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -53 m²/s²
- 0-3 km storm-relative helicity
- -85 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Jul 12, 6:36 AM CDT, 47 minutes earlier.
Area forecast discussion, Jul 12, 6:36 AM CDT, 47 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, Jul 12, 7:23 AM CDT, 0 minutes before
Special Weather Statement
National Weather Service New Orleans LA
723 AM CDT Mon Jul 12 2021
LAZ034-035-MSZ068-069-121315-
Pointe Coupee-West Feliciana-Wilkinson-Amite-
723 AM CDT Mon Jul 12 2021
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN WEST
FELICIANA AND NORTHWESTERN POINTE COUPEE PARISHES...WILKINSON AND
NORTHWESTERN AMITE COUNTIES...
At 721 AM CDT, radar indicated strong thunderstorms were located
along a line extending from near Clayton to near Sibley to 7 miles
east of Slocum to near Moreauville to near Indian Lake to near
Lunita. Movement was east at 35 mph.
Winds in excess of 40 mph are possible with these storms.
Locations impacted include...
Woodville, Gloster, Lettsworth, Batchelor, Fort Adams, Dolorosa and
Crosby.
Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.
These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
To report severe weather, contact your nearest law enforcement
agency. They can relay your report to the National Weather Service
office in New Orleans.
LAT...LON 3132 9112 3135 9102 3135 9074 3125 9079
3102 9128 3080 9148 3071 9174 3086 9182
3097 9181 3104 9172 3104 9165 3097 9166
3104 9156 3113 9163 3124 9156 3124 9148
3128 9149 3132 9146 3137 9123
TIME...MOT...LOC 1221Z 273DEG 30KT 3170 9151 3144 9145 3129 9152 3107
9200 3084 9220 3034 9354
PGThe office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 3:50 AM CDT | River Flood Warning | LIX | Saint Tammany | 31 hr |
| Jul 12, 3:50 AM CDT | River Flood Warning | LIX | Saint Tammany | 10 hr |
| Jul 12, 5:45 AM CDT | River Flood Warning | LIX | Saint Tammany | 30 hr |
| Jul 12, 8:04 AM CDT | Special Weather Statement | LIX | East Feliciana, Pointe Coupee, West Feliciana | 56 min |
| Jul 12, 9:00 AM CDT | Special Weather Statement | LIX | East Baton Rouge, East Feliciana, Pointe Coupee, Saint Helena, West Baton Rouge, West Feliciana | 30 min |
| Jul 12, 10:56 AM CDT | Special Marine Warning | LIX | 64 min | |
| Jul 12, 11:07 AM CDT | Severe Thunderstorm Warning | LIX | Jefferson | 8 min |
| Jul 12, 11:14 AM CDT | Special Weather Statement | LIX | Saint Tammany | 46 min |
| Jul 12, 11:49 AM CDT | Special Weather Statement | LIX | Orleans | 26 min |
| Jul 12, 11:56 AM CDT | Special Marine Warning | LIX | 49 min | |
| Jul 12, 12:05 PM CDT | Areal Flood Advisory | LIX | Saint Tammany | 115 min |
| Jul 12, 12:15 PM CDT | Special Marine Warning | LIX | 60 min | |
| Jul 12, 12:23 PM CDT | Special Weather Statement | LIX | Jefferson, Lafourche | 67 min |
| Jul 12, 1:11 PM CDT | Special Marine Warning | LIX | 64 min | |
| Jul 12, 1:43 PM CDT | Special Marine Warning | LIX | 62 min | |
| Jul 12, 2:13 PM CDT | Special Marine Warning | LIX | 62 min | |
| Jul 12, 3:11 PM CDT | Special Marine Warning | LIX | 64 min | |
| Jul 12, 4:10 PM CDT | Special Marine Warning | LIX | 65 min | |
| Jul 11, 7:32 PM CDT | River Flood Warning | LIX | Harrison | 38 hr |
| Jul 12, 6:01 AM CDT | River Flood Warning | LIX | Pearl River | 38 hr |
| Jul 12, 10:17 AM CDT | Special Weather Statement | LIX | Pearl River | 43 min |
| Jul 12, 1:27 PM CDT | Special Weather Statement | LIX | Jackson | 63 min |
Nearby
Special Weather Statements in Louisiana, 2021Special Weather Statements in Mississippi, 2021Every 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; the sounding from the Mesonet's radiosonde archive.