Alert archive / Louisiana / Special Marine Warnings in 2021
Special Marine Warning 455, NWS New Orleans, LA
NWS New Orleans, LA issued this special marine warning at Aug 3, 2021, 11:52 AM CDT. It was in force for 113 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 3, 2021, 11:52 AM CDT (16:52 UTC)
- Expired
- Aug 3, 2021, 1:45 PM CDT
- In force
- 113 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
- Hail
- 0.0 in
- Wind
- 40.0 mph
What forecasters said that day
The local office's own words before this special marine 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 special marine warning went out at Aug 3, 6:17 AM CDT, 5 hours 35 minutes earlier.
Area forecast discussion, Aug 3, 6:17 AM CDT, 5 hours 35 minutes before
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Special weather statement, Aug 3, 7:47 AM CDT, 4 hours 5 minutes before
Special Weather Statement
National Weather Service New Orleans LA
747 AM CDT Tue Aug 3 2021
LAZ048>050-057>061-063-064-067>070-072-077-031415-
St. Charles-Livingston-Ascension-Lower Jefferson-Southern
Tangipahoa-Lower St. Bernard-St. James-East Baton Rouge-Lower
Plaquemines-Western Orleans-Upper St. Bernard-Lower Lafourche-St.
John The Baptist-Upper Plaquemines-Upper Lafourche-Upper Jefferson-
747 AM CDT Tue Aug 3 2021
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT ST. JOHN THE BAPTIST...
CENTRAL ASCENSION...NORTHEASTERN ST. JAMES...SOUTHWESTERN ST.
BERNARD...ST. CHARLES...SOUTHWESTERN ORLEANS...SOUTHERN LIVINGSTON...
NORTHEASTERN LAFOURCHE...JEFFERSON...SOUTHERN TANGIPAHOA...
NORTHWESTERN PLAQUEMINES AND SOUTH CENTRAL EAST BATON ROUGE
PARISHES...
At 746 AM CDT, radar indicated strong thunderstorms were located
along a line extending from near Prairieville to 7 miles northeast of
Cut Off. Movement was east at 20 mph.
Winds in excess of 30 mph are possible with these storms.
Locations impacted include...
New Orleans, Hammond, Gonzales, Reserve, Metairie, Hahnville,
Laplace, Marrero, Chalmette, Avondale, Harvey, Timberlane, Belle
Chasse, Port Sulphur, Jefferson, Gretna, Harahan, Westwego,
Ponchatoula and Gramercy.
This includes the following Interstates...
Interstate 10 in Louisiana between mile markers 166 and 170, and
between mile markers 184 and 245.
Interstate 12 between mile markers 36 and 45.
Interstate 55 in Louisiana between mile markers 1 and 30.
Interstate 310 between mile markers 1 and 11.
Interstate 610 between mile markers 1 and 4.
LAT...LON 3037 9105 3051 9039 3036 9025 3019 9043
3009 9041 3006 9037 3002 9018 3005 8997
2966 8961 2968 8964 2968 8966 2964 8966
2961 8963 2963 8968 2961 8973 2953 8966
2951 8967 2949 8998 2952 9000 2949 9024
TIME...MOT...LOC 1246Z 262DEG 17KT 3032 9092 2956 9021Local storm report, Aug 3, 9:57 AM CDT, 1 hour 55 minutes before
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</html>Local storm report, Aug 3, 11:22 AM CDT, 30 minutes before
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</html>Local storm report, Aug 3, 11:23 AM CDT, 29 minutes before
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</html>Local storm report, Aug 3, 11:31 AM CDT, 21 minutes before
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The site you requested is temporarily down for maintenance or an unexpected outage.
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Please try again in a few minutes.
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</html>The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 4:23 AM CDT | Special Marine Warning | LIX | 67 min | |
| Aug 3, 6:33 AM CDT | Special Weather Statement | LIX | Plaquemines | 27 min |
| Aug 3, 6:44 AM CDT | Special Weather Statement | LIX | Ascension, Lafourche, Saint James | 61 min |
| Aug 3, 7:47 AM CDT | Special Weather Statement | LIX | Saint Charles, Saint John the Baptist | 88 min |
| Aug 3, 8:42 AM CDT | Special Marine Warning | LIX | 63 min | |
| Aug 3, 8:50 AM CDT | Areal Flood Advisory | LIX | Orleans, Saint Bernard | 19 min |
| Aug 3, 9:09 AM CDT | Flash Flood Warning | LIX | Orleans | 2 hr |
| Aug 3, 10:04 AM CDT | Special Marine Warning | LIX | 86 min | |
| Aug 3, 10:24 AM CDT | Special Marine Warning | LIX | 96 min | |
| Aug 3, 10:40 AM CDT | Areal Flood Advisory | LIX | Ascension, East Baton Rouge, Livingston | 90 min |
| Aug 3, 10:53 AM CDT | Areal Flood Advisory | LIX | Ascension, East Baton Rouge, Livingston | 77 min |
| Aug 3, 11:04 AM CDT | Special Marine Warning | LIX | 116 min | |
| Aug 3, 11:40 AM CDT | Special Marine Warning | LIX | 110 min | |
| Aug 3, 11:49 AM CDT | Special Marine Warning | LIX | 86 min | |
| Aug 3, 2:45 PM CDT | Flash Flood Warning | LIX | East Baton Rouge, Livingston | 4 hr |
| Aug 3, 3:00 PM CDT | Areal Flood Advisory | LIX | Jefferson, Orleans, Saint Charles, Saint John the Baptist | 3 hr |
| Aug 3, 3:28 PM CDT | Flash Flood Warning | LIX | Saint Charles, Saint John the Baptist | 2 hr |
| Aug 3, 3:39 PM CDT | Areal Flood Advisory | LIX | Jefferson, Orleans, Plaquemines, Saint Bernard | 119 min |
| Aug 3, 3:52 PM CDT | Areal Flood Advisory | LIX | Ascension, Saint Charles, Saint James, Saint John the Baptist | 103 min |
| Aug 3, 4:39 PM CDT | Areal Flood Advisory | LIX | Saint Charles, Saint James, Saint John the Baptist | 50 min |
| Aug 3, 4:53 PM CDT | Flash Flood Warning | LIX | Saint James, Saint John the Baptist | 39 min |
| Aug 3, 5:27 PM CDT | Areal Flood Advisory | LIX | Saint Tammany, Tangipahoa, Washington | 3 hr |
| Aug 3, 5:33 PM CDT | Areal Flood Advisory | LIX | Saint Tammany | 117 min |
| Aug 3, 6:33 PM CDT | Areal Flood Advisory | LIX | Hancock, Harrison | 117 min |
Nearby
Special Marine Warnings in Louisiana, 2021Every special marine warning 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.