Alert archive / Louisiana / River Flood Warnings in 2020
River Flood Warning 165, NWS New Orleans, LA
NWS New Orleans, LA issued this river flood warning at Jul 27, 2020, 2:10 PM CDT for Saint Tammany Parish, Louisiana. It took effect at Jul 27, 2020, 4:15 PM CDT. It was in force for 19 hr.
The area
The counties it named.
The facts
- Issued
- Jul 27, 2020, 2:10 PM CDT (19:10 UTC)
- In effect from
- Jul 27, 2020, 4:15 PM CDT
- Expired
- Jul 28, 2020, 11:00 AM CDT
- In force
- 19 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 Falaya River at Boston Street (CVEL1). The gauge peaked at 7.07 ft at Jul 27, 2020, 8:00 PM CDT.
- Action stage
- 5 ft
- Minor stage
- 6 ft
- Moderate stage
- 11 ft
- Major stage
- 17 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 07375175, 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 Jul 27, 12:03 PM CDT, 2 hours 7 minutes earlier.
Area forecast discussion, Jul 27, 12:03 PM CDT, 2 hours 7 minutes before
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Special weather statement, Jul 27, 8:38 AM CDT, 5 hours 32 minutes before
Special Weather Statement
National Weather Service New Orleans LA
838 AM CDT Mon Jul 27 2020
MSZ080>082-271415-
Jackson-Harrison-Hancock-
838 AM CDT Mon Jul 27 2020
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHERN HARRISON...
SOUTHERN HANCOCK AND SOUTHERN JACKSON COUNTIES...
At 838 AM CDT, radar indicated strong thunderstorms were located
along a line extending from near Pearlington to Gulfport to near Moss
Point. Movement was northwest at 15 mph.
Winds in excess of 30 mph are possible with these storms.
Locations impacted include...
Gulfport, Biloxi, Ocean Springs, Long Beach, Moss Point, Bay St.
Louis, Waveland, St. Martin, Diamondhead, Escatawpa, Gautier,
D'iberville, Latimer, Kiln, Pearlington, Lyman, Shoreline Park,
Stennis Space Center, Helena and Gulf Hills.
Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.
LAT...LON 3036 8841 3034 8845 3038 8878 3043 8885
3043 8899 3042 8901 3040 8886 3040 8900
3031 8926 3036 8928 3037 8935 3034 8938
3034 8934 3031 8933 3018 8950 3018 8957
3023 8962 3036 8966 3052 8933 3051 8840
TIME...MOT...LOC 1338Z 113DEG 12KT 3023 8952 3043 8908 3037 8857
24/RRSpecial weather statement, Jul 27, 9:19 AM CDT, 4 hours 51 minutes before
Special Weather Statement
National Weather Service New Orleans LA
919 AM CDT Mon Jul 27 2020
LAZ059>062-069-271445-
Orleans-Lower Plaquemines-St. Charles-Upper Lafourche-Upper
Jefferson-
919 AM CDT Mon Jul 27 2020
...A SHOWER WILL AFFECT SOUTHEASTERN ST. CHARLES...SOUTHWESTERN
ORLEANS...EAST CENTRAL LAFOURCHE AND CENTRAL JEFFERSON PARISHES...
At 918 AM CDT, a shower was located near Barataria, or 12 miles south
of Marrero, moving northeast at 10 mph.
Winds in excess of 30 mph are possible with this shower. This shower
has a history of producing brief rotation. Tropical funnel clouds
are possible with this shower.
Locations impacted include...
Timberlane, Harvey, Marrero, Belle Chasse, Gretna, Jean Lafitte,
Woodmere, Terrytown, Lafitte, Estelle and Barataria.
If outdoors, consider seeking shelter inside a building.
LAT...LON 2976 9029 2993 8999 2990 8998 2989 8999
2989 9001 2986 9003 2982 9007 2979 9006
2978 9007 2974 9007 2966 9001 2966 8997
2960 9020
TIME...MOT...LOC 1418Z 245DEG 11KT 2972 9017
24/RRSpecial weather statement, Jul 27, 9:43 AM CDT, 4 hours 27 minutes before
Special Weather Statement
National Weather Service New Orleans LA
943 AM CDT Mon Jul 27 2020
LAZ059>064-067>069-271515-
Orleans-Lower Plaquemines-Upper St. Bernard-St. Charles-Lower
Jefferson-Lower Lafourche-Upper Lafourche-Upper Plaquemines-Upper
Jefferson-
943 AM CDT Mon Jul 27 2020
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT WEST CENTRAL ST.
BERNARD...SOUTHEASTERN ST. CHARLES...SOUTHWESTERN ORLEANS...
SOUTHEASTERN LAFOURCHE...JEFFERSON AND NORTHWESTERN PLAQUEMINES
PARISHES...
At 942 AM CDT, radar indicated strong thunderstorms were located
along a line extending from Metairie to 6 miles southwest of Lafitte
to 9 miles west of Leeville. Movement was southeast at 10 mph.
Winds in excess of 30 mph are possible with these storms.
Locations impacted include...
New Orleans, Chalmette, Galliano, Avondale, Metairie, Marrero,
Harvey, Timberlane, Belle Chasse, Cut Off, Jefferson, Gretna,
Harahan, Westwego, Golden Meadow, Jean Lafitte, Port Fourchon, River
Ridge, Estelle and Leeville.
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.
LAT...LON 2916 9028 2915 9027 2920 9026 2919 9027
2934 9035 2922 9040 2923 9041 2937 9039
2965 9025 3004 9023 3002 9011 3007 8994
2955 8997 2929 9011 2927 9010 2910 9018
2909 9024
TIME...MOT...LOC 1442Z 293DEG 8KT 3001 9016 2963 9019 2926 9036
24/RRSpecial weather statement, Jul 27, 10:23 AM CDT, 3 hours 47 minutes before
Special Weather Statement
National Weather Service New Orleans LA
1023 AM CDT Mon Jul 27 2020
LAZ061>064-067>070-271600-
Orleans-Lower Plaquemines-Upper St. Bernard-Lower Jefferson-Lower St.
Bernard-Lower Lafourche-Upper Plaquemines-Upper Jefferson-
1023 AM CDT Mon Jul 27 2020
...A LINE OF SHOWERS WILL AFFECT NORTHWESTERN ST. BERNARD...
ORLEANS...SOUTHEASTERN LAFOURCHE...CENTRAL JEFFERSON AND NORTHWESTERN
PLAQUEMINES PARISHES...
At 1022 AM CDT, radar indicated showers were located along a line
extending from near Arabi to near Myrtle Grove to 6 miles west of
Port Fourchon. Movement was east at 15 mph.
Winds in excess of 30 mph are possible with these showers.
Locations impacted include...
New Orleans, Chalmette, Marrero, Harvey, East New Orleans,
Timberlane, Belle Chasse, Metairie, Gretna, Jean Lafitte, Lake
Catherine, Woodmere, Violet, Terrytown, Lafitte, Meraux, Poydras,
Myrtle Grove, Estelle and Leeville.
Torrential rainfall is also occurring with these showers, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.
LAT...LON 2924 9030 2964 9010 3002 9013 3006 8997
3015 8988 3010 8981 3017 8974 3015 8963
3002 8972 3000 8985 2993 8978 2965 8976
2943 8988 2943 8994 2949 8989 2943 9002
2925 8996 2909 9024
TIME...MOT...LOC 1522Z 269DEG 11KT 3002 9004 2965 9002 2913 9029
24/RRSpecial weather statement, Jul 27, 10:57 AM CDT, 3 hours 13 minutes before
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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 |
|---|---|---|---|---|
| Jul 27, 5:22 AM CDT | Areal Flood Advisory | LIX | Ascension, Assumption, East Baton Rouge, Iberville, Lafourche, Saint James | 3 hr |
| Jul 27, 5:26 AM CDT | Special Marine Warning | LIX | 2 hr | |
| Jul 27, 5:50 AM CDT | Special Weather Statement | LIX | Ascension | 25 min |
| Jul 27, 6:08 AM CDT | Areal Flood Advisory | LIX | Ascension, East Baton Rouge, Iberville, Livingston, West Baton Rouge | 3 hr |
| Jul 27, 6:24 AM CDT | Special Weather Statement | LIX | Lafourche | 36 min |
| Jul 27, 6:30 AM CDT | Tornado Warning | LIX | Lafourche, Terrebonne | 30 min |
| Jul 27, 6:40 AM CDT | Special Weather Statement | LIX | Jefferson | 35 min |
| Jul 27, 7:00 AM CDT | Special Weather Statement | LIX | Lafourche | 60 min |
| Jul 27, 7:14 AM CDT | Special Marine Warning | LIX | 91 min | |
| Jul 27, 7:18 AM CDT | Special Marine Warning | LIX | 87 min | |
| Jul 27, 7:22 AM CDT | Special Weather Statement | LIX | Terrebonne | 53 min |
| Jul 27, 7:45 AM CDT | Special Marine Warning | LIX | 60 min | |
| Jul 27, 7:46 AM CDT | Tornado Warning | LIX | Lafourche, Saint Charles | 30 min |
| Jul 27, 7:50 AM CDT | Special Marine Warning | LIX | 85 min | |
| Jul 27, 8:32 AM CDT | Special Weather Statement | LIX | Lafourche, Saint Charles | 28 min |
| Jul 27, 8:51 AM CDT | Severe Thunderstorm Warning | LIX | Jefferson, Lafourche, Saint Charles | 24 min |
| Jul 27, 9:14 AM CDT | Areal Flood Advisory | LIX | Saint Tammany | 3 hr |
| Jul 27, 9:19 AM CDT | Special Weather Statement | LIX | Saint Charles | 26 min |
| Jul 27, 9:21 AM CDT | Special Marine Warning | LIX | 39 min | |
| Jul 27, 9:27 AM CDT | Tornado Warning | LIX | Lafourche | 20 min |
| Jul 27, 9:33 AM CDT | Special Marine Warning | LIX | 57 min | |
| Jul 27, 9:43 AM CDT | Special Weather Statement | LIX | Jefferson | 32 min |
| Jul 27, 9:56 AM CDT | Areal Flood Advisory | LIX | Saint Tammany, Washington | 57 min |
| Jul 27, 9:59 AM CDT | Special Marine Warning | LIX | 31 min | |
| Jul 27, 10:03 AM CDT | Areal Flood Advisory | LIX | Jefferson, Orleans, Plaquemines, Saint Bernard, Saint Tammany | 3 hr |
| Jul 27, 10:09 AM CDT | Special Marine Warning | LIX | 2 hr | |
| Jul 27, 10:16 AM CDT | Special Marine Warning | LIX | 119 min | |
| Jul 27, 10:23 AM CDT | Special Weather Statement | LIX | Jefferson, Orleans | 37 min |
| Jul 27, 10:28 AM CDT | Flash Flood Warning | LIX | Saint Tammany, Washington | 2 hr |
| Jul 27, 10:31 AM CDT | Special Marine Warning | LIX | 89 min | |
| Jul 27, 10:56 AM CDT | Special Marine Warning | LIX | 2 hr | |
| Jul 27, 10:57 AM CDT | Special Weather Statement | LIX | Jefferson, Orleans | 63 min |
| Jul 27, 11:08 AM CDT | Areal Flood Advisory | LIX | Washington | 112 min |
| Jul 27, 11:21 AM CDT | Flash Flood Watch | LIX | Assumption, East Baton Rouge, East Feliciana, Iberville, Pointe Coupee, Saint Bernard and 7 more | 32 hr |
| Jul 27, 12:05 PM CDT | Special Weather Statement | LIX | Plaquemines | 85 min |
| Jul 27, 12:20 PM CDT | Special Marine Warning | LIX | 55 min | |
| Jul 27, 12:33 PM CDT | Special Marine Warning | LIX | 57 min | |
| Jul 27, 12:34 PM CDT | Special Marine Warning | LIX | 56 min | |
| Jul 27, 12:35 PM CDT | Special Marine Warning | LIX | 55 min | |
| Jul 27, 1:35 PM CDT | Areal Flood Advisory | LIX | Ascension, East Baton Rouge, East Feliciana, Iberville, Livingston, Pointe Coupee and 3 more | 2 hr |
| Jul 27, 1:54 PM CDT | Special Marine Warning | LIX | 36 min | |
| Jul 27, 2:44 PM CDT | Special Marine Warning | LIX | 31 min | |
| Jul 27, 2:51 PM CDT | Special Marine Warning | LIX | 54 min | |
| Jul 27, 4:27 PM CDT | Special Marine Warning | LIX | 33 min | |
| Jul 27, 8:38 AM CDT | Special Weather Statement | LIX | Hancock, Harrison, Jackson | 37 min |
| Jul 27, 10:39 AM CDT | Areal Flood Advisory | LIX | Pearl River | 2 hr |
| Jul 27, 2:21 PM CDT | Areal Flood Advisory | LIX | Jackson | 84 min |
Nearby
River Flood Warnings in Louisiana, 2020Every 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.