River Flood Warning 246, NWS New Orleans, LA

573 
WGUS84 KLIX 161818
FLSLIX

Flood Statement
National Weather Service New Orleans LA
Issued by National Weather Service Mobile AL
118 PM CDT Thu Sep 16 2021

...The Flood Warning continues for the following rivers in 
Louisiana...

  Amite River At Maurepas affecting Livingston Parish.

For the Amite And Comite Rivers...including Maurepas...Minor 
flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Additional information is available at www.weather.gov.

The next statement will be issued when updates occur.

&&


LAC063-170200-
/O.CON.KLIX.FL.W.0246.000000T0000Z-210917T0200Z/
/MAUL1.1.ER.210915T1830Z.210916T0200Z.210916T2000Z.NO/
118 PM CDT Thu Sep 16 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Amite River At Maurepas.
* Until late this evening.
* At 10:00 AM CDT Thursday the stage was 4.0 feet.
* Flood stage is 4.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Forecast...The river is expected to remain near flood stage 
  through this evening.
* Impact...At 4.0 feet, Low-lying roads near Lake Maurepas will 
  begin to flood. Louisiana Trace will have standing water in some 
  places. Several roads between Killian and Maurepas will be 
  impacted.


&&

LAT...LON 3034 9054 3025 9056 3026 9066 3035 9064

$$

21/CLL

609 
WGUS84 KLIX 170000
FLSLIX

Flood Statement
National Weather Service New Orleans LA
700 PM CDT Thu Sep 16 2021

...The Flood Warning is extended for the following rivers in 
Louisiana...

  Amite River At Maurepas affecting Livingston Parish.

For the Amite And Comite Rivers...including French Settlement, 
Maurepas...Minor flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Additional information is available at www.weather.gov/lix.  Click 
on the Rivers and Lakes menu for forecasts and observations.

The next statement will be issued when updates are needed.

&&


LAC063-171715-
/O.EXT.KLIX.FL.W.0246.000000T0000Z-210917T1710Z/
/MAUL1.1.ER.210915T1830Z.210916T0200Z.210917T1110Z.NO/
700 PM CDT Thu Sep 16 2021

...The Flood Warning is now in effect until early tomorrow 
afternoon...

The Flood Warning continues for
  the Amite River At Maurepas.
* Until early tomorrow afternoon.
* At 6:00 PM CDT Thursday the stage was 4.1 feet.
* Flood stage is 4.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Forecast...The river is expected to rise to a crest of 4.3 feet 
  late tonight.
* Impact...At 4.0 feet, Low-lying roads near Lake Maurepas will 
  begin to flood. Louisiana Trace will have standing water in some 
  places. Several roads between Killian and Maurepas will be 
  impacted.


&&

LAT...LON 3034 9054 3025 9056 3026 9066 3035 9064

$$

JFL

010 
WGUS84 KLIX 171414
FLSLIX

Flood Statement
National Weather Service New Orleans LA
914 AM CDT Fri Sep 17 2021

...The Flood Warning is cancelled for the following rivers in 
Louisiana...

  Amite River At Maurepas affecting Livingston Parish.

LAC063-171515-
/O.CAN.KLIX.FL.W.0246.000000T0000Z-210917T1414Z/
/MAUL1.1.ER.210915T1830Z.210916T0200Z.210917T0830Z.NO/
914 AM CDT Fri Sep 17 2021

...The Flood Warning for the Amite River At Maurepas has been 
cancelled...

The Flood Warning is cancelled for
  the Amite River At Maurepas.
* At 8:00 AM CDT Friday the stage was 4.0 feet.
* Flood stage is 4.0 feet.
* Forecast...The river is expected to fall to 2.7 feet late Monday 
  morning.


&&

LAT...LON 3034 9054 3025 9056 3026 9066 3035 9064

$$

CAB

Area Forecast Discussion
National Weather Service New Orleans LA
340 AM CDT Wed Sep 15 2021

.SYNOPSIS...

Looks like the weakening center of TD Nicholas is somewhere around
Lake Charles early this morning. Drier air has been wrapping
around the southwest quadrant of the storm. Satellite appearance
this morning is more resembling of an extra-tropical pattern. An
east-west deformation zone lies just to the north of the area,
with several bands of precipitation oriented SW-NE across the
area. Right now, the best low level moisture convergence appears
to be approaching Interstate 55. Precipitable water values from
00z soundings around the area remained in the 2.2-2.6 range.
Temperatures and dew points were in the 70s across the area.

&&

.SHORT TERM (through Friday)...

Main concern will, of course, be heavy rainfall, with the largest
portion of it to occur in the next 12-18 hours. Precipitable water
values never really fall off to any great extent, remaining above
2 inches across the entire area, and above 2.25 for about the
southeast half.

Hourly rainfall rates in the deformation band to the north of the
area are generally in the 0.5 inch range, but more like 1.5 to 2
inches (and possibly higher) in the bands crawling eastward
(propagation 5-10 knots) across southeast Louisiana. 24 hour
precipitation totals from early this morning through tonight are
expected to be in the 3-6 inch range, with locally much higher
amounts, mainly near and to the east of Interstate 55. West of
there, totals may be more in the 1-3 inch range, and if we can
get the system to move a little further east, we may be able to
clear the far western portions of the Flash Flood Watch later
today. Will hold onto it for this forecast cycle, though. Still
also possible to have a few weak tornadoes in these feeder bands
as several storms have continued to show some low level rotation.

Unfortunately, with Nicholas expected to eventually dissipate near
the area, we don't see any real significant drying in the short
term period. Upper troughing will remain in place, and with
convective temperatures in the mid 80s, daytime convection will
continue. It won't be as widespread as it is today, but the threat
for isolated heavy rain amounts will continue for much of the
area. Likely to categorical rain chances each day, with high
temperatures remaining mainly in the 80s.

Will hold onto the Coastal Flood Advisory through the early
morning high tide cycle Thursday with the onshore flow gradually
weakening a little more. Still some isolated problems possible. 35

&&

.LONG TERM (Friday night and beyond)...

Weak troughing across the Lower Mississippi River Valley will not be
in any rush to depart the area this weekend. Moisture levels as
measured by precipitable water values, will remain in excess of 2
inches across most or all of the area through at least the
weekend, and likely beyond. Daily rounds of showers and
thunderstorms are expected to continue each day, being most
numerous over land during the day, and over marine areas at night.
Opted not to make significant changes to temperature forecast.
High temperatures will be more of a function of when thunderstorms
occur each day with convective temperatures in the lower and
middle 80s. 35

&&

.AVIATION...

Most terminals at 08z are in the MVFR to IFR range and likely to
remain there for much of the forecast period. Could see some
improvement toward evening. Wind gusts in excess of 25 knots at
KNEW should subside over the next few hours. There's been little
in the way of lightning overnight and any mention will be limited
today. We'll handle any significant development (if there is any)
with amendments. 35

&&

.MARINE...

Hazardous winds and seas will gradually subside over the next 12
hours. Most winds in excess of 20 knots are mainly associated with
convective bands at this time, although not much lightning
involved. Will allow the Small Craft Advisory to expire on
schedule for the open coastal waters at 12z, but hold onto Small
Craft Exercise Caution headlines for all waters during the daytime
hours as conditions relax. Beyond the first 12 hours of the
forecast, the main marine concern will be the threat of
thunderstorms. 35

&&

.PRELIMINARY POINT TEMPS/POPS...
MCB  77  70  82  71 / 100  70  80  40
BTR  81  71  83  71 / 100  60  80  40
ASD  82  72  86  74 / 100  80  90  50
MSY  84  76  87  76 /  90  70  80  50
GPT  81  73  84  75 / 100  90  90  60
PQL  80  71  83  73 / 100  90  90  60

&&

.LIX WATCHES/WARNINGS/ADVISORIES...
LA...Flash Flood Watch through Thursday morning for LAZ034>037-039-
     046>050-056>061-063>072-075>078.

     Coastal Flood Advisory until 7 AM CDT Thursday for LAZ064-
     066>070-076-078.

GM...Small Craft Advisory until 7 AM CDT this morning for GMZ550-552-
     555-557-570-572-575-577.

MS...Flash Flood Watch through Thursday morning for MSZ068>071-077-
     080>082.

     Coastal Flood Advisory until 7 AM CDT Thursday for MSZ080-081.

GM...Small Craft Advisory until 7 AM CDT this morning for GMZ552-555-
     557-570-572-575-577.

&&

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1131 AM CDT WED SEP 15 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0630 AM     FLASH FLOOD      2 ENE DENHAM SPRINGS    30.49N 90.92W
09/15/2021                   LIVINGSTON         LA   BROADCAST MEDIA

            EDEN CHURCH RD IMPASSABLE AND BARRICADED.
            RELAYED VIA SOCIAL MEDIA.

&&

LIX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1137 AM CDT WED SEP 15 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0645 AM     FLASH FLOOD      3 ESE WALKER            30.47N 90.82W
09/15/2021                   LIVINGSTON         LA   BROADCAST MEDIA

            CORNER OF CHELSEA ST AND BLACK MUD RD
            BARRICADED. RELAYED VIA SOCIAL MEDIA.

&&

LIX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1139 AM CDT WED SEP 15 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0630 AM     MARINE TSTM WIND 1 NNE BAY SAINT LOUIS   30.33N 89.33W
09/15/2021  M49 MPH          GMZ532             MS   MESONET

            BAY WAVELAND NOS SITE MEASURED A WIND GUST
            OF 49 MPH.

&&

LIX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1141 AM CDT WED SEP 15 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0410 AM     MARINE TSTM WIND 1 SW MANDEVILLE         30.36N 90.09W
09/15/2021  M41 MPH          GMZ530             LA   MESONET

            WEATHERFLOW OBSERVATION AT SUNSET PIER IN
            MANDEVILLE MEASURED ANOTHER WIND GUST TO 41
            MPH.

&&

LIX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1143 AM CDT WED SEP 15 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0301 AM     MARINE TSTM WIND 12 SSW MANDEVILLE       30.20N 90.12W
09/15/2021  E39 MPH          GMZ530             LA   MESONET

            WEATHERFLOW OBSERVATION AT THE MIDPOINT OF
            THE CAUSEWAY MEASURED A WIND GUST OF 39 MPH.

&&

LIX

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1150 AM CDT WED SEP 15 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0710 PM     FLASH FLOOD      1 N GARDERE             30.38N 91.13W
09/13/2021                   EAST BATON ROUGE   LA   BROADCAST MEDIA

            STREET FLOODING REPORTED VIA SOCIAL MEDIA.

1119 AM     FLASH FLOOD      3 S LAPLACE             30.03N 90.46W
09/14/2021                   ST. CHARLES        LA   PUBLIC

            STREET/ROAD FLOODING; STREET/ROAD CLOSED;
            VEHICLES STRANDED.

0256 AM     FLASH FLOOD      LULING                  29.93N 90.36W
09/15/2021                   ST. CHARLES        LA   EMERGENCY MNGR

            WATER IN HOMES AND NUMEROUS ROADS FLOODED.

0301 AM     MARINE TSTM WIND 12 SSW MANDEVILLE       30.20N 90.12W
09/15/2021  E39 MPH          GMZ530             LA   MESONET

            WEATHERFLOW OBSERVATION AT THE MIDPOINT OF
            THE CAUSEWAY MEASURED A WIND GUST OF 39 MPH.

0301 AM     FLASH FLOOD      MONTZ                   30.01N 90.47W
09/15/2021                   ST. CHARLES        LA   EMERGENCY MNGR

            WATER IN HOMES AND NUMEROUS ROADS FLOODED.

0303 AM     FLASH FLOOD      BAYOU GAUCHE            29.80N 90.43W
09/15/2021                   ST. CHARLES        LA   EMERGENCY MNGR

            WATER IN HOMES AND NUMEROUS ROADS FLOODED.

0345 AM     MARINE TSTM WIND 1 SSW MANDEVILLE        30.36N 90.09W
09/15/2021  M43 MPH          GMZ530             LA   MESONET

            WEATHERFLOW OBSERVATION AT SUNSET PIER IN
            MANDEVILLE MEASURED A WIND GUST OF 43 MPH.

0405 AM     FLASH FLOOD      PARISHWIDE              30.67N 90.39W
09/15/2021                   TANGIPAHOA         LA   LAW ENFORCEMENT

            NUMEROUS ROADS CLOSED DUE TO FLOODING ACROSS
            THE PARISH.

0410 AM     MARINE TSTM WIND 1 SW MANDEVILLE         30.36N 90.09W
09/15/2021  M41 MPH          GMZ530             LA   MESONET

            WEATHERFLOW OBSERVATION AT SUNSET PIER IN
            MANDEVILLE MEASURED ANOTHER WIND GUST TO 41
            MPH.

0615 AM     FLASH FLOOD      2 ENE WALKER            30.49N 90.84W
09/15/2021                   LIVINGSTON         LA   PUBLIC

            MULTIPLE ROADS CLOSED DUE TO FLASH FLOODING
            IN WALKER. RELAYED VIA SOCIAL MEDIA.

0630 AM     MARINE TSTM WIND 1 NNE BAY SAINT LOUIS   30.33N 89.33W
09/15/2021  M49 MPH          GMZ532             MS   MESONET

            BAY WAVELAND NOS SITE MEASURED A WIND GUST
            OF 49 MPH.

0630 AM     FLASH FLOOD      2 ENE DENHAM SPRINGS    30.49N 90.92W
09/15/2021                   LIVINGSTON         LA   BROADCAST MEDIA

            EDEN CHURCH RD IMPASSABLE AND BARRICADED.
            RELAYED VIA SOCIAL MEDIA.

0645 AM     FLASH FLOOD      3 ESE WALKER            30.47N 90.82W
09/15/2021                   LIVINGSTON         LA   BROADCAST MEDIA

            CORNER OF CHELSEA ST AND BLACK MUD RD
            BARRICADED. RELAYED VIA SOCIAL MEDIA.

0700 AM     FLASH FLOOD      8 WSW TICKFAW           30.55N 90.62W
09/15/2021                   LIVINGSTON         LA   BROADCAST MEDIA

            PEA RIDGE RD AND WAGNER RD IMPASSABLE.
            RELAYED VIA SOCIAL MEDIA.

0715 AM     FLASH FLOOD      4 S BOGALUSA            30.72N 89.87W
09/15/2021                   WASHINGTON         LA   BROADCAST MEDIA

            ROADS FLOODED AROUND THE LEES CREEK AREA.
            RELAYED VIA SOCIAL MEDIA.

0715 AM     MARINE TSTM WIND 2 SE EDEN ISLE          30.21N 89.78W
09/15/2021  M41 MPH          ST. TAMMANY        LA   MESONET

            WEATHERFLOW OBSERVATION RECORDED A WIND GUST
            OF 41 MPH.

0715 AM     FLASH FLOOD      6 WSW TICKFAW           30.54N 90.57W
09/15/2021                   LIVINGSTON         LA   BROADCAST MEDIA

            N CAFE LINE RD IMPASSABLE FROM DRAKE LN TO
            HWY 1064. RELAYED VIA SOCIAL MEDIA.

0742 AM     MARINE TSTM WIND 13 SSE GULFPORT         30.22N 88.97W
09/15/2021  M41 MPH          GMZ532             MS   PUBLIC

            WEATHERFLOW OBSERVATION AT SHIP ISLAND
            MEASURED A WIND GUST OF 41 MPH.

0812 AM     FLASH FLOOD      3 ENE GULFPORT          30.40N 89.02W
09/15/2021                   HARRISON           MS   PUBLIC

            ROADS FLOODED AROUND GULFPORT.

&&