Marine Weather Net

Lake Pontchartrain and Lake Maurepas Marine Forecast


REST OF TODAY

NW
WINDS
10 - 15
KNOTS

TONIGHT

NW
WINDS
5 - 10
KNOTS

SATURDAY

W
WINDS
5 - 10
KNOTS

SATURDAY NIGHT

W
WINDS
5 - 10
KNOTS

The Marine Weather Forecast In Detail:
GMZ530 Forecast Issued: 905 AM CST Fri Feb 23 2024

Rest Of Today...Northwest Winds 10 To 15 Knots With Gusts Up To 20 Knots. Waves 2 To 3 Feet.
Tonight...Northwest Winds 5 To 10 Knots. Waves Around 2 Feet.
Saturday...West Winds 5 To 10 Knots. Waves Around 2 Feet.
Saturday Night...West Winds 5 To 10 Knots. Waves Around 2 Feet In The Evening, Then 1 Foot Or Less.
Sunday...Southeast Winds 5 To 10 Knots, Becoming South 10 To 15 Knots In The Afternoon. Waves Around 2 Feet.
Sunday Night...South Winds 10 To 15 Knots With Gusts Up To 20 Knots, Diminishing To 5 To 10 Knots After Midnight. Waves 2 To 3 Feet.
Monday...South Winds 10 To 15 Knots. Waves 2 To 3 Feet.
Monday Night...South Winds 10 To 15 Knots. Waves 2 To 3 Feet.
Tuesday...South Winds 10 To 15 Knots. Waves 2 To 3 Feet.
Tuesday Night...South Winds 10 To 15 Knots. Waves 2 To 3 Feet.
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Area Forecast Discussion
National Weather Service New Orleans LA
1107am CST Fri Feb 23 2024

Long Term
(Monday through Thursday) Issued at 413am CST Fri Feb 23 2024

Medium range models initially in good agreement but start to deviate rather significantly heading into the middle of the work week. Looking at the operational GFS/ECMWF/GEM and their respective ensembles and the one model that appears to be the outlier is the ECMWF. The NBM is trying to take a middle of the road approach and will stick close to this for now however, later forecast may need to be adjusted quite a bit lower for the back half of the week.

Zonal flow to start the work week will continue through Wednesday. This will allow LL temps to continue to slowly climb and highs by Tuesday and Wednesday will likely climb into the upper 70s and lower 80s across much of the area. The big unknown in the extended is how models handle the current deep closed low west of the Pacific coast. If this low eventually opens up and phases with a strong s/w diving southeast across the PAC NW and over the 4 corners we should see a stronger cold front as a much deeper and sharper trough progress across the central CONUS. Cooler air will work much farther south with that system as it shoots a cold front through the area late Wednesday/Thursday. If the large closed PAC low remains its own entity it will hang back while the northern stream wave will be much weaker and it will struggle to send a cold front into the area.

At this time confidence is not very high at all in the forecast after Wednesday. Highs on Thursday range from the low 60s to near 80 depending on which solution you buy into. /CAB/

NOAA New Orleans LA Office: Watches - Warnings - Advisories
LA...None. GM...None. MS...None. GM...None.