Marine Weather Net

Port Fourchon Louisiana to Lower Atchafalaya River Louisiana Marine Forecast


REST OF TODAY

E
WINDS
15 - 20
KNOTS

TONIGHT

E
WINDS
15 - 20
KNOTS

THURSDAY

E
WINDS
15 - 20
KNOTS

THURSDAY NIGHT

E
WINDS
10 - 15
KNOTS

The Marine Weather Forecast In Detail:
GMZ550 Forecast Issued: 949 AM CDT Wed Oct 21 2020

SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH THURSDAY MORNING
Rest Of Today...East Winds 15 To 20 Knots. Seas 3 To 6 Feet With Occasional Seas To 8 Feet. Dominant Period 8 Seconds.
Tonight...East Winds 15 To 20 Knots. Seas 3 To 6 Feet. Dominant Period 8 Seconds.
Thursday...East Winds 15 To 20 Knots. Seas 3 To 6 Feet With Occasional Seas To 8 Feet. Dominant Period 8 Seconds. Chance Of Showers Through The Day.
Thursday Night...East Winds 10 To 15 Knots. Seas 3 To 5 Feet With Occasional Seas To 6 Feet. Dominant Period 7 Seconds. Chance Of Showers.
Friday...East Winds 5 To 10 Knots. Seas 2 To 4 Feet. Dominant Period 7 Seconds. Chance Of Showers And Slight Chance Of Thunderstorms.
Friday Night...Northeast Winds 5 To 10 Knots. Seas 2 To 4 Feet. Dominant Period 6 Seconds.
Saturday...Northeast Winds 5 To 10 Knots. Seas 2 To 4 Feet. Dominant Period 7 Seconds.
Saturday Night...East Winds 5 To 10 Knots. Seas 2 To 4 Feet. Dominant Period 6 Seconds.
Sunday...East Winds 5 To 10 Knots. Seas 1 To 2 Feet. Dominant Period 6 Seconds.
Sunday Night...Southeast Winds 10 To 15 Knots. Seas 2 To 4 Feet. Dominant Period 6 Seconds.
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Synopsis for Pascagoula to SW Pass Mississippi - GMZ501
Synopsis for SW Pass Mississippi River to Atchafalaya River- GMZ500
949 AM CDT Wed Oct 21 2020

High pressure to the northeast will remain settled through Thursday while an easterly wave moves through the gulf exiting the area by the end of the week.
Area Forecast Discussion
National Weather Service New Orleans LA
347am CDT Wednesday Oct 21 2020

Short Term
High pressure ridging in from the NE will maintain control of the weather for this area through Thursday with not much of any precipitation to speak of. Some patchy fog at a few sites by sunrise.

Long Term
Precipitation may linger into Friday night before shortwave ridging limits further rain chances through the weekend. Beyond the weekend, medium range models begin to have issues regarding upper system moving out of the 4 Corners area. GFS solution is much quicker in opening and ejecting wave eastward. For example, at 18z next Wednesday, GFS has upper ridging off the Carolina coast with the upper system over the Texas Panhandle. ECMWF (European Centre for Medium-Range Weather Forecasts) solution has upper ridging just about overtop of our area with the upper low near Phoenix. Quite a difference in sensible weather as we get into the mid and latter portions of the week, somewhat beyond the forecast period. For now, will keep low mention of precipitation for Monday and Tuesday with well above normal temperatures continuing.

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