Southwest Pass of the Mississippi River to Port Fourchon Louisiana Marine Forecast
| Tonight...Southwest Winds Near 5 Knots. Seas 1 Foot Or Less. Dominant Period 4 Seconds. |
| Friday...West Winds Near 5 Knots Becoming South In The Late Morning And Afternoon. Seas Less Than 1 Foot. Dominant Period 4 Seconds. |
| Friday Night...Southwest Winds 5 To 10 Knots. Seas 1 Foot Or Less. Dominant Period 4 Seconds. |
| Saturday...Southwest Winds Near 5 Knots Becoming South In The Late Morning And Afternoon. Seas 1 Foot Or Less. Dominant Period 4 Seconds. Slight Chance Of Showers And Thunderstorms Through The Day. |
| Saturday Night...Southwest Winds 5 To 10 Knots. Seas 1 Foot Or Less. Dominant Period 7 Seconds. |
| Sunday...West Winds Near 5 Knots Becoming North Late In The Morning, Then Becoming South In The Afternoon. Seas 1 Foot Or Less. Dominant Period 5 Seconds. Slight Chance Of Showers And Thunderstorms In The Afternoon. |
| Sunday Night...Southwest Winds 5 To 10 Knots. Seas 1 Foot Or Less. Dominant Period 5 Seconds. |
| Monday...Southwest Winds Near 5 Knots Becoming Southeast In The Late Morning And Afternoon. Seas 1 Foot Or Less. Dominant Period 5 Seconds. Slight Chance Of Showers And Thunderstorms. |
| Monday Night...Southwest Winds 5 To 10 Knots. Seas 1 To 2 Feet. Dominant Period 5 Seconds. |
| Tuesday...Southwest Winds Near 5 Knots Becoming South In The Late Morning And Afternoon. Seas 1 Foot Or Less. Dominant Period 5 Seconds. Chance Of Showers And Thunderstorms. |
| Tuesday Night...South Winds 5 To 10 Knots. Seas 1 To 2 Feet. Dominant Period 4 Seconds. Slight Chance Of Showers And Thunderstorms After Midnight. |
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Synopsis for Pascagoula to SW Pass Mississippi - GMZ501 Synopsis for SW Pass Mississippi River to Atchafalaya River- GMZ500 352 PM CDT Thu Aug 6 2020 Weak high pressure will prevail across the northern Gulf through this weekend and into next week. |
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Area Forecast Discussion National Weather Service New Orleans LA 411pm CDT Thu August 6 2020 Short Term Similar convective outcome as yesterday with limited convection on suppressed gulf breeze convergence zone over Terrebonne Parish, moving SE towards to coast. Once again, this will become part of the nocturnal land breeze process for the near coastal waters overnight. Still a weak surface pressure pattern with a third day of marginal stagnation for a little more haziness Friday over much of the area in the morning, then partly cloudy and warm for persistent temperatures Friday and Saturday. Rain chances should remain slightly less than normal through Sunday before trending upward. Long Term Surface flow becomes more onshore oriented later Sunday through much of next week to bring rain chances higher each day, mainly on sea breeze regime but somewhat enhanced by a frontolytic boundary that will be lingering and masking the sea breeze. Temperatures should be tamped by increased cloud and rain coverage during the extended period. Marine Continuation of light winds and low seas for the much of the period. There will be a brief period of a ground swell train with a period 8 seconds dampening out Saturday, which may provide a duration of 2-3 foot swell, but currently will indicate a significant wave 1-2 feet Saturday as the secondary period from the Yucatan Channel will aid in dampening the Florida Straits longer period swell. NOAA New Orleans LA Office: Watches - Warnings - Advisories LA...None. GM...None. MS...None. GM...None. |
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