Marine Weather Net

Stake Island, LA to Southwest Pass of the Mississippi River out 20 - 60 NM Marine Forecast


TODAY

E
WINDS
10
KNOTS

TONIGHT

SE
WINDS
10
KNOTS

WEDNESDAY

SE
WINDS
10
KNOTS

WEDNESDAY NIGHT

SE
WINDS
10
KNOTS

The Marine Weather Forecast In Detail:
GMZ575 Forecast Issued: 929 AM CDT Tue May 21 2024

Today...East Winds Around 10 Knots. Seas Around 2 Feet. Wave Detail: Southeast 2 Feet At 5 Seconds.
Tonight...Southeast Winds Around 10 Knots. Seas Around 2 Feet. Wave Detail: Southeast 2 Feet At 5 Seconds.
Wednesday...Southeast Winds Around 10 Knots. Seas Around 2 Feet. Wave Detail: Southeast 2 Feet At 6 Seconds.
Wednesday Night...Southeast Winds Around 10 Knots. Seas Around 2 Feet. Wave Detail: Southeast 2 Feet At 4 Seconds.
Thursday...Southeast Winds Around 10 Knots. Seas Around 2 Feet. Wave Detail: Southeast 2 Feet At 4 Seconds.
Thursday Night...Southeast Winds Around 10 Knots. Seas Around 2 Feet. Wave Detail: South 2 Feet At 5 Seconds.
Friday...South Winds Around 10 Knots. Seas Around 2 Feet. Wave Detail: South 2 Feet At 5 Seconds. A Slight Chance Of Showers In The Morning.
Friday Night...South Winds Around 10 Knots. Seas Around 2 Feet. Wave Detail: South 2 Feet At 5 Seconds.
Saturday...South Winds 5 To 10 Knots. Seas Around 2 Feet. Wave Detail: South 2 Feet At 5 Seconds.
Saturday Night...South Winds Around 10 Knots. Seas Around 2 Feet. Wave Detail: South 2 Feet At 5 Seconds.
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Area Forecast Discussion
National Weather Service New Orleans LA
619am CDT Tuesday May 21 2024

Long Term
(Friday through Monday) Issued at 259am CDT Tuesday May 21 2024

Going into Friday continuing to be noticeably hotter as 591dm ridging remains parked over Mexico into the Gulf. This will keep highs pretty hot generally into the mid 90's and with the return of low to mid 70 Td's, will introduce building heat indicies into the upper 90's to low 100's especially going into Memorial Day Weekend. Not seeing any excessive or dangerous heat indicies, but will be enough to be impactful for those outdoors for an extended period, especially given this being our first return of heat reaching these temperatures this season and many may not be too used to it just yet. Messaging going into the holiday weekend will be focused on taking precautions against the heat. Additionally, kept a warmer overnight low bias rolling with many areas not cooling much lower than the mid to upper 70's.

As for rain chances, still not seeing strong indications but as mentioned in yesterday's long-range discussion, will still need to keep an eye on the quasi-zonal flow aloft and subtle hints at weak mid-level impulses ridging from TX to the northern Gulf coast. No indications of any MCS (Mesoscale Convective System, a complex of thunderstorms which becomes organized on a scale larger than the individual thunderstorms) or cluster in recent runs, but will need to keep an eye on it in case anything tries to sneak into atleast nearby our area. For now, rolling with NBM deterministic Probability of Precipitation which keeps things dry for the most part this weekend. Some indications of a weak front arriving early next week, but that remains to be seen as far as rain coverage/chances and potential to counteract the heat some. Will keep an eye on that. KLG

Marine
Issued at 259am CDT Tuesday May 21 2024

The waters will continue to see a persistent southeasterly flow of around 10 knots through the weekend as high pressure dominates the northern Gulf. Seas will also be fairly consistent in the 1 to 3 feet range through the period, and there will be no risk of thunderstorm activity producing locally higher waves and seas. As a result, continued good boating conditions are anticipated through the upcoming holiday weekend.

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