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GMZ436 Atchafalaya And East Cote Blanche Bays- 250 Am Cst Sat Dec 2 2023
.dense fog advisory in effect until 3 pm cst this afternoon...
Today..Southwest winds 5 to 10 knots. Bay and inland waters light chop. A chance of Thunderstorms. Showers likely. Patchy dense fog early this morning. Areas of fog late this morning, then patchy fog this afternoon.
Tonight..Northwest winds 5 to 10 knots. Bay and inland waters light chop. A chance of showers and Thunderstorms in the evening. Patchy fog in the evening.
Sunday..Northwest winds 5 to 10 knots, becoming west in the afternoon. Bay and inland waters light chop.
Sunday night..West winds 5 to 10 knots. Bay and inland waters light chop.
Monday..Northwest winds around 10 knots. Bay and inland waters light chop.
Monday night..Northeast winds 5 to 10 knots. Bay and inland waters light chop.
Tuesday..North winds around 5 knots. Bay and inland waters smooth.
Tuesday night..Northwest winds 5 to 10 knots. Bay and inland waters light chop.
Wednesday..North winds 5 to 10 knots. Bay and inland waters light chop.
Wednesday night..Northeast winds 5 to 10 knots. Bay and inland waters light chop.
winds and waves higher in and near Thunderstorms.

GMZ400 250 Am Cst Sat Dec 2 2023
Synopsis..
areas of dense fog will continue this morning as warm moist air continues over the cooler sea surface. Some improvement in visibilities is expected across the western coastal waters after daybreak, with areas of dense fog lingering across the coastal waters east of cameron through mid afternoon. Lingering showers and Thunderstorms can be expected mainly across the eastern coastal waters today, diminishing by late afternoon and evening as a weak cool front brings light northwesterly winds across the coastal waters. Winds will eventually become light and variable by Sunday as the weak surface high pressure moves over the area.

FXUS64 KLIX 021823 AFDLIX

Area Forecast Discussion National Weather Service New Orleans LA 1223 PM CST Sat Dec 2 2023

New UPDATE

UPDATE
Issued at 1219 PM CST Sat Dec 2 2023

The Flash FLood Watch has been cancelled for all of the Louisiana zones as the last of any heavier rain showers has moved into MS. A few more isolated rain showers will remain possible this afternoon, but are expected to be light in nature. The heavier showers should clear the MS coast within the next 1-2 hours. HRL

SHORT TERM
(Today through Sunday)
Issued at 420 AM CST Sat Dec 2 2023

Main issue across the area this morning continues to be the severe weather and heavy rainfall threat. Overnight, several areas received in excess of two inches of rain and a few cells became severe. Currently, the severe threat is beginning to diminish and the tornado watch has been allowed to expire at 4AM. There is certainly a continued possibility of an isolated severe storm but overall the threat does not warrant an extension of the watch.
The flash flood watch will continue until 6AM this morning and at this time the plan is to let it expire as well.

The cold front is still off to the west and is slowly making progress towards the area. Southwest flow will continue until the front makes it through the area, allowing for rain chances to remain elevated throughout most of the day. After the front pushes through tomorrow, drier conditions will spread into the area for Sunday with temperatures remaining near 70 across most of the area before a cooler night Sunday night.

LONG TERM
(Sunday night through Friday)
Issued at 420 AM CST Sat Dec 2 2023

After the frontal passage, the area will settle into a drier pattern with temperatures returning closer to normal for the beginning of the work week and persisting into the middle of the week. By late in the week, temperatures will begin to moderate as onshore flow returns.

AVIATION
(18Z TAFS)
Issued at 1150 AM CST Sat Dec 2 2023

Terminals to the west are starting to see clearing conditions in terms of the rain, but low cigs will remain throughout the forecast period keeping MVFR/IFR conditions. ASD and eastward may still see isolated storms roll through bringing LIFR conditions at times. Overnight an area of moderate to dense fog looks to develop, bringing LIFR vis and cigs for most terminals by 12z.
This fog should clear out by 15z, slowly returning all terminals to VFR for the remainder of the period.

MARINE
Issued at 420 AM CST Sat Dec 2 2023

A cold front continues to very slowly drift towards the area with onshore flow remaining in place in advance of the front. A series of low pressure systems will pass north of the coastal waters. There is the potential for patchy fog nearshore early this morning, especially in areas where the rain has tapered off. A cold front will move through late Sunday allowing high pressure to finally build over the northern Gulf for the start of the new week diminishing winds and seas over the coastal waters.

PRELIMINARY POINT TEMPS/POPS
MCB 54 69 46 63 / 30 0 0 0 BTR 58 72 50 67 / 20 0 0 0 ASD 58 71 50 66 / 50 0 0 0 MSY 61 69 55 65 / 50 0 0 0 GPT 60 70 52 66 / 50 0 0 0 PQL 60 73 48 69 / 70 10 0 0

LIX WATCHES/WARNINGS/ADVISORIES
LA...None.
GM...None.
MS...Flood Watch until 3 PM CST this afternoon for MSZ083>088.

GM...None.

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Cocodrie
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Sat -- 01:20 AM CST     1.27 feet High Tide
Sat -- 06:39 AM CST     Sunrise
Sat -- 11:15 AM CST     Moonset
Sat -- 01:32 PM CST     -0.10 feet Low Tide
Sat -- 05:03 PM CST     Sunset
Sat -- 09:57 PM CST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION

Cocodrie, Terrebonne Bay, Louisiana, Tide feet

Shell Island
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Sat -- 06:42 AM CST     Sunrise
Sat -- 11:18 AM CST     Moonset
Sat -- 12:45 PM CST     -0.10 feet Low Tide
Sat -- 05:06 PM CST     Sunset
Sat -- 10:00 PM CST     Moonrise
Sat -- 11:48 PM CST     1.47 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Shell Island, Louisiana, Tide feet

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