Port Sulphur, LA Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Port Sulphur, LA

June 21, 2024 1:04 PM CDT (18:04 UTC) Change Location
Sunrise 5:58 AM   Sunset 8:05 PM
Moonrise 8:13 PM   Moonset 5:14 AM 
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NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

Marine Forecasts
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GMZ538 Expires:202406220345;;412654 Fzus54 Klix 211523 Cwflix
coastal waters forecast national weather service new orleans la 1023 am cdt Fri jun 21 2024
pascagoula to atchafalaya river out to 60 nm
seas are provided as a range of the average height of the highest 1/3 of the waves - .along with the occasional height of the average highest 10 percent of the waves.
gmz536-538-220345- chandeleur sound-breton sound- 1023 am cdt Fri jun 21 2024

Rest of today - East winds 10 to 15 knots. Waves 2 to 3 feet. A slight chance of showers and Thunderstorms late this morning.

Tonight - Southeast winds 5 to 10 knots. Waves around 2 feet in the evening, then 1 foot or less.

Saturday - Northeast winds 5 to 10 knots, becoming east in the afternoon. Waves 1 foot or less.

Saturday night - South winds 5 to 10 knots. Waves 1 foot or less.

Sunday - Northwest winds around 5 knots, becoming southeast in the afternoon. Waves 1 foot or less, then 1 to 2 feet in the afternoon. A slight chance of showers and Thunderstorms in the morning.

Sunday night - Southwest winds 5 to 10 knots. Waves around 2 feet.

Monday - West winds 5 to 10 knots, becoming south in the afternoon. Waves 1 foot or less, then 1 to 2 feet in the afternoon. A slight chance of showers and Thunderstorms in the morning, then a chance of showers and Thunderstorms in the afternoon.

Monday night - Southwest winds 10 to 15 knots. Waves 2 to 3 feet. A slight chance of showers and Thunderstorms in the evening, then a chance of showers and Thunderstorms after midnight.

Tuesday - West winds 5 to 10 knots, becoming southwest in the afternoon. Waves 1 to 2 feet. A chance of showers and Thunderstorms.

Tuesday night - Southwest winds 10 to 15 knots. Waves 2 to 3 feet. A slight chance of showers and Thunderstorms in the evening, then a chance of showers and Thunderstorms after midnight.
winds and waves higher in and near Thunderstorms.

GMZ500 1023 Am Cdt Fri Jun 21 2024

Synopsis for pascagoula to atchafalaya river out 60 nm -
a gradual decrease in wind speeds and seas is expected to continue today as the pressure gradient weakens. Lighter southerly flow will persist through the weekend with a more typical summer regime setting in.


7 Day Forecast for Marine Location Near Port Sulphur, LA
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Area Discussion for - New Orleans/Baton Rouge, LA
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FXUS64 KLIX 211759 AFDLIX

Area Forecast Discussion National Weather Service New Orleans LA 1259 PM CDT Fri Jun 21 2024

New AVIATION

SHORT TERM
(Today through Saturday)
Issued at 315 AM CDT Fri Jun 21 2024

While the low level circulation of former Tropical Storm Alberto dissipated yesterday afternoon, the mid and upper circulation can still be seen on water vapor exiting the west coast of Mexico early this morning. The Central American Gyre looks to aid the development of another low and mid level circulation over the Bay of Campeche today. The upper ridge that had been over the Mid Atlantic States is reforming to the west-southwest, centered near Evansville, Indiana early this morning. Invest 92L was noted off the Florida East Coast to the east of Jacksonville.

The pressure gradient between high pressure to the north and low pressure near the Bay of Campeche is not as strong this morning has it has been for much of the week, meaning winds are quite a bit lighter this morning. To this point of the morning, northeasterly winds haven't been particularly effective in pulling drier air into the area quite yet. Temperatures at 3 AM CDT ranged from the mid 70s to lower 80s across the area. Dew points ranged from the upper 60s over southwest Mississippi to the mid 70s near and south of Interstate 10. There was a patch of mid level cloud cover near the Alabama-Mississippi border moving westward that could briefly produce cloudy skies this morning.
Radar was picking up a few very small rain showers this morning, but areal coverage is so small at this point that very few, if any, people will experience them. It was rather tough to find any stations reporting measurable rainfall yesterday, and it will be even tougher today.

The upper ridge will continue to sink south and southwest today and Saturday, with the axis from eastern New Mexico to the Florida Panhandle by Saturday evening. This will continue to gradually dry out the column over the next 36 hours. Precipitable water values near 1.6 inches last night should dry out to 1.1 inches across the north to about 1.5 across the south by Saturday afternoon. While we can't totally rule out a few showers or thunderstorms today, a 20 to 25 percent chance of measurable precipitation west of Interstate 55 this afternoon is probably overstating things. Any convection on Saturday is likely to remain offshore, and possibly not even there.

As the atmosphere dries out over the next couple of days, cloud cover will be more limited, and we should heat up a couple of degrees from yesterday in most areas, and a couple degrees more on Saturday. With slightly lower dew points expected, that should keep heat index values between 100 and 107F, just below advisory criteria of 108F.

LONG TERM
(Saturday night through Thursday)
Issued at 315 AM CDT Fri Jun 21 2024

The upper ridge will continue to work its way westward Sunday through midweek, and be centered near the Arizona-New Mexico border by Tuesday/Wednesday. As troughing develops near the Atlantic Coast, that will up the local area in northwesterly mid level flow by midweek. The eastward extension of the ridge axis may keep any thunderstorm development isolated Monday afternoon, but as we get into Tuesday and beyond, moisture levels are likely to become sufficient enough for scattered thunderstorm development. If there is going to be any concern for severe weather or heavy rainfall, it wouldn't occur much before Wednesday or Thursday.

The larger concern for Sunday into at least the early portion of the week will be the potential for heat related issues. With highs well into the 90s, and moisture returning, heat index values look to top out in the 105 to 110F range on Sunday in some areas, and perhaps a few notches higher on Monday over a larger area. That may necessitate Heat Advisories over portions of the area in later forecasts. Beyond Monday, afternoon thunderstorms should have high temperatures top out a few degrees lower than Sunday/Monday.
Didn't depart very far from NBM deterministic highs, but did bump up overnight lows a notch.

AVIATION
(18Z TAFS)
Issued at 1253 PM CDT Fri Jun 21 2024

A mix of MVFR to VFR conditions are in place as SCT to BKN CU field has developed across the region. at issuance time. Radar does show isolated showers. Not carrying VCSH as coverage is quite low, but will have to likely make short-term adjustments to TAFs.
Subsidence aloft will slowly increase with time as upper level ridge builds in from the northeast which should gradually decrease cloud coverage. That may coincide loss of daytime heating, but SKC should carry over through the overnight period. No impacts expected overnight or tomorrow.

MARINE
Issued at 315 AM CDT Fri Jun 21 2024

Wind speeds have relaxed below 20 knots across the open waters and even lower over the protected waters. Have cancelled the Small Craft Advisory over any remaining waters and replaced it with Small Craft Exercise Caution headlines over primarily the western open waters. Will leave the Coastal Flood Advisory in place through the high tide cycle this afternoon, and let day shift take a look at conditions this morning to see how extensive an area may need one for Saturday's high tide cycle, or whether it can be eliminated entirely this afternoon. Once winds drop off this afternoon, the only real concern for mariners will be the potential for thunderstorms, and that should be rather limited until perhaps Tuesday or Wednesday.

PRELIMINARY POINT TEMPS/POPS
MCB 70 95 73 95 / 0 0 0 0 BTR 74 98 76 97 / 10 10 0 10 ASD 71 95 76 95 / 0 10 0 10 MSY 77 94 78 94 / 0 10 0 20 GPT 73 93 76 93 / 0 10 0 10 PQL 71 97 75 97 / 0 0 0 0

LIX WATCHES/WARNINGS/ADVISORIES
LA...Coastal Flood Advisory until 6 PM CDT this evening for LAZ058- 060-066>070-076>078-080-082-084-086-087.

GM...None.
MS...Coastal Flood Advisory until 6 PM CDT this evening for MSZ086>088.

GM...None.




Weather Reporting Stations
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Stations Dist Age Wind AirWater WavesinHgDewPt
SHBL1 - 8761305 - Shell Beach, LA 19 mi47 minE 13G17 85°F 76°F30.15
GISL1 - 8761724 - Grand Isle, LA 29 mi47 min 83°F
PILL1 35 mi47 minESE 8.9G12 84°F 81°F30.14
CARL1 36 mi47 min 82°F
NWCL1 - 8761927 - New Canal, LA 39 mi47 minE 11G16 86°F 84°F30.15
BYGL1 - 8762482 - Bayou Gauche, LA 44 mi47 min 88°F 83°F30.14
PSTL1 - 8760922 - Pilot's East, SW Pass, LA 48 mi47 minE 15G17 79°F 81°F30.12
BURL1 - Southwest Pass, LA 49 mi65 min18G19


Wind History for Shell Beach, LA
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
Link to 1 hour of 5 minute data for KBVE
   
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Wind History graph: BVE
(wind in knots)
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Tide / Current for Gardner Island, Breton Sound, Louisiana
   
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Gardner Island
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Fri -- 05:13 AM CDT     Moonset
Fri -- 05:57 AM CDT     Sunrise
Fri -- 10:25 AM CDT     2.05 feet High Tide
Fri -- 08:01 PM CDT     Sunset
Fri -- 08:10 PM CDT     Full Moon
Fri -- 08:12 PM CDT     Moonrise
Fri -- 10:16 PM CDT     -0.53 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Gardner Island, Breton Sound, Louisiana, Tide feet
12
am
-0.2
1
am
-0
2
am
0.2
3
am
0.5
4
am
0.8
5
am
1
6
am
1.3
7
am
1.6
8
am
1.8
9
am
2
10
am
2
11
am
2
12
pm
1.9
1
pm
1.8
2
pm
1.5
3
pm
1.2
4
pm
0.9
5
pm
0.5
6
pm
0.2
7
pm
-0.1
8
pm
-0.3
9
pm
-0.5
10
pm
-0.5
11
pm
-0.5


Tide / Current for Shell Beach, Lake Borgne, Louisiana
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Shell Beach
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Fri -- 01:20 AM CDT     -0.39 feet Low Tide
Fri -- 05:13 AM CDT     Moonset
Fri -- 05:58 AM CDT     Sunrise
Fri -- 02:06 PM CDT     1.78 feet High Tide
Fri -- 08:02 PM CDT     Sunset
Fri -- 08:10 PM CDT     Full Moon
Fri -- 08:14 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Shell Beach, Lake Borgne, Louisiana, Tide feet
12
am
-0.3
1
am
-0.4
2
am
-0.4
3
am
-0.3
4
am
-0.1
5
am
0
6
am
0.2
7
am
0.5
8
am
0.7
9
am
1
10
am
1.2
11
am
1.4
12
pm
1.6
1
pm
1.7
2
pm
1.8
3
pm
1.8
4
pm
1.7
5
pm
1.5
6
pm
1.3
7
pm
1
8
pm
0.7
9
pm
0.4
10
pm
0.1
11
pm
-0.1


Weather Map
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GEOS Local Image of Southern Mississippi Valley   
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New Orleans/Baton Rouge, LA,




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