Chalmette, LA Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Chalmette, LA

April 21, 2024 3:34 AM CDT (08:34 UTC) Change Location
Sunrise 6:24 AM   Sunset 7:32 PM
Moonrise 5:43 PM   Moonset 5:13 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.

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Marine Forecasts
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GMZ534 Lake Borgne- 941 Pm Cdt Sat Apr 20 2024

.small craft advisory in effect from Sunday evening through Monday morning - .

Rest of tonight - East winds around 5 knots, becoming northeast late. Waves 1 foot or less, then around 2 feet. A slight chance of showers and Thunderstorms late this evening and early morning, then a chance of showers and Thunderstorms late.

Sunday - North winds 10 to 15 knots with gusts up to 20 knots. Waves 2 to 3 feet. Showers likely with a chance of Thunderstorms in the morning, then a chance of showers in the afternoon.

Sunday night - North winds 15 to 20 knots with gusts up to 30 knots. Waves 3 to 4 feet.

Monday - Northeast winds 15 to 20 knots with gusts up to 30 knots, diminishing to 5 to 10 knots in the afternoon. Waves 2 to 4 feet in the morning, then 1 foot or less.

Monday night - Northeast winds 5 to 10 knots. Waves 1 foot or less.

Tuesday - East winds 5 to 10 knots. Waves around 2 feet.

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

Wednesday - East winds 5 to 10 knots. Waves 1 foot or less.

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

Thursday - East winds 5 to 10 knots. Waves 1 foot or less, then around 2 feet in the afternoon.

Thursday night - Southeast winds around 10 knots. Waves around 2 feet.
winds and waves higher in and near Thunderstorms.

GMZ500 941 Pm Cdt Sat Apr 20 2024

Synopsis for pascagoula to atchafalaya river out 60 nm -
southeast winds of 5 to 10 knots will persist through this afternoon, but a cold front will gradually shift winds to the north tonight into tomorrow. By tomorrow night, these northerly winds will strengthen to 15 to 25 knots and then linger into Monday. By Monday night, high pressure moving over the waters will allow the winds to relax back to 10 to 15 knots and also shift winds to the northeast and eventually southeast. These southeast winds of 10 to 15 knots will then remain in place into the middle of next week.


7 Day Forecast for Marine Location Near Chalmette, LA
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Area Discussion for - New Orleans/Baton Rouge, LA
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FXUS64 KLIX 210446 AFDLIX

Area Forecast Discussion National Weather Service New Orleans LA 1146 PM CDT Sat Apr 20 2024

New AVIATION

UPDATE
Issued at 816 PM CDT Sat Apr 20 2024

Primarily cleaned up temps and PoPs with this update. It looks like after a brief perk up showers and weak storms around 00 UTC things are fizzling again right behind the slowly sinking southward boundary. Already near 60F up in New Roads and McComb behind this front and we should see temps fall overnight across the northern half of the area as the front passes through. Light to moderate rain will be prevailing to kick off early morning hours as the stratiform rain and convection leftover from southeast Texas makes its way into the area.

SHORT TERM
(This evening through Sunday night)
Issued at 349 PM CDT Sat Apr 20 2024

A fairly broad upper level trough is currently moving east through the Great Lakes. The southern side of this feature is relatively flat at this time which is why the associated cold front draped across central Louisiana and southern Mississippi is struggling to make southward progression. The cold front will be basically crawling south in the CWA this afternoon. Visible satellite hasn't changed much from this morning and shows only partly cloudy skies south of the boundary across the Florida Parishes and coastal Mississippi. This has allowed for decent warming which should increase CAPE in the lower to mid levels. As that boundary reaches this region later this aftn, a few thunderstorms could develop along and north of I-12 in LA and southern portions of LA. Latest CAMs show various versions of this and am in agreement with this.
Severe potential not particularly high due to weak shear but fairly steep mid level lapse rates could be enough for a few marginally severe storms with hail.

A shortwave on the backside of the northern trough is moving on a much farther south trajectory and will be passing through the mid to lower Mississippi Valley Sunday afternoon. This is what'll be needed to finally drive that cold front completely through the CWA on Sunday morning. Ample moisture in place with lift from the front will be a good setup for increasing showers. Model soundings continue to show minimal instability anywhere throughout the column.
Thus, thinking it'll be fairly tough for much thunder to develop and therefore now only have isolated thunderstorms in the zone forecasts. Overall QPF shouldn't be impactful generally speaking with areal amounts under an inch. Coverage forecast of 80% could still be too low.

MEFFER

LONG TERM
(Monday through Friday night)
Issued at 349 PM CDT Sat Apr 20 2024

This cold front won't be particularly strong being that a shortwave it driving it, so only looking at a day (Monday) of below normal temps with moderating conditions quickly returning as well as above normal temps Tuesday onward. Precip forecast still looking generally dry with zonal flow transitioning into ridging. That'll be supportive of current moderating temps expected.

AVIATION
(06Z TAFS)
Issued at 1139 PM CDT Sat Apr 20 2024

Frontal boundary has crossed southern terminals with winds now prevailing out of the north at around 10 knots. Some gusts upwards of 20 knots will be possible later this morning into early afternoon. MVFR CIGs are gradually building in, IFR likely for most sites over the coming hours as -RA enters the area. Some TSRA impacts are now expected to cross areas just north of BTR and impact MCB by 0630 UTC. Some TS impacts cannot be ruled out elsewhere overnight, but should be intermittent and limited. RA will gradually wane through late morning and CIGs will improve into the early afternoon. VFR conditions expected to prevail at all terminals by 00 UTC Sunday evening.

MARINE
Issued at 349 PM CDT Sat Apr 20 2024

A surface high pressure is centered in the western Atlantic and extending across the Gulf of Mexico. The western periphery of this ridge is being broken down by approaching surface trough to the north of the area. Thus, onshore flow is weakening with most of the coastal waters staying light and variable until a cold front comes through early Sunday morning. Cold air advection won't be particularly strong with this boundary and thus likely only looking at about 12 to 18 hours of low-end Small Craft conditions.

PRELIMINARY POINT TEMPS/POPS
MCB 51 62 43 69 / 90 40 0 0 BTR 59 68 48 74 / 80 50 0 0 ASD 59 70 48 74 / 70 60 0 0 MSY 63 71 55 72 / 90 60 0 0 GPT 58 69 49 73 / 60 60 0 0 PQL 58 71 47 75 / 50 60 0 0

LIX WATCHES/WARNINGS/ADVISORIES
LA...None.
GM...Small Craft Advisory from 7 PM Sunday to 10 AM CDT Monday for GMZ530-532-534-536-538-550-552-555-557-570-572-575-577.

MS...None.
GM...Small Craft Advisory from 7 PM Sunday to 10 AM CDT Monday for GMZ532-534-536-538-550-552-555-557-570-572-575-577.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
NWCL1 - 8761927 - New Canal, LA 10 mi47 min NNW 13G24 65°F 75°F30.05
CARL1 12 mi47 min 64°F
SHBL1 - 8761305 - Shell Beach, LA 16 mi47 min NNW 14G19 70°F 71°F29.99
BYGL1 - 8762482 - Bayou Gauche, LA 30 mi47 min 64°F 80°F30.04
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 39 mi47 min NNW 11G13 73°F 79°F29.97


Wind History for New Canal Station, LA
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KNEW LAKEFRONT,LA 6 sm41 minNNW 25G3610 smOvercast66°F61°F83%30.04
KNBG NEW ORLEANS NAS JRB/ALVIN CALLENDER FIELD,LA 13 sm39 minNNW 16G2810 smOvercast68°F63°F83%30.01
KMSY LOUIS ARMSTRONG NEW ORLEANS INTL,LA 18 sm41 minNNW 16G2510 smOvercast64°F61°F88%30.05
Link to 5 minute data for KNEW


Wind History from NEW
(wind in knots)
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Tide / Current for Paris Road Bridge, Mississippi River Delta, Louisiana
   
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Paris Road Bridge
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Sun -- 04:12 AM CDT     0.55 feet High Tide
Sun -- 05:13 AM CDT     Moonset
Sun -- 06:25 AM CDT     Sunrise
Sun -- 09:43 AM CDT     0.50 feet Low Tide
Sun -- 02:47 PM CDT     0.63 feet High Tide
Sun -- 05:42 PM CDT     Moonrise
Sun -- 07:31 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Paris Road Bridge, Mississippi River Delta, Louisiana, Tide feet
12
am
0.4
1
am
0.5
2
am
0.5
3
am
0.5
4
am
0.5
5
am
0.5
6
am
0.5
7
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0.5
8
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0.5
9
am
0.5
10
am
0.5
11
am
0.5
12
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0.5
1
pm
0.6
2
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0.6
3
pm
0.6
4
pm
0.6
5
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0.6
6
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0.5
7
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0.5
8
pm
0.4
9
pm
0.3
10
pm
0.3
11
pm
0.3



Tide / Current for Shell Beach, Lake Borgne, Louisiana
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Shell Beach
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Sun -- 03:25 AM CDT     0.65 feet High Tide
Sun -- 05:12 AM CDT     Moonset
Sun -- 06:25 AM CDT     Sunrise
Sun -- 08:45 AM CDT     0.59 feet Low Tide
Sun -- 02:00 PM CDT     0.74 feet High Tide
Sun -- 05:41 PM CDT     Moonrise
Sun -- 07:29 PM CDT     Sunset
Sun -- 11:09 PM CDT     0.30 feet Low Tide
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
0.5
1
am
0.6
2
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0.6
3
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0.6
4
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0.6
5
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0.6
6
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0.6
7
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0.6
8
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0.6
9
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0.6
10
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0.6
11
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0.6
12
pm
0.7
1
pm
0.7
2
pm
0.7
3
pm
0.7
4
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0.7
5
pm
0.6
6
pm
0.6
7
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0.5
8
pm
0.4
9
pm
0.4
10
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0.3
11
pm
0.3




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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