Thursday, October21, 2021
Privacy Policy
L-36.com

Marine Weather and Tides
Morgan City, LA

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 7:07AMSunset 6:27PM Thursday October 21, 2021 4:22 PM CDT (21:22 UTC) Moonrise 6:18PMMoonset 7:00AM Illumination 99% Phase: Waning Gibbous; Moon at 16 days in cycle
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
    EDIT      (on/off)   Help
GMZ455 Coastal Waters From Lower Atchafalaya River To Intracoastal City La Out 20 Nm- 345 Pm Cdt Thu Oct 21 2021
Tonight..South winds up to 5 knots becoming west after midnight. Seas 1 foot or less.
Friday..Northeast winds 5 to 10 knots becoming east in the afternoon. Seas 1 foot or less.
Friday night..Southeast winds 5 to 10 knots. Seas 1 foot or less.
Saturday..East winds 10 to 15 knots. Seas 1 foot or less.
Saturday night..Southeast winds 10 to 15 knots. Seas 1 to 2 feet.
Sunday..Southeast winds 10 to 15 knots. Seas 1 to 3 feet. Slight chance of showers and Thunderstorms in the morning, then chance of showers and Thunderstorms in the afternoon.
Sunday night..Southeast winds 10 to 15 knots. Seas 1 to 2 feet. Slight chance of showers and Thunderstorms through the night.
Monday..South winds 5 to 10 knots. Seas 1 to 2 feet. Chance of showers and Thunderstorms.
Monday night..Southwest winds 5 to 10 knots. Seas 1 foot or less.
Tuesday..South winds 5 to 10 knots. Seas 1 foot or less. Slight chance of showers and Thunderstorms in the afternoon.
Tuesday night..South winds 10 to 15 knots. Seas 1 foot or less. Slight chance of showers and Thunderstorms.
GMZ400 Synopsis For Lower Atchafalaya River La To High Island Tx Out 60 Nm Including Sabine And Calcasieu Lakes And Vermilion Bay 345 Pm Cdt Thu Oct 21 2021
Synopsis.. Southerly winds will linger through this afternoon as high pressure lingers to our east. A very weak cool front will move into the coastal waters tonight, with winds briefly turning northeasterly behind it. However winds will quickly shift back to an onshore direction by Friday night as the front washes out and high pressure moves back to our east.


7 Day Forecast for Marine Location Near Morgan City, LA
   Hourly   EDIT   Help
location: 29.67, -91.2     debug


Area Discussion for - Lake Charles, LA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS64 KLCH 212035 AFDLCH

Area Forecast Discussion National Weather Service Lake Charles LA 335 PM CDT Thu Oct 21 2021

SHORT TERM [Tonight through Saturday night]. Mid-afternoon sfc analysis shows our weak frontal boundary slipping sewd through the ArkLaMiss/ern TX at this time, while water vapor imagery shows its attendant shortwave pushing ewd and out of the Mississippi Delta region. Regional 88Ds have been fairly quiet so far today with just a slight coverage of activity primarily over lower Acadiana. Otherwise another partly cloudy/warm/muggy day ongoing across the forecast area.

In the short-term, the convection over our far sern zones should continue to dissipate/move off to the coastal waters as the boundary continues slipping sewd. Not sure how much farther the front will get with the disturbance aloft beginning to push farther ewd and away from the region . regardless with the activity still being primarily diurnal in nature, if anything does maintain over land areas, it'll come to an end towards sunset.

The big problem for tonight again is fog potential. Given the lack of good dry air behind the boundary (or if it even makes it so far south), all the ingredients are in place for further fog formation late tonight. Some fog guidance is also pinging on dense fog potential, especially along/south of I-10. Have added extra fog emphasis in the grids/zones for tonight, but will hold off an any advisory issuance for later shifts to re-evaluate.

With a nwrly/wnwrly flow briefly taking hold aloft and sfc high pressure swinging quickly ewd, rain chances look very slim at best for Friday. Despite the possible fropa, not much drop in temperatures is expected even if it does cross the area.

By Saturday, the next disturbance aloft begins to move into the region, lowering heights aloft. Still some question about how much mid/upper-level moisture we'll see by that point in time, but blended guidance has begun picking up rain chances, specifically for the far wrn zones, in response.

25

LONG TERM [Sunday through Thursday]. Unfortunately, the long term forecast still looks to be characterized by a pretty good bit of uncertainty, so swings in the forecast one way or another will be possible in upcoming packages. At this time, it looks like the forecast period starts with a shortwave trough and associated surface low sliding east in the Central Plains, while locally fast flow with the STJ will sit overhead. With modest low level southerly flow, PWATS are progged to be in the upper half of the IQR, if not a bit above that (~1.40 to 1.80 inches). Though no forcing mechanism looks to be overly strong, the combination of the aforementioned forecast elements should result in some diurnally enhanced thunderstorms on Sunday.

Surface low continues to slide into the Midwest on Monday with it's trailing cold front sagging southward. CMC/ECM are more aggressive than the GFS in the southward extent before stalling, but general indication is at most more of a surface trough/wind shift with maybe some marginally drier air trying to mix in. That said, with some mid- level height rises, looking at more isolated PoPs Monday and once again into Tuesday.

By late Tuesday, uncertainty further increases due to an area of disturbed weather currently off of the western Mexican coast which has favorable odds of tropical development. All major global models continue develop the system to some extent. GFS remains the quickest and furthest south with landfall, with energy/moisture in turn lifting into the local forecast region by late Tuesday. The ECMWF is a bit slower and further north with a landfall point, resulting in the moisture/energy being lifted northward across Texas and into an approaching shortwave in the Plains. The CMC still stalls the system near the Baja Peninsula with no landfall. Opted to stick pretty close to NBM guidance which results in only isolated PoPs, but the evolution of the potential tropical system will likely yield noticeable downstream impacts on the run-to-run variation in guidance.

While uncertainty in the exact strength and timing remain, at least moderate confidence is maintained in a robust shortwave trough and associated cold frontal boundary sweeping through the region Wednesday into Thursday. PWATS increase further as the shortwave/front approach, and in turn PoPs are also accordingly higher during this time given stronger forcing mechanisms. Temperatures look to remain well above average prior to FROPA, with markedly drier and cooler air returning thereafter.

50

MARINE. No headlines look to be in effect on the CWF through the period at this time with mainly a light to slightly elevated srly flow for the bulk of the forecast period.

25

PRELIMINARY POINT TEMPS/POPS. AEX 61 85 62 86 / 10 10 0 10 LCH 68 85 68 84 / 10 10 0 30 LFT 68 86 68 85 / 10 10 0 10 BPT 66 85 67 83 / 10 20 10 40

LCH WATCHES/WARNINGS/ADVISORIES. LA . None. TX . None. GM . None.


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TESL1 - Tesoro Marine Terminal - 8764044 - Berwick, LA 2 mi52 min SSW 4.1G7 83°F 76°F1018.2 hPa
AMRL1 - 8764227 - Amerada Pass, LA 17 mi52 min S 1G6 89°F 78°F1018.1 hPa
EINL1 23 mi52 min SW 6G6 79°F 75°F1018 hPa79°F
BYGL1 - 8762482 - Bayou Gauche, LA 42 mi52 min 85°F 76°F1017.6 hPa

Wind History for Tesoro Marine Terminal, LA
(wind in knots)    EDIT      (on/off)   Help
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
Last
24hr
SE4
G7
SE4
SE3
SE3
SE3
SE1
E2
E2
E3
E2
E3
NE3
NE2
E2
E1
NE4
NE3
NE3
NE2
NE5
NE3
SE4
S7
S6
1 day
ago
E4
G8
NE8
G11
E4
G7
NE6
E5
E5
NE5
NE7
NE8
NE5
G8
NE6
G9
NE5
NE4
NE5
NE3
NE3
NE3
E4
E6
E5
G8
E7
G11
E7
SE6
G11
SE3
G7
2 days
ago
E2
NE2
NE1
NE2
E1
NE1
E4
NE4
NE4
E4
E5
E6
NE5
NE2
NE8
N4
G8
NE7
G12
NE9
G14
NE11
G14
NE8
G12
NE6
G11
NE7
G10
E6
E7
G10

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Patterson Memorial, LA8 mi4.4 hrsno data10.00 mi83°F78°F85%0 hPa
Salt Point, LA19 mi83 minSW 4 mi82°F76°F82%1017.7 hPa

Link to 5 minute data for KPTN

Wind History from PTN (wind in knots)
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
Last 24hrSE10S6----------SE4----------E4000--------------
1 day ago--NE10--------E6----------NE5--------NE5NE3E3E4------
2 days ago--------NE5--0------------0E3NE3NE4------------E6

Tide / Current Tables for Shell Island, Louisiana
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Shell Island
Click for Map
Thu -- 05:09 AM CDT     1.60 feet High Tide
Thu -- 07:10 AM CDT     Sunrise
Thu -- 08:00 AM CDT     Moonset
Thu -- 10:24 AM CDT     0.45 feet Low Tide
Thu -- 06:28 PM CDT     Sunset
Thu -- 07:18 PM CDT     Moonrise
Thu -- 07:32 PM CDT     1.84 feet High Tide
Thu -- 11:13 PM CDT     1.44 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1.3
1
am
1.4
2
am
1.4
3
am
1.5
4
am
1.6
5
am
1.6
6
am
1.5
7
am
1.3
8
am
1
9
am
0.6
10
am
0.5
11
am
0.5
12
pm
0.6
1
pm
0.7
2
pm
0.9
3
pm
1.1
4
pm
1.4
5
pm
1.6
6
pm
1.7
7
pm
1.8
8
pm
1.8
9
pm
1.7
10
pm
1.5
11
pm
1.4


Tide / Current Tables for Point Chevreuil, Louisiana
   EDIT      (on/off)   Help   One Week of Data
Point Chevreuil
Click for Map
Thu -- 05:17 AM CDT     1.60 feet High Tide
Thu -- 07:11 AM CDT     Sunrise
Thu -- 08:01 AM CDT     Moonset
Thu -- 10:09 AM CDT     0.45 feet Low Tide
Thu -- 06:29 PM CDT     Sunset
Thu -- 07:19 PM CDT     Moonrise
Thu -- 07:40 PM CDT     1.84 feet High Tide
Thu -- 10:58 PM CDT     1.44 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1.3
1
am
1.4
2
am
1.4
3
am
1.5
4
am
1.6
5
am
1.6
6
am
1.5
7
am
1.3
8
am
0.9
9
am
0.6
10
am
0.5
11
am
0.5
12
pm
0.6
1
pm
0.7
2
pm
0.9
3
pm
1.2
4
pm
1.4
5
pm
1.6
6
pm
1.7
7
pm
1.8
8
pm
1.8
9
pm
1.7
10
pm
1.5
11
pm
1.4


Weather Map
       (on/off)   Help Weather Map
wmap_A
GEOS Local Image of    EDIT
NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
Link to Loop

Other links: GEOS-West     Contential US     Full GOES-East
Ground Weather Radar Station



Gulf Stream Current



Please read website Cookie, Privacy, and Disclamers by clicking HERE.