Marine Weather Net

Calcasieu Lake Marine Forecast


REST OF TODAY

NE
WINDS
5 - 10
KNOTS

TONIGHT

SE
WINDS
5 KNOTS

MONDAY

SE
WINDS
5 - 10
KNOTS

MONDAY NIGHT

SE
WINDS
5 - 10
KNOTS

The Marine Weather Forecast In Detail:
GMZ432 Forecast Issued: 1019 AM CDT Sun Apr 11 2021

Rest Of Today...Northeast Winds 5 To 10 Knots. Lake Waters A Light Chop.
Tonight...Southeast Winds Around 5 Knots. Lake Waters Smooth.
Monday...Southeast Winds 5 To 10 Knots. Lake Waters A Light Chop.
Monday Night...Southeast Winds 5 To 10 Knots. Lake Waters A Light Chop. Slight Chance Of Showers And Thunderstorms After Midnight.
Tuesday...East Winds 5 To 10 Knots. Lake Waters A Light Chop. Chance Of Showers And Thunderstorms In The Morning, Then Slight Chance Of Showers And Thunderstorms In The Afternoon.
Tuesday Night...East Winds Around 10 Knots. Lake Waters A Light Chop. Slight Chance Of Showers And Thunderstorms In The Evening, Then Chance Of Showers And Thunderstorms After Midnight.
Wednesday...Northeast Winds 10 To 15 Knots. Lake Waters Choppy. Chance Of Showers And Thunderstorms In The Morning, Then Slight Chance Of Showers And Thunderstorms In The Afternoon.
Wednesday Night...Northeast Winds 10 To 15 Knots. Lake Waters Choppy.
Thursday...Northeast Winds 10 To 15 Knots. Lake Waters Choppy. Slight Chance Of Showers.
Thursday Night...East Winds 5 To 10 Knots. Lake Waters A Light Chop. Slight Chance Of Showers After Midnight.
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Synopsis for Lower Atchafalaya River LA to High Island TX out 60 NM including Sabine and Calcasieu Lakes and Vermilion Bay: GMZ400
1019 AM CDT Sun Apr 11 2021

An offshore flow in wake of a departing cold front will linger into this afternoon before high pressure building past the region allows winds to shift to an easterly, then southerly direction, for the early part of the new week. Another cold front is forecast to move into the northwest Gulf of Mexico on Wednesday, then stall, allowing for a more easterly flow to develop for the remainder of the forecast period.
Area Forecast Discussion
National Weather Service Lake Charles LA
119pm CDT Sunday April 11 2021

For the 04/11/21 1800 UTC TAF package.

AVIATION... VFR/SKC to prevail through the period. Surface high pressure will transition eastward across the area today, with winds initially out of the northeast 5-8 KT today becoming VRB this afternoon into tonight.

24

What a difference 24 hours makes. Early morning surface analysis shows the cold front about to exit lower Acadiana with high pressure building over the majority of the forecast area at this time. Water vapor imagery shows trough.ing over the eastern CONUS with a nwrly flow now established over the warning Gulf region...meanwhile, a series of disturbances are noted upstream this morning. Satellite imagery/surface obs show just a bit of cloud cover along or lagging shortly behind the boundary over the sern zones. Given the dry airmass left behind, especially noted in upstream soundings from 00z which have overspread the area over the past 10 hours, not surprising that other than a little convection far offshore, local 88Ds are PPINE. Temps are currently close to seasonal values, on their way to slightly below normal values around sunrise.

Not many changes to the inherited grids/zones this morning. The lingering cloud cover over the sern zones should clear out over the next few hours, leaving behind a sunny Sunday across the area. It looks to be another rather warm day across the forecast area as highs are forecast to run in the lower to mid 80s. The first upstream shortwave will cross the region tonight...with limited moisture, expect just a slight increase in high cloudiness. Mins will again be near seasonal with lows generally in the 50s. Weak ridging building in behind the disturbance will allow temps to further warm on Monday with highs into the upper 80s over interior sern TX. With the surface high now east of the area, an onshore low-level flow will return which will drive dewpoints back up to the 50s/lower 60s which will make it feel warmer and muggier. At this time, it doesn't appear that deep layer moisture will sufficient for any convective development.

The next shortwave in the series is forecast to help spin up a sfc low along the TX coast or nwarning Gulf Monday night into Tuesday. Lift ejecting ewd across the area will combine with the increasing moisture to allow for a few showers/storm or two to develop beginning Monday night. POPs increase Tuesday as the low tracks enewd into lower Acadiana/sern LA...at this time, the main concerns with this activity appears to be occasional brief bursts of heavier precipitation at most. After perhaps a brief respite Tuesday night, rain chances again increase for Wednesday as the next ripple in the flow helps drive the main surface boundary through the area.

Rain chances (mainly slim) linger through the remainder of the forecast period as the presence of continued abundant moisture behind the front and still more weak disturbances traversing the wrly flow aloft will lead to the possibility of more showers/few storms into next weekend. On the plus side, temps will remain around or slightly below seasonal norms through Friday.

Marine Discussion
Other than perhaps a quick shot of SCEC conditions (Small Craft Should Exercise Caution) post-midweek frontal passage, not anticipating any flags on the coastal waters through this period.

25.


NOAA Lake Charles LA Office: Watches - Warnings - Advisories
LA...None. TX...None. GM...None.