Marine Weather Net

Vermilion Bay Marine Forecast


REST OF TODAY

NE
WINDS
10 - 15
KNOTS

TONIGHT

E
WINDS
5 KNOTS

TUESDAY

E
WINDS
5 KNOTS

TUESDAY NIGHT

E
WINDS
5 - 10
KNOTS

The Marine Weather Forecast In Detail:
GMZ435 Forecast Issued: 558 AM CST Mon Dec 15 2025

Rest Of Today...Northeast Winds 10 To 15 Knots With Gusts Up To 20 Knots, Diminishing To 5 To 10 Knots This Afternoon. Bay Waters Choppy.
Tonight...East Winds Around 5 Knots. Bay Waters Smooth.
Tuesday...East Winds Around 5 Knots. Bay Waters Smooth.
Tuesday Night...East Winds 5 To 10 Knots. Bay Waters Light Chop. A Chance Of Sprinkles After Midnight.
Wednesday...East Winds 5 To 10 Knots. Bay Waters Light Chop. A Slight Chance Of Showers In The Afternoon.
Wednesday Night...Southeast Winds 5 To 10 Knots. Bay Waters Light Chop. A Slight Chance Of Showers In The Evening, Then A Chance Of Showers After Midnight.
Thursday...South Winds 5 To 10 Knots. Bay Waters Light Chop. A Chance Of Sprinkles In The Morning, Then A Chance Of Showers With A Slight Chance Of Thunderstorms In The Afternoon.
Thursday Night...Northwest Winds 5 To 10 Knots, Becoming North After Midnight. Bay Waters Light Chop. A Slight Chance Of Showers In The Evening, Then A Chance Of Sprinkles After Midnight.
Friday...Northeast Winds 5 To 10 Knots. Bay Waters Light Chop.
Friday Night...Southeast Winds 5 To 10 Knots. Bay Waters Light Chop. Winds And Waves Higher In And Near Thunderstorms.
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Area Forecast Discussion
National Weather Service Lake Charles LA
1216pm CST Monday Dec 15 2025

.SHORT TERM... (Tonight through Wednesday night) Issued at 1201pm CST Monday Dec 15 2025

High pressure stretches from deep south Texas to the central Appalachians this afternoon. Locally, under this dome of high pressure winds are light and VRB and skies are clear. Temperatures around the region were below freezing all the way to the coast with readings in the mid 20s across Cen LA and the East Texas Lakes Region.

This evening and overnight the ridge will shift east with winds becoming east to SE by sunrise Tuesday. Temperature will fall back to or below freezing at most inland locations, however as the ridge shifts away, moderation of the airmass will occur. In other words, it won't be as cold tonight. Dewpoints will be higher, and winds will be lighter, so frost will be much more widespread.

The return flow will be in full force Tuesday through mid week as the ridge departs and another cold front drops into the plains. The south flow will drag in moisture with temps and dewpoint ramping up into the 50s by Wednesday. Dewpts may even reach in the 60s for a period late Wednesday into early Thu. With the WAA (Warm Air Advection - the movement of warm air) ahead of the cold front, showers will be possible Wednesday/Wednesday night. Forcing looks limited, however a thunderstorm or two may be possible. While not mentioned in the forecast, sea fog may become an issue with water temps running in the mid 50s to around 60 at the coast, but the duration may be limited due to the incoming cold front.

Long Term
(Thursday through next Sunday) Issued at 1201pm CST Monday Dec 15 2025

Late Wednesday or Thursday the cold front will push through the area will a very modest cool down for late week.

Temperatures will quickly warm back up during the weekend with highs well above normal. Dewpoints will climb into the mid 60s setting the stage for multiple foggy mornings, especially over the coastal lakes and bays.

Marine
Issued at 1201pm CST Monday Dec 15 2025

High pressure will move east of the region Tuesday and an onshore flow will resume. The next disturbance starts taking shape on Wednesday. Southeast winds will increase Thursday before another cool front with strong offshore flow moves into Gulf waters on Friday.

Higher dewpoints are anticipated this weekend with sea fog becoming possible for multiple days.

Fire Weather
Issued at 1201pm CST Monday Dec 15 2025

High pressure moves east of the region Tuesday allowing moisture to improve on developing southerly flow. Minimum RH values will range from 40 to 55 percent Tuesday and 60 to 70 percent Wednesday.

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