Marine Weather Net

Vermilion Bay Marine Forecast


TODAY

W
WINDS
5 - 10
KNOTS

TONIGHT

W
WINDS
5 - 10
KNOTS

SATURDAY

W
WINDS
5 - 10
KNOTS

SATURDAY NIGHT

W
WINDS
5 - 10
KNOTS

The Marine Weather Forecast In Detail:
GMZ435 Forecast Issued: 313 AM CDT Fri Jul 03 2020

Today...West Winds 5 To 10 Knots. Bay Waters A Light Chop. Chance Of Showers And Thunderstorms In The Afternoon.
Tonight...West Winds 5 To 10 Knots. Bay Waters A Light Chop. Chance Of Showers And Thunderstorms.
Saturday...West Winds 5 To 10 Knots. Bay Waters A Light Chop. Chance Of Showers And Thunderstorms In The Morning, Then Showers And Thunderstorms Likely In The Afternoon.
Saturday Night...West Winds 5 To 10 Knots. Bay Waters A Light Chop. Chance Of Showers And Thunderstorms.
Sunday...West Winds 5 To 10 Knots. Bay Waters A Light Chop. Showers And Thunderstorms Likely.
Sunday Night...Southwest Winds 5 To 10 Knots. Bay Waters A Light Chop. Chance Of Showers And Thunderstorms.
Monday...Southwest Winds 5 To 10 Knots. Bay Waters A Light Chop. Showers And Thunderstorms Likely.
Monday Night...Southwest Winds 5 To 10 Knots. Bay Waters A Light Chop. Slight Chance Of Showers And Thunderstorms.
Tuesday...Southwest Winds 5 To 10 Knots. Bay Waters A Light Chop. Showers And Thunderstorms Likely.
Tuesday Night...Southwest Winds 5 To 10 Knots. Bay Waters A Light Chop.
SHARE THIS PAGE:           
Synopsis for Lower Atchafalaya River LA to High Island TX out 60 NM including Sabine and Calcasieu Lakes and Vermilion Bay: GMZ400
313 AM CDT Fri Jul 3 2020

A surface trough will approach the coastal waters today and Saturday. This will briefly turn the light winds to a more westerly direction over the coastal waters. Later in the weekend into early next week, weak surface high will ridge across the northern Gulf. This will allow a mainly light south to southwest flow to redevelop and persist. An upper trough of low pressure is expected to dig into the Gulf Coast over the weekend into early next week, bringing an increase in showers and thunderstorms for the holiday weekend.
Area Forecast Discussion
National Weather Service Lake Charles LA
313am CDT Fri July 3 2020

Warm and humid conditions continue this morning across the region with temperatures and dewpoints in the upper 70s to low 80s. The ridge aloft which is centered over northern Mexico and is responsible for the dry weather over the past few days is shifting west as a trough moves into the southeastern states. At the surface a ridge is centered in the north central gulf. A weak trough has drifted into the southeast states as well.

Today the upper ridge will continue to shift west as the upper trough moves closer. The weakness aloft combined with the weak surface trough in the region will result in scattered to numerous showers and storms developing in central LA and drifting south and west. Ample moisture will also be ahead of the weak surface trough with PWATs (Precipitable Waters) to around 2" or more across Louisiana. Slow motion and high moisture will keep heavy rainfall possible. Farther west into SE TX moisture will return a little slower which will keep chances of rain suppressed until later in the day, although most locations away from the Sabine River won't see higher rain chances until Saturday. Where storms and clouds are slow to develop the heat indices will climb close to heat adv criteria this afternoon.

The stormy pattern continues through the weekend and into early next week.

A ridge will build back over the region during the middle of the coming week reducing rain chances once again.

Marine
Weak high pressure will remain over the gulf through the weekend. This will keep a light to moderate south to southwest to west flow in place. Thunderstorm coverage will increase with a trough aloft producing localized higher winds and waves.

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