Marine Weather and Tide Forecast for Bayou L'Ourse, LA

LONG TERM
(Wednesday night through Monday)
Issued at 300 AM CDT Tue May 13 2025

Upper ridging is expected to build over the Gulf for the end of the week and into or through the weekend. If any precipitation at all occurs over the next week, it'd be over southwest Mississippi on Saturday. Troughing to the north of the area could push a frontal boundary close enough to the area to provide a focus for isolated to scattered showers or storms over southwest Mississippi Saturday afternoon, if the ECMWF operational run is correct.

Above normal temperatures are expected through the entire period, with highs in the upper 80s and lower 90s each day. The cooler numbers will be in those areas where an afternoon sea breeze cuts off heating around 1 PM or so. Much of the area will also see overnight lows in the 70s. Heat advisory criteria (108F) do not look like they will be reached across the area, topping out around 100 degrees. That being said, this will be the first extended summer-like weather across the area, and people won't be acclimatized yet, so taking the usual heat related precautions is suggested.

AVIATION
(06Z TAFS)
Issued at 1151 PM CDT Mon May 12 2025

All terminals should remain VFR throughout this forecast cycle as high pressure sits over the area. There are low-end chances of seeing reduced visibility at MCB right around sunrise this morning, but since confidence in that is low, it was left out of the TAF. Still enough to warrant a mention however. Otherwise, there will be no issues this cycle.

MARINE
Issued at 300 AM CDT Tue May 13 2025

With the diminished threat for thunderstorms over the next 5 days, the only real concern will be winds/waves. A persistent southwest flow is expected to strengthen a bit to the 15 to 20 knot range later tonight into Wednesday morning, mainly over the western waters. Will issue a Small Craft Advisory 06z Wednesday through 17z Wednesday for the far western two Marine zones and Small Craft Exercise Caution headlines for the adjoining 2 zones. Could see a repeat the following 2 nights as well, but will take things on a day by day basis as far as any advisory issuances.

PRELIMINARY POINT TEMPS/POPS
MCB 86 66 88 66 / 0 10 0 0 BTR 88 69 89 71 / 0 0 0 0 ASD 87 68 87 70 / 0 0 0 0 MSY 87 71 88 73 / 0 0 0 0 GPT 84 70 84 71 / 0 0 0 0 PQL 84 67 84 69 / 0 0 0 0

LIX WATCHES/WARNINGS/ADVISORIES
LA...None.
GM...Small Craft Advisory from 1 AM to 1 PM CDT Wednesday for GMZ550- 570.

MS...None.
GM...Small Craft Advisory from 1 AM to 1 PM CDT Wednesday for GMZ570.