Marine Weather and Tide Forecast for Montegut, LA

LONG TERM
(Friday through Tuesday night)
Issued at 328 PM CDT Wed Apr 23 2025

The longwave pattern gradually amplifies from the more zonal structure currently present across CONUS as a trough digs across the western CONUS and amplifies the ridging over the central CONUS. Rising mid-upper heights and temperatures will taper off rain chances for most of the area with warm, moist conditions settling in for the foreseeable future

Lows will be in the mid 60s to low 70s each night and highs will be gradually trend from the mid 80s to near 90F by Sunday. This is largely a product of warming mid-level temps and decreasing cloud cover. As a result, risk of sun exposure and heat-related illnesses will increase into the weekend especially for those seeking outdoor activities such as festivals.

ACTION: Early season heat is a sneaky hazard for those not acclimated to the heat. It's important to stay hydrated, seek shaded areas whenever possible, and apply sunscreen frequently!

By next week we will have to turn our attention to what comes of the progression of the trough over the western CONUS as pushes east into the central CONUS by midweek. That is likely when our next substantive rain chances will be.

AVIATION
(18Z TAFS)
Issued at 1234 PM CDT Wed Apr 23 2025

Convective activity will be displaced toward BTR and MCB this afternoon as a weak boundary continues to slowly shift further inland. PROB30 wording for the thunderstorm threat is included generally between 18z and 02z at these terminals with prevailing MVFR restrictions. After 02z, the loss of daytime heating should allow the convection to dissipate and a brief period of prevailing VFR conditions will take hold. However, the development of another inversion that will gradually strengthen through the night will allow for another round of low stratus to form between 07z and 12z. This will lead to a mix of IFR and MVFR ceilings ranging from 500 to 1500 feet at all of the terminals. MCB and BTR are expected to see the lowest ceilings and some fog will also form, especially at MCB, between 10z and 14z. After 14z, increased mixing of the boundary layer will allow the inversion to lift and prevailing MVFR and VFR conditions to take hold at all of the terminals by 16z. PG

MARINE
Issued at 328 PM CDT Wed Apr 23 2025

Though a few thunderstorms over the protected waters cannot be ruled out through Thursday, favorable conditions for maritime operations are expected otherwise. Onshore flow is likely to continue through the period with wind speeds for the most part remaining near 10 knots or less.

PRELIMINARY POINT TEMPS/POPS
MCB 65 84 66 85 / 50 40 10 30 BTR 67 86 68 86 / 40 40 0 30 ASD 67 84 67 85 / 10 20 0 10 MSY 70 84 70 85 / 10 20 0 10 GPT 68 81 68 82 / 10 10 0 10 PQL 65 83 65 84 / 10 10 0 10

LIX WATCHES/WARNINGS/ADVISORIES
LA...None.
GM...None.
MS...None.
GM...None.