Marine Weather and Tide Forecast for Triumph, LA

LONG TERM
(Saturday through Wednesday night)
Issued at 125 PM CDT Thu Jul 17 2025

As circulation moves further away from the area, moisture content begins to diminish on Saturday to 1.9 to 2.1 inches, and to around 1.8 inches on Sunday. The Sunday moisture levels are expected to hang around through at least Tuesday before increasing again. The airmass won't be dry enough to preclude convective development entirely during max heating, and will be carrying thunderstorm mentions each afternoon. Lower rain chances also signals warmer high temperatures beginning Sunday. High temperatures will return to the mid 90s as early as Sunday, and heat index values are expected to be sufficient to justify Heat Advisories across some or most of the area for several days, through at least Tuesday.
Extreme Heat Warnings could be necessary in a few locations, but way too soon to make that distinction. Some indications that there may be another easterly wave moving across the northern Gulf at midweek next week (Wednesday), but whether the precipitation shield remains offshore or spreads inland is still in question. If rain moves inland, that would mean somewhat lower high temperatures.

AVIATION
(18Z TAFS)
Issued at 125 PM CDT Thu Jul 17 2025

A mix of VFR and MVFR conditions this afternoon, with radar indicating scattered SHRA/TSRA rotating cyclonically around the surface low south of New Orleans. Direct impacts could produce brief IFR visibilities. Most should dissipate by 02z this evening.
Likely to start seeing SHRA/TSRA moving onshore again around sunrise Friday, and areal coverage increase around 15z.

MARINE
Issued at 125 PM CDT Thu Jul 17 2025

Trimmed a bit of the Small Craft Exercise Caution, taking out the tidal lakes and far western waters. Main concern will be potential for thunderstorms, especially during the late night and morning hours. Storms would produce locally higher winds and seas. Areal coverage should diminish starting Saturday with only scattered storms Sunday through Tuesday.

PRELIMINARY POINT TEMPS/POPS
MCB 73 87 73 90 / 30 90 20 70 BTR 76 86 75 91 / 50 90 20 70 ASD 75 88 74 91 / 50 80 20 70 MSY 78 89 78 92 / 50 90 20 80 GPT 78 88 78 91 / 60 80 30 70 PQL 76 88 75 92 / 60 80 30 70

LIX WATCHES/WARNINGS/ADVISORIES
LA...Flood Watch through late Friday night for LAZ034>037-039-046>048- 056>060-064>071-076>090.

GM...None.
MS...Flood Watch through late Friday night for MSZ077-083>088.

GM...None.