Marine Weather and Tide Forecast for Arabi, LA

LONG TERM
(Thursday through Monday night)
Issued at 117 PM CDT Tue May 20 2025

Thursday and Friday will be a general repeat of Wednesday but with isolated to scattered showers and storms mainly offshore as the residual boundary sinks into the northern Gulf. Temperatures will rise into the lower 90s but won't be too oppressive as dewpoints remain in the 60s.

By Saturday the old front will surge northward again as a arm front, bringing a gradual increase in low level moisture to the area, with dewpoints rebounding into the 70s most places. This will also mark a transition to a somewhat typical summertime pattern as even in the absence of any large scale forcing, diurnal heating should be enough to fire off isolated to scattered showers and storms by Sunday and Monday. Temperatures will remain warmer than normal, with overnight lows back in the mid 70s across much of the area by Sunday.

AVIATION
(06Z TAFS)
Issued at 1149 PM CDT Tue May 20 2025

Weak front continues to move into the area. While there were a few stronger cells during the late evening hours across the far northwestern parts of the area, those continue to wane and are not currently expected to affect any of the terminals. Ceilings will lower as we go through the morning hours and rain chances will increase slightly again by the late morning hours and into the early afternoon. That said, some short term models are not showing as much in the way of shower and thunderstorm activity.
Due to this, opted to only go PROB30 at the southern terminals and left it out for now of the more northern terminals. This may need to be adjusted depending on the progress of the front.

MARINE
Issued at 117 PM CDT Tue May 20 2025

Exercise caution headlines remain in effect across most of the coastal through at least this afternoon, and into the first part of tonight for some of the eastern waters. Winds will ease late tonight and Wednesday morning as a weak frontal boundary stalls near the coast. This will result in generally light and variable winds Thursday and Friday. The front will move back to the north by Saturday causing winds to once again become southeasterly, strengthening to 10-15 kts. The front could also result in isolated to widely scattered showers and thunderstorms Wednesday and Thursday. Should any storms develop over the waters, winds and waves could build quickly in response.

PRELIMINARY POINT TEMPS/POPS
MCB 68 89 64 91 / 30 0 0 0 BTR 73 90 69 92 / 20 10 0 10 ASD 73 89 68 90 / 20 30 0 0 MSY 77 88 74 90 / 10 40 0 10 GPT 75 88 69 88 / 20 30 0 0 PQL 73 89 65 89 / 20 30 0 0

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