Marine Weather and Tide Forecast for Gretna, LA

LONG TERM
(Wednesday through Sunday night)
Issued at 255 PM CDT Mon May 12 2025

As high pressure continues to build over the area and southerly flow dominates, humidities and temperatures will be on a warming trend through the week. The high temperatures Wednesday and Thursday will be in the upper 80s while Friday through the weekend, temperatures will be approaching the low 90s. Heat index values will be approaching 100 degrees as we head into the weekend as well. Looking at the models, little to no accumulated precipitation is expected in the long term forecast. The Euro in particular emphasizes more zonal flow aloft for the weekend pattern, so we can't rule out the chance just yet of an isolated shower or two over the weekend. But if that occurs, it would be quite brief and localized in scale (PoPs around 10-20%). The more likely consensus at this point is that the ridge continues to dominate and we continue these warm and drier conditions.
Consequently, be careful of the heat because this time of year it can sneak up on folks. We are at the beginning of summer, and people are not yet fully adjusted to the warmer temperatures, especially after the cool snap we just have been experiencing. The key is to stay hydrated, wear loose fitting clothing, and take breaks if needed. MSW

AVIATION
(00Z TAFS)
Issued at 618 PM CDT Mon May 12 2025

VFR conditions through the cycle for all terminals, except MCB where some VIS reductions will be possible around sunrise on Tuesday. This should easily mix out after sunrise with VFR continuing through the cycle. Winds will be light and variable mostly at least until Tuesday afternoon where southerly winds will likely develop...mostly less than 10kt. (Frye)

MARINE
Issued at 255 PM CDT Mon May 12 2025

Tonight through Tuesday night, westerly and moderate (10-15kts)
winds are expected. Tuesday night through Thursday afternoon, winds will be strong (15-20kts) and southerly, especially for our western waters. Thursday night through the weekend, wind will be southerly and moderate (10-15kts). MSW

PRELIMINARY POINT TEMPS/POPS
MCB 59 85 66 88 / 0 0 0 0 BTR 62 87 70 88 / 0 0 0 0 ASD 62 85 68 88 / 0 0 0 0 MSY 64 86 71 88 / 0 0 0 0 GPT 63 83 70 84 / 10 10 0 0 PQL 60 83 67 84 / 10 10 0 0

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