FXUS64 KLIX 152327 AFDLIX Area Forecast Discussion National Weather Service New Orleans LA 627 PM CDT Wed Apr 15 2026 ...New AVIATION... .KEY MESSAGES... Updated at 623 PM CDT Wed Apr 15 2026 - Sun and temperature related health risks will be the primary concern with sunny skies and warm temperatures on tap through much of the week. Make sure to use sunscreen and drink plenty of water if you intend to be outside enjoying activities like sports and festivals. - Patch dense fog is possible during the early morning hours tomorrow through midmorning. Visibilities should be greater than 1 SM, so a dense fog advisory has not been issued. && .SHORT TERM... (Now through Thursday) Issued at 1126 AM CDT Wed Apr 15 2026 High pressure continues to build over the region for the next few days through Saturday. Little rain is expected with this pattern, looking at the models. A stray shower or two is possible in afternoons, but won't likely have any appreciable rainfall. Onshore southerly flow will help to advect warmer and more humid air into the region as well during this time. As a result, temperatures will be quite warm with highs in the mid 80s for the end of the workweek with some locations approaching 90 degrees. Since this is the first big warm spell we have had, make sure to stay hydrated if you will be spending time outdoors in the next few days. MSW && .LONG TERM... (Thursday night through Tuesday) Issued at 1126 AM CDT Wed Apr 15 2026 Saturday night into Sunday morning, a frontal system will progress through the area, enhancing rain chances. Looking at the latest model trends, this system is expected to be weakening as it approaches and pushes through the area. Depending on how this trend changes or continues, rainfall could be a little less than we are expecting at the current time. Regardless, scattered showers and storms will be expected as the front moves through the area. Currently, given high PWs (1.4-1.6 inches) with limited lifting, strong storms will be possible with gusty winds (40-60mph), but severe weather is not expected. This could change as we get closer to the weekend, and we will continue to monitor this system. Temperatures will be quite a bit cooler and drier on the backside of the system Sunday through the beginning of the workweek. No rainfall is expected Sunday after the front through at least Tuesday. High temperatures will be in the low 70s for the beginning of next week. One potential concern especially Monday will be the chance for elevated fire weather concerns. Relative humidities will be in the low to upper 20s, so depending on the winds, we will need to be on the lookout for critical fire conditions as we get closer to the end of the weekend. MSW && .AVIATION... (00Z TAFS) Issued at 623 PM CDT Wed Apr 15 2026 Boundary layer decoupling will occur tonight as winds decrease and a surface based temperature inversion forms. As the inversion deepens, low stratus will initially develop at 300 to 500 feet above ground level between 09z and 10z at MCB, BTR, and HDC. Further strengthening of the inversion will result in the low stratus spreading further to the east and south and impacting MSY, HUM, and ASD intermittently between 12z and 14z. At MCB, BTR, and HDC, the stronger inversion will allow for some fog development to occur with visibilties generally between 1 and 3 miles. However, HDC and MCB could see periods where visibilities fall below 1 mile right around sunrise at 12z. Overall, a period of IFR restrictions will be in place at most of the terminals in the 12z to 14z period. Only NEW and GPT should remain in MVFR or better status. After 14z, strong daytime heating and increased boundary layer mixing will allow any fog and stratus to quickly clear and prevailing VFR conditions will return to all of the terminals. && .MARINE... Issued at 1126 AM CDT Wed Apr 15 2026 Strong surface high pressure from the northeast gulf into the Atlantic continues to produce a light to moderate easterly to southeasterly fetch at 10 to 15 kt over the northern Gulf. Onshore flow will continue through at least Saturday with the potential for offshore flow from a cold front coming on Sunday into early next week where more hazardous marine conditions may develop leading to cautionary headlines or even Small Craft Advisories. && .LIX WATCHES/WARNINGS/ADVISORIES... LA...None. GM...None. MS...None. GM...None. && $$ SHORT TERM...MSW LONG TERM....MSW AVIATION...PG MARINE...MSW