FNUS74 KLIX 190834 FWSLIX Spot Forecast for Grand Isle Block 59 Release INLAND...NOAA National Weather Service New Orleans LA 334 AM CDT Tue May 19 2026 If conditions become unrepresentative, contact the National Weather Service. We can be reached at (985) 649-0357 if you have questions or concerns with this forecast. .DISCUSSION... A large area of high pressure will remain situated over the western Atlantic through the week and into the weekend. This will maintain light to moderate onshore flow through the time. Winds will bounce around headline criteria over the next 24 to 36 hours with sustained winds right around 15 kts, especially closer to the coast. Exercise Caution headlines will be in effect again for the remainder of the night for the waters west of the mouth of the river along with Breton and Chandeluer Sound. As for showers and thunderstorms daily isolated to scattered showers will be possible each day however the bulk of the coverage will remain inland. With any thunderstorms locally hazardous winds and waves can be expected. .REST OF TONIGHT... Sky/weather.........Partly cloudy (40-50 percent). Chance of pcpn......0 percent. Min temperature.....Around 81. Max humidity........88 percent. Max apparent temp...91. Surface winds (kts).Southeast winds around 15 knots. Transport winds.....Southeast around 20 mph. Transport winds m/s.Southeast around 9 meters/second. Wave height.........1 foot. Wave period.........2 SECONDS. CEILING (KFT).......1.7. Wind (20 ft)........Southeast winds around 16 mph. TIME (CDT) 5AM Sky (%).........44 Weather cov..... Weather type.... Tstm cov........ Chc of pcpn (%).0 Temp............82 RH..............88 Aparnt tmp (F)..91 20 FT wind dir..SE 20 FT wind spd..17 20 FT wind gust.20 SFC wnd dir.....SE SFC wnd spd kts.15 SFC wnd gst.....20 Transp wind dir.SE Transp wind spd.20 Trans wind dir..SE Trans spd (m/s).9 Wave period (s).2 Wave height (ft)1 Ceiling (kft)...1.7 .TODAY... Sky/weather.........Mostly sunny (40-50 percent). Chance of pcpn......10 percent. Max temperature.....Around 84. Min humidity........85 percent. Max apparent temp...90. Surface winds (kts).Southeast winds 14 to 15 knots. Transport winds.....Southeast 17 to 21 mph. Transport winds m/s.Southeast 8 to 9 meters/second. Wave height.........1 foot. Wave period.........2 SECONDS. CEILING (KFT).......2.2 increasing to 5.0 late in the morning, then decreasing to 3.1 early in the afternoon increasing to 6.5 early in the afternoon decreasing to 4.4 increasing to 7.5 late in the afternoon increasing to 10. Wind (20 ft)........Southeast winds 15 to 16 mph. TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........57 57 28 43 43 50 48 54 40 32 45 33 Weather cov..... Weather type.... Tstm cov........ Chc of pcpn (%).0 0 0 0 0 0 0 0 0 0 0 10 Temp............81 82 82 81 82 81 81 81 81 81 81 81 RH..............91 85 85 88 85 88 88 88 91 91 88 88 Aparnt tmp (F)..89 90 90 88 90 88 88 88 89 89 88 88 20 FT wind dir..SE SE SE SE SE SE SE ESE ESE SE ESE SE 20 FT wind spd..17 17 17 17 16 16 16 16 16 16 16 17 20 FT wind gust.21 21 21 21 20 20 20 20 20 20 20 21 SFC wnd dir.....SE SE SE SE SE SE SE ESE ESE SE ESE SE SFC wnd spd kts.15 15 15 15 14 14 14 14 14 14 14 15 SFC wnd gst.....21 21 21 21 20 20 20 20 20 20 20 21 Transp wind dir.SE SE SE SE SE SE SE SE SE ESE SE SE Transp wind spd.20 20 21 20 20 18 18 17 18 18 18 18 Trans wind dir..SE SE SE SE SE SE SE SE SE ESE SE SE Trans spd (m/s).9 9 9 9 9 8 8 8 8 8 8 8 Wave period (s).2 2 2 2 2 2 2 2 2 2 2 2 Wave height (ft)1 1 1 1 1 1 1 1 1 1 1 1 Ceiling (kft)...2.2 2.5 2.6 5.0 5.3 5.3 3.1 3.8 6.5 4.4 7.5 10 .TONIGHT... Sky/weather.........Partly cloudy (40-50 percent) then becoming mostly cloudy (55-65 percent) then becoming partly cloudy (45-55 percent) then becoming mostly cloudy (65-75 percent). Slight chance of showers and thunderstorms early in the morning. Chance of pcpn......20 percent. Min temperature.....Around 80. Max humidity........88 percent. Max apparent temp...88. Surface winds (kts).Southeast winds 10 to 15 knots. Transport winds.....Southeast 12 to 18 mph. Transport winds m/s.Southeast 5 to 8 meters/second. Wave height.........1 foot. Wave period.........2 SECONDS. CEILING (KFT).......17 decreasing to 12 early in the evening, then decreasing to 7.5 late in the evening increasing to 8.6 late in the evening decreasing to 5.8 decreasing to 4.6 after 3 am decreasing to 3.9. Wind (20 ft)........Southeast winds 10 to 16 mph. Gusty and erratic winds expected near thunderstorms early in the morning. TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........46 43 62 48 52 56 66 68 55 85 58 54 Weather cov..... SCH Weather type.... RW Tstm cov........ SCH Chc of pcpn (%).0 10 10 10 10 10 10 10 10 10 10 20 Temp............81 81 81 81 81 81 81 81 81 81 81 81 RH..............88 88 88 88 88 88 88 88 88 85 85 85 Aparnt tmp (F)..88 88 88 88 88 88 88 88 88 87 87 87 20 FT wind dir..SE SE SE SE SE SE SE SE SE SE SE SE 20 FT wind spd..17 17 17 16 15 14 14 13 12 12 12 12 20 FT wind gust.21 20 20 20 18 17 16 15 15 14 14 14 SFC wnd dir.....SE SE SE SE SE SE SE SE SE SE SE SE SFC wnd spd kts.15 15 15 14 13 12 12 11 10 10 10 10 SFC wnd gst.....21 20 20 20 18 17 16 15 15 14 14 14 Transp wind dir.SE SE SE SE SE SE ESE SE SE SE SE ESE Transp wind spd.18 18 18 18 17 16 15 14 14 13 13 12 Trans wind dir..SE SE SE SE SE SE ESE SE SE SE SE ESE Trans spd (m/s).8 8 8 8 8 7 7 6 6 6 6 5 Wave period (s).2 2 2 2 2 2 2 2 2 2 2 2 Wave height (ft)1 1 1 1 1 1 1 1 1 1 1 1 Ceiling (kft)...17 12 13 13 7.5 9.3 8.6 6.7 5.8 5.1 4.6 3.9 .WEDNESDAY... Sky/weather.........Mostly sunny (40-50 percent). Chance of pcpn......10 percent. Max temperature.....Around 81. Min humidity........85 percent. Max apparent temp...87. Surface winds (kts).Southeast winds 9 to 12 knots. Transport winds.....Southeast 12 to 14 mph. Transport winds m/s.Southeast 5 to 6 meters/second. Wave height.........1 foot. Wave period.........2 SECONDS. CEILING (KFT).......2.8 increasing to 17. Wind (20 ft)........Southeast winds 9 to 13 mph. TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........47 63 65 52 66 44 52 46 34 26 42 25 Weather cov..... Weather type.... Tstm cov........ Chc of pcpn (%).10 10 10 10 10 10 10 10 10 10 10 10 Temp............81 81 81 80 80 80 80 80 80 80 80 80 RH..............85 85 85 88 85 88 85 85 88 88 85 85 Aparnt tmp (F)..87 87 87 86 85 86 85 85 86 86 85 85 20 FT wind dir..SE SE SE ESE ESE ESE ESE ESE ESE ESE SE SE 20 FT wind spd..10 10 12 12 13 13 13 14 13 13 13 12 20 FT wind gust.13 13 14 14 15 15 16 16 15 15 15 14 SFC wnd dir.....SE SE SE ESE ESE ESE ESE ESE ESE ESE SE SE SFC wnd spd kts.9 9 10 10 11 11 11 12 11 11 11 10 SFC wnd gst.....13 13 14 14 15 15 16 16 15 15 15 14 Transp wind dir.SE ESE ESE SE SE SE SE SE SSE SSE SSE SE Transp wind spd.12 12 13 13 13 13 13 14 14 14 13 13 Trans wind dir..SE ESE ESE SE SE SE SE SE SSE SSE SSE SE Trans spd (m/s).5 5 6 6 6 6 6 6 6 6 6 6 Wave period (s).2 2 2 2 2 2 2 2 2 2 2 2 Wave height (ft)1 1 1 1 1 1 1 1 1 1 1 1 Ceiling (kft)...3.4 3.1 2.8 3.1 4.2 6.9 10 13 15 17 18 .FORECAST DAYS 3 THROUGH 7... .THURSDAY... Partly cloudy. Chance of showers and slight chance of thunderstorms. Lows around 80. Highs in the lower 80s. Southeast winds around 10 mph. .FRIDAY... Mostly cloudy. Chance of showers and thunderstorms. Lows around 80. Highs in the lower 80s. Southeast winds around 12 mph. .SATURDAY... Mostly cloudy. Chance of showers and thunderstorms. Lows around 80. Highs in the lower 80s. South winds around 13 mph. .SUNDAY... Mostly cloudy. Chance of showers and thunderstorms. Lows in the lower 80s. Highs in the lower 80s. .MEMORIAL DAY... Mostly cloudy. Chance of showers and thunderstorms. Lows in the lower 80s. Highs in the lower 80s. .OUTLOOK FOR TUESDAY MAY 26 THROUGH MONDAY JUNE 01... Next week continues to indicate a very summertime-like weather pattern persisting with mainly afternoon/evening scattered showers. Can't rule out brief early morning showers at times, but widespread heavy or impactful weather next week is looking low, with near-normal temperatures persisting. $$ Forecaster...GILMORE Requested by...Brandi Todd Type of request...HAZMAT .TAG 2613995.0/LIX .DELDT 05/19/26 .FormatterVersion 2.0.0 .EMAIL demaskey@cleangulfassoc.com,rlozada@responsegroup.com,elyons@ampol.net,Brandi.Todd@noaa.gov,peter.lebel@noaa.gov,jsilva@responsegroupinc.com,nwcopeland@loopllc.com,jhellickson@responsegroupinc.com,rcdauterive@loopllc.com,sr-lix.forecasters@noaa.gov,vcarreiro@responsegroupinc.com,apardo@responsegroupinc.com